Add bitcoinjs-bip38-2.0.2 library

[perso/Immae/Projets/Cryptomonnaies/BIP39.git] / bip39-standalone.html

diff --git a/bip39-standalone.html b/bip39-standalone.html
index a00cb688c5fad5cb6a411bbd41a76e8b843b89e3..d5c207f7097dd91b09db16cf2baec0d01b47020f 100644 (file)
--- a/bip39-standalone.html
+++ b/bip39-standalone.html
@@ -4,19984 +4,51134 @@
         <meta charset="utf-8" />
         <title>BIP39 - Mnemonic Code</title>
         <style>/*!
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+ */
+/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
+html {
+  font-family: sans-serif;
+  -webkit-text-size-adjust: 100%;
+      -ms-text-size-adjust: 100%;
+}
+body {
+  margin: 0;
+}
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+main,
+menu,
+nav,
+section,
+summary {
+  display: block;
+}
+audio,
+canvas,
+progress,
+video {
+  display: inline-block;
+  vertical-align: baseline;
+}
+audio:not([controls]) {
+  display: none;
+  height: 0;
+}
+[hidden],
+template {
+  display: none;
+}
+a {
+  background-color: transparent;
+}
+a:active,
+a:hover {
+  outline: 0;
+}
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+b,
+strong {
+  font-weight: bold;
+}
+dfn {
+  font-style: italic;
+}
+h1 {
+  margin: .67em 0;
+  font-size: 2em;
+}
+mark {
+  color: #000;
+  background: #ff0;
+}
+small {
+  font-size: 80%;
+}
+sub,
+sup {
+  position: relative;
+  font-size: 75%;
+  line-height: 0;
+  vertical-align: baseline;
+}
+sup {
+  top: -.5em;
+}
+sub {
+  bottom: -.25em;
+}
+img {
+  border: 0;
+}
+svg:not(:root) {
+  overflow: hidden;
+}
+figure {
+  margin: 1em 40px;
+}
+hr {
+  height: 0;
+  -webkit-box-sizing: content-box;
+     -moz-box-sizing: content-box;
+          box-sizing: content-box;
+}
+pre {
+  overflow: auto;
+}
+code,
+kbd,
+pre,
+samp {
+  font-family: monospace, monospace;
+  font-size: 1em;
+}
+button,
+input,
+optgroup,
+select,
+textarea {
+  margin: 0;
+  font: inherit;
+  color: inherit;
+}
+button {
+  overflow: visible;
+}
+button,
+select {
+  text-transform: none;
+}
+button,
+html input[type="button"],
+input[type="reset"],
+input[type="submit"] {
+  -webkit-appearance: button;
+  cursor: pointer;
+}
+button[disabled],
+html input[disabled] {
+  cursor: default;
+}
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  padding: 0;
+  border: 0;
+}
+input {
+  line-height: normal;
+}
+input[type="checkbox"],
+input[type="radio"] {
+  -webkit-box-sizing: border-box;
+     -moz-box-sizing: border-box;
+          box-sizing: border-box;
+  padding: 0;
+}
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+input[type="search"] {
+  -webkit-box-sizing: content-box;
+     -moz-box-sizing: content-box;
+          box-sizing: content-box;
+  -webkit-appearance: textfield;
+}
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+fieldset {
+  padding: .35em .625em .75em;
+  margin: 0 2px;
+  border: 1px solid #c0c0c0;
+}
+legend {
+  padding: 0;
+  border: 0;
+}
+textarea {
+  overflow: auto;
+}
+optgroup {
+  font-weight: bold;
+}
+table {
+  border-spacing: 0;
+  border-collapse: collapse;
+}
+td,
+th {
+  padding: 0;
+}
+/*! Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css */
+@media print {
+  *,
+  *:before,
+  *:after {
+    color: #000 !important;
+    text-shadow: none !important;
+    background: transparent !important;
+    -webkit-box-shadow: none !important;
+            box-shadow: none !important;
+  }
+  a,
+  a:visited {
+    text-decoration: underline;
+  }
+  a[href]:after {
+    content: " (" attr(href) ")";
+  }
+  abbr[title]:after {
+    content: " (" attr(title) ")";
+  }
+  a[href^="#"]:after,
+  a[href^="javascript:"]:after {
+    content: "";
+  }
+  pre,
+  blockquote {
+    border: 1px solid #999;
+
+    page-break-inside: avoid;
+  }
+  thead {
+    display: table-header-group;
+  }
+  tr,
+  img {
+    page-break-inside: avoid;
+  }
+  img {
+    max-width: 100% !important;
+  }
+  p,
+  h2,
+  h3 {
+    orphans: 3;
+    widows: 3;
+  }
+  h2,
+  h3 {
+    page-break-after: avoid;
+  }
+  .navbar {
+    display: none;
+  }
+  .btn > .caret,
+  .dropup > .btn > .caret {
+    border-top-color: #000 !important;
+  }
+  .label {
+    border: 1px solid #000;
+  }
+  .table {
+    border-collapse: collapse !important;
+  }
+  .table td,
+  .table th {
+    background-color: #fff !important;
+  }
+  .table-bordered th,
+  .table-bordered td {
+    border: 1px solid #ddd !important;
+  }
+}
+@font-face {
+  font-family: 'Glyphicons Halflings';
+
+  src: url('../fonts/glyphicons-halflings-regular.eot');
+  src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff2') format('woff2'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular') format('svg');
+}
+.glyphicon {
+  position: relative;
+  top: 1px;
+  display: inline-block;
+  font-family: 'Glyphicons Halflings';
+  font-style: normal;
+  font-weight: normal;
+  line-height: 1;
+
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+.glyphicon-asterisk:before {
+  content: "\002a";
+}
+.glyphicon-plus:before {
+  content: "\002b";
+}
+.glyphicon-euro:before,
+.glyphicon-eur:before {
+  content: "\20ac";
+}
+.glyphicon-minus:before {
+  content: "\2212";
+}
+.glyphicon-cloud:before {
+  content: "\2601";
+}
+.glyphicon-envelope:before {
+  content: "\2709";
+}
+.glyphicon-pencil:before {
+  content: "\270f";
+}
+.glyphicon-glass:before {
+  content: "\e001";
+}
+.glyphicon-music:before {
+  content: "\e002";
+}
+.glyphicon-search:before {
+  content: "\e003";
+}
+.glyphicon-heart:before {
+  content: "\e005";
+}
+.glyphicon-star:before {
+  content: "\e006";
+}
+.glyphicon-star-empty:before {
+  content: "\e007";
+}
+.glyphicon-user:before {
+  content: "\e008";
+}
+.glyphicon-film:before {
+  content: "\e009";
+}
+.glyphicon-th-large:before {
+  content: "\e010";
+}
+.glyphicon-th:before {
+  content: "\e011";
+}
+.glyphicon-th-list:before {
+  content: "\e012";
+}
+.glyphicon-ok:before {
+  content: "\e013";
+}
+.glyphicon-remove:before {
+  content: "\e014";
+}
+.glyphicon-zoom-in:before {
+  content: "\e015";
+}
+.glyphicon-zoom-out:before {
+  content: "\e016";
+}
+.glyphicon-off:before {
+  content: "\e017";
+}
+.glyphicon-signal:before {
+  content: "\e018";
+}
+.glyphicon-cog:before {
+  content: "\e019";
+}
+.glyphicon-trash:before {
+  content: "\e020";
+}
+.glyphicon-home:before {
+  content: "\e021";
+}
+.glyphicon-file:before {
+  content: "\e022";
+}
+.glyphicon-time:before {
+  content: "\e023";
+}
+.glyphicon-road:before {
+  content: "\e024";
+}
+.glyphicon-download-alt:before {
+  content: "\e025";
+}
+.glyphicon-download:before {
+  content: "\e026";
+}
+.glyphicon-upload:before {
+  content: "\e027";
+}
+.glyphicon-inbox:before {
+  content: "\e028";
+}
+.glyphicon-play-circle:before {
+  content: "\e029";
+}
+.glyphicon-repeat:before {
+  content: "\e030";
+}
+.glyphicon-refresh:before {
+  content: "\e031";
+}
+.glyphicon-list-alt:before {
+  content: "\e032";
+}
+.glyphicon-lock:before {
+  content: "\e033";
+}
+.glyphicon-flag:before {
+  content: "\e034";
+}
+.glyphicon-headphones:before {
+  content: "\e035";
+}
+.glyphicon-volume-off:before {
+  content: "\e036";
+}
+.glyphicon-volume-down:before {
+  content: "\e037";
+}
+.glyphicon-volume-up:before {
+  content: "\e038";
+}
+.glyphicon-qrcode:before {
+  content: "\e039";
+}
+.glyphicon-barcode:before {
+  content: "\e040";
+}
+.glyphicon-tag:before {
+  content: "\e041";
+}
+.glyphicon-tags:before {
+  content: "\e042";
+}
+.glyphicon-book:before {
+  content: "\e043";
+}
+.glyphicon-bookmark:before {
+  content: "\e044";
+}
+.glyphicon-print:before {
+  content: "\e045";
+}
+.glyphicon-camera:before {
+  content: "\e046";
+}
+.glyphicon-font:before {
+  content: "\e047";
+}
+.glyphicon-bold:before {
+  content: "\e048";
+}
+.glyphicon-italic:before {
+  content: "\e049";
+}
+.glyphicon-text-height:before {
+  content: "\e050";
+}
+.glyphicon-text-width:before {
+  content: "\e051";
+}
+.glyphicon-align-left:before {
+  content: "\e052";
+}
+.glyphicon-align-center:before {
+  content: "\e053";
+}
+.glyphicon-align-right:before {
+  content: "\e054";
+}
+.glyphicon-align-justify:before {
+  content: "\e055";
+}
+.glyphicon-list:before {
+  content: "\e056";
+}
+.glyphicon-indent-left:before {
+  content: "\e057";
+}
+.glyphicon-indent-right:before {
+  content: "\e058";
+}
+.glyphicon-facetime-video:before {
+  content: "\e059";
+}
+.glyphicon-picture:before {
+  content: "\e060";
+}
+.glyphicon-map-marker:before {
+  content: "\e062";
+}
+.glyphicon-adjust:before {
+  content: "\e063";
+}
+.glyphicon-tint:before {
+  content: "\e064";
+}
+.glyphicon-edit:before {
+  content: "\e065";
+}
+.glyphicon-share:before {
+  content: "\e066";
+}
+.glyphicon-check:before {
+  content: "\e067";
+}
+.glyphicon-move:before {
+  content: "\e068";
+}
+.glyphicon-step-backward:before {
+  content: "\e069";
+}
+.glyphicon-fast-backward:before {
+  content: "\e070";
+}
+.glyphicon-backward:before {
+  content: "\e071";
+}
+.glyphicon-play:before {
+  content: "\e072";
+}
+.glyphicon-pause:before {
+  content: "\e073";
+}
+.glyphicon-stop:before {
+  content: "\e074";
+}
+.glyphicon-forward:before {
+  content: "\e075";
+}
+.glyphicon-fast-forward:before {
+  content: "\e076";
+}
+.glyphicon-step-forward:before {
+  content: "\e077";
+}
+.glyphicon-eject:before {
+  content: "\e078";
+}
+.glyphicon-chevron-left:before {
+  content: "\e079";
+}
+.glyphicon-chevron-right:before {
+  content: "\e080";
+}
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+  content: "\e081";
+}
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+  content: "\e082";
+}
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+  content: "\e083";
+}
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+  content: "\e084";
+}
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+  content: "\e085";
+}
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+  content: "\e086";
+}
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+  content: "\e087";
+}
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+  content: "\e088";
+}
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+  content: "\e089";
+}
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+  content: "\e090";
+}
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+  content: "\e091";
+}
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+  content: "\e092";
+}
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+  content: "\e093";
+}
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+  content: "\e094";
+}
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+  content: "\e095";
+}
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+  content: "\e096";
+}
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+  content: "\e097";
+}
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+  content: "\e101";
+}
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+  content: "\e102";
+}
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+  content: "\e103";
+}
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+  content: "\e104";
+}
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+  content: "\e105";
+}
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+  content: "\e106";
+}
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+  content: "\e107";
+}
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+  content: "\e108";
+}
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+  content: "\e109";
+}
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+  content: "\e110";
+}
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+  content: "\e111";
+}
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+  content: "\e112";
+}
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+  content: "\e113";
+}
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+}
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+  content: "\e115";
+}
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+  content: "\e116";
+}
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+  content: "\e117";
+}
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+  content: "\e118";
+}
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+  content: "\e119";
+}
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+  content: "\e120";
+}
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+  content: "\e121";
+}
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+  content: "\e122";
+}
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+  content: "\e123";
+}
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+}
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+}
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+}
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+}
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+}
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+}
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+  content: "\e130";
+}
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+  content: "\e131";
+}
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+  content: "\e132";
+}
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+  content: "\e133";
+}
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+}
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+}
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+  content: "\e136";
+}
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+}
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+  content: "\e138";
+}
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+  content: "\e139";
+}
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+  content: "\e140";
+}
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+  content: "\e141";
+}
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+  content: "\e142";
+}
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+  content: "\e143";
+}
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+  content: "\e144";
+}
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+  content: "\e145";
+}
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+  content: "\e146";
+}
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+}
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+}
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+  content: "\e150";
+}
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+  content: "\e151";
+}
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+  content: "\e152";
+}
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+  content: "\e153";
+}
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+  content: "\e154";
+}
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+  content: "\e155";
+}
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+}
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+  content: "\e157";
+}
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+  content: "\e158";
+}
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+  content: "\e159";
+}
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+  content: "\e160";
+}
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+  content: "\e161";
+}
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+  content: "\e162";
+}
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+  content: "\e163";
+}
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+  content: "\e164";
+}
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+  content: "\e165";
+}
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+}
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+}
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+}
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+  content: "\e172";
+}
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+  content: "\e173";
+}
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+  content: "\e174";
+}
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+  content: "\e175";
+}
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+  content: "\e176";
+}
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+  content: "\e177";
+}
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+  content: "\e178";
+}
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+  content: "\e179";
+}
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+  content: "\e180";
+}
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+  content: "\e181";
+}
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+  content: "\e182";
+}
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+  content: "\e183";
+}
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+  content: "\e184";
+}
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+}
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+}
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+}
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+}
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+}
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+  content: "\e190";
+}
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+  content: "\e191";
+}
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+  content: "\e192";
+}
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+  content: "\e193";
+}
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+  content: "\e194";
+}
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+  content: "\e195";
+}
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+  content: "\e197";
+}
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+  content: "\e198";
+}
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+  content: "\e199";
+}
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+  content: "\e200";
+}
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+}
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+}
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+}
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+}
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+}
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+  content: "\e206";
+}
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+  content: "\e209";
+}
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+}
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+  content: "\e211";
+}
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+  content: "\e212";
+}
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+  content: "\e213";
+}
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+  content: "\e214";
+}
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+  content: "\e215";
+}
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+  content: "\e216";
+}
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+  content: "\26fa";
+}
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+  content: "\e218";
+}
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+  content: "\e219";
+}
+.glyphicon-apple:before {
+  content: "\f8ff";
+}
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+  content: "\e221";
+}
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+  content: "\231b";
+}
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+  content: "\e223";
+}
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+  content: "\e224";
+}
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+  content: "\e225";
+}
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+  content: "\e226";
+}
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+  content: "\e227";
+}
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+  content: "\e227";
+}
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+  content: "\e227";
+}
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+  content: "\00a5";
+}
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+  content: "\00a5";
+}
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+  content: "\20bd";
+}
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+  content: "\20bd";
+}
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+  content: "\e230";
+}
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+  content: "\e231";
+}
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+  content: "\e232";
+}
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+  content: "\e233";
+}
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+  content: "\e234";
+}
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+  content: "\e235";
+}
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+  content: "\e236";
+}
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+  content: "\e237";
+}
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+  content: "\e238";
+}
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+  content: "\e239";
+}
+.glyphicon-sunglasses:before {
+  content: "\e240";
+}
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+  content: "\e241";
+}
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+  content: "\e242";
+}
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+  content: "\e243";
+}
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+  content: "\e244";
+}
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+  content: "\e245";
+}
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+  content: "\e246";
+}
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+  content: "\e247";
+}
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+  content: "\e248";
+}
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+  content: "\e249";
+}
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+  content: "\e250";
+}
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+}
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+  content: "\e252";
+}
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+  content: "\e253";
+}
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+  content: "\e254";
+}
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+  content: "\e255";
+}
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+  content: "\e256";
+}
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+  content: "\e257";
+}
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+  content: "\e258";
+}
+.glyphicon-menu-down:before {
+  content: "\e259";
+}
+.glyphicon-menu-up:before {
+  content: "\e260";
+}
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+  -webkit-box-sizing: border-box;
+     -moz-box-sizing: border-box;
+          box-sizing: border-box;
+}
+*:before,
+*:after {
+  -webkit-box-sizing: border-box;
+     -moz-box-sizing: border-box;
+          box-sizing: border-box;
+}
+html {
+  font-size: 10px;
+
+  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+}
+body {
+  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+  font-size: 14px;
+  line-height: 1.42857143;
+  color: #333;
+  background-color: #fff;
+}
+input,
+button,
+select,
+textarea {
+  font-family: inherit;
+  font-size: inherit;
+  line-height: inherit;
+}
+a {
+  color: #337ab7;
+  text-decoration: none;
+}
+a:hover,
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+  color: #23527c;
+  text-decoration: underline;
+}
+a:focus {
+  outline: 5px auto -webkit-focus-ring-color;
+  outline-offset: -2px;
+}
+figure {
+  margin: 0;
+}
+img {
+  vertical-align: middle;
+}
+.img-responsive,
+.thumbnail > img,
+.thumbnail a > img,
+.carousel-inner > .item > img,
+.carousel-inner > .item > a > img {
+  display: block;
+  max-width: 100%;
+  height: auto;
+}
+.img-rounded {
+  border-radius: 6px;
+}
+.img-thumbnail {
+  display: inline-block;
+  max-width: 100%;
+  height: auto;
+  padding: 4px;
+  line-height: 1.42857143;
+  background-color: #fff;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  -webkit-transition: all .2s ease-in-out;
+       -o-transition: all .2s ease-in-out;
+          transition: all .2s ease-in-out;
+}
+.img-circle {
+  border-radius: 50%;
+}
+hr {
+  margin-top: 20px;
+  margin-bottom: 20px;
+  border: 0;
+  border-top: 1px solid #eee;
+}
+.sr-only {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  border: 0;
+}
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+  position: static;
+  width: auto;
+  height: auto;
+  margin: 0;
+  overflow: visible;
+  clip: auto;
+}
+[role="button"] {
+  cursor: pointer;
+}
+h1,
+h2,
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+h4,
+h5,
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+  font-family: inherit;
+  font-weight: 500;
+  line-height: 1.1;
+  color: inherit;
+}
+h1 small,
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+  font-weight: normal;
+  line-height: 1;
+  color: #777;
+}
+h1,
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+h3,
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+  margin-top: 20px;
+  margin-bottom: 10px;
+}
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+}
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+  margin-bottom: 10px;
+}
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+}
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+  font-size: 36px;
+}
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+  font-size: 30px;
+}
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+}
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+}
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+}
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+  font-size: 12px;
+}
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+  margin: 0 0 10px;
+}
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+  margin-bottom: 20px;
+  font-size: 16px;
+  font-weight: 300;
+  line-height: 1.4;
+}
+@media (min-width: 768px) {
+  .lead {
+    font-size: 21px;
+  }
+}
+small,
+.small {
+  font-size: 85%;
+}
+mark,
+.mark {
+  padding: .2em;
+  background-color: #fcf8e3;
+}
+.text-left {
+  text-align: left;
+}
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+  text-align: right;
+}
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+  text-align: center;
+}
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+  text-align: justify;
+}
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+  white-space: nowrap;
+}
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+  text-transform: lowercase;
+}
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+  text-transform: uppercase;
+}
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+  text-transform: capitalize;
+}
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+  color: #777;
+}
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+  color: #337ab7;
+}
+a.text-primary:hover,
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+  color: #286090;
+}
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+  color: #3c763d;
+}
+a.text-success:hover,
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+  color: #2b542c;
+}
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+  color: #31708f;
+}
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+a.text-info:focus {
+  color: #245269;
+}
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+  color: #8a6d3b;
+}
+a.text-warning:hover,
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+  color: #66512c;
+}
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+  color: #a94442;
+}
+a.text-danger:hover,
+a.text-danger:focus {
+  color: #843534;
+}
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+  color: #fff;
+  background-color: #337ab7;
+}
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+}
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+  background-color: #dff0d8;
+}
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+}
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+  background-color: #d9edf7;
+}
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+}
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+  background-color: #fcf8e3;
+}
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+  background-color: #f7ecb5;
+}
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+  background-color: #f2dede;
+}
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+}
+.page-header {
+  padding-bottom: 9px;
+  margin: 40px 0 20px;
+  border-bottom: 1px solid #eee;
+}
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+  margin-top: 0;
+  margin-bottom: 10px;
+}
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+  margin-bottom: 0;
+}
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+  padding-left: 0;
+  list-style: none;
+}
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+  padding-left: 0;
+  margin-left: -5px;
+  list-style: none;
+}
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+  display: inline-block;
+  padding-right: 5px;
+  padding-left: 5px;
+}
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+  margin-top: 0;
+  margin-bottom: 20px;
+}
+dt,
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+  line-height: 1.42857143;
+}
+dt {
+  font-weight: bold;
+}
+dd {
+  margin-left: 0;
+}
+@media (min-width: 768px) {
+  .dl-horizontal dt {
+    float: left;
+    width: 160px;
+    overflow: hidden;
+    clear: left;
+    text-align: right;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+  .dl-horizontal dd {
+    margin-left: 180px;
+  }
+}
+abbr[title],
+abbr[data-original-title] {
+  cursor: help;
+  border-bottom: 1px dotted #777;
+}
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+  font-size: 90%;
+  text-transform: uppercase;
+}
+blockquote {
+  padding: 10px 20px;
+  margin: 0 0 20px;
+  font-size: 17.5px;
+  border-left: 5px solid #eee;
+}
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+blockquote ul:last-child,
+blockquote ol:last-child {
+  margin-bottom: 0;
+}
+blockquote footer,
+blockquote small,
+blockquote .small {
+  display: block;
+  font-size: 80%;
+  line-height: 1.42857143;
+  color: #777;
+}
+blockquote footer:before,
+blockquote small:before,
+blockquote .small:before {
+  content: '\2014 \00A0';
+}
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+blockquote.pull-right {
+  padding-right: 15px;
+  padding-left: 0;
+  text-align: right;
+  border-right: 5px solid #eee;
+  border-left: 0;
+}
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+blockquote.pull-right footer:before,
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+blockquote.pull-right small:before,
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+blockquote.pull-right .small:before {
+  content: '';
+}
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+blockquote.pull-right footer:after,
+.blockquote-reverse small:after,
+blockquote.pull-right small:after,
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+blockquote.pull-right .small:after {
+  content: '\00A0 \2014';
+}
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+  margin-bottom: 20px;
+  font-style: normal;
+  line-height: 1.42857143;
+}
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+kbd,
+pre,
+samp {
+  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
+}
+code {
+  padding: 2px 4px;
+  font-size: 90%;
+  color: #c7254e;
+  background-color: #f9f2f4;
+  border-radius: 4px;
+}
+kbd {
+  padding: 2px 4px;
+  font-size: 90%;
+  color: #fff;
+  background-color: #333;
+  border-radius: 3px;
+  -webkit-box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .25);
+          box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .25);
+}
+kbd kbd {
+  padding: 0;
+  font-size: 100%;
+  font-weight: bold;
+  -webkit-box-shadow: none;
+          box-shadow: none;
+}
+pre {
+  display: block;
+  padding: 9.5px;
+  margin: 0 0 10px;
+  font-size: 13px;
+  line-height: 1.42857143;
+  color: #333;
+  word-break: break-all;
+  word-wrap: break-word;
+  background-color: #f5f5f5;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+}
+pre code {
+  padding: 0;
+  font-size: inherit;
+  color: inherit;
+  white-space: pre-wrap;
+  background-color: transparent;
+  border-radius: 0;
+}
+.pre-scrollable {
+  max-height: 340px;
+  overflow-y: scroll;
+}
+.container {
+  padding-right: 15px;
+  padding-left: 15px;
+  margin-right: auto;
+  margin-left: auto;
+}
+@media (min-width: 768px) {
+  .container {
+    width: 750px;
+  }
+}
+@media (min-width: 992px) {
+  .container {
+    width: 970px;
+  }
+}
+@media (min-width: 1200px) {
+  .container {
+    width: 1170px;
+  }
+}
+.container-fluid {
+  padding-right: 15px;
+  padding-left: 15px;
+  margin-right: auto;
+  margin-left: auto;
+}
+.row {
+  margin-right: -15px;
+  margin-left: -15px;
+}
+.col-xs-1, .col-sm-1, .col-md-1, .col-lg-1, .col-xs-2, .col-sm-2, .col-md-2, .col-lg-2, .col-xs-3, .col-sm-3, .col-md-3, .col-lg-3, .col-xs-4, .col-sm-4, .col-md-4, .col-lg-4, .col-xs-5, .col-sm-5, .col-md-5, .col-lg-5, .col-xs-6, .col-sm-6, .col-md-6, .col-lg-6, .col-xs-7, .col-sm-7, .col-md-7, .col-lg-7, .col-xs-8, .col-sm-8, .col-md-8, .col-lg-8, .col-xs-9, .col-sm-9, .col-md-9, .col-lg-9, .col-xs-10, .col-sm-10, .col-md-10, .col-lg-10, .col-xs-11, .col-sm-11, .col-md-11, .col-lg-11, .col-xs-12, .col-sm-12, .col-md-12, .col-lg-12 {
+  position: relative;
+  min-height: 1px;
+  padding-right: 15px;
+  padding-left: 15px;
+}
+.col-xs-1, .col-xs-2, .col-xs-3, .col-xs-4, .col-xs-5, .col-xs-6, .col-xs-7, .col-xs-8, .col-xs-9, .col-xs-10, .col-xs-11, .col-xs-12 {
+  float: left;
+}
+.col-xs-12 {
+  width: 100%;
+}
+.col-xs-11 {
+  width: 91.66666667%;
+}
+.col-xs-10 {
+  width: 83.33333333%;
+}
+.col-xs-9 {
+  width: 75%;
+}
+.col-xs-8 {
+  width: 66.66666667%;
+}
+.col-xs-7 {
+  width: 58.33333333%;
+}
+.col-xs-6 {
+  width: 50%;
+}
+.col-xs-5 {
+  width: 41.66666667%;
+}
+.col-xs-4 {
+  width: 33.33333333%;
+}
+.col-xs-3 {
+  width: 25%;
+}
+.col-xs-2 {
+  width: 16.66666667%;
+}
+.col-xs-1 {
+  width: 8.33333333%;
+}
+.col-xs-pull-12 {
+  right: 100%;
+}
+.col-xs-pull-11 {
+  right: 91.66666667%;
+}
+.col-xs-pull-10 {
+  right: 83.33333333%;
+}
+.col-xs-pull-9 {
+  right: 75%;
+}
+.col-xs-pull-8 {
+  right: 66.66666667%;
+}
+.col-xs-pull-7 {
+  right: 58.33333333%;
+}
+.col-xs-pull-6 {
+  right: 50%;
+}
+.col-xs-pull-5 {
+  right: 41.66666667%;
+}
+.col-xs-pull-4 {
+  right: 33.33333333%;
+}
+.col-xs-pull-3 {
+  right: 25%;
+}
+.col-xs-pull-2 {
+  right: 16.66666667%;
+}
+.col-xs-pull-1 {
+  right: 8.33333333%;
+}
+.col-xs-pull-0 {
+  right: auto;
+}
+.col-xs-push-12 {
+  left: 100%;
+}
+.col-xs-push-11 {
+  left: 91.66666667%;
+}
+.col-xs-push-10 {
+  left: 83.33333333%;
+}
+.col-xs-push-9 {
+  left: 75%;
+}
+.col-xs-push-8 {
+  left: 66.66666667%;
+}
+.col-xs-push-7 {
+  left: 58.33333333%;
+}
+.col-xs-push-6 {
+  left: 50%;
+}
+.col-xs-push-5 {
+  left: 41.66666667%;
+}
+.col-xs-push-4 {
+  left: 33.33333333%;
+}
+.col-xs-push-3 {
+  left: 25%;
+}
+.col-xs-push-2 {
+  left: 16.66666667%;
+}
+.col-xs-push-1 {
+  left: 8.33333333%;
+}
+.col-xs-push-0 {
+  left: auto;
+}
+.col-xs-offset-12 {
+  margin-left: 100%;
+}
+.col-xs-offset-11 {
+  margin-left: 91.66666667%;
+}
+.col-xs-offset-10 {
+  margin-left: 83.33333333%;
+}
+.col-xs-offset-9 {
+  margin-left: 75%;
+}
+.col-xs-offset-8 {
+  margin-left: 66.66666667%;
+}
+.col-xs-offset-7 {
+  margin-left: 58.33333333%;
+}
+.col-xs-offset-6 {
+  margin-left: 50%;
+}
+.col-xs-offset-5 {
+  margin-left: 41.66666667%;
+}
+.col-xs-offset-4 {
+  margin-left: 33.33333333%;
+}
+.col-xs-offset-3 {
+  margin-left: 25%;
+}
+.col-xs-offset-2 {
+  margin-left: 16.66666667%;
+}
+.col-xs-offset-1 {
+  margin-left: 8.33333333%;
+}
+.col-xs-offset-0 {
+  margin-left: 0;
+}
+@media (min-width: 768px) {
+  .col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12 {
+    float: left;
+  }
+  .col-sm-12 {
+    width: 100%;
+  }
+  .col-sm-11 {
+    width: 91.66666667%;
+  }
+  .col-sm-10 {
+    width: 83.33333333%;
+  }
+  .col-sm-9 {
+    width: 75%;
+  }
+  .col-sm-8 {
+    width: 66.66666667%;
+  }
+  .col-sm-7 {
+    width: 58.33333333%;
+  }
+  .col-sm-6 {
+    width: 50%;
+  }
+  .col-sm-5 {
+    width: 41.66666667%;
+  }
+  .col-sm-4 {
+    width: 33.33333333%;
+  }
+  .col-sm-3 {
+    width: 25%;
+  }
+  .col-sm-2 {
+    width: 16.66666667%;
+  }
+  .col-sm-1 {
+    width: 8.33333333%;
+  }
+  .col-sm-pull-12 {
+    right: 100%;
+  }
+  .col-sm-pull-11 {
+    right: 91.66666667%;
+  }
+  .col-sm-pull-10 {
+    right: 83.33333333%;
+  }
+  .col-sm-pull-9 {
+    right: 75%;
+  }
+  .col-sm-pull-8 {
+    right: 66.66666667%;
+  }
+  .col-sm-pull-7 {
+    right: 58.33333333%;
+  }
+  .col-sm-pull-6 {
+    right: 50%;
+  }
+  .col-sm-pull-5 {
+    right: 41.66666667%;
+  }
+  .col-sm-pull-4 {
+    right: 33.33333333%;
+  }
+  .col-sm-pull-3 {
+    right: 25%;
+  }
+  .col-sm-pull-2 {
+    right: 16.66666667%;
+  }
+  .col-sm-pull-1 {
+    right: 8.33333333%;
+  }
+  .col-sm-pull-0 {
+    right: auto;
+  }
+  .col-sm-push-12 {
+    left: 100%;
+  }
+  .col-sm-push-11 {
+    left: 91.66666667%;
+  }
+  .col-sm-push-10 {
+    left: 83.33333333%;
+  }
+  .col-sm-push-9 {
+    left: 75%;
+  }
+  .col-sm-push-8 {
+    left: 66.66666667%;
+  }
+  .col-sm-push-7 {
+    left: 58.33333333%;
+  }
+  .col-sm-push-6 {
+    left: 50%;
+  }
+  .col-sm-push-5 {
+    left: 41.66666667%;
+  }
+  .col-sm-push-4 {
+    left: 33.33333333%;
+  }
+  .col-sm-push-3 {
+    left: 25%;
+  }
+  .col-sm-push-2 {
+    left: 16.66666667%;
+  }
+  .col-sm-push-1 {
+    left: 8.33333333%;
+  }
+  .col-sm-push-0 {
+    left: auto;
+  }
+  .col-sm-offset-12 {
+    margin-left: 100%;
+  }
+  .col-sm-offset-11 {
+    margin-left: 91.66666667%;
+  }
+  .col-sm-offset-10 {
+    margin-left: 83.33333333%;
+  }
+  .col-sm-offset-9 {
+    margin-left: 75%;
+  }
+  .col-sm-offset-8 {
+    margin-left: 66.66666667%;
+  }
+  .col-sm-offset-7 {
+    margin-left: 58.33333333%;
+  }
+  .col-sm-offset-6 {
+    margin-left: 50%;
+  }
+  .col-sm-offset-5 {
+    margin-left: 41.66666667%;
+  }
+  .col-sm-offset-4 {
+    margin-left: 33.33333333%;
+  }
+  .col-sm-offset-3 {
+    margin-left: 25%;
+  }
+  .col-sm-offset-2 {
+    margin-left: 16.66666667%;
+  }
+  .col-sm-offset-1 {
+    margin-left: 8.33333333%;
+  }
+  .col-sm-offset-0 {
+    margin-left: 0;
+  }
+}
+@media (min-width: 992px) {
+  .col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 {
+    float: left;
+  }
+  .col-md-12 {
+    width: 100%;
+  }
+  .col-md-11 {
+    width: 91.66666667%;
+  }
+  .col-md-10 {
+    width: 83.33333333%;
+  }
+  .col-md-9 {
+    width: 75%;
+  }
+  .col-md-8 {
+    width: 66.66666667%;
+  }
+  .col-md-7 {
+    width: 58.33333333%;
+  }
+  .col-md-6 {
+    width: 50%;
+  }
+  .col-md-5 {
+    width: 41.66666667%;
+  }
+  .col-md-4 {
+    width: 33.33333333%;
+  }
+  .col-md-3 {
+    width: 25%;
+  }
+  .col-md-2 {
+    width: 16.66666667%;
+  }
+  .col-md-1 {
+    width: 8.33333333%;
+  }
+  .col-md-pull-12 {
+    right: 100%;
+  }
+  .col-md-pull-11 {
+    right: 91.66666667%;
+  }
+  .col-md-pull-10 {
+    right: 83.33333333%;
+  }
+  .col-md-pull-9 {
+    right: 75%;
+  }
+  .col-md-pull-8 {
+    right: 66.66666667%;
+  }
+  .col-md-pull-7 {
+    right: 58.33333333%;
+  }
+  .col-md-pull-6 {
+    right: 50%;
+  }
+  .col-md-pull-5 {
+    right: 41.66666667%;
+  }
+  .col-md-pull-4 {
+    right: 33.33333333%;
+  }
+  .col-md-pull-3 {
+    right: 25%;
+  }
+  .col-md-pull-2 {
+    right: 16.66666667%;
+  }
+  .col-md-pull-1 {
+    right: 8.33333333%;
+  }
+  .col-md-pull-0 {
+    right: auto;
+  }
+  .col-md-push-12 {
+    left: 100%;
+  }
+  .col-md-push-11 {
+    left: 91.66666667%;
+  }
+  .col-md-push-10 {
+    left: 83.33333333%;
+  }
+  .col-md-push-9 {
+    left: 75%;
+  }
+  .col-md-push-8 {
+    left: 66.66666667%;
+  }
+  .col-md-push-7 {
+    left: 58.33333333%;
+  }
+  .col-md-push-6 {
+    left: 50%;
+  }
+  .col-md-push-5 {
+    left: 41.66666667%;
+  }
+  .col-md-push-4 {
+    left: 33.33333333%;
+  }
+  .col-md-push-3 {
+    left: 25%;
+  }
+  .col-md-push-2 {
+    left: 16.66666667%;
+  }
+  .col-md-push-1 {
+    left: 8.33333333%;
+  }
+  .col-md-push-0 {
+    left: auto;
+  }
+  .col-md-offset-12 {
+    margin-left: 100%;
+  }
+  .col-md-offset-11 {
+    margin-left: 91.66666667%;
+  }
+  .col-md-offset-10 {
+    margin-left: 83.33333333%;
+  }
+  .col-md-offset-9 {
+    margin-left: 75%;
+  }
+  .col-md-offset-8 {
+    margin-left: 66.66666667%;
+  }
+  .col-md-offset-7 {
+    margin-left: 58.33333333%;
+  }
+  .col-md-offset-6 {
+    margin-left: 50%;
+  }
+  .col-md-offset-5 {
+    margin-left: 41.66666667%;
+  }
+  .col-md-offset-4 {
+    margin-left: 33.33333333%;
+  }
+  .col-md-offset-3 {
+    margin-left: 25%;
+  }
+  .col-md-offset-2 {
+    margin-left: 16.66666667%;
+  }
+  .col-md-offset-1 {
+    margin-left: 8.33333333%;
+  }
+  .col-md-offset-0 {
+    margin-left: 0;
+  }
+}
+@media (min-width: 1200px) {
+  .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12 {
+    float: left;
+  }
+  .col-lg-12 {
+    width: 100%;
+  }
+  .col-lg-11 {
+    width: 91.66666667%;
+  }
+  .col-lg-10 {
+    width: 83.33333333%;
+  }
+  .col-lg-9 {
+    width: 75%;
+  }
+  .col-lg-8 {
+    width: 66.66666667%;
+  }
+  .col-lg-7 {
+    width: 58.33333333%;
+  }
+  .col-lg-6 {
+    width: 50%;
+  }
+  .col-lg-5 {
+    width: 41.66666667%;
+  }
+  .col-lg-4 {
+    width: 33.33333333%;
+  }
+  .col-lg-3 {
+    width: 25%;
+  }
+  .col-lg-2 {
+    width: 16.66666667%;
+  }
+  .col-lg-1 {
+    width: 8.33333333%;
+  }
+  .col-lg-pull-12 {
+    right: 100%;
+  }
+  .col-lg-pull-11 {
+    right: 91.66666667%;
+  }
+  .col-lg-pull-10 {
+    right: 83.33333333%;
+  }
+  .col-lg-pull-9 {
+    right: 75%;
+  }
+  .col-lg-pull-8 {
+    right: 66.66666667%;
+  }
+  .col-lg-pull-7 {
+    right: 58.33333333%;
+  }
+  .col-lg-pull-6 {
+    right: 50%;
+  }
+  .col-lg-pull-5 {
+    right: 41.66666667%;
+  }
+  .col-lg-pull-4 {
+    right: 33.33333333%;
+  }
+  .col-lg-pull-3 {
+    right: 25%;
+  }
+  .col-lg-pull-2 {
+    right: 16.66666667%;
+  }
+  .col-lg-pull-1 {
+    right: 8.33333333%;
+  }
+  .col-lg-pull-0 {
+    right: auto;
+  }
+  .col-lg-push-12 {
+    left: 100%;
+  }
+  .col-lg-push-11 {
+    left: 91.66666667%;
+  }
+  .col-lg-push-10 {
+    left: 83.33333333%;
+  }
+  .col-lg-push-9 {
+    left: 75%;
+  }
+  .col-lg-push-8 {
+    left: 66.66666667%;
+  }
+  .col-lg-push-7 {
+    left: 58.33333333%;
+  }
+  .col-lg-push-6 {
+    left: 50%;
+  }
+  .col-lg-push-5 {
+    left: 41.66666667%;
+  }
+  .col-lg-push-4 {
+    left: 33.33333333%;
+  }
+  .col-lg-push-3 {
+    left: 25%;
+  }
+  .col-lg-push-2 {
+    left: 16.66666667%;
+  }
+  .col-lg-push-1 {
+    left: 8.33333333%;
+  }
+  .col-lg-push-0 {
+    left: auto;
+  }
+  .col-lg-offset-12 {
+    margin-left: 100%;
+  }
+  .col-lg-offset-11 {
+    margin-left: 91.66666667%;
+  }
+  .col-lg-offset-10 {
+    margin-left: 83.33333333%;
+  }
+  .col-lg-offset-9 {
+    margin-left: 75%;
+  }
+  .col-lg-offset-8 {
+    margin-left: 66.66666667%;
+  }
+  .col-lg-offset-7 {
+    margin-left: 58.33333333%;
+  }
+  .col-lg-offset-6 {
+    margin-left: 50%;
+  }
+  .col-lg-offset-5 {
+    margin-left: 41.66666667%;
+  }
+  .col-lg-offset-4 {
+    margin-left: 33.33333333%;
+  }
+  .col-lg-offset-3 {
+    margin-left: 25%;
+  }
+  .col-lg-offset-2 {
+    margin-left: 16.66666667%;
+  }
+  .col-lg-offset-1 {
+    margin-left: 8.33333333%;
+  }
+  .col-lg-offset-0 {
+    margin-left: 0;
+  }
+}
+table {
+  background-color: transparent;
+}
+caption {
+  padding-top: 8px;
+  padding-bottom: 8px;
+  color: #777;
+  text-align: left;
+}
+th {
+  text-align: left;
+}
+.table {
+  width: 100%;
+  max-width: 100%;
+  margin-bottom: 20px;
+}
+.table > thead > tr > th,
+.table > tbody > tr > th,
+.table > tfoot > tr > th,
+.table > thead > tr > td,
+.table > tbody > tr > td,
+.table > tfoot > tr > td {
+  padding: 8px;
+  line-height: 1.42857143;
+  vertical-align: top;
+  border-top: 1px solid #ddd;
+}
+.table > thead > tr > th {
+  vertical-align: bottom;
+  border-bottom: 2px solid #ddd;
+}
+.table > caption + thead > tr:first-child > th,
+.table > colgroup + thead > tr:first-child > th,
+.table > thead:first-child > tr:first-child > th,
+.table > caption + thead > tr:first-child > td,
+.table > colgroup + thead > tr:first-child > td,
+.table > thead:first-child > tr:first-child > td {
+  border-top: 0;
+}
+.table > tbody + tbody {
+  border-top: 2px solid #ddd;
+}
+.table .table {
+  background-color: #fff;
+}
+.table-condensed > thead > tr > th,
+.table-condensed > tbody > tr > th,
+.table-condensed > tfoot > tr > th,
+.table-condensed > thead > tr > td,
+.table-condensed > tbody > tr > td,
+.table-condensed > tfoot > tr > td {
+  padding: 5px;
+}
+.table-bordered {
+  border: 1px solid #ddd;
+}
+.table-bordered > thead > tr > th,
+.table-bordered > tbody > tr > th,
+.table-bordered > tfoot > tr > th,
+.table-bordered > thead > tr > td,
+.table-bordered > tbody > tr > td,
+.table-bordered > tfoot > tr > td {
+  border: 1px solid #ddd;
+}
+.table-bordered > thead > tr > th,
+.table-bordered > thead > tr > td {
+  border-bottom-width: 2px;
+}
+.table-striped > tbody > tr:nth-of-type(odd) {
+  background-color: #f9f9f9;
+}
+.table-hover > tbody > tr:hover {
+  background-color: #f5f5f5;
+}
+table col[class*="col-"] {
+  position: static;
+  display: table-column;
+  float: none;
+}
+table td[class*="col-"],
+table th[class*="col-"] {
+  position: static;
+  display: table-cell;
+  float: none;
+}
+.table > thead > tr > td.active,
+.table > tbody > tr > td.active,
+.table > tfoot > tr > td.active,
+.table > thead > tr > th.active,
+.table > tbody > tr > th.active,
+.table > tfoot > tr > th.active,
+.table > thead > tr.active > td,
+.table > tbody > tr.active > td,
+.table > tfoot > tr.active > td,
+.table > thead > tr.active > th,
+.table > tbody > tr.active > th,
+.table > tfoot > tr.active > th {
+  background-color: #f5f5f5;
+}
+.table-hover > tbody > tr > td.active:hover,
+.table-hover > tbody > tr > th.active:hover,
+.table-hover > tbody > tr.active:hover > td,
+.table-hover > tbody > tr:hover > .active,
+.table-hover > tbody > tr.active:hover > th {
+  background-color: #e8e8e8;
+}
+.table > thead > tr > td.success,
+.table > tbody > tr > td.success,
+.table > tfoot > tr > td.success,
+.table > thead > tr > th.success,
+.table > tbody > tr > th.success,
+.table > tfoot > tr > th.success,
+.table > thead > tr.success > td,
+.table > tbody > tr.success > td,
+.table > tfoot > tr.success > td,
+.table > thead > tr.success > th,
+.table > tbody > tr.success > th,
+.table > tfoot > tr.success > th {
+  background-color: #dff0d8;
+}
+.table-hover > tbody > tr > td.success:hover,
+.table-hover > tbody > tr > th.success:hover,
+.table-hover > tbody > tr.success:hover > td,
+.table-hover > tbody > tr:hover > .success,
+.table-hover > tbody > tr.success:hover > th {
+  background-color: #d0e9c6;
+}
+.table > thead > tr > td.info,
+.table > tbody > tr > td.info,
+.table > tfoot > tr > td.info,
+.table > thead > tr > th.info,
+.table > tbody > tr > th.info,
+.table > tfoot > tr > th.info,
+.table > thead > tr.info > td,
+.table > tbody > tr.info > td,
+.table > tfoot > tr.info > td,
+.table > thead > tr.info > th,
+.table > tbody > tr.info > th,
+.table > tfoot > tr.info > th {
+  background-color: #d9edf7;
+}
+.table-hover > tbody > tr > td.info:hover,
+.table-hover > tbody > tr > th.info:hover,
+.table-hover > tbody > tr.info:hover > td,
+.table-hover > tbody > tr:hover > .info,
+.table-hover > tbody > tr.info:hover > th {
+  background-color: #c4e3f3;
+}
+.table > thead > tr > td.warning,
+.table > tbody > tr > td.warning,
+.table > tfoot > tr > td.warning,
+.table > thead > tr > th.warning,
+.table > tbody > tr > th.warning,
+.table > tfoot > tr > th.warning,
+.table > thead > tr.warning > td,
+.table > tbody > tr.warning > td,
+.table > tfoot > tr.warning > td,
+.table > thead > tr.warning > th,
+.table > tbody > tr.warning > th,
+.table > tfoot > tr.warning > th {
+  background-color: #fcf8e3;
+}
+.table-hover > tbody > tr > td.warning:hover,
+.table-hover > tbody > tr > th.warning:hover,
+.table-hover > tbody > tr.warning:hover > td,
+.table-hover > tbody > tr:hover > .warning,
+.table-hover > tbody > tr.warning:hover > th {
+  background-color: #faf2cc;
+}
+.table > thead > tr > td.danger,
+.table > tbody > tr > td.danger,
+.table > tfoot > tr > td.danger,
+.table > thead > tr > th.danger,
+.table > tbody > tr > th.danger,
+.table > tfoot > tr > th.danger,
+.table > thead > tr.danger > td,
+.table > tbody > tr.danger > td,
+.table > tfoot > tr.danger > td,
+.table > thead > tr.danger > th,
+.table > tbody > tr.danger > th,
+.table > tfoot > tr.danger > th {
+  background-color: #f2dede;
+}
+.table-hover > tbody > tr > td.danger:hover,
+.table-hover > tbody > tr > th.danger:hover,
+.table-hover > tbody > tr.danger:hover > td,
+.table-hover > tbody > tr:hover > .danger,
+.table-hover > tbody > tr.danger:hover > th {
+  background-color: #ebcccc;
+}
+.table-responsive {
+  min-height: .01%;
+  overflow-x: auto;
+}
+@media screen and (max-width: 767px) {
+  .table-responsive {
+    width: 100%;
+    margin-bottom: 15px;
+    overflow-y: hidden;
+    -ms-overflow-style: -ms-autohiding-scrollbar;
+    border: 1px solid #ddd;
+  }
+  .table-responsive > .table {
+    margin-bottom: 0;
+  }
+  .table-responsive > .table > thead > tr > th,
+  .table-responsive > .table > tbody > tr > th,
+  .table-responsive > .table > tfoot > tr > th,
+  .table-responsive > .table > thead > tr > td,
+  .table-responsive > .table > tbody > tr > td,
+  .table-responsive > .table > tfoot > tr > td {
+    white-space: nowrap;
+  }
+  .table-responsive > .table-bordered {
+    border: 0;
+  }
+  .table-responsive > .table-bordered > thead > tr > th:first-child,
+  .table-responsive > .table-bordered > tbody > tr > th:first-child,
+  .table-responsive > .table-bordered > tfoot > tr > th:first-child,
+  .table-responsive > .table-bordered > thead > tr > td:first-child,
+  .table-responsive > .table-bordered > tbody > tr > td:first-child,
+  .table-responsive > .table-bordered > tfoot > tr > td:first-child {
+    border-left: 0;
+  }
+  .table-responsive > .table-bordered > thead > tr > th:last-child,
+  .table-responsive > .table-bordered > tbody > tr > th:last-child,
+  .table-responsive > .table-bordered > tfoot > tr > th:last-child,
+  .table-responsive > .table-bordered > thead > tr > td:last-child,
+  .table-responsive > .table-bordered > tbody > tr > td:last-child,
+  .table-responsive > .table-bordered > tfoot > tr > td:last-child {
+    border-right: 0;
+  }
+  .table-responsive > .table-bordered > tbody > tr:last-child > th,
+  .table-responsive > .table-bordered > tfoot > tr:last-child > th,
+  .table-responsive > .table-bordered > tbody > tr:last-child > td,
+  .table-responsive > .table-bordered > tfoot > tr:last-child > td {
+    border-bottom: 0;
+  }
+}
+fieldset {
+  min-width: 0;
+  padding: 0;
+  margin: 0;
+  border: 0;
+}
+legend {
+  display: block;
+  width: 100%;
+  padding: 0;
+  margin-bottom: 20px;
+  font-size: 21px;
+  line-height: inherit;
+  color: #333;
+  border: 0;
+  border-bottom: 1px solid #e5e5e5;
+}
+label {
+  display: inline-block;
+  max-width: 100%;
+  margin-bottom: 5px;
+  font-weight: bold;
+}
+input[type="search"] {
+  -webkit-box-sizing: border-box;
+     -moz-box-sizing: border-box;
+          box-sizing: border-box;
+}
+input[type="radio"],
+input[type="checkbox"] {
+  margin: 4px 0 0;
+  margin-top: 1px \9;
+  line-height: normal;
+}
+input[type="file"] {
+  display: block;
+}
+input[type="range"] {
+  display: block;
+  width: 100%;
+}
+select[multiple],
+select[size] {
+  height: auto;
+}
+input[type="file"]:focus,
+input[type="radio"]:focus,
+input[type="checkbox"]:focus {
+  outline: 5px auto -webkit-focus-ring-color;
+  outline-offset: -2px;
+}
+output {
+  display: block;
+  padding-top: 7px;
+  font-size: 14px;
+  line-height: 1.42857143;
+  color: #555;
+}
+.form-control {
+  display: block;
+  width: 100%;
+  height: 34px;
+  padding: 6px 12px;
+  font-size: 14px;
+  line-height: 1.42857143;
+  color: #555;
+  background-color: #fff;
+  background-image: none;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+  -webkit-transition: border-color ease-in-out .15s, -webkit-box-shadow ease-in-out .15s;
+       -o-transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s;
+          transition: border-color ease-in-out .15s, box-shadow ease-in-out .15s;
+}
+.form-control:focus {
+  border-color: #66afe9;
+  outline: 0;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
+          box-shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(102, 175, 233, .6);
+}
+.form-control::-moz-placeholder {
+  color: #999;
+  opacity: 1;
+}
+.form-control:-ms-input-placeholder {
+  color: #999;
+}
+.form-control::-webkit-input-placeholder {
+  color: #999;
+}
+.form-control::-ms-expand {
+  background-color: transparent;
+  border: 0;
+}
+.form-control[disabled],
+.form-control[readonly],
+fieldset[disabled] .form-control {
+  background-color: #eee;
+  opacity: 1;
+}
+.form-control[disabled],
+fieldset[disabled] .form-control {
+  cursor: not-allowed;
+}
+textarea.form-control {
+  height: auto;
+}
+input[type="search"] {
+  -webkit-appearance: none;
+}
+@media screen and (-webkit-min-device-pixel-ratio: 0) {
+  input[type="date"].form-control,
+  input[type="time"].form-control,
+  input[type="datetime-local"].form-control,
+  input[type="month"].form-control {
+    line-height: 34px;
+  }
+  input[type="date"].input-sm,
+  input[type="time"].input-sm,
+  input[type="datetime-local"].input-sm,
+  input[type="month"].input-sm,
+  .input-group-sm input[type="date"],
+  .input-group-sm input[type="time"],
+  .input-group-sm input[type="datetime-local"],
+  .input-group-sm input[type="month"] {
+    line-height: 30px;
+  }
+  input[type="date"].input-lg,
+  input[type="time"].input-lg,
+  input[type="datetime-local"].input-lg,
+  input[type="month"].input-lg,
+  .input-group-lg input[type="date"],
+  .input-group-lg input[type="time"],
+  .input-group-lg input[type="datetime-local"],
+  .input-group-lg input[type="month"] {
+    line-height: 46px;
+  }
+}
+.form-group {
+  margin-bottom: 15px;
+}
+.radio,
+.checkbox {
+  position: relative;
+  display: block;
+  margin-top: 10px;
+  margin-bottom: 10px;
+}
+.radio label,
+.checkbox label {
+  min-height: 20px;
+  padding-left: 20px;
+  margin-bottom: 0;
+  font-weight: normal;
+  cursor: pointer;
+}
+.radio input[type="radio"],
+.radio-inline input[type="radio"],
+.checkbox input[type="checkbox"],
+.checkbox-inline input[type="checkbox"] {
+  position: absolute;
+  margin-top: 4px \9;
+  margin-left: -20px;
+}
+.radio + .radio,
+.checkbox + .checkbox {
+  margin-top: -5px;
+}
+.radio-inline,
+.checkbox-inline {
+  position: relative;
+  display: inline-block;
+  padding-left: 20px;
+  margin-bottom: 0;
+  font-weight: normal;
+  vertical-align: middle;
+  cursor: pointer;
+}
+.radio-inline + .radio-inline,
+.checkbox-inline + .checkbox-inline {
+  margin-top: 0;
+  margin-left: 10px;
+}
+input[type="radio"][disabled],
+input[type="checkbox"][disabled],
+input[type="radio"].disabled,
+input[type="checkbox"].disabled,
+fieldset[disabled] input[type="radio"],
+fieldset[disabled] input[type="checkbox"] {
+  cursor: not-allowed;
+}
+.radio-inline.disabled,
+.checkbox-inline.disabled,
+fieldset[disabled] .radio-inline,
+fieldset[disabled] .checkbox-inline {
+  cursor: not-allowed;
+}
+.radio.disabled label,
+.checkbox.disabled label,
+fieldset[disabled] .radio label,
+fieldset[disabled] .checkbox label {
+  cursor: not-allowed;
+}
+.form-control-static {
+  min-height: 34px;
+  padding-top: 7px;
+  padding-bottom: 7px;
+  margin-bottom: 0;
+}
+.form-control-static.input-lg,
+.form-control-static.input-sm {
+  padding-right: 0;
+  padding-left: 0;
+}
+.input-sm {
+  height: 30px;
+  padding: 5px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+  border-radius: 3px;
+}
+select.input-sm {
+  height: 30px;
+  line-height: 30px;
+}
+textarea.input-sm,
+select[multiple].input-sm {
+  height: auto;
+}
+.form-group-sm .form-control {
+  height: 30px;
+  padding: 5px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+  border-radius: 3px;
+}
+.form-group-sm select.form-control {
+  height: 30px;
+  line-height: 30px;
+}
+.form-group-sm textarea.form-control,
+.form-group-sm select[multiple].form-control {
+  height: auto;
+}
+.form-group-sm .form-control-static {
+  height: 30px;
+  min-height: 32px;
+  padding: 6px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+}
+.input-lg {
+  height: 46px;
+  padding: 10px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+  border-radius: 6px;
+}
+select.input-lg {
+  height: 46px;
+  line-height: 46px;
+}
+textarea.input-lg,
+select[multiple].input-lg {
+  height: auto;
+}
+.form-group-lg .form-control {
+  height: 46px;
+  padding: 10px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+  border-radius: 6px;
+}
+.form-group-lg select.form-control {
+  height: 46px;
+  line-height: 46px;
+}
+.form-group-lg textarea.form-control,
+.form-group-lg select[multiple].form-control {
+  height: auto;
+}
+.form-group-lg .form-control-static {
+  height: 46px;
+  min-height: 38px;
+  padding: 11px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+}
+.has-feedback {
+  position: relative;
+}
+.has-feedback .form-control {
+  padding-right: 42.5px;
+}
+.form-control-feedback {
+  position: absolute;
+  top: 0;
+  right: 0;
+  z-index: 2;
+  display: block;
+  width: 34px;
+  height: 34px;
+  line-height: 34px;
+  text-align: center;
+  pointer-events: none;
+}
+.input-lg + .form-control-feedback,
+.input-group-lg + .form-control-feedback,
+.form-group-lg .form-control + .form-control-feedback {
+  width: 46px;
+  height: 46px;
+  line-height: 46px;
+}
+.input-sm + .form-control-feedback,
+.input-group-sm + .form-control-feedback,
+.form-group-sm .form-control + .form-control-feedback {
+  width: 30px;
+  height: 30px;
+  line-height: 30px;
+}
+.has-success .help-block,
+.has-success .control-label,
+.has-success .radio,
+.has-success .checkbox,
+.has-success .radio-inline,
+.has-success .checkbox-inline,
+.has-success.radio label,
+.has-success.checkbox label,
+.has-success.radio-inline label,
+.has-success.checkbox-inline label {
+  color: #3c763d;
+}
+.has-success .form-control {
+  border-color: #3c763d;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+}
+.has-success .form-control:focus {
+  border-color: #2b542c;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #67b168;
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #67b168;
+}
+.has-success .input-group-addon {
+  color: #3c763d;
+  background-color: #dff0d8;
+  border-color: #3c763d;
+}
+.has-success .form-control-feedback {
+  color: #3c763d;
+}
+.has-warning .help-block,
+.has-warning .control-label,
+.has-warning .radio,
+.has-warning .checkbox,
+.has-warning .radio-inline,
+.has-warning .checkbox-inline,
+.has-warning.radio label,
+.has-warning.checkbox label,
+.has-warning.radio-inline label,
+.has-warning.checkbox-inline label {
+  color: #8a6d3b;
+}
+.has-warning .form-control {
+  border-color: #8a6d3b;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+}
+.has-warning .form-control:focus {
+  border-color: #66512c;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #c0a16b;
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #c0a16b;
+}
+.has-warning .input-group-addon {
+  color: #8a6d3b;
+  background-color: #fcf8e3;
+  border-color: #8a6d3b;
+}
+.has-warning .form-control-feedback {
+  color: #8a6d3b;
+}
+.has-error .help-block,
+.has-error .control-label,
+.has-error .radio,
+.has-error .checkbox,
+.has-error .radio-inline,
+.has-error .checkbox-inline,
+.has-error.radio label,
+.has-error.checkbox label,
+.has-error.radio-inline label,
+.has-error.checkbox-inline label {
+  color: #a94442;
+}
+.has-error .form-control {
+  border-color: #a94442;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075);
+}
+.has-error .form-control:focus {
+  border-color: #843534;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #ce8483;
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .075), 0 0 6px #ce8483;
+}
+.has-error .input-group-addon {
+  color: #a94442;
+  background-color: #f2dede;
+  border-color: #a94442;
+}
+.has-error .form-control-feedback {
+  color: #a94442;
+}
+.has-feedback label ~ .form-control-feedback {
+  top: 25px;
+}
+.has-feedback label.sr-only ~ .form-control-feedback {
+  top: 0;
+}
+.help-block {
+  display: block;
+  margin-top: 5px;
+  margin-bottom: 10px;
+  color: #737373;
+}
+@media (min-width: 768px) {
+  .form-inline .form-group {
+    display: inline-block;
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .form-inline .form-control {
+    display: inline-block;
+    width: auto;
+    vertical-align: middle;
+  }
+  .form-inline .form-control-static {
+    display: inline-block;
+  }
+  .form-inline .input-group {
+    display: inline-table;
+    vertical-align: middle;
+  }
+  .form-inline .input-group .input-group-addon,
+  .form-inline .input-group .input-group-btn,
+  .form-inline .input-group .form-control {
+    width: auto;
+  }
+  .form-inline .input-group > .form-control {
+    width: 100%;
+  }
+  .form-inline .control-label {
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .form-inline .radio,
+  .form-inline .checkbox {
+    display: inline-block;
+    margin-top: 0;
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .form-inline .radio label,
+  .form-inline .checkbox label {
+    padding-left: 0;
+  }
+  .form-inline .radio input[type="radio"],
+  .form-inline .checkbox input[type="checkbox"] {
+    position: relative;
+    margin-left: 0;
+  }
+  .form-inline .has-feedback .form-control-feedback {
+    top: 0;
+  }
+}
+.form-horizontal .radio,
+.form-horizontal .checkbox,
+.form-horizontal .radio-inline,
+.form-horizontal .checkbox-inline {
+  padding-top: 7px;
+  margin-top: 0;
+  margin-bottom: 0;
+}
+.form-horizontal .radio,
+.form-horizontal .checkbox {
+  min-height: 27px;
+}
+.form-horizontal .form-group {
+  margin-right: -15px;
+  margin-left: -15px;
+}
+@media (min-width: 768px) {
+  .form-horizontal .control-label {
+    padding-top: 7px;
+    margin-bottom: 0;
+    text-align: right;
+  }
+}
+.form-horizontal .has-feedback .form-control-feedback {
+  right: 15px;
+}
+@media (min-width: 768px) {
+  .form-horizontal .form-group-lg .control-label {
+    padding-top: 11px;
+    font-size: 18px;
+  }
+}
+@media (min-width: 768px) {
+  .form-horizontal .form-group-sm .control-label {
+    padding-top: 6px;
+    font-size: 12px;
+  }
+}
+.btn {
+  display: inline-block;
+  padding: 6px 12px;
+  margin-bottom: 0;
+  font-size: 14px;
+  font-weight: normal;
+  line-height: 1.42857143;
+  text-align: center;
+  white-space: nowrap;
+  vertical-align: middle;
+  -ms-touch-action: manipulation;
+      touch-action: manipulation;
+  cursor: pointer;
+  -webkit-user-select: none;
+     -moz-user-select: none;
+      -ms-user-select: none;
+          user-select: none;
+  background-image: none;
+  border: 1px solid transparent;
+  border-radius: 4px;
+}
+.btn:focus,
+.btn:active:focus,
+.btn.active:focus,
+.btn.focus,
+.btn:active.focus,
+.btn.active.focus {
+  outline: 5px auto -webkit-focus-ring-color;
+  outline-offset: -2px;
+}
+.btn:hover,
+.btn:focus,
+.btn.focus {
+  color: #333;
+  text-decoration: none;
+}
+.btn:active,
+.btn.active {
+  background-image: none;
+  outline: 0;
+  -webkit-box-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
+          box-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
+}
+.btn.disabled,
+.btn[disabled],
+fieldset[disabled] .btn {
+  cursor: not-allowed;
+  filter: alpha(opacity=65);
+  -webkit-box-shadow: none;
+          box-shadow: none;
+  opacity: .65;
+}
+a.btn.disabled,
+fieldset[disabled] a.btn {
+  pointer-events: none;
+}
+.btn-default {
+  color: #333;
+  background-color: #fff;
+  border-color: #ccc;
+}
+.btn-default:focus,
+.btn-default.focus {
+  color: #333;
+  background-color: #e6e6e6;
+  border-color: #8c8c8c;
+}
+.btn-default:hover {
+  color: #333;
+  background-color: #e6e6e6;
+  border-color: #adadad;
+}
+.btn-default:active,
+.btn-default.active,
+.open > .dropdown-toggle.btn-default {
+  color: #333;
+  background-color: #e6e6e6;
+  border-color: #adadad;
+}
+.btn-default:active:hover,
+.btn-default.active:hover,
+.open > .dropdown-toggle.btn-default:hover,
+.btn-default:active:focus,
+.btn-default.active:focus,
+.open > .dropdown-toggle.btn-default:focus,
+.btn-default:active.focus,
+.btn-default.active.focus,
+.open > .dropdown-toggle.btn-default.focus {
+  color: #333;
+  background-color: #d4d4d4;
+  border-color: #8c8c8c;
+}
+.btn-default:active,
+.btn-default.active,
+.open > .dropdown-toggle.btn-default {
+  background-image: none;
+}
+.btn-default.disabled:hover,
+.btn-default[disabled]:hover,
+fieldset[disabled] .btn-default:hover,
+.btn-default.disabled:focus,
+.btn-default[disabled]:focus,
+fieldset[disabled] .btn-default:focus,
+.btn-default.disabled.focus,
+.btn-default[disabled].focus,
+fieldset[disabled] .btn-default.focus {
+  background-color: #fff;
+  border-color: #ccc;
+}
+.btn-default .badge {
+  color: #fff;
+  background-color: #333;
+}
+.btn-primary {
+  color: #fff;
+  background-color: #337ab7;
+  border-color: #2e6da4;
+}
+.btn-primary:focus,
+.btn-primary.focus {
+  color: #fff;
+  background-color: #286090;
+  border-color: #122b40;
+}
+.btn-primary:hover {
+  color: #fff;
+  background-color: #286090;
+  border-color: #204d74;
+}
+.btn-primary:active,
+.btn-primary.active,
+.open > .dropdown-toggle.btn-primary {
+  color: #fff;
+  background-color: #286090;
+  border-color: #204d74;
+}
+.btn-primary:active:hover,
+.btn-primary.active:hover,
+.open > .dropdown-toggle.btn-primary:hover,
+.btn-primary:active:focus,
+.btn-primary.active:focus,
+.open > .dropdown-toggle.btn-primary:focus,
+.btn-primary:active.focus,
+.btn-primary.active.focus,
+.open > .dropdown-toggle.btn-primary.focus {
+  color: #fff;
+  background-color: #204d74;
+  border-color: #122b40;
+}
+.btn-primary:active,
+.btn-primary.active,
+.open > .dropdown-toggle.btn-primary {
+  background-image: none;
+}
+.btn-primary.disabled:hover,
+.btn-primary[disabled]:hover,
+fieldset[disabled] .btn-primary:hover,
+.btn-primary.disabled:focus,
+.btn-primary[disabled]:focus,
+fieldset[disabled] .btn-primary:focus,
+.btn-primary.disabled.focus,
+.btn-primary[disabled].focus,
+fieldset[disabled] .btn-primary.focus {
+  background-color: #337ab7;
+  border-color: #2e6da4;
+}
+.btn-primary .badge {
+  color: #337ab7;
+  background-color: #fff;
+}
+.btn-success {
+  color: #fff;
+  background-color: #5cb85c;
+  border-color: #4cae4c;
+}
+.btn-success:focus,
+.btn-success.focus {
+  color: #fff;
+  background-color: #449d44;
+  border-color: #255625;
+}
+.btn-success:hover {
+  color: #fff;
+  background-color: #449d44;
+  border-color: #398439;
+}
+.btn-success:active,
+.btn-success.active,
+.open > .dropdown-toggle.btn-success {
+  color: #fff;
+  background-color: #449d44;
+  border-color: #398439;
+}
+.btn-success:active:hover,
+.btn-success.active:hover,
+.open > .dropdown-toggle.btn-success:hover,
+.btn-success:active:focus,
+.btn-success.active:focus,
+.open > .dropdown-toggle.btn-success:focus,
+.btn-success:active.focus,
+.btn-success.active.focus,
+.open > .dropdown-toggle.btn-success.focus {
+  color: #fff;
+  background-color: #398439;
+  border-color: #255625;
+}
+.btn-success:active,
+.btn-success.active,
+.open > .dropdown-toggle.btn-success {
+  background-image: none;
+}
+.btn-success.disabled:hover,
+.btn-success[disabled]:hover,
+fieldset[disabled] .btn-success:hover,
+.btn-success.disabled:focus,
+.btn-success[disabled]:focus,
+fieldset[disabled] .btn-success:focus,
+.btn-success.disabled.focus,
+.btn-success[disabled].focus,
+fieldset[disabled] .btn-success.focus {
+  background-color: #5cb85c;
+  border-color: #4cae4c;
+}
+.btn-success .badge {
+  color: #5cb85c;
+  background-color: #fff;
+}
+.btn-info {
+  color: #fff;
+  background-color: #5bc0de;
+  border-color: #46b8da;
+}
+.btn-info:focus,
+.btn-info.focus {
+  color: #fff;
+  background-color: #31b0d5;
+  border-color: #1b6d85;
+}
+.btn-info:hover {
+  color: #fff;
+  background-color: #31b0d5;
+  border-color: #269abc;
+}
+.btn-info:active,
+.btn-info.active,
+.open > .dropdown-toggle.btn-info {
+  color: #fff;
+  background-color: #31b0d5;
+  border-color: #269abc;
+}
+.btn-info:active:hover,
+.btn-info.active:hover,
+.open > .dropdown-toggle.btn-info:hover,
+.btn-info:active:focus,
+.btn-info.active:focus,
+.open > .dropdown-toggle.btn-info:focus,
+.btn-info:active.focus,
+.btn-info.active.focus,
+.open > .dropdown-toggle.btn-info.focus {
+  color: #fff;
+  background-color: #269abc;
+  border-color: #1b6d85;
+}
+.btn-info:active,
+.btn-info.active,
+.open > .dropdown-toggle.btn-info {
+  background-image: none;
+}
+.btn-info.disabled:hover,
+.btn-info[disabled]:hover,
+fieldset[disabled] .btn-info:hover,
+.btn-info.disabled:focus,
+.btn-info[disabled]:focus,
+fieldset[disabled] .btn-info:focus,
+.btn-info.disabled.focus,
+.btn-info[disabled].focus,
+fieldset[disabled] .btn-info.focus {
+  background-color: #5bc0de;
+  border-color: #46b8da;
+}
+.btn-info .badge {
+  color: #5bc0de;
+  background-color: #fff;
+}
+.btn-warning {
+  color: #fff;
+  background-color: #f0ad4e;
+  border-color: #eea236;
+}
+.btn-warning:focus,
+.btn-warning.focus {
+  color: #fff;
+  background-color: #ec971f;
+  border-color: #985f0d;
+}
+.btn-warning:hover {
+  color: #fff;
+  background-color: #ec971f;
+  border-color: #d58512;
+}
+.btn-warning:active,
+.btn-warning.active,
+.open > .dropdown-toggle.btn-warning {
+  color: #fff;
+  background-color: #ec971f;
+  border-color: #d58512;
+}
+.btn-warning:active:hover,
+.btn-warning.active:hover,
+.open > .dropdown-toggle.btn-warning:hover,
+.btn-warning:active:focus,
+.btn-warning.active:focus,
+.open > .dropdown-toggle.btn-warning:focus,
+.btn-warning:active.focus,
+.btn-warning.active.focus,
+.open > .dropdown-toggle.btn-warning.focus {
+  color: #fff;
+  background-color: #d58512;
+  border-color: #985f0d;
+}
+.btn-warning:active,
+.btn-warning.active,
+.open > .dropdown-toggle.btn-warning {
+  background-image: none;
+}
+.btn-warning.disabled:hover,
+.btn-warning[disabled]:hover,
+fieldset[disabled] .btn-warning:hover,
+.btn-warning.disabled:focus,
+.btn-warning[disabled]:focus,
+fieldset[disabled] .btn-warning:focus,
+.btn-warning.disabled.focus,
+.btn-warning[disabled].focus,
+fieldset[disabled] .btn-warning.focus {
+  background-color: #f0ad4e;
+  border-color: #eea236;
+}
+.btn-warning .badge {
+  color: #f0ad4e;
+  background-color: #fff;
+}
+.btn-danger {
+  color: #fff;
+  background-color: #d9534f;
+  border-color: #d43f3a;
+}
+.btn-danger:focus,
+.btn-danger.focus {
+  color: #fff;
+  background-color: #c9302c;
+  border-color: #761c19;
+}
+.btn-danger:hover {
+  color: #fff;
+  background-color: #c9302c;
+  border-color: #ac2925;
+}
+.btn-danger:active,
+.btn-danger.active,
+.open > .dropdown-toggle.btn-danger {
+  color: #fff;
+  background-color: #c9302c;
+  border-color: #ac2925;
+}
+.btn-danger:active:hover,
+.btn-danger.active:hover,
+.open > .dropdown-toggle.btn-danger:hover,
+.btn-danger:active:focus,
+.btn-danger.active:focus,
+.open > .dropdown-toggle.btn-danger:focus,
+.btn-danger:active.focus,
+.btn-danger.active.focus,
+.open > .dropdown-toggle.btn-danger.focus {
+  color: #fff;
+  background-color: #ac2925;
+  border-color: #761c19;
+}
+.btn-danger:active,
+.btn-danger.active,
+.open > .dropdown-toggle.btn-danger {
+  background-image: none;
+}
+.btn-danger.disabled:hover,
+.btn-danger[disabled]:hover,
+fieldset[disabled] .btn-danger:hover,
+.btn-danger.disabled:focus,
+.btn-danger[disabled]:focus,
+fieldset[disabled] .btn-danger:focus,
+.btn-danger.disabled.focus,
+.btn-danger[disabled].focus,
+fieldset[disabled] .btn-danger.focus {
+  background-color: #d9534f;
+  border-color: #d43f3a;
+}
+.btn-danger .badge {
+  color: #d9534f;
+  background-color: #fff;
+}
+.btn-link {
+  font-weight: normal;
+  color: #337ab7;
+  border-radius: 0;
+}
+.btn-link,
+.btn-link:active,
+.btn-link.active,
+.btn-link[disabled],
+fieldset[disabled] .btn-link {
+  background-color: transparent;
+  -webkit-box-shadow: none;
+          box-shadow: none;
+}
+.btn-link,
+.btn-link:hover,
+.btn-link:focus,
+.btn-link:active {
+  border-color: transparent;
+}
+.btn-link:hover,
+.btn-link:focus {
+  color: #23527c;
+  text-decoration: underline;
+  background-color: transparent;
+}
+.btn-link[disabled]:hover,
+fieldset[disabled] .btn-link:hover,
+.btn-link[disabled]:focus,
+fieldset[disabled] .btn-link:focus {
+  color: #777;
+  text-decoration: none;
+}
+.btn-lg,
+.btn-group-lg > .btn {
+  padding: 10px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+  border-radius: 6px;
+}
+.btn-sm,
+.btn-group-sm > .btn {
+  padding: 5px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+  border-radius: 3px;
+}
+.btn-xs,
+.btn-group-xs > .btn {
+  padding: 1px 5px;
+  font-size: 12px;
+  line-height: 1.5;
+  border-radius: 3px;
+}
+.btn-block {
+  display: block;
+  width: 100%;
+}
+.btn-block + .btn-block {
+  margin-top: 5px;
+}
+input[type="submit"].btn-block,
+input[type="reset"].btn-block,
+input[type="button"].btn-block {
+  width: 100%;
+}
+.fade {
+  opacity: 0;
+  -webkit-transition: opacity .15s linear;
+       -o-transition: opacity .15s linear;
+          transition: opacity .15s linear;
+}
+.fade.in {
+  opacity: 1;
+}
+.collapse {
+  display: none;
+}
+.collapse.in {
+  display: block;
+}
+tr.collapse.in {
+  display: table-row;
+}
+tbody.collapse.in {
+  display: table-row-group;
+}
+.collapsing {
+  position: relative;
+  height: 0;
+  overflow: hidden;
+  -webkit-transition-timing-function: ease;
+       -o-transition-timing-function: ease;
+          transition-timing-function: ease;
+  -webkit-transition-duration: .35s;
+       -o-transition-duration: .35s;
+          transition-duration: .35s;
+  -webkit-transition-property: height, visibility;
+       -o-transition-property: height, visibility;
+          transition-property: height, visibility;
+}
+.caret {
+  display: inline-block;
+  width: 0;
+  height: 0;
+  margin-left: 2px;
+  vertical-align: middle;
+  border-top: 4px dashed;
+  border-top: 4px solid \9;
+  border-right: 4px solid transparent;
+  border-left: 4px solid transparent;
+}
+.dropup,
+.dropdown {
+  position: relative;
+}
+.dropdown-toggle:focus {
+  outline: 0;
+}
+.dropdown-menu {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  z-index: 1000;
+  display: none;
+  float: left;
+  min-width: 160px;
+  padding: 5px 0;
+  margin: 2px 0 0;
+  font-size: 14px;
+  text-align: left;
+  list-style: none;
+  background-color: #fff;
+  -webkit-background-clip: padding-box;
+          background-clip: padding-box;
+  border: 1px solid #ccc;
+  border: 1px solid rgba(0, 0, 0, .15);
+  border-radius: 4px;
+  -webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, .175);
+          box-shadow: 0 6px 12px rgba(0, 0, 0, .175);
+}
+.dropdown-menu.pull-right {
+  right: 0;
+  left: auto;
+}
+.dropdown-menu .divider {
+  height: 1px;
+  margin: 9px 0;
+  overflow: hidden;
+  background-color: #e5e5e5;
+}
+.dropdown-menu > li > a {
+  display: block;
+  padding: 3px 20px;
+  clear: both;
+  font-weight: normal;
+  line-height: 1.42857143;
+  color: #333;
+  white-space: nowrap;
+}
+.dropdown-menu > li > a:hover,
+.dropdown-menu > li > a:focus {
+  color: #262626;
+  text-decoration: none;
+  background-color: #f5f5f5;
+}
+.dropdown-menu > .active > a,
+.dropdown-menu > .active > a:hover,
+.dropdown-menu > .active > a:focus {
+  color: #fff;
+  text-decoration: none;
+  background-color: #337ab7;
+  outline: 0;
+}
+.dropdown-menu > .disabled > a,
+.dropdown-menu > .disabled > a:hover,
+.dropdown-menu > .disabled > a:focus {
+  color: #777;
+}
+.dropdown-menu > .disabled > a:hover,
+.dropdown-menu > .disabled > a:focus {
+  text-decoration: none;
+  cursor: not-allowed;
+  background-color: transparent;
+  background-image: none;
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled = false);
+}
+.open > .dropdown-menu {
+  display: block;
+}
+.open > a {
+  outline: 0;
+}
+.dropdown-menu-right {
+  right: 0;
+  left: auto;
+}
+.dropdown-menu-left {
+  right: auto;
+  left: 0;
+}
+.dropdown-header {
+  display: block;
+  padding: 3px 20px;
+  font-size: 12px;
+  line-height: 1.42857143;
+  color: #777;
+  white-space: nowrap;
+}
+.dropdown-backdrop {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 990;
+}
+.pull-right > .dropdown-menu {
+  right: 0;
+  left: auto;
+}
+.dropup .caret,
+.navbar-fixed-bottom .dropdown .caret {
+  content: "";
+  border-top: 0;
+  border-bottom: 4px dashed;
+  border-bottom: 4px solid \9;
+}
+.dropup .dropdown-menu,
+.navbar-fixed-bottom .dropdown .dropdown-menu {
+  top: auto;
+  bottom: 100%;
+  margin-bottom: 2px;
+}
+@media (min-width: 768px) {
+  .navbar-right .dropdown-menu {
+    right: 0;
+    left: auto;
+  }
+  .navbar-right .dropdown-menu-left {
+    right: auto;
+    left: 0;
+  }
+}
+.btn-group,
+.btn-group-vertical {
+  position: relative;
+  display: inline-block;
+  vertical-align: middle;
+}
+.btn-group > .btn,
+.btn-group-vertical > .btn {
+  position: relative;
+  float: left;
+}
+.btn-group > .btn:hover,
+.btn-group-vertical > .btn:hover,
+.btn-group > .btn:focus,
+.btn-group-vertical > .btn:focus,
+.btn-group > .btn:active,
+.btn-group-vertical > .btn:active,
+.btn-group > .btn.active,
+.btn-group-vertical > .btn.active {
+  z-index: 2;
+}
+.btn-group .btn + .btn,
+.btn-group .btn + .btn-group,
+.btn-group .btn-group + .btn,
+.btn-group .btn-group + .btn-group {
+  margin-left: -1px;
+}
+.btn-toolbar {
+  margin-left: -5px;
+}
+.btn-toolbar .btn,
+.btn-toolbar .btn-group,
+.btn-toolbar .input-group {
+  float: left;
+}
+.btn-toolbar > .btn,
+.btn-toolbar > .btn-group,
+.btn-toolbar > .input-group {
+  margin-left: 5px;
+}
+.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
+  border-radius: 0;
+}
+.btn-group > .btn:first-child {
+  margin-left: 0;
+}
+.btn-group > .btn:first-child:not(:last-child):not(.dropdown-toggle) {
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 0;
+}
+.btn-group > .btn:last-child:not(:first-child),
+.btn-group > .dropdown-toggle:not(:first-child) {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.btn-group > .btn-group {
+  float: left;
+}
+.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
+  border-radius: 0;
+}
+.btn-group > .btn-group:first-child:not(:last-child) > .btn:last-child,
+.btn-group > .btn-group:first-child:not(:last-child) > .dropdown-toggle {
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 0;
+}
+.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.btn-group .dropdown-toggle:active,
+.btn-group.open .dropdown-toggle {
+  outline: 0;
+}
+.btn-group > .btn + .dropdown-toggle {
+  padding-right: 8px;
+  padding-left: 8px;
+}
+.btn-group > .btn-lg + .dropdown-toggle {
+  padding-right: 12px;
+  padding-left: 12px;
+}
+.btn-group.open .dropdown-toggle {
+  -webkit-box-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
+          box-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
+}
+.btn-group.open .dropdown-toggle.btn-link {
+  -webkit-box-shadow: none;
+          box-shadow: none;
+}
+.btn .caret {
+  margin-left: 0;
+}
+.btn-lg .caret {
+  border-width: 5px 5px 0;
+  border-bottom-width: 0;
+}
+.dropup .btn-lg .caret {
+  border-width: 0 5px 5px;
+}
+.btn-group-vertical > .btn,
+.btn-group-vertical > .btn-group,
+.btn-group-vertical > .btn-group > .btn {
+  display: block;
+  float: none;
+  width: 100%;
+  max-width: 100%;
+}
+.btn-group-vertical > .btn-group > .btn {
+  float: none;
+}
+.btn-group-vertical > .btn + .btn,
+.btn-group-vertical > .btn + .btn-group,
+.btn-group-vertical > .btn-group + .btn,
+.btn-group-vertical > .btn-group + .btn-group {
+  margin-top: -1px;
+  margin-left: 0;
+}
+.btn-group-vertical > .btn:not(:first-child):not(:last-child) {
+  border-radius: 0;
+}
+.btn-group-vertical > .btn:first-child:not(:last-child) {
+  border-top-left-radius: 4px;
+  border-top-right-radius: 4px;
+  border-bottom-right-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.btn-group-vertical > .btn:last-child:not(:first-child) {
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 4px;
+  border-bottom-left-radius: 4px;
+}
+.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
+  border-radius: 0;
+}
+.btn-group-vertical > .btn-group:first-child:not(:last-child) > .btn:last-child,
+.btn-group-vertical > .btn-group:first-child:not(:last-child) > .dropdown-toggle {
+  border-bottom-right-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+}
+.btn-group-justified {
+  display: table;
+  width: 100%;
+  table-layout: fixed;
+  border-collapse: separate;
+}
+.btn-group-justified > .btn,
+.btn-group-justified > .btn-group {
+  display: table-cell;
+  float: none;
+  width: 1%;
+}
+.btn-group-justified > .btn-group .btn {
+  width: 100%;
+}
+.btn-group-justified > .btn-group .dropdown-menu {
+  left: auto;
+}
+[data-toggle="buttons"] > .btn input[type="radio"],
+[data-toggle="buttons"] > .btn-group > .btn input[type="radio"],
+[data-toggle="buttons"] > .btn input[type="checkbox"],
+[data-toggle="buttons"] > .btn-group > .btn input[type="checkbox"] {
+  position: absolute;
+  clip: rect(0, 0, 0, 0);
+  pointer-events: none;
+}
+.input-group {
+  position: relative;
+  display: table;
+  border-collapse: separate;
+}
+.input-group[class*="col-"] {
+  float: none;
+  padding-right: 0;
+  padding-left: 0;
+}
+.input-group .form-control {
+  position: relative;
+  z-index: 2;
+  float: left;
+  width: 100%;
+  margin-bottom: 0;
+}
+.input-group .form-control:focus {
+  z-index: 3;
+}
+.input-group-lg > .form-control,
+.input-group-lg > .input-group-addon,
+.input-group-lg > .input-group-btn > .btn {
+  height: 46px;
+  padding: 10px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+  border-radius: 6px;
+}
+select.input-group-lg > .form-control,
+select.input-group-lg > .input-group-addon,
+select.input-group-lg > .input-group-btn > .btn {
+  height: 46px;
+  line-height: 46px;
+}
+textarea.input-group-lg > .form-control,
+textarea.input-group-lg > .input-group-addon,
+textarea.input-group-lg > .input-group-btn > .btn,
+select[multiple].input-group-lg > .form-control,
+select[multiple].input-group-lg > .input-group-addon,
+select[multiple].input-group-lg > .input-group-btn > .btn {
+  height: auto;
+}
+.input-group-sm > .form-control,
+.input-group-sm > .input-group-addon,
+.input-group-sm > .input-group-btn > .btn {
+  height: 30px;
+  padding: 5px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+  border-radius: 3px;
+}
+select.input-group-sm > .form-control,
+select.input-group-sm > .input-group-addon,
+select.input-group-sm > .input-group-btn > .btn {
+  height: 30px;
+  line-height: 30px;
+}
+textarea.input-group-sm > .form-control,
+textarea.input-group-sm > .input-group-addon,
+textarea.input-group-sm > .input-group-btn > .btn,
+select[multiple].input-group-sm > .form-control,
+select[multiple].input-group-sm > .input-group-addon,
+select[multiple].input-group-sm > .input-group-btn > .btn {
+  height: auto;
+}
+.input-group-addon,
+.input-group-btn,
+.input-group .form-control {
+  display: table-cell;
+}
+.input-group-addon:not(:first-child):not(:last-child),
+.input-group-btn:not(:first-child):not(:last-child),
+.input-group .form-control:not(:first-child):not(:last-child) {
+  border-radius: 0;
+}
+.input-group-addon,
+.input-group-btn {
+  width: 1%;
+  white-space: nowrap;
+  vertical-align: middle;
+}
+.input-group-addon {
+  padding: 6px 12px;
+  font-size: 14px;
+  font-weight: normal;
+  line-height: 1;
+  color: #555;
+  text-align: center;
+  background-color: #eee;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+}
+.input-group-addon.input-sm {
+  padding: 5px 10px;
+  font-size: 12px;
+  border-radius: 3px;
+}
+.input-group-addon.input-lg {
+  padding: 10px 16px;
+  font-size: 18px;
+  border-radius: 6px;
+}
+.input-group-addon input[type="radio"],
+.input-group-addon input[type="checkbox"] {
+  margin-top: 0;
+}
+.input-group .form-control:first-child,
+.input-group-addon:first-child,
+.input-group-btn:first-child > .btn,
+.input-group-btn:first-child > .btn-group > .btn,
+.input-group-btn:first-child > .dropdown-toggle,
+.input-group-btn:last-child > .btn:not(:last-child):not(.dropdown-toggle),
+.input-group-btn:last-child > .btn-group:not(:last-child) > .btn {
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 0;
+}
+.input-group-addon:first-child {
+  border-right: 0;
+}
+.input-group .form-control:last-child,
+.input-group-addon:last-child,
+.input-group-btn:last-child > .btn,
+.input-group-btn:last-child > .btn-group > .btn,
+.input-group-btn:last-child > .dropdown-toggle,
+.input-group-btn:first-child > .btn:not(:first-child),
+.input-group-btn:first-child > .btn-group:not(:first-child) > .btn {
+  border-top-left-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.input-group-addon:last-child {
+  border-left: 0;
+}
+.input-group-btn {
+  position: relative;
+  font-size: 0;
+  white-space: nowrap;
+}
+.input-group-btn > .btn {
+  position: relative;
+}
+.input-group-btn > .btn + .btn {
+  margin-left: -1px;
+}
+.input-group-btn > .btn:hover,
+.input-group-btn > .btn:focus,
+.input-group-btn > .btn:active {
+  z-index: 2;
+}
+.input-group-btn:first-child > .btn,
+.input-group-btn:first-child > .btn-group {
+  margin-right: -1px;
+}
+.input-group-btn:last-child > .btn,
+.input-group-btn:last-child > .btn-group {
+  z-index: 2;
+  margin-left: -1px;
+}
+.nav {
+  padding-left: 0;
+  margin-bottom: 0;
+  list-style: none;
+}
+.nav > li {
+  position: relative;
+  display: block;
+}
+.nav > li > a {
+  position: relative;
+  display: block;
+  padding: 10px 15px;
+}
+.nav > li > a:hover,
+.nav > li > a:focus {
+  text-decoration: none;
+  background-color: #eee;
+}
+.nav > li.disabled > a {
+  color: #777;
+}
+.nav > li.disabled > a:hover,
+.nav > li.disabled > a:focus {
+  color: #777;
+  text-decoration: none;
+  cursor: not-allowed;
+  background-color: transparent;
+}
+.nav .open > a,
+.nav .open > a:hover,
+.nav .open > a:focus {
+  background-color: #eee;
+  border-color: #337ab7;
+}
+.nav .nav-divider {
+  height: 1px;
+  margin: 9px 0;
+  overflow: hidden;
+  background-color: #e5e5e5;
+}
+.nav > li > a > img {
+  max-width: none;
+}
+.nav-tabs {
+  border-bottom: 1px solid #ddd;
+}
+.nav-tabs > li {
+  float: left;
+  margin-bottom: -1px;
+}
+.nav-tabs > li > a {
+  margin-right: 2px;
+  line-height: 1.42857143;
+  border: 1px solid transparent;
+  border-radius: 4px 4px 0 0;
+}
+.nav-tabs > li > a:hover {
+  border-color: #eee #eee #ddd;
+}
+.nav-tabs > li.active > a,
+.nav-tabs > li.active > a:hover,
+.nav-tabs > li.active > a:focus {
+  color: #555;
+  cursor: default;
+  background-color: #fff;
+  border: 1px solid #ddd;
+  border-bottom-color: transparent;
+}
+.nav-tabs.nav-justified {
+  width: 100%;
+  border-bottom: 0;
+}
+.nav-tabs.nav-justified > li {
+  float: none;
+}
+.nav-tabs.nav-justified > li > a {
+  margin-bottom: 5px;
+  text-align: center;
+}
+.nav-tabs.nav-justified > .dropdown .dropdown-menu {
+  top: auto;
+  left: auto;
+}
+@media (min-width: 768px) {
+  .nav-tabs.nav-justified > li {
+    display: table-cell;
+    width: 1%;
+  }
+  .nav-tabs.nav-justified > li > a {
+    margin-bottom: 0;
+  }
+}
+.nav-tabs.nav-justified > li > a {
+  margin-right: 0;
+  border-radius: 4px;
+}
+.nav-tabs.nav-justified > .active > a,
+.nav-tabs.nav-justified > .active > a:hover,
+.nav-tabs.nav-justified > .active > a:focus {
+  border: 1px solid #ddd;
+}
+@media (min-width: 768px) {
+  .nav-tabs.nav-justified > li > a {
+    border-bottom: 1px solid #ddd;
+    border-radius: 4px 4px 0 0;
+  }
+  .nav-tabs.nav-justified > .active > a,
+  .nav-tabs.nav-justified > .active > a:hover,
+  .nav-tabs.nav-justified > .active > a:focus {
+    border-bottom-color: #fff;
+  }
+}
+.nav-pills > li {
+  float: left;
+}
+.nav-pills > li > a {
+  border-radius: 4px;
+}
+.nav-pills > li + li {
+  margin-left: 2px;
+}
+.nav-pills > li.active > a,
+.nav-pills > li.active > a:hover,
+.nav-pills > li.active > a:focus {
+  color: #fff;
+  background-color: #337ab7;
+}
+.nav-stacked > li {
+  float: none;
+}
+.nav-stacked > li + li {
+  margin-top: 2px;
+  margin-left: 0;
+}
+.nav-justified {
+  width: 100%;
+}
+.nav-justified > li {
+  float: none;
+}
+.nav-justified > li > a {
+  margin-bottom: 5px;
+  text-align: center;
+}
+.nav-justified > .dropdown .dropdown-menu {
+  top: auto;
+  left: auto;
+}
+@media (min-width: 768px) {
+  .nav-justified > li {
+    display: table-cell;
+    width: 1%;
+  }
+  .nav-justified > li > a {
+    margin-bottom: 0;
+  }
+}
+.nav-tabs-justified {
+  border-bottom: 0;
+}
+.nav-tabs-justified > li > a {
+  margin-right: 0;
+  border-radius: 4px;
+}
+.nav-tabs-justified > .active > a,
+.nav-tabs-justified > .active > a:hover,
+.nav-tabs-justified > .active > a:focus {
+  border: 1px solid #ddd;
+}
+@media (min-width: 768px) {
+  .nav-tabs-justified > li > a {
+    border-bottom: 1px solid #ddd;
+    border-radius: 4px 4px 0 0;
+  }
+  .nav-tabs-justified > .active > a,
+  .nav-tabs-justified > .active > a:hover,
+  .nav-tabs-justified > .active > a:focus {
+    border-bottom-color: #fff;
+  }
+}
+.tab-content > .tab-pane {
+  display: none;
+}
+.tab-content > .active {
+  display: block;
+}
+.nav-tabs .dropdown-menu {
+  margin-top: -1px;
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+}
+.navbar {
+  position: relative;
+  min-height: 50px;
+  margin-bottom: 20px;
+  border: 1px solid transparent;
+}
+@media (min-width: 768px) {
+  .navbar {
+    border-radius: 4px;
+  }
+}
+@media (min-width: 768px) {
+  .navbar-header {
+    float: left;
+  }
+}
+.navbar-collapse {
+  padding-right: 15px;
+  padding-left: 15px;
+  overflow-x: visible;
+  -webkit-overflow-scrolling: touch;
+  border-top: 1px solid transparent;
+  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1);
+          box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1);
+}
+.navbar-collapse.in {
+  overflow-y: auto;
+}
+@media (min-width: 768px) {
+  .navbar-collapse {
+    width: auto;
+    border-top: 0;
+    -webkit-box-shadow: none;
+            box-shadow: none;
+  }
+  .navbar-collapse.collapse {
+    display: block !important;
+    height: auto !important;
+    padding-bottom: 0;
+    overflow: visible !important;
+  }
+  .navbar-collapse.in {
+    overflow-y: visible;
+  }
+  .navbar-fixed-top .navbar-collapse,
+  .navbar-static-top .navbar-collapse,
+  .navbar-fixed-bottom .navbar-collapse {
+    padding-right: 0;
+    padding-left: 0;
+  }
+}
+.navbar-fixed-top .navbar-collapse,
+.navbar-fixed-bottom .navbar-collapse {
+  max-height: 340px;
+}
+@media (max-device-width: 480px) and (orientation: landscape) {
+  .navbar-fixed-top .navbar-collapse,
+  .navbar-fixed-bottom .navbar-collapse {
+    max-height: 200px;
+  }
+}
+.container > .navbar-header,
+.container-fluid > .navbar-header,
+.container > .navbar-collapse,
+.container-fluid > .navbar-collapse {
+  margin-right: -15px;
+  margin-left: -15px;
+}
+@media (min-width: 768px) {
+  .container > .navbar-header,
+  .container-fluid > .navbar-header,
+  .container > .navbar-collapse,
+  .container-fluid > .navbar-collapse {
+    margin-right: 0;
+    margin-left: 0;
+  }
+}
+.navbar-static-top {
+  z-index: 1000;
+  border-width: 0 0 1px;
+}
+@media (min-width: 768px) {
+  .navbar-static-top {
+    border-radius: 0;
+  }
+}
+.navbar-fixed-top,
+.navbar-fixed-bottom {
+  position: fixed;
+  right: 0;
+  left: 0;
+  z-index: 1030;
+}
+@media (min-width: 768px) {
+  .navbar-fixed-top,
+  .navbar-fixed-bottom {
+    border-radius: 0;
+  }
+}
+.navbar-fixed-top {
+  top: 0;
+  border-width: 0 0 1px;
+}
+.navbar-fixed-bottom {
+  bottom: 0;
+  margin-bottom: 0;
+  border-width: 1px 0 0;
+}
+.navbar-brand {
+  float: left;
+  height: 50px;
+  padding: 15px 15px;
+  font-size: 18px;
+  line-height: 20px;
+}
+.navbar-brand:hover,
+.navbar-brand:focus {
+  text-decoration: none;
+}
+.navbar-brand > img {
+  display: block;
+}
+@media (min-width: 768px) {
+  .navbar > .container .navbar-brand,
+  .navbar > .container-fluid .navbar-brand {
+    margin-left: -15px;
+  }
+}
+.navbar-toggle {
+  position: relative;
+  float: right;
+  padding: 9px 10px;
+  margin-top: 8px;
+  margin-right: 15px;
+  margin-bottom: 8px;
+  background-color: transparent;
+  background-image: none;
+  border: 1px solid transparent;
+  border-radius: 4px;
+}
+.navbar-toggle:focus {
+  outline: 0;
+}
+.navbar-toggle .icon-bar {
+  display: block;
+  width: 22px;
+  height: 2px;
+  border-radius: 1px;
+}
+.navbar-toggle .icon-bar + .icon-bar {
+  margin-top: 4px;
+}
+@media (min-width: 768px) {
+  .navbar-toggle {
+    display: none;
+  }
+}
+.navbar-nav {
+  margin: 7.5px -15px;
+}
+.navbar-nav > li > a {
+  padding-top: 10px;
+  padding-bottom: 10px;
+  line-height: 20px;
+}
+@media (max-width: 767px) {
+  .navbar-nav .open .dropdown-menu {
+    position: static;
+    float: none;
+    width: auto;
+    margin-top: 0;
+    background-color: transparent;
+    border: 0;
+    -webkit-box-shadow: none;
+            box-shadow: none;
+  }
+  .navbar-nav .open .dropdown-menu > li > a,
+  .navbar-nav .open .dropdown-menu .dropdown-header {
+    padding: 5px 15px 5px 25px;
+  }
+  .navbar-nav .open .dropdown-menu > li > a {
+    line-height: 20px;
+  }
+  .navbar-nav .open .dropdown-menu > li > a:hover,
+  .navbar-nav .open .dropdown-menu > li > a:focus {
+    background-image: none;
+  }
+}
+@media (min-width: 768px) {
+  .navbar-nav {
+    float: left;
+    margin: 0;
+  }
+  .navbar-nav > li {
+    float: left;
+  }
+  .navbar-nav > li > a {
+    padding-top: 15px;
+    padding-bottom: 15px;
+  }
+}
+.navbar-form {
+  padding: 10px 15px;
+  margin-top: 8px;
+  margin-right: -15px;
+  margin-bottom: 8px;
+  margin-left: -15px;
+  border-top: 1px solid transparent;
+  border-bottom: 1px solid transparent;
+  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 1px 0 rgba(255, 255, 255, .1);
+          box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 1px 0 rgba(255, 255, 255, .1);
+}
+@media (min-width: 768px) {
+  .navbar-form .form-group {
+    display: inline-block;
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .navbar-form .form-control {
+    display: inline-block;
+    width: auto;
+    vertical-align: middle;
+  }
+  .navbar-form .form-control-static {
+    display: inline-block;
+  }
+  .navbar-form .input-group {
+    display: inline-table;
+    vertical-align: middle;
+  }
+  .navbar-form .input-group .input-group-addon,
+  .navbar-form .input-group .input-group-btn,
+  .navbar-form .input-group .form-control {
+    width: auto;
+  }
+  .navbar-form .input-group > .form-control {
+    width: 100%;
+  }
+  .navbar-form .control-label {
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .navbar-form .radio,
+  .navbar-form .checkbox {
+    display: inline-block;
+    margin-top: 0;
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  .navbar-form .radio label,
+  .navbar-form .checkbox label {
+    padding-left: 0;
+  }
+  .navbar-form .radio input[type="radio"],
+  .navbar-form .checkbox input[type="checkbox"] {
+    position: relative;
+    margin-left: 0;
+  }
+  .navbar-form .has-feedback .form-control-feedback {
+    top: 0;
+  }
+}
+@media (max-width: 767px) {
+  .navbar-form .form-group {
+    margin-bottom: 5px;
+  }
+  .navbar-form .form-group:last-child {
+    margin-bottom: 0;
+  }
+}
+@media (min-width: 768px) {
+  .navbar-form {
+    width: auto;
+    padding-top: 0;
+    padding-bottom: 0;
+    margin-right: 0;
+    margin-left: 0;
+    border: 0;
+    -webkit-box-shadow: none;
+            box-shadow: none;
+  }
+}
+.navbar-nav > li > .dropdown-menu {
+  margin-top: 0;
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+}
+.navbar-fixed-bottom .navbar-nav > li > .dropdown-menu {
+  margin-bottom: 0;
+  border-top-left-radius: 4px;
+  border-top-right-radius: 4px;
+  border-bottom-right-radius: 0;
+  border-bottom-left-radius: 0;
+}
+.navbar-btn {
+  margin-top: 8px;
+  margin-bottom: 8px;
+}
+.navbar-btn.btn-sm {
+  margin-top: 10px;
+  margin-bottom: 10px;
+}
+.navbar-btn.btn-xs {
+  margin-top: 14px;
+  margin-bottom: 14px;
+}
+.navbar-text {
+  margin-top: 15px;
+  margin-bottom: 15px;
+}
+@media (min-width: 768px) {
+  .navbar-text {
+    float: left;
+    margin-right: 15px;
+    margin-left: 15px;
+  }
+}
+@media (min-width: 768px) {
+  .navbar-left {
+    float: left !important;
+  }
+  .navbar-right {
+    float: right !important;
+    margin-right: -15px;
+  }
+  .navbar-right ~ .navbar-right {
+    margin-right: 0;
+  }
+}
+.navbar-default {
+  background-color: #f8f8f8;
+  border-color: #e7e7e7;
+}
+.navbar-default .navbar-brand {
+  color: #777;
+}
+.navbar-default .navbar-brand:hover,
+.navbar-default .navbar-brand:focus {
+  color: #5e5e5e;
+  background-color: transparent;
+}
+.navbar-default .navbar-text {
+  color: #777;
+}
+.navbar-default .navbar-nav > li > a {
+  color: #777;
+}
+.navbar-default .navbar-nav > li > a:hover,
+.navbar-default .navbar-nav > li > a:focus {
+  color: #333;
+  background-color: transparent;
+}
+.navbar-default .navbar-nav > .active > a,
+.navbar-default .navbar-nav > .active > a:hover,
+.navbar-default .navbar-nav > .active > a:focus {
+  color: #555;
+  background-color: #e7e7e7;
+}
+.navbar-default .navbar-nav > .disabled > a,
+.navbar-default .navbar-nav > .disabled > a:hover,
+.navbar-default .navbar-nav > .disabled > a:focus {
+  color: #ccc;
+  background-color: transparent;
+}
+.navbar-default .navbar-toggle {
+  border-color: #ddd;
+}
+.navbar-default .navbar-toggle:hover,
+.navbar-default .navbar-toggle:focus {
+  background-color: #ddd;
+}
+.navbar-default .navbar-toggle .icon-bar {
+  background-color: #888;
+}
+.navbar-default .navbar-collapse,
+.navbar-default .navbar-form {
+  border-color: #e7e7e7;
+}
+.navbar-default .navbar-nav > .open > a,
+.navbar-default .navbar-nav > .open > a:hover,
+.navbar-default .navbar-nav > .open > a:focus {
+  color: #555;
+  background-color: #e7e7e7;
+}
+@media (max-width: 767px) {
+  .navbar-default .navbar-nav .open .dropdown-menu > li > a {
+    color: #777;
+  }
+  .navbar-default .navbar-nav .open .dropdown-menu > li > a:hover,
+  .navbar-default .navbar-nav .open .dropdown-menu > li > a:focus {
+    color: #333;
+    background-color: transparent;
+  }
+  .navbar-default .navbar-nav .open .dropdown-menu > .active > a,
+  .navbar-default .navbar-nav .open .dropdown-menu > .active > a:hover,
+  .navbar-default .navbar-nav .open .dropdown-menu > .active > a:focus {
+    color: #555;
+    background-color: #e7e7e7;
+  }
+  .navbar-default .navbar-nav .open .dropdown-menu > .disabled > a,
+  .navbar-default .navbar-nav .open .dropdown-menu > .disabled > a:hover,
+  .navbar-default .navbar-nav .open .dropdown-menu > .disabled > a:focus {
+    color: #ccc;
+    background-color: transparent;
+  }
+}
+.navbar-default .navbar-link {
+  color: #777;
+}
+.navbar-default .navbar-link:hover {
+  color: #333;
+}
+.navbar-default .btn-link {
+  color: #777;
+}
+.navbar-default .btn-link:hover,
+.navbar-default .btn-link:focus {
+  color: #333;
+}
+.navbar-default .btn-link[disabled]:hover,
+fieldset[disabled] .navbar-default .btn-link:hover,
+.navbar-default .btn-link[disabled]:focus,
+fieldset[disabled] .navbar-default .btn-link:focus {
+  color: #ccc;
+}
+.navbar-inverse {
+  background-color: #222;
+  border-color: #080808;
+}
+.navbar-inverse .navbar-brand {
+  color: #9d9d9d;
+}
+.navbar-inverse .navbar-brand:hover,
+.navbar-inverse .navbar-brand:focus {
+  color: #fff;
+  background-color: transparent;
+}
+.navbar-inverse .navbar-text {
+  color: #9d9d9d;
+}
+.navbar-inverse .navbar-nav > li > a {
+  color: #9d9d9d;
+}
+.navbar-inverse .navbar-nav > li > a:hover,
+.navbar-inverse .navbar-nav > li > a:focus {
+  color: #fff;
+  background-color: transparent;
+}
+.navbar-inverse .navbar-nav > .active > a,
+.navbar-inverse .navbar-nav > .active > a:hover,
+.navbar-inverse .navbar-nav > .active > a:focus {
+  color: #fff;
+  background-color: #080808;
+}
+.navbar-inverse .navbar-nav > .disabled > a,
+.navbar-inverse .navbar-nav > .disabled > a:hover,
+.navbar-inverse .navbar-nav > .disabled > a:focus {
+  color: #444;
+  background-color: transparent;
+}
+.navbar-inverse .navbar-toggle {
+  border-color: #333;
+}
+.navbar-inverse .navbar-toggle:hover,
+.navbar-inverse .navbar-toggle:focus {
+  background-color: #333;
+}
+.navbar-inverse .navbar-toggle .icon-bar {
+  background-color: #fff;
+}
+.navbar-inverse .navbar-collapse,
+.navbar-inverse .navbar-form {
+  border-color: #101010;
+}
+.navbar-inverse .navbar-nav > .open > a,
+.navbar-inverse .navbar-nav > .open > a:hover,
+.navbar-inverse .navbar-nav > .open > a:focus {
+  color: #fff;
+  background-color: #080808;
+}
+@media (max-width: 767px) {
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .dropdown-header {
+    border-color: #080808;
+  }
+  .navbar-inverse .navbar-nav .open .dropdown-menu .divider {
+    background-color: #080808;
+  }
+  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a {
+    color: #9d9d9d;
+  }
+  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a:hover,
+  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a:focus {
+    color: #fff;
+    background-color: transparent;
+  }
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a,
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:hover,
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:focus {
+    color: #fff;
+    background-color: #080808;
+  }
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .disabled > a,
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .disabled > a:hover,
+  .navbar-inverse .navbar-nav .open .dropdown-menu > .disabled > a:focus {
+    color: #444;
+    background-color: transparent;
+  }
+}
+.navbar-inverse .navbar-link {
+  color: #9d9d9d;
+}
+.navbar-inverse .navbar-link:hover {
+  color: #fff;
+}
+.navbar-inverse .btn-link {
+  color: #9d9d9d;
+}
+.navbar-inverse .btn-link:hover,
+.navbar-inverse .btn-link:focus {
+  color: #fff;
+}
+.navbar-inverse .btn-link[disabled]:hover,
+fieldset[disabled] .navbar-inverse .btn-link:hover,
+.navbar-inverse .btn-link[disabled]:focus,
+fieldset[disabled] .navbar-inverse .btn-link:focus {
+  color: #444;
+}
+.breadcrumb {
+  padding: 8px 15px;
+  margin-bottom: 20px;
+  list-style: none;
+  background-color: #f5f5f5;
+  border-radius: 4px;
+}
+.breadcrumb > li {
+  display: inline-block;
+}
+.breadcrumb > li + li:before {
+  padding: 0 5px;
+  color: #ccc;
+  content: "/\00a0";
+}
+.breadcrumb > .active {
+  color: #777;
+}
+.pagination {
+  display: inline-block;
+  padding-left: 0;
+  margin: 20px 0;
+  border-radius: 4px;
+}
+.pagination > li {
+  display: inline;
+}
+.pagination > li > a,
+.pagination > li > span {
+  position: relative;
+  float: left;
+  padding: 6px 12px;
+  margin-left: -1px;
+  line-height: 1.42857143;
+  color: #337ab7;
+  text-decoration: none;
+  background-color: #fff;
+  border: 1px solid #ddd;
+}
+.pagination > li:first-child > a,
+.pagination > li:first-child > span {
+  margin-left: 0;
+  border-top-left-radius: 4px;
+  border-bottom-left-radius: 4px;
+}
+.pagination > li:last-child > a,
+.pagination > li:last-child > span {
+  border-top-right-radius: 4px;
+  border-bottom-right-radius: 4px;
+}
+.pagination > li > a:hover,
+.pagination > li > span:hover,
+.pagination > li > a:focus,
+.pagination > li > span:focus {
+  z-index: 2;
+  color: #23527c;
+  background-color: #eee;
+  border-color: #ddd;
+}
+.pagination > .active > a,
+.pagination > .active > span,
+.pagination > .active > a:hover,
+.pagination > .active > span:hover,
+.pagination > .active > a:focus,
+.pagination > .active > span:focus {
+  z-index: 3;
+  color: #fff;
+  cursor: default;
+  background-color: #337ab7;
+  border-color: #337ab7;
+}
+.pagination > .disabled > span,
+.pagination > .disabled > span:hover,
+.pagination > .disabled > span:focus,
+.pagination > .disabled > a,
+.pagination > .disabled > a:hover,
+.pagination > .disabled > a:focus {
+  color: #777;
+  cursor: not-allowed;
+  background-color: #fff;
+  border-color: #ddd;
+}
+.pagination-lg > li > a,
+.pagination-lg > li > span {
+  padding: 10px 16px;
+  font-size: 18px;
+  line-height: 1.3333333;
+}
+.pagination-lg > li:first-child > a,
+.pagination-lg > li:first-child > span {
+  border-top-left-radius: 6px;
+  border-bottom-left-radius: 6px;
+}
+.pagination-lg > li:last-child > a,
+.pagination-lg > li:last-child > span {
+  border-top-right-radius: 6px;
+  border-bottom-right-radius: 6px;
+}
+.pagination-sm > li > a,
+.pagination-sm > li > span {
+  padding: 5px 10px;
+  font-size: 12px;
+  line-height: 1.5;
+}
+.pagination-sm > li:first-child > a,
+.pagination-sm > li:first-child > span {
+  border-top-left-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.pagination-sm > li:last-child > a,
+.pagination-sm > li:last-child > span {
+  border-top-right-radius: 3px;
+  border-bottom-right-radius: 3px;
+}
+.pager {
+  padding-left: 0;
+  margin: 20px 0;
+  text-align: center;
+  list-style: none;
+}
+.pager li {
+  display: inline;
+}
+.pager li > a,
+.pager li > span {
+  display: inline-block;
+  padding: 5px 14px;
+  background-color: #fff;
+  border: 1px solid #ddd;
+  border-radius: 15px;
+}
+.pager li > a:hover,
+.pager li > a:focus {
+  text-decoration: none;
+  background-color: #eee;
+}
+.pager .next > a,
+.pager .next > span {
+  float: right;
+}
+.pager .previous > a,
+.pager .previous > span {
+  float: left;
+}
+.pager .disabled > a,
+.pager .disabled > a:hover,
+.pager .disabled > a:focus,
+.pager .disabled > span {
+  color: #777;
+  cursor: not-allowed;
+  background-color: #fff;
+}
+.label {
+  display: inline;
+  padding: .2em .6em .3em;
+  font-size: 75%;
+  font-weight: bold;
+  line-height: 1;
+  color: #fff;
+  text-align: center;
+  white-space: nowrap;
+  vertical-align: baseline;
+  border-radius: .25em;
+}
+a.label:hover,
+a.label:focus {
+  color: #fff;
+  text-decoration: none;
+  cursor: pointer;
+}
+.label:empty {
+  display: none;
+}
+.btn .label {
+  position: relative;
+  top: -1px;
+}
+.label-default {
+  background-color: #777;
+}
+.label-default[href]:hover,
+.label-default[href]:focus {
+  background-color: #5e5e5e;
+}
+.label-primary {
+  background-color: #337ab7;
+}
+.label-primary[href]:hover,
+.label-primary[href]:focus {
+  background-color: #286090;
+}
+.label-success {
+  background-color: #5cb85c;
+}
+.label-success[href]:hover,
+.label-success[href]:focus {
+  background-color: #449d44;
+}
+.label-info {
+  background-color: #5bc0de;
+}
+.label-info[href]:hover,
+.label-info[href]:focus {
+  background-color: #31b0d5;
+}
+.label-warning {
+  background-color: #f0ad4e;
+}
+.label-warning[href]:hover,
+.label-warning[href]:focus {
+  background-color: #ec971f;
+}
+.label-danger {
+  background-color: #d9534f;
+}
+.label-danger[href]:hover,
+.label-danger[href]:focus {
+  background-color: #c9302c;
+}
+.badge {
+  display: inline-block;
+  min-width: 10px;
+  padding: 3px 7px;
+  font-size: 12px;
+  font-weight: bold;
+  line-height: 1;
+  color: #fff;
+  text-align: center;
+  white-space: nowrap;
+  vertical-align: middle;
+  background-color: #777;
+  border-radius: 10px;
+}
+.badge:empty {
+  display: none;
+}
+.btn .badge {
+  position: relative;
+  top: -1px;
+}
+.btn-xs .badge,
+.btn-group-xs > .btn .badge {
+  top: 0;
+  padding: 1px 5px;
+}
+a.badge:hover,
+a.badge:focus {
+  color: #fff;
+  text-decoration: none;
+  cursor: pointer;
+}
+.list-group-item.active > .badge,
+.nav-pills > .active > a > .badge {
+  color: #337ab7;
+  background-color: #fff;
+}
+.list-group-item > .badge {
+  float: right;
+}
+.list-group-item > .badge + .badge {
+  margin-right: 5px;
+}
+.nav-pills > li > a > .badge {
+  margin-left: 3px;
+}
+.jumbotron {
+  padding-top: 30px;
+  padding-bottom: 30px;
+  margin-bottom: 30px;
+  color: inherit;
+  background-color: #eee;
+}
+.jumbotron h1,
+.jumbotron .h1 {
+  color: inherit;
+}
+.jumbotron p {
+  margin-bottom: 15px;
+  font-size: 21px;
+  font-weight: 200;
+}
+.jumbotron > hr {
+  border-top-color: #d5d5d5;
+}
+.container .jumbotron,
+.container-fluid .jumbotron {
+  padding-right: 15px;
+  padding-left: 15px;
+  border-radius: 6px;
+}
+.jumbotron .container {
+  max-width: 100%;
+}
+@media screen and (min-width: 768px) {
+  .jumbotron {
+    padding-top: 48px;
+    padding-bottom: 48px;
+  }
+  .container .jumbotron,
+  .container-fluid .jumbotron {
+    padding-right: 60px;
+    padding-left: 60px;
+  }
+  .jumbotron h1,
+  .jumbotron .h1 {
+    font-size: 63px;
+  }
+}
+.thumbnail {
+  display: block;
+  padding: 4px;
+  margin-bottom: 20px;
+  line-height: 1.42857143;
+  background-color: #fff;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  -webkit-transition: border .2s ease-in-out;
+       -o-transition: border .2s ease-in-out;
+          transition: border .2s ease-in-out;
+}
+.thumbnail > img,
+.thumbnail a > img {
+  margin-right: auto;
+  margin-left: auto;
+}
+a.thumbnail:hover,
+a.thumbnail:focus,
+a.thumbnail.active {
+  border-color: #337ab7;
+}
+.thumbnail .caption {
+  padding: 9px;
+  color: #333;
+}
+.alert {
+  padding: 15px;
+  margin-bottom: 20px;
+  border: 1px solid transparent;
+  border-radius: 4px;
+}
+.alert h4 {
+  margin-top: 0;
+  color: inherit;
+}
+.alert .alert-link {
+  font-weight: bold;
+}
+.alert > p,
+.alert > ul {
+  margin-bottom: 0;
+}
+.alert > p + p {
+  margin-top: 5px;
+}
+.alert-dismissable,
+.alert-dismissible {
+  padding-right: 35px;
+}
+.alert-dismissable .close,
+.alert-dismissible .close {
+  position: relative;
+  top: -2px;
+  right: -21px;
+  color: inherit;
+}
+.alert-success {
+  color: #3c763d;
+  background-color: #dff0d8;
+  border-color: #d6e9c6;
+}
+.alert-success hr {
+  border-top-color: #c9e2b3;
+}
+.alert-success .alert-link {
+  color: #2b542c;
+}
+.alert-info {
+  color: #31708f;
+  background-color: #d9edf7;
+  border-color: #bce8f1;
+}
+.alert-info hr {
+  border-top-color: #a6e1ec;
+}
+.alert-info .alert-link {
+  color: #245269;
+}
+.alert-warning {
+  color: #8a6d3b;
+  background-color: #fcf8e3;
+  border-color: #faebcc;
+}
+.alert-warning hr {
+  border-top-color: #f7e1b5;
+}
+.alert-warning .alert-link {
+  color: #66512c;
+}
+.alert-danger {
+  color: #a94442;
+  background-color: #f2dede;
+  border-color: #ebccd1;
+}
+.alert-danger hr {
+  border-top-color: #e4b9c0;
+}
+.alert-danger .alert-link {
+  color: #843534;
+}
+@-webkit-keyframes progress-bar-stripes {
+  from {
+    background-position: 40px 0;
+  }
+  to {
+    background-position: 0 0;
+  }
+}
+@-o-keyframes progress-bar-stripes {
+  from {
+    background-position: 40px 0;
+  }
+  to {
+    background-position: 0 0;
+  }
+}
+@keyframes progress-bar-stripes {
+  from {
+    background-position: 40px 0;
+  }
+  to {
+    background-position: 0 0;
+  }
+}
+.progress {
+  height: 20px;
+  margin-bottom: 20px;
+  overflow: hidden;
+  background-color: #f5f5f5;
+  border-radius: 4px;
+  -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, .1);
+          box-shadow: inset 0 1px 2px rgba(0, 0, 0, .1);
+}
+.progress-bar {
+  float: left;
+  width: 0;
+  height: 100%;
+  font-size: 12px;
+  line-height: 20px;
+  color: #fff;
+  text-align: center;
+  background-color: #337ab7;
+  -webkit-box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .15);
+          box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .15);
+  -webkit-transition: width .6s ease;
+       -o-transition: width .6s ease;
+          transition: width .6s ease;
+}
+.progress-striped .progress-bar,
+.progress-bar-striped {
+  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:      -o-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:         linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  -webkit-background-size: 40px 40px;
+          background-size: 40px 40px;
+}
+.progress.active .progress-bar,
+.progress-bar.active {
+  -webkit-animation: progress-bar-stripes 2s linear infinite;
+       -o-animation: progress-bar-stripes 2s linear infinite;
+          animation: progress-bar-stripes 2s linear infinite;
+}
+.progress-bar-success {
+  background-color: #5cb85c;
+}
+.progress-striped .progress-bar-success {
+  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:      -o-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:         linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+}
+.progress-bar-info {
+  background-color: #5bc0de;
+}
+.progress-striped .progress-bar-info {
+  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:      -o-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:         linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+}
+.progress-bar-warning {
+  background-color: #f0ad4e;
+}
+.progress-striped .progress-bar-warning {
+  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:      -o-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:         linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+}
+.progress-bar-danger {
+  background-color: #d9534f;
+}
+.progress-striped .progress-bar-danger {
+  background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:      -o-linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+  background-image:         linear-gradient(45deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
+}
+.media {
+  margin-top: 15px;
+}
+.media:first-child {
+  margin-top: 0;
+}
+.media,
+.media-body {
+  overflow: hidden;
+  zoom: 1;
+}
+.media-body {
+  width: 10000px;
+}
+.media-object {
+  display: block;
+}
+.media-object.img-thumbnail {
+  max-width: none;
+}
+.media-right,
+.media > .pull-right {
+  padding-left: 10px;
+}
+.media-left,
+.media > .pull-left {
+  padding-right: 10px;
+}
+.media-left,
+.media-right,
+.media-body {
+  display: table-cell;
+  vertical-align: top;
+}
+.media-middle {
+  vertical-align: middle;
+}
+.media-bottom {
+  vertical-align: bottom;
+}
+.media-heading {
+  margin-top: 0;
+  margin-bottom: 5px;
+}
+.media-list {
+  padding-left: 0;
+  list-style: none;
+}
+.list-group {
+  padding-left: 0;
+  margin-bottom: 20px;
+}
+.list-group-item {
+  position: relative;
+  display: block;
+  padding: 10px 15px;
+  margin-bottom: -1px;
+  background-color: #fff;
+  border: 1px solid #ddd;
+}
+.list-group-item:first-child {
+  border-top-left-radius: 4px;
+  border-top-right-radius: 4px;
+}
+.list-group-item:last-child {
+  margin-bottom: 0;
+  border-bottom-right-radius: 4px;
+  border-bottom-left-radius: 4px;
+}
+a.list-group-item,
+button.list-group-item {
+  color: #555;
+}
+a.list-group-item .list-group-item-heading,
+button.list-group-item .list-group-item-heading {
+  color: #333;
+}
+a.list-group-item:hover,
+button.list-group-item:hover,
+a.list-group-item:focus,
+button.list-group-item:focus {
+  color: #555;
+  text-decoration: none;
+  background-color: #f5f5f5;
+}
+button.list-group-item {
+  width: 100%;
+  text-align: left;
+}
+.list-group-item.disabled,
+.list-group-item.disabled:hover,
+.list-group-item.disabled:focus {
+  color: #777;
+  cursor: not-allowed;
+  background-color: #eee;
+}
+.list-group-item.disabled .list-group-item-heading,
+.list-group-item.disabled:hover .list-group-item-heading,
+.list-group-item.disabled:focus .list-group-item-heading {
+  color: inherit;
+}
+.list-group-item.disabled .list-group-item-text,
+.list-group-item.disabled:hover .list-group-item-text,
+.list-group-item.disabled:focus .list-group-item-text {
+  color: #777;
+}
+.list-group-item.active,
+.list-group-item.active:hover,
+.list-group-item.active:focus {
+  z-index: 2;
+  color: #fff;
+  background-color: #337ab7;
+  border-color: #337ab7;
+}
+.list-group-item.active .list-group-item-heading,
+.list-group-item.active:hover .list-group-item-heading,
+.list-group-item.active:focus .list-group-item-heading,
+.list-group-item.active .list-group-item-heading > small,
+.list-group-item.active:hover .list-group-item-heading > small,
+.list-group-item.active:focus .list-group-item-heading > small,
+.list-group-item.active .list-group-item-heading > .small,
+.list-group-item.active:hover .list-group-item-heading > .small,
+.list-group-item.active:focus .list-group-item-heading > .small {
+  color: inherit;
+}
+.list-group-item.active .list-group-item-text,
+.list-group-item.active:hover .list-group-item-text,
+.list-group-item.active:focus .list-group-item-text {
+  color: #c7ddef;
+}
+.list-group-item-success {
+  color: #3c763d;
+  background-color: #dff0d8;
+}
+a.list-group-item-success,
+button.list-group-item-success {
+  color: #3c763d;
+}
+a.list-group-item-success .list-group-item-heading,
+button.list-group-item-success .list-group-item-heading {
+  color: inherit;
+}
+a.list-group-item-success:hover,
+button.list-group-item-success:hover,
+a.list-group-item-success:focus,
+button.list-group-item-success:focus {
+  color: #3c763d;
+  background-color: #d0e9c6;
+}
+a.list-group-item-success.active,
+button.list-group-item-success.active,
+a.list-group-item-success.active:hover,
+button.list-group-item-success.active:hover,
+a.list-group-item-success.active:focus,
+button.list-group-item-success.active:focus {
+  color: #fff;
+  background-color: #3c763d;
+  border-color: #3c763d;
+}
+.list-group-item-info {
+  color: #31708f;
+  background-color: #d9edf7;
+}
+a.list-group-item-info,
+button.list-group-item-info {
+  color: #31708f;
+}
+a.list-group-item-info .list-group-item-heading,
+button.list-group-item-info .list-group-item-heading {
+  color: inherit;
+}
+a.list-group-item-info:hover,
+button.list-group-item-info:hover,
+a.list-group-item-info:focus,
+button.list-group-item-info:focus {
+  color: #31708f;
+  background-color: #c4e3f3;
+}
+a.list-group-item-info.active,
+button.list-group-item-info.active,
+a.list-group-item-info.active:hover,
+button.list-group-item-info.active:hover,
+a.list-group-item-info.active:focus,
+button.list-group-item-info.active:focus {
+  color: #fff;
+  background-color: #31708f;
+  border-color: #31708f;
+}
+.list-group-item-warning {
+  color: #8a6d3b;
+  background-color: #fcf8e3;
+}
+a.list-group-item-warning,
+button.list-group-item-warning {
+  color: #8a6d3b;
+}
+a.list-group-item-warning .list-group-item-heading,
+button.list-group-item-warning .list-group-item-heading {
+  color: inherit;
+}
+a.list-group-item-warning:hover,
+button.list-group-item-warning:hover,
+a.list-group-item-warning:focus,
+button.list-group-item-warning:focus {
+  color: #8a6d3b;
+  background-color: #faf2cc;
+}
+a.list-group-item-warning.active,
+button.list-group-item-warning.active,
+a.list-group-item-warning.active:hover,
+button.list-group-item-warning.active:hover,
+a.list-group-item-warning.active:focus,
+button.list-group-item-warning.active:focus {
+  color: #fff;
+  background-color: #8a6d3b;
+  border-color: #8a6d3b;
+}
+.list-group-item-danger {
+  color: #a94442;
+  background-color: #f2dede;
+}
+a.list-group-item-danger,
+button.list-group-item-danger {
+  color: #a94442;
+}
+a.list-group-item-danger .list-group-item-heading,
+button.list-group-item-danger .list-group-item-heading {
+  color: inherit;
+}
+a.list-group-item-danger:hover,
+button.list-group-item-danger:hover,
+a.list-group-item-danger:focus,
+button.list-group-item-danger:focus {
+  color: #a94442;
+  background-color: #ebcccc;
+}
+a.list-group-item-danger.active,
+button.list-group-item-danger.active,
+a.list-group-item-danger.active:hover,
+button.list-group-item-danger.active:hover,
+a.list-group-item-danger.active:focus,
+button.list-group-item-danger.active:focus {
+  color: #fff;
+  background-color: #a94442;
+  border-color: #a94442;
+}
+.list-group-item-heading {
+  margin-top: 0;
+  margin-bottom: 5px;
+}
+.list-group-item-text {
+  margin-bottom: 0;
+  line-height: 1.3;
+}
+.panel {
+  margin-bottom: 20px;
+  background-color: #fff;
+  border: 1px solid transparent;
+  border-radius: 4px;
+  -webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .05);
+          box-shadow: 0 1px 1px rgba(0, 0, 0, .05);
+}
+.panel-body {
+  padding: 15px;
+}
+.panel-heading {
+  padding: 10px 15px;
+  border-bottom: 1px solid transparent;
+  border-top-left-radius: 3px;
+  border-top-right-radius: 3px;
+}
+.panel-heading > .dropdown .dropdown-toggle {
+  color: inherit;
+}
+.panel-title {
+  margin-top: 0;
+  margin-bottom: 0;
+  font-size: 16px;
+  color: inherit;
+}
+.panel-title > a,
+.panel-title > small,
+.panel-title > .small,
+.panel-title > small > a,
+.panel-title > .small > a {
+  color: inherit;
+}
+.panel-footer {
+  padding: 10px 15px;
+  background-color: #f5f5f5;
+  border-top: 1px solid #ddd;
+  border-bottom-right-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.panel > .list-group,
+.panel > .panel-collapse > .list-group {
+  margin-bottom: 0;
+}
+.panel > .list-group .list-group-item,
+.panel > .panel-collapse > .list-group .list-group-item {
+  border-width: 1px 0;
+  border-radius: 0;
+}
+.panel > .list-group:first-child .list-group-item:first-child,
+.panel > .panel-collapse > .list-group:first-child .list-group-item:first-child {
+  border-top: 0;
+  border-top-left-radius: 3px;
+  border-top-right-radius: 3px;
+}
+.panel > .list-group:last-child .list-group-item:last-child,
+.panel > .panel-collapse > .list-group:last-child .list-group-item:last-child {
+  border-bottom: 0;
+  border-bottom-right-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.panel > .panel-heading + .panel-collapse > .list-group .list-group-item:first-child {
+  border-top-left-radius: 0;
+  border-top-right-radius: 0;
+}
+.panel-heading + .list-group .list-group-item:first-child {
+  border-top-width: 0;
+}
+.list-group + .panel-footer {
+  border-top-width: 0;
+}
+.panel > .table,
+.panel > .table-responsive > .table,
+.panel > .panel-collapse > .table {
+  margin-bottom: 0;
+}
+.panel > .table caption,
+.panel > .table-responsive > .table caption,
+.panel > .panel-collapse > .table caption {
+  padding-right: 15px;
+  padding-left: 15px;
+}
+.panel > .table:first-child,
+.panel > .table-responsive:first-child > .table:first-child {
+  border-top-left-radius: 3px;
+  border-top-right-radius: 3px;
+}
+.panel > .table:first-child > thead:first-child > tr:first-child,
+.panel > .table-responsive:first-child > .table:first-child > thead:first-child > tr:first-child,
+.panel > .table:first-child > tbody:first-child > tr:first-child,
+.panel > .table-responsive:first-child > .table:first-child > tbody:first-child > tr:first-child {
+  border-top-left-radius: 3px;
+  border-top-right-radius: 3px;
+}
+.panel > .table:first-child > thead:first-child > tr:first-child td:first-child,
+.panel > .table-responsive:first-child > .table:first-child > thead:first-child > tr:first-child td:first-child,
+.panel > .table:first-child > tbody:first-child > tr:first-child td:first-child,
+.panel > .table-responsive:first-child > .table:first-child > tbody:first-child > tr:first-child td:first-child,
+.panel > .table:first-child > thead:first-child > tr:first-child th:first-child,
+.panel > .table-responsive:first-child > .table:first-child > thead:first-child > tr:first-child th:first-child,
+.panel > .table:first-child > tbody:first-child > tr:first-child th:first-child,
+.panel > .table-responsive:first-child > .table:first-child > tbody:first-child > tr:first-child th:first-child {
+  border-top-left-radius: 3px;
+}
+.panel > .table:first-child > thead:first-child > tr:first-child td:last-child,
+.panel > .table-responsive:first-child > .table:first-child > thead:first-child > tr:first-child td:last-child,
+.panel > .table:first-child > tbody:first-child > tr:first-child td:last-child,
+.panel > .table-responsive:first-child > .table:first-child > tbody:first-child > tr:first-child td:last-child,
+.panel > .table:first-child > thead:first-child > tr:first-child th:last-child,
+.panel > .table-responsive:first-child > .table:first-child > thead:first-child > tr:first-child th:last-child,
+.panel > .table:first-child > tbody:first-child > tr:first-child th:last-child,
+.panel > .table-responsive:first-child > .table:first-child > tbody:first-child > tr:first-child th:last-child {
+  border-top-right-radius: 3px;
+}
+.panel > .table:last-child,
+.panel > .table-responsive:last-child > .table:last-child {
+  border-bottom-right-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.panel > .table:last-child > tbody:last-child > tr:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tbody:last-child > tr:last-child,
+.panel > .table:last-child > tfoot:last-child > tr:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tfoot:last-child > tr:last-child {
+  border-bottom-right-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.panel > .table:last-child > tbody:last-child > tr:last-child td:first-child,
+.panel > .table-responsive:last-child > .table:last-child > tbody:last-child > tr:last-child td:first-child,
+.panel > .table:last-child > tfoot:last-child > tr:last-child td:first-child,
+.panel > .table-responsive:last-child > .table:last-child > tfoot:last-child > tr:last-child td:first-child,
+.panel > .table:last-child > tbody:last-child > tr:last-child th:first-child,
+.panel > .table-responsive:last-child > .table:last-child > tbody:last-child > tr:last-child th:first-child,
+.panel > .table:last-child > tfoot:last-child > tr:last-child th:first-child,
+.panel > .table-responsive:last-child > .table:last-child > tfoot:last-child > tr:last-child th:first-child {
+  border-bottom-left-radius: 3px;
+}
+.panel > .table:last-child > tbody:last-child > tr:last-child td:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tbody:last-child > tr:last-child td:last-child,
+.panel > .table:last-child > tfoot:last-child > tr:last-child td:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tfoot:last-child > tr:last-child td:last-child,
+.panel > .table:last-child > tbody:last-child > tr:last-child th:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tbody:last-child > tr:last-child th:last-child,
+.panel > .table:last-child > tfoot:last-child > tr:last-child th:last-child,
+.panel > .table-responsive:last-child > .table:last-child > tfoot:last-child > tr:last-child th:last-child {
+  border-bottom-right-radius: 3px;
+}
+.panel > .panel-body + .table,
+.panel > .panel-body + .table-responsive,
+.panel > .table + .panel-body,
+.panel > .table-responsive + .panel-body {
+  border-top: 1px solid #ddd;
+}
+.panel > .table > tbody:first-child > tr:first-child th,
+.panel > .table > tbody:first-child > tr:first-child td {
+  border-top: 0;
+}
+.panel > .table-bordered,
+.panel > .table-responsive > .table-bordered {
+  border: 0;
+}
+.panel > .table-bordered > thead > tr > th:first-child,
+.panel > .table-responsive > .table-bordered > thead > tr > th:first-child,
+.panel > .table-bordered > tbody > tr > th:first-child,
+.panel > .table-responsive > .table-bordered > tbody > tr > th:first-child,
+.panel > .table-bordered > tfoot > tr > th:first-child,
+.panel > .table-responsive > .table-bordered > tfoot > tr > th:first-child,
+.panel > .table-bordered > thead > tr > td:first-child,
+.panel > .table-responsive > .table-bordered > thead > tr > td:first-child,
+.panel > .table-bordered > tbody > tr > td:first-child,
+.panel > .table-responsive > .table-bordered > tbody > tr > td:first-child,
+.panel > .table-bordered > tfoot > tr > td:first-child,
+.panel > .table-responsive > .table-bordered > tfoot > tr > td:first-child {
+  border-left: 0;
+}
+.panel > .table-bordered > thead > tr > th:last-child,
+.panel > .table-responsive > .table-bordered > thead > tr > th:last-child,
+.panel > .table-bordered > tbody > tr > th:last-child,
+.panel > .table-responsive > .table-bordered > tbody > tr > th:last-child,
+.panel > .table-bordered > tfoot > tr > th:last-child,
+.panel > .table-responsive > .table-bordered > tfoot > tr > th:last-child,
+.panel > .table-bordered > thead > tr > td:last-child,
+.panel > .table-responsive > .table-bordered > thead > tr > td:last-child,
+.panel > .table-bordered > tbody > tr > td:last-child,
+.panel > .table-responsive > .table-bordered > tbody > tr > td:last-child,
+.panel > .table-bordered > tfoot > tr > td:last-child,
+.panel > .table-responsive > .table-bordered > tfoot > tr > td:last-child {
+  border-right: 0;
+}
+.panel > .table-bordered > thead > tr:first-child > td,
+.panel > .table-responsive > .table-bordered > thead > tr:first-child > td,
+.panel > .table-bordered > tbody > tr:first-child > td,
+.panel > .table-responsive > .table-bordered > tbody > tr:first-child > td,
+.panel > .table-bordered > thead > tr:first-child > th,
+.panel > .table-responsive > .table-bordered > thead > tr:first-child > th,
+.panel > .table-bordered > tbody > tr:first-child > th,
+.panel > .table-responsive > .table-bordered > tbody > tr:first-child > th {
+  border-bottom: 0;
+}
+.panel > .table-bordered > tbody > tr:last-child > td,
+.panel > .table-responsive > .table-bordered > tbody > tr:last-child > td,
+.panel > .table-bordered > tfoot > tr:last-child > td,
+.panel > .table-responsive > .table-bordered > tfoot > tr:last-child > td,
+.panel > .table-bordered > tbody > tr:last-child > th,
+.panel > .table-responsive > .table-bordered > tbody > tr:last-child > th,
+.panel > .table-bordered > tfoot > tr:last-child > th,
+.panel > .table-responsive > .table-bordered > tfoot > tr:last-child > th {
+  border-bottom: 0;
+}
+.panel > .table-responsive {
+  margin-bottom: 0;
+  border: 0;
+}
+.panel-group {
+  margin-bottom: 20px;
+}
+.panel-group .panel {
+  margin-bottom: 0;
+  border-radius: 4px;
+}
+.panel-group .panel + .panel {
+  margin-top: 5px;
+}
+.panel-group .panel-heading {
+  border-bottom: 0;
+}
+.panel-group .panel-heading + .panel-collapse > .panel-body,
+.panel-group .panel-heading + .panel-collapse > .list-group {
+  border-top: 1px solid #ddd;
+}
+.panel-group .panel-footer {
+  border-top: 0;
+}
+.panel-group .panel-footer + .panel-collapse .panel-body {
+  border-bottom: 1px solid #ddd;
+}
+.panel-default {
+  border-color: #ddd;
+}
+.panel-default > .panel-heading {
+  color: #333;
+  background-color: #f5f5f5;
+  border-color: #ddd;
+}
+.panel-default > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #ddd;
+}
+.panel-default > .panel-heading .badge {
+  color: #f5f5f5;
+  background-color: #333;
+}
+.panel-default > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #ddd;
+}
+.panel-primary {
+  border-color: #337ab7;
+}
+.panel-primary > .panel-heading {
+  color: #fff;
+  background-color: #337ab7;
+  border-color: #337ab7;
+}
+.panel-primary > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #337ab7;
+}
+.panel-primary > .panel-heading .badge {
+  color: #337ab7;
+  background-color: #fff;
+}
+.panel-primary > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #337ab7;
+}
+.panel-success {
+  border-color: #d6e9c6;
+}
+.panel-success > .panel-heading {
+  color: #3c763d;
+  background-color: #dff0d8;
+  border-color: #d6e9c6;
+}
+.panel-success > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #d6e9c6;
+}
+.panel-success > .panel-heading .badge {
+  color: #dff0d8;
+  background-color: #3c763d;
+}
+.panel-success > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #d6e9c6;
+}
+.panel-info {
+  border-color: #bce8f1;
+}
+.panel-info > .panel-heading {
+  color: #31708f;
+  background-color: #d9edf7;
+  border-color: #bce8f1;
+}
+.panel-info > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #bce8f1;
+}
+.panel-info > .panel-heading .badge {
+  color: #d9edf7;
+  background-color: #31708f;
+}
+.panel-info > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #bce8f1;
+}
+.panel-warning {
+  border-color: #faebcc;
+}
+.panel-warning > .panel-heading {
+  color: #8a6d3b;
+  background-color: #fcf8e3;
+  border-color: #faebcc;
+}
+.panel-warning > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #faebcc;
+}
+.panel-warning > .panel-heading .badge {
+  color: #fcf8e3;
+  background-color: #8a6d3b;
+}
+.panel-warning > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #faebcc;
+}
+.panel-danger {
+  border-color: #ebccd1;
+}
+.panel-danger > .panel-heading {
+  color: #a94442;
+  background-color: #f2dede;
+  border-color: #ebccd1;
+}
+.panel-danger > .panel-heading + .panel-collapse > .panel-body {
+  border-top-color: #ebccd1;
+}
+.panel-danger > .panel-heading .badge {
+  color: #f2dede;
+  background-color: #a94442;
+}
+.panel-danger > .panel-footer + .panel-collapse > .panel-body {
+  border-bottom-color: #ebccd1;
+}
+.embed-responsive {
+  position: relative;
+  display: block;
+  height: 0;
+  padding: 0;
+  overflow: hidden;
+}
+.embed-responsive .embed-responsive-item,
+.embed-responsive iframe,
+.embed-responsive embed,
+.embed-responsive object,
+.embed-responsive video {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  border: 0;
+}
+.embed-responsive-16by9 {
+  padding-bottom: 56.25%;
+}
+.embed-responsive-4by3 {
+  padding-bottom: 75%;
+}
+.well {
+  min-height: 20px;
+  padding: 19px;
+  margin-bottom: 20px;
+  background-color: #f5f5f5;
+  border: 1px solid #e3e3e3;
+  border-radius: 4px;
+  -webkit-box-shadow: inset 0 1px 1px rgba(0, 0, 0, .05);
+          box-shadow: inset 0 1px 1px rgba(0, 0, 0, .05);
+}
+.well blockquote {
+  border-color: #ddd;
+  border-color: rgba(0, 0, 0, .15);
+}
+.well-lg {
+  padding: 24px;
+  border-radius: 6px;
+}
+.well-sm {
+  padding: 9px;
+  border-radius: 3px;
+}
+.close {
+  float: right;
+  font-size: 21px;
+  font-weight: bold;
+  line-height: 1;
+  color: #000;
+  text-shadow: 0 1px 0 #fff;
+  filter: alpha(opacity=20);
+  opacity: .2;
+}
+.close:hover,
+.close:focus {
+  color: #000;
+  text-decoration: none;
+  cursor: pointer;
+  filter: alpha(opacity=50);
+  opacity: .5;
+}
+button.close {
+  -webkit-appearance: none;
+  padding: 0;
+  cursor: pointer;
+  background: transparent;
+  border: 0;
+}
+.modal-open {
+  overflow: hidden;
+}
+.modal {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 1050;
+  display: none;
+  overflow: hidden;
+  -webkit-overflow-scrolling: touch;
+  outline: 0;
+}
+.modal.fade .modal-dialog {
+  -webkit-transition: -webkit-transform .3s ease-out;
+       -o-transition:      -o-transform .3s ease-out;
+          transition:         transform .3s ease-out;
+  -webkit-transform: translate(0, -25%);
+      -ms-transform: translate(0, -25%);
+       -o-transform: translate(0, -25%);
+          transform: translate(0, -25%);
+}
+.modal.in .modal-dialog {
+  -webkit-transform: translate(0, 0);
+      -ms-transform: translate(0, 0);
+       -o-transform: translate(0, 0);
+          transform: translate(0, 0);
+}
+.modal-open .modal {
+  overflow-x: hidden;
+  overflow-y: auto;
+}
+.modal-dialog {
+  position: relative;
+  width: auto;
+  margin: 10px;
+}
+.modal-content {
+  position: relative;
+  background-color: #fff;
+  -webkit-background-clip: padding-box;
+          background-clip: padding-box;
+  border: 1px solid #999;
+  border: 1px solid rgba(0, 0, 0, .2);
+  border-radius: 6px;
+  outline: 0;
+  -webkit-box-shadow: 0 3px 9px rgba(0, 0, 0, .5);
+          box-shadow: 0 3px 9px rgba(0, 0, 0, .5);
+}
+.modal-backdrop {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 1040;
+  background-color: #000;
+}
+.modal-backdrop.fade {
+  filter: alpha(opacity=0);
+  opacity: 0;
+}
+.modal-backdrop.in {
+  filter: alpha(opacity=50);
+  opacity: .5;
+}
+.modal-header {
+  padding: 15px;
+  border-bottom: 1px solid #e5e5e5;
+}
+.modal-header .close {
+  margin-top: -2px;
+}
+.modal-title {
+  margin: 0;
+  line-height: 1.42857143;
+}
+.modal-body {
+  position: relative;
+  padding: 15px;
+}
+.modal-footer {
+  padding: 15px;
+  text-align: right;
+  border-top: 1px solid #e5e5e5;
+}
+.modal-footer .btn + .btn {
+  margin-bottom: 0;
+  margin-left: 5px;
+}
+.modal-footer .btn-group .btn + .btn {
+  margin-left: -1px;
+}
+.modal-footer .btn-block + .btn-block {
+  margin-left: 0;
+}
+.modal-scrollbar-measure {
+  position: absolute;
+  top: -9999px;
+  width: 50px;
+  height: 50px;
+  overflow: scroll;
+}
+@media (min-width: 768px) {
+  .modal-dialog {
+    width: 600px;
+    margin: 30px auto;
+  }
+  .modal-content {
+    -webkit-box-shadow: 0 5px 15px rgba(0, 0, 0, .5);
+            box-shadow: 0 5px 15px rgba(0, 0, 0, .5);
+  }
+  .modal-sm {
+    width: 300px;
+  }
+}
+@media (min-width: 992px) {
+  .modal-lg {
+    width: 900px;
+  }
+}
+.tooltip {
+  position: absolute;
+  z-index: 1070;
+  display: block;
+  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+  font-size: 12px;
+  font-style: normal;
+  font-weight: normal;
+  line-height: 1.42857143;
+  text-align: left;
+  text-align: start;
+  text-decoration: none;
+  text-shadow: none;
+  text-transform: none;
+  letter-spacing: normal;
+  word-break: normal;
+  word-spacing: normal;
+  word-wrap: normal;
+  white-space: normal;
+  filter: alpha(opacity=0);
+  opacity: 0;
+
+  line-break: auto;
+}
+.tooltip.in {
+  filter: alpha(opacity=90);
+  opacity: .9;
+}
+.tooltip.top {
+  padding: 5px 0;
+  margin-top: -3px;
+}
+.tooltip.right {
+  padding: 0 5px;
+  margin-left: 3px;
+}
+.tooltip.bottom {
+  padding: 5px 0;
+  margin-top: 3px;
+}
+.tooltip.left {
+  padding: 0 5px;
+  margin-left: -3px;
+}
+.tooltip-inner {
+  max-width: 200px;
+  padding: 3px 8px;
+  color: #fff;
+  text-align: center;
+  background-color: #000;
+  border-radius: 4px;
+}
+.tooltip-arrow {
+  position: absolute;
+  width: 0;
+  height: 0;
+  border-color: transparent;
+  border-style: solid;
+}
+.tooltip.top .tooltip-arrow {
+  bottom: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-width: 5px 5px 0;
+  border-top-color: #000;
+}
+.tooltip.top-left .tooltip-arrow {
+  right: 5px;
+  bottom: 0;
+  margin-bottom: -5px;
+  border-width: 5px 5px 0;
+  border-top-color: #000;
+}
+.tooltip.top-right .tooltip-arrow {
+  bottom: 0;
+  left: 5px;
+  margin-bottom: -5px;
+  border-width: 5px 5px 0;
+  border-top-color: #000;
+}
+.tooltip.right .tooltip-arrow {
+  top: 50%;
+  left: 0;
+  margin-top: -5px;
+  border-width: 5px 5px 5px 0;
+  border-right-color: #000;
+}
+.tooltip.left .tooltip-arrow {
+  top: 50%;
+  right: 0;
+  margin-top: -5px;
+  border-width: 5px 0 5px 5px;
+  border-left-color: #000;
+}
+.tooltip.bottom .tooltip-arrow {
+  top: 0;
+  left: 50%;
+  margin-left: -5px;
+  border-width: 0 5px 5px;
+  border-bottom-color: #000;
+}
+.tooltip.bottom-left .tooltip-arrow {
+  top: 0;
+  right: 5px;
+  margin-top: -5px;
+  border-width: 0 5px 5px;
+  border-bottom-color: #000;
+}
+.tooltip.bottom-right .tooltip-arrow {
+  top: 0;
+  left: 5px;
+  margin-top: -5px;
+  border-width: 0 5px 5px;
+  border-bottom-color: #000;
+}
+.popover {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: 1060;
+  display: none;
+  max-width: 276px;
+  padding: 1px;
+  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+  font-size: 14px;
+  font-style: normal;
+  font-weight: normal;
+  line-height: 1.42857143;
+  text-align: left;
+  text-align: start;
+  text-decoration: none;
+  text-shadow: none;
+  text-transform: none;
+  letter-spacing: normal;
+  word-break: normal;
+  word-spacing: normal;
+  word-wrap: normal;
+  white-space: normal;
+  background-color: #fff;
+  -webkit-background-clip: padding-box;
+          background-clip: padding-box;
+  border: 1px solid #ccc;
+  border: 1px solid rgba(0, 0, 0, .2);
+  border-radius: 6px;
+  -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, .2);
+          box-shadow: 0 5px 10px rgba(0, 0, 0, .2);
+
+  line-break: auto;
+}
+.popover.top {
+  margin-top: -10px;
+}
+.popover.right {
+  margin-left: 10px;
+}
+.popover.bottom {
+  margin-top: 10px;
+}
+.popover.left {
+  margin-left: -10px;
+}
+.popover-title {
+  padding: 8px 14px;
+  margin: 0;
+  font-size: 14px;
+  background-color: #f7f7f7;
+  border-bottom: 1px solid #ebebeb;
+  border-radius: 5px 5px 0 0;
+}
+.popover-content {
+  padding: 9px 14px;
+}
+.popover > .arrow,
+.popover > .arrow:after {
+  position: absolute;
+  display: block;
+  width: 0;
+  height: 0;
+  border-color: transparent;
+  border-style: solid;
+}
+.popover > .arrow {
+  border-width: 11px;
+}
+.popover > .arrow:after {
+  content: "";
+  border-width: 10px;
+}
+.popover.top > .arrow {
+  bottom: -11px;
+  left: 50%;
+  margin-left: -11px;
+  border-top-color: #999;
+  border-top-color: rgba(0, 0, 0, .25);
+  border-bottom-width: 0;
+}
+.popover.top > .arrow:after {
+  bottom: 1px;
+  margin-left: -10px;
+  content: " ";
+  border-top-color: #fff;
+  border-bottom-width: 0;
+}
+.popover.right > .arrow {
+  top: 50%;
+  left: -11px;
+  margin-top: -11px;
+  border-right-color: #999;
+  border-right-color: rgba(0, 0, 0, .25);
+  border-left-width: 0;
+}
+.popover.right > .arrow:after {
+  bottom: -10px;
+  left: 1px;
+  content: " ";
+  border-right-color: #fff;
+  border-left-width: 0;
+}
+.popover.bottom > .arrow {
+  top: -11px;
+  left: 50%;
+  margin-left: -11px;
+  border-top-width: 0;
+  border-bottom-color: #999;
+  border-bottom-color: rgba(0, 0, 0, .25);
+}
+.popover.bottom > .arrow:after {
+  top: 1px;
+  margin-left: -10px;
+  content: " ";
+  border-top-width: 0;
+  border-bottom-color: #fff;
+}
+.popover.left > .arrow {
+  top: 50%;
+  right: -11px;
+  margin-top: -11px;
+  border-right-width: 0;
+  border-left-color: #999;
+  border-left-color: rgba(0, 0, 0, .25);
+}
+.popover.left > .arrow:after {
+  right: 1px;
+  bottom: -10px;
+  content: " ";
+  border-right-width: 0;
+  border-left-color: #fff;
+}
+.carousel {
+  position: relative;
+}
+.carousel-inner {
+  position: relative;
+  width: 100%;
+  overflow: hidden;
+}
+.carousel-inner > .item {
+  position: relative;
+  display: none;
+  -webkit-transition: .6s ease-in-out left;
+       -o-transition: .6s ease-in-out left;
+          transition: .6s ease-in-out left;
+}
+.carousel-inner > .item > img,
+.carousel-inner > .item > a > img {
+  line-height: 1;
+}
+@media all and (transform-3d), (-webkit-transform-3d) {
+  .carousel-inner > .item {
+    -webkit-transition: -webkit-transform .6s ease-in-out;
+         -o-transition:      -o-transform .6s ease-in-out;
+            transition:         transform .6s ease-in-out;
+
+    -webkit-backface-visibility: hidden;
+            backface-visibility: hidden;
+    -webkit-perspective: 1000px;
+            perspective: 1000px;
+  }
+  .carousel-inner > .item.next,
+  .carousel-inner > .item.active.right {
+    left: 0;
+    -webkit-transform: translate3d(100%, 0, 0);
+            transform: translate3d(100%, 0, 0);
+  }
+  .carousel-inner > .item.prev,
+  .carousel-inner > .item.active.left {
+    left: 0;
+    -webkit-transform: translate3d(-100%, 0, 0);
+            transform: translate3d(-100%, 0, 0);
+  }
+  .carousel-inner > .item.next.left,
+  .carousel-inner > .item.prev.right,
+  .carousel-inner > .item.active {
+    left: 0;
+    -webkit-transform: translate3d(0, 0, 0);
+            transform: translate3d(0, 0, 0);
+  }
+}
+.carousel-inner > .active,
+.carousel-inner > .next,
+.carousel-inner > .prev {
+  display: block;
+}
+.carousel-inner > .active {
+  left: 0;
+}
+.carousel-inner > .next,
+.carousel-inner > .prev {
+  position: absolute;
+  top: 0;
+  width: 100%;
+}
+.carousel-inner > .next {
+  left: 100%;
+}
+.carousel-inner > .prev {
+  left: -100%;
+}
+.carousel-inner > .next.left,
+.carousel-inner > .prev.right {
+  left: 0;
+}
+.carousel-inner > .active.left {
+  left: -100%;
+}
+.carousel-inner > .active.right {
+  left: 100%;
+}
+.carousel-control {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  left: 0;
+  width: 15%;
+  font-size: 20px;
+  color: #fff;
+  text-align: center;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
+  background-color: rgba(0, 0, 0, 0);
+  filter: alpha(opacity=50);
+  opacity: .5;
+}
+.carousel-control.left {
+  background-image: -webkit-linear-gradient(left, rgba(0, 0, 0, .5) 0%, rgba(0, 0, 0, .0001) 100%);
+  background-image:      -o-linear-gradient(left, rgba(0, 0, 0, .5) 0%, rgba(0, 0, 0, .0001) 100%);
+  background-image: -webkit-gradient(linear, left top, right top, from(rgba(0, 0, 0, .5)), to(rgba(0, 0, 0, .0001)));
+  background-image:         linear-gradient(to right, rgba(0, 0, 0, .5) 0%, rgba(0, 0, 0, .0001) 100%);
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#80000000', endColorstr='#00000000', GradientType=1);
+  background-repeat: repeat-x;
+}
+.carousel-control.right {
+  right: 0;
+  left: auto;
+  background-image: -webkit-linear-gradient(left, rgba(0, 0, 0, .0001) 0%, rgba(0, 0, 0, .5) 100%);
+  background-image:      -o-linear-gradient(left, rgba(0, 0, 0, .0001) 0%, rgba(0, 0, 0, .5) 100%);
+  background-image: -webkit-gradient(linear, left top, right top, from(rgba(0, 0, 0, .0001)), to(rgba(0, 0, 0, .5)));
+  background-image:         linear-gradient(to right, rgba(0, 0, 0, .0001) 0%, rgba(0, 0, 0, .5) 100%);
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00000000', endColorstr='#80000000', GradientType=1);
+  background-repeat: repeat-x;
+}
+.carousel-control:hover,
+.carousel-control:focus {
+  color: #fff;
+  text-decoration: none;
+  filter: alpha(opacity=90);
+  outline: 0;
+  opacity: .9;
+}
+.carousel-control .icon-prev,
+.carousel-control .icon-next,
+.carousel-control .glyphicon-chevron-left,
+.carousel-control .glyphicon-chevron-right {
+  position: absolute;
+  top: 50%;
+  z-index: 5;
+  display: inline-block;
+  margin-top: -10px;
+}
+.carousel-control .icon-prev,
+.carousel-control .glyphicon-chevron-left {
+  left: 50%;
+  margin-left: -10px;
+}
+.carousel-control .icon-next,
+.carousel-control .glyphicon-chevron-right {
+  right: 50%;
+  margin-right: -10px;
+}
+.carousel-control .icon-prev,
+.carousel-control .icon-next {
+  width: 20px;
+  height: 20px;
+  font-family: serif;
+  line-height: 1;
+}
+.carousel-control .icon-prev:before {
+  content: '\2039';
+}
+.carousel-control .icon-next:before {
+  content: '\203a';
+}
+.carousel-indicators {
+  position: absolute;
+  bottom: 10px;
+  left: 50%;
+  z-index: 15;
+  width: 60%;
+  padding-left: 0;
+  margin-left: -30%;
+  text-align: center;
+  list-style: none;
+}
+.carousel-indicators li {
+  display: inline-block;
+  width: 10px;
+  height: 10px;
+  margin: 1px;
+  text-indent: -999px;
+  cursor: pointer;
+  background-color: #000 \9;
+  background-color: rgba(0, 0, 0, 0);
+  border: 1px solid #fff;
+  border-radius: 10px;
+}
+.carousel-indicators .active {
+  width: 12px;
+  height: 12px;
+  margin: 0;
+  background-color: #fff;
+}
+.carousel-caption {
+  position: absolute;
+  right: 15%;
+  bottom: 20px;
+  left: 15%;
+  z-index: 10;
+  padding-top: 20px;
+  padding-bottom: 20px;
+  color: #fff;
+  text-align: center;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, .6);
+}
+.carousel-caption .btn {
+  text-shadow: none;
+}
+@media screen and (min-width: 768px) {
+  .carousel-control .glyphicon-chevron-left,
+  .carousel-control .glyphicon-chevron-right,
+  .carousel-control .icon-prev,
+  .carousel-control .icon-next {
+    width: 30px;
+    height: 30px;
+    margin-top: -10px;
+    font-size: 30px;
+  }
+  .carousel-control .glyphicon-chevron-left,
+  .carousel-control .icon-prev {
+    margin-left: -10px;
+  }
+  .carousel-control .glyphicon-chevron-right,
+  .carousel-control .icon-next {
+    margin-right: -10px;
+  }
+  .carousel-caption {
+    right: 20%;
+    left: 20%;
+    padding-bottom: 30px;
+  }
+  .carousel-indicators {
+    bottom: 20px;
+  }
+}
+.clearfix:before,
+.clearfix:after,
+.dl-horizontal dd:before,
+.dl-horizontal dd:after,
+.container:before,
+.container:after,
+.container-fluid:before,
+.container-fluid:after,
+.row:before,
+.row:after,
+.form-horizontal .form-group:before,
+.form-horizontal .form-group:after,
+.btn-toolbar:before,
+.btn-toolbar:after,
+.btn-group-vertical > .btn-group:before,
+.btn-group-vertical > .btn-group:after,
+.nav:before,
+.nav:after,
+.navbar:before,
+.navbar:after,
+.navbar-header:before,
+.navbar-header:after,
+.navbar-collapse:before,
+.navbar-collapse:after,
+.pager:before,
+.pager:after,
+.panel-body:before,
+.panel-body:after,
+.modal-header:before,
+.modal-header:after,
+.modal-footer:before,
+.modal-footer:after {
+  display: table;
+  content: " ";
+}
+.clearfix:after,
+.dl-horizontal dd:after,
+.container:after,
+.container-fluid:after,
+.row:after,
+.form-horizontal .form-group:after,
+.btn-toolbar:after,
+.btn-group-vertical > .btn-group:after,
+.nav:after,
+.navbar:after,
+.navbar-header:after,
+.navbar-collapse:after,
+.pager:after,
+.panel-body:after,
+.modal-header:after,
+.modal-footer:after {
+  clear: both;
+}
+.center-block {
+  display: block;
+  margin-right: auto;
+  margin-left: auto;
+}
+.pull-right {
+  float: right !important;
+}
+.pull-left {
+  float: left !important;
+}
+.hide {
+  display: none !important;
+}
+.show {
+  display: block !important;
+}
+.invisible {
+  visibility: hidden;
+}
+.text-hide {
+  font: 0/0 a;
+  color: transparent;
+  text-shadow: none;
+  background-color: transparent;
+  border: 0;
+}
+.hidden {
+  display: none !important;
+}
+.affix {
+  position: fixed;
+}
+@-ms-viewport {
+  width: device-width;
+}
+.visible-xs,
+.visible-sm,
+.visible-md,
+.visible-lg {
+  display: none !important;
+}
+.visible-xs-block,
+.visible-xs-inline,
+.visible-xs-inline-block,
+.visible-sm-block,
+.visible-sm-inline,
+.visible-sm-inline-block,
+.visible-md-block,
+.visible-md-inline,
+.visible-md-inline-block,
+.visible-lg-block,
+.visible-lg-inline,
+.visible-lg-inline-block {
+  display: none !important;
+}
+@media (max-width: 767px) {
+  .visible-xs {
+    display: block !important;
+  }
+  table.visible-xs {
+    display: table !important;
+  }
+  tr.visible-xs {
+    display: table-row !important;
+  }
+  th.visible-xs,
+  td.visible-xs {
+    display: table-cell !important;
+  }
+}
+@media (max-width: 767px) {
+  .visible-xs-block {
+    display: block !important;
+  }
+}
+@media (max-width: 767px) {
+  .visible-xs-inline {
+    display: inline !important;
+  }
+}
+@media (max-width: 767px) {
+  .visible-xs-inline-block {
+    display: inline-block !important;
+  }
+}
+@media (min-width: 768px) and (max-width: 991px) {
+  .visible-sm {
+    display: block !important;
+  }
+  table.visible-sm {
+    display: table !important;
+  }
+  tr.visible-sm {
+    display: table-row !important;
+  }
+  th.visible-sm,
+  td.visible-sm {
+    display: table-cell !important;
+  }
+}
+@media (min-width: 768px) and (max-width: 991px) {
+  .visible-sm-block {
+    display: block !important;
+  }
+}
+@media (min-width: 768px) and (max-width: 991px) {
+  .visible-sm-inline {
+    display: inline !important;
+  }
+}
+@media (min-width: 768px) and (max-width: 991px) {
+  .visible-sm-inline-block {
+    display: inline-block !important;
+  }
+}
+@media (min-width: 992px) and (max-width: 1199px) {
+  .visible-md {
+    display: block !important;
+  }
+  table.visible-md {
+    display: table !important;
+  }
+  tr.visible-md {
+    display: table-row !important;
+  }
+  th.visible-md,
+  td.visible-md {
+    display: table-cell !important;
+  }
+}
+@media (min-width: 992px) and (max-width: 1199px) {
+  .visible-md-block {
+    display: block !important;
+  }
+}
+@media (min-width: 992px) and (max-width: 1199px) {
+  .visible-md-inline {
+    display: inline !important;
+  }
+}
+@media (min-width: 992px) and (max-width: 1199px) {
+  .visible-md-inline-block {
+    display: inline-block !important;
+  }
+}
+@media (min-width: 1200px) {
+  .visible-lg {
+    display: block !important;
+  }
+  table.visible-lg {
+    display: table !important;
+  }
+  tr.visible-lg {
+    display: table-row !important;
+  }
+  th.visible-lg,
+  td.visible-lg {
+    display: table-cell !important;
+  }
+}
+@media (min-width: 1200px) {
+  .visible-lg-block {
+    display: block !important;
+  }
+}
+@media (min-width: 1200px) {
+  .visible-lg-inline {
+    display: inline !important;
+  }
+}
+@media (min-width: 1200px) {
+  .visible-lg-inline-block {
+    display: inline-block !important;
+  }
+}
+@media (max-width: 767px) {
+  .hidden-xs {
+    display: none !important;
+  }
+}
+@media (min-width: 768px) and (max-width: 991px) {
+  .hidden-sm {
+    display: none !important;
+  }
+}
+@media (min-width: 992px) and (max-width: 1199px) {
+  .hidden-md {
+    display: none !important;
+  }
+}
+@media (min-width: 1200px) {
+  .hidden-lg {
+    display: none !important;
+  }
+}
+.visible-print {
+  display: none !important;
+}
+@media print {
+  .visible-print {
+    display: block !important;
+  }
+  table.visible-print {
+    display: table !important;
+  }
+  tr.visible-print {
+    display: table-row !important;
+  }
+  th.visible-print,
+  td.visible-print {
+    display: table-cell !important;
+  }
+}
+.visible-print-block {
+  display: none !important;
+}
+@media print {
+  .visible-print-block {
+    display: block !important;
+  }
+}
+.visible-print-inline {
+  display: none !important;
+}
+@media print {
+  .visible-print-inline {
+    display: inline !important;
+  }
+}
+.visible-print-inline-block {
+  display: none !important;
+}
+@media print {
+  .visible-print-inline-block {
+    display: inline-block !important;
+  }
+}
+@media print {
+  .hidden-print {
+    display: none !important;
+  }
+}
+/*# sourceMappingURL=bootstrap.css.map */
+</style>
+        <style>body {
+    padding-bottom: 32px;
+}
+.form-control[readonly] {
+    cursor: text;
+}
+.feedback-container {
+    position: fixed;
+    top: 0;
+    width: 100%;
+    text-align: center;
+    z-index: 4;
+}
+.feedback {
+    display: table;
+    padding: 0.5em 1em;
+    background-color: orange;
+    margin: 0 auto;
+    font-size: 2em;
+    color: #444;
+    border: 2px solid #555;
+    border-top: 0;
+    border-bottom-left-radius: 20px 20px;
+    border-bottom-right-radius: 20px 20px;
+}
+.no-border {
+    border: 0;
+    box-shadow: inset 0 1px 1px rgba(0,0,0,.0);
+    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.0);
+}
+.phrase {
+    word-break: keep-all;
+}
+.generate-container .strength {
+    /* override mobile width from bootstrap */
+    width: auto!important;
+    display: inline-block;
+}
+.languages a {
+    padding-left: 10px;
+}
+.languages a:nth-of-type(1) {
+    margin-left: -12px;
+    padding-left: 0;
+}
+.monospace {
+    font-family: monospace;
+}
+.entropy-container .filtered,
+.entropy-container .binary {
+    word-wrap: break-word;
+}
+.entropy-container li {
+    padding-bottom: 5px;
+}
+.card-suit {
+    font-size: 19px;
+    line-height: 0;
+}
+.card-suit.club {
+    color: #009F00;
+}
+.card-suit.diamond {
+    color: #3D5DC4;
+}
+.card-suit.heart {
+    color: #F00;
+}
+.card-suit.spade {
+    color: #000;
+}
+.qr-container {
+    position: fixed;
+    top: 0;
+    right: 0;
+    text-align: center;
+    background-color: #FFF;
+    border: 1px solid #CCC;
+}
+.qr-image {
+    margin: 5px;
+}
+.qr-hint,
+.qr-warning {
+    padding: 2px;
+    max-width: 320px;
+}
+.more-info {
+    cursor: help;
+    border-bottom: 1px dashed #000;
+    text-decoration: none;
+}
+.version {
+    position: absolute;
+    top: 5px;
+    right: 5px;
+}
+.csv {
+    margin-top: 20px;
+    margin-bottom: 20px;
+    white-space: pre;
+    overflow-wrap: normal;
+    overflow-x: scroll;
+    font-family: monospace;
+}
+</style>
         <meta content="Mnemonic code for generating deterministic keys" name="description"/>
         <meta content="width=device-width, initial-scale=1.0" name="viewport" />
         <meta content="bitcoin mnemonic converter" name="description" />
         <meta content="Ian Coleman" name="author" />
         <link type="image/x-icon" rel="icon" href="data:image/x-icon;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQEAYAAABPYyMiAAAABmJLR0T///////8JWPfcAAAACXBIWXMAAABIAAAASABGyWs+AAAAF0lEQVRIx2NgGAWjYBSMglEwCkbBSAcACBAAAeaR9cIAAAAASUVORK5CYII=" />
+    </head>
+    <body>
+        <div class="container">
+
+            <h1 class="text-center">Mnemonic Code Converter</h1>
+            <p class="version">v0.3.2</p>
+            <hr>
+            <div class="row">
+                <div class="col-md-12">
+                    <h2>Mnemonic</h2>
+                    <form class="form-horizontal" role="form">
+                        <div class="form-group">
+                            <div class="col-sm-2"></div>
+                            <div class="col-sm-10">
+                                <p>You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word is a checksum).</p>
+                                <p>
+                                    For more info see the
+                                    <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" target="_blank">BIP39 spec</a>.
+                                </p>
+                            </div>
+                        </div>
+                        <div class="form-group generate-container">
+                            <label class="col-sm-2 control-label"></label>
+                            <div class="col-sm-10">
+                                <div class="form-inline">
+                                    <div class="input-group-inline">
+                                        <span>Generate a random mnemonic, or enter your own below</span>:
+                                        <button class="btn generate">Generate</button>
+                                        <select id="strength" class="strength form-control">
+                                            <option value="3">3</option>
+                                            <option value="6">6</option>
+                                            <option value="9">9</option>
+                                            <option value="12">12</option>
+                                            <option value="15" selected>15</option>
+                                            <option value="18">18</option>
+                                            <option value="21">21</option>
+                                            <option value="24">24</option>
+                                        </select>
+                                        <span>words</span>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="entropy-container hidden">
+                            <div class="form-group text-danger">
+                                <label class="col-sm-2 control-label">Warning</label>
+                                <div class="col-sm-10 form-control-static">
+                                    <span>Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.</span>
+                                    <a href="#entropy-notes">Read more</a>
+                                </div>
+                            </div>
+                            <div class="form-group">
+                                <label for="entropy" class="col-sm-2 control-label">Entropy</label>
+                                <div class="col-sm-7">
+                                    <textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts either binary, base 6, 6-sided dice, base 10, hexadecimal or cards"></textarea>
+                                    <div class="row filter-warning text-danger hidden">
+                                        <p class="col-sm-12">
+                                        <strong>
+                                        Some characters have been discarded
+                                        </strong>
+                                        </p>
+                                    </div>
+                                    <div class="row">
+                                        <label class="col-sm-3 control-label"><span class="more-info" title="Based on estimates from zxcvbn using Filtered Entropy">Time To Crack</span></label>
+                                        <div class="crack-time col-sm-3 form-control-static"></div>
+                                        <label class="col-sm-3 control-label">Event Count</label>
+                                        <div class="event-count col-sm-3 form-control-static"></div>
+                                    </div>
+                                    <div class="row">
+                                        <label class="col-sm-3 control-label">Entropy Type</label>
+                                        <div class="type col-sm-3 form-control-static"></div>
+                                        <label class="col-sm-3 control-label">Bits Per Event</label>
+                                        <div class="bits-per-event col-sm-3 form-control-static"></div>
+                                    </div>
+                                    <div class="row">
+                                        <label class="col-sm-3 control-label">Raw Entropy Words</label>
+                                        <div class="word-count col-sm-3 form-control-static"></div>
+                                        <label class="col-sm-3 control-label"><span class="more-info" title="Total bits of entropy may be less than indicated if any entropy event uses a weak source.">Total Bits</span></label>
+                                        <div class="bits col-sm-3 form-control-static"></div>
+                                    </div>
+                                    <label class="col-sm-3 control-label">Filtered Entropy</label>
+                                    <div class="filtered col-sm-9 form-control-static"></div>
+                                    <label class="col-sm-3 control-label">Raw Binary</label>
+                                    <div class="binary col-sm-9 form-control-static"></div>
+                                    <label class="col-sm-3 control-label">Word Indexes</label>
+                                    <div class="word-indexes col-sm-9 form-control-static">&nbsp;</div>
+                                    <label class="col-sm-3 control-label">Mnemonic Length</label>
+                                    <div class="col-sm-9">
+                                        <select class="mnemonic-length form-control">
+                                            <option value="raw" selected>Use Raw Entropy (3 words per 32 bits)</option>
+                                            <option value="12">12 <span>Words</span></option>
+                                            <option value="15">15 <span>Words</option>
+                                            <option value="18">18 <span>Words</span></option>
+                                            <option value="21">21 <span>Words</span></option>
+                                            <option value="24">24 <span>Words</span></option>
+                                        </select>
+                                    </div>
+                                </div>
+                                <div class="col-sm-3">
+                                    <p>Valid entropy values include:</p>
+                                    <ul>
+                                        <li><strong>Binary</strong> [0-1]<br>101010011</li>
+                                        <li><strong>Base 6</strong> [0-5]<br>123434014</li>
+                                        <li><strong>Dice</strong> [1-6]<br>62535634</li>
+                                        <li><strong>Base 10</strong> [0-9]<br>90834528</li>
+                                        <li><strong>Hex</strong> [0-9A-F]<br>4187a8bfd9</li>
+                                        <li><strong>Card</strong> [A2-9TJQK][CDHS]<br>ahqs9dtc</li>
+                                    </ul>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <div class="col-sm-2"></div>
+                            <div class="col-sm-10 checkbox">
+                                <label>
+                                    <input type="checkbox" class="use-entropy">
+                                    <span>Show entropy details</span>
+                                </label>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label class="col-sm-2 control-label">Mnemonic Language</label>
+                            <div class="col-sm-10 languages">
+                                <div class="form-control no-border">
+                                    <a href="#english">English</a>
+                                    <a href="#japanese" title="Japanese">日本語</a>
+                                    <a href="#spanish"  title="Spanish">Español</a>
+                                    <a href="#chinese_simplified"  title="Chinese (Simplified)">中文(简体)</a>
+                                    <a href="#chinese_traditional"  title="Chinese (Traditional)">中文(繁體)</a>
+                                    <a href="#french"  title="French">Français</a>
+                                    <a href="#italian"  title="Italian">Italiano</a>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="phrase" class="col-sm-2 control-label">BIP39 Mnemonic</label>
+                            <div class="col-sm-10">
+                                <textarea id="phrase" class="phrase form-control" data-show-qr></textarea>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="passphrase" class="col-sm-2 control-label">BIP39 Passphrase (optional)</label>
+                            <div class="col-sm-10">
+                                <textarea id="passphrase" class="passphrase form-control"></textarea>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="seed" class="col-sm-2 control-label">BIP39 Seed</label>
+                            <div class="col-sm-10">
+                                <textarea id="seed" class="seed form-control" readonly="readonly" data-show-qr></textarea>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="network-phrase" class="col-sm-2 control-label">Coin</label>
+                            <div class="col-sm-10">
+                                <select id="network-phrase" class="network form-control">
+                                    <!-- populated by javascript -->
+                                </select>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="root-key" class="col-sm-2 control-label">BIP32 Root Key</label>
+                            <div class="col-sm-10">
+                                <textarea id="root-key" class="root-key form-control" data-show-qr></textarea>
+                            </div>
+                        </div>
+                        <div class="form-group litecoin-ltub-container hidden">
+                            <label for="litecoin-use-ltub" class="col-sm-2 control-label">Prefixes</label>
+                            <div class="col-sm-10 checkbox">
+                                <label>
+                                    <input type="checkbox" id="litecoin-use-ltub" class="litecoin-use-ltub" checked="checked">
+                                    Use <code>Ltpv / Ltub</code> instead of <code>xprv / xpub</code>
+                                </label>
+                            </div>
+                        </div>
+                    </form>
+                </div>
+            </div>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+                    <h2>Derivation Path</h2>
+                    <ul class="derivation-type nav nav-tabs" role="tablist">
+                        <li id="bip32-tab">
+                            <a href="#bip32" role="tab" data-toggle="tab">BIP32</a>
+                        </li>
+                        <li id="bip44-tab" class="active">
+                            <a href="#bip44" role="tab" data-toggle="tab">BIP44</a>
+                        </li>
+                        <li id="bip49-tab">
+                            <a href="#bip49" role="tab" data-toggle="tab">BIP49</a>
+                        </li>
+                        <li id="bip84-tab">
+                            <a href="#bip84" role="tab" data-toggle="tab">BIP84</a>
+                        </li>
+                        <li id="bip141-tab">
+                            <a href="#bip141" role="tab" data-toggle="tab">BIP141</a>
+                        </li>
+                    </ul>
+                    <div class="derivation-type tab-content">
+                        <div id="bip44" class="tab-pane active">
+                            <form class="form-horizontal" role="form">
+                                <br>
+                                <div class="col-sm-2"></div>
+                                <div class="col-sm-10">
+                                    <p>
+                                        For more info see the
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">BIP44 spec</a>.
+                                    </p>
+                                </div>
+                                <div class="form-group">
+                                    <label for="purpose" class="col-sm-2 control-label">
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank">Purpose</a>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="purpose" type="text" class="purpose form-control" value="44" readonly>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="coin" class="col-sm-2 control-label">
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank">Coin</a>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="coin" type="text" class="coin form-control" value="0" readonly>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account" class="col-sm-2 control-label">
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank">Account</a>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="account" type="text" class="account form-control" value="0">
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="change" class="col-sm-2 control-label">
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank">External / Internal</a>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="change" type="text" class="change form-control" value="0">
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p>The account extended keys can be used for importing to most BIP44 compatible wallets, such as mycelium or electrum.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xprv" class="col-sm-2 control-label">
+                                        <span>Account Extended Private Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xpub" class="col-sm-2 control-label">
+                                        <span>Account Extended Public Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="bip44-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                    <div class="col-sm-10">
+                                        <input id="bip44-path" type="text" class="path form-control" value="m/44'/0'/0'/0" readonly="readonly">
+                                    </div>
+                                </div>
+                            </form>
+                        </div>
+                        <div id="bip32" class="tab-pane">
+                            <form class="form-horizontal" role="form">
+                                <br>
+                                <div class="col-sm-2"></div>
+                                <div class="col-sm-10">
+                                    <p>
+                                        For more info see the
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">BIP32 spec</a>
+                                    </p>
+                                </div>
+                                <div class="form-group">
+                                    <label for="bip32-client" class="col-sm-2 control-label">Client</label>
+                                    <div class="col-sm-10">
+                                        <select id="bip32-client" class="client form-control">
+                                            <option value="custom">Custom derivation path</option>
+                                            <!-- populated by javascript -->
+                                        </select>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="bip32-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                    <div class="col-sm-10">
+                                        <input id="bip32-path" type="text" class="path form-control" value="m/0">
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <div class="col-sm-2"></div>
+                                    <label class="col-sm-10">
+                                        <input class="hardened-addresses" type="checkbox">
+                                        <span>Use hardened addresses</span>
+                                    </label>
+                                </div>
+                                <div class="form-group">
+                                    <label for="core-path" class="col-sm-2 control-label">Bitcoin Core</label>
+                                    <div class="col-sm-10">
+                                        <p class="form-control no-border">
+                                        Use path <code>m/0'/0'</code> with hardened addresses.
+                                        </p>
+                                        <p class="form-control no-border">
+                                            For more info see the
+                                            <a href="https://github.com/bitcoin/bitcoin/pull/8035" target="_blank">Bitcoin Core BIP32 implementation</a>
+                                        </p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="core-path" class="col-sm-2 control-label">Multibit</label>
+                                    <div class="col-sm-10">
+                                        <p class="form-control no-border">
+                                            <span>Use path <code>m/0'/0</code>.</span>
+                                        </p>
+                                        <p class="form-control no-border">
+                                            <span>For more info see</span>
+                                            <a href="https://multibit.org/" target="_blank">MultiBit HD</a>
+                                        </p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">Block Explorers</label>
+                                    <div class="col-sm-10">
+                                        <p class="form-control no-border">
+                                            <span>Use path <code>m/44'/0'/0'</code>.</span>
+                                            <span>Only enter the <code>xpub</code> extended key into block explorer search fields, never the <code>xprv</code> key.</span>
+                                        </p>
+                                        <p class="form-control no-border">
+                                            <span>Can be used with</span>:
+                                            <a href="https://blockchain.info/" target="_blank">blockchain.info</a>
+                                        </p>
+                                    </div>
+                                </div>
+                            </form>
+                        </div>
+                        <div id="bip49" class="tab-pane">
+                            <form class="form-horizontal" role="form">
+                                <br>
+                                <div class="unavailable hidden">
+                                    <div class="form-group">
+                                        <div class="col-sm-2"></div>
+                                        <div class="col-sm-10">
+                                            <p>BIP49 is unavailable for this coin.</p>
+                                        </div>
+                                    </div>
+                                </div>
+                                <div class="available">
+                                    <div class="col-sm-2"></div>
+                                    <div class="col-sm-10">
+                                        <p>
+                                            For more info see the
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki" target="_blank">BIP49 spec</a>.
+                                        </p>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="purpose" class="col-sm-2 control-label">
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank">Purpose</a>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="purpose" type="text" class="purpose form-control" value="49" readonly>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="coin" class="col-sm-2 control-label">
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank">Coin</a>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="coin" type="text" class="coin form-control" value="0" readonly>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="account" class="col-sm-2 control-label">
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank">Account</a>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="account" type="text" class="account form-control" value="0">
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="change" class="col-sm-2 control-label">
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank">External / Internal</a>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <input id="change" type="text" class="change form-control" value="0">
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label class="col-sm-2 control-label">
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <p>The account extended keys can be used for importing to most BIP49 compatible wallets.</p>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="account-xprv" class="col-sm-2 control-label">
+                                            <span>Account Extended Private Key</span>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="account-xpub" class="col-sm-2 control-label">
+                                            <span>Account Extended Public Key</span>
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label class="col-sm-2 control-label">
+                                        </label>
+                                        <div class="col-sm-10">
+                                            <p>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="bip49-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                        <div class="col-sm-10">
+                                            <input id="bip49-path" type="text" class="path form-control" value="m/49'/0'/0'/0" readonly="readonly">
+                                        </div>
+                                    </div>
+                                </div>
+                            </form>
+                        </div>
+                        <div id="bip141" class="tab-pane">
+                            <form class="form-horizontal" role="form">
+                                <br>
+                                <div class="unavailable hidden">
+                                    <div class="form-group">
+                                        <div class="col-sm-2"></div>
+                                        <div class="col-sm-10">
+                                            <p>BIP141 is unavailable for this coin.</p>
+                                        </div>
+                                    </div>
+                                </div>
+                                <div class="available">
+                                    <div class="col-sm-2"></div>
+                                    <div class="col-sm-10">
+                                        <p>
+                                            For more info see the
+                                            <a href="https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki" target="_blank">BIP141 spec</a>
+                                        </p>
+                                    </div>
+                                    <div class="form-group">
+                                        <label for="bip141-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                        <div class="col-sm-10">
+                                            <input id="bip141-path" type="text" class="bip141-path form-control" value="m/0">
+                                        </div>
+                                    </div>
+                                    <div class="form-group">
+                                        <label class="col-sm-2 control-label">Script Semantics</label>
+                                        <div class="col-sm-10">
+                                            <select class="form-control bip141-semantics">
+                                                <option value="p2wpkh">P2WPKH</option>
+                                                <option value="p2wpkh-p2sh" selected>P2WPKH nested in P2SH</option>
+                                            </select>
+                                        </div>
+                                    </div>
+                                </div>
+                            </form>
+                        </div>
+                        <div id="bip84" class="tab-pane">
+                            <form class="form-horizontal" role="form">
+                                <br>
+                                <div class="col-sm-2"></div>
+                                <div class="col-sm-10">
+                                    <p>
+                                        For more info see the
+                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki" target="_blank">BIP84 spec</a>.
+                                    </p>
+                                </div>
+                                <div class="form-group">
+                                    <label for="purpose" class="col-sm-2 control-label">
+                                        Purpose
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="purpose" type="text" class="purpose form-control" value="84" readonly>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="coin" class="col-sm-2 control-label">
+                                        Coin
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="coin" type="text" class="coin form-control" value="0" readonly>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account" class="col-sm-2 control-label">
+                                        Account
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="account" type="text" class="account form-control" value="0">
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="change" class="col-sm-2 control-label">
+                                        External / Internal
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <input id="change" type="text" class="change form-control" value="0">
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p>The account extended keys can be used for importing to most BIP84 compatible wallets.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xprv" class="col-sm-2 control-label">
+                                        <span>Account Extended Private Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xpub" class="col-sm-2 control-label">
+                                        <span>Account Extended Public Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="bip84-path" class="col-sm-2 control-label">BIP32 Derivation Path</label>
+                                    <div class="col-sm-10">
+                                        <input id="bip84-path" type="text" class="path form-control" value="m/84'/0'/0'/0" readonly="readonly">
+                                    </div>
+                                </div>
+                            </form>
+                        </div>
+                    </div>
+                    <form class="form-horizontal" role="form">
+                        <div class="form-group">
+                            <label for="extended-priv-key" class="col-sm-2 control-label">BIP32 Extended Private Key</label>
+                            <div class="col-sm-10">
+                                <textarea id="extended-priv-key" class="extended-priv-key form-control" readonly="readonly" data-show-qr></textarea>
+                            </div>
+                        </div>
+                        <div class="form-group">
+                            <label for="extended-pub-key" class="col-sm-2 control-label">BIP32 Extended Public Key</label>
+                            <div class="col-sm-10">
+                                <textarea id="extended-pub-key" class="extended-pub-key form-control" readonly="readonly" data-show-qr></textarea>
+                            </div>
+                        </div>
+                    </form>
+                </div>
+            </div>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+                    <h2>Derived Addresses</h2>
+                    <p>Note these addresses are derived from the BIP32 Extended Key</p>
+                </div>
+                <div class="col-md-12 use-bitpay-addresses-container hidden">
+                    <div class="checkbox">
+                        <label>
+                            <input type="checkbox" class="use-bitpay-addresses">
+                            <span>Use BitPay-style addresses for Bitcoin Cash (ie starting with 'C' instead of '1')</span>
+                        </label>
+                    </div>
+                </div>
+                <ul class="addresses-type nav nav-tabs" role="tablist">
+                    <li id="table-tab" class="active">
+                        <a href="#table" role="tab" data-toggle="tab">Table</a>
+                    </li>
+                    <li id="csv-tab">
+                        <a href="#csv" role="tab" data-toggle="tab">CSV</a>
+                    </li>
+                </ul>
+                <div class="addresses-type tab-content">
+                    <div id="table" class="tab-pane active">
+                        <div class="col-md-12">
+                            <table class="table table-striped">
+                                <thead>
+                                    <th>
+                                        <div class="input-group">
+                                            <span>Path</span>&nbsp;&nbsp;
+                                            <button class="index-toggle">Toggle</button>
+                                        </div>
+                                    </th>
+                                    <th>
+                                        <div class="input-group">
+                                            <span>Address</span>&nbsp;&nbsp;
+                                            <button class="address-toggle">Toggle</button>
+                                        </div>
+                                    </th>
+                                    <th>
+                                        <div class="input-group">
+                                            <span>Public Key</span>&nbsp;&nbsp;
+                                            <button class="public-key-toggle">Toggle</button>
+                                        </div>
+                                    </th>
+                                    <th>
+                                        <div class="input-group">
+                                            <span>Private Key</span>&nbsp;&nbsp;
+                                            <button class="private-key-toggle">Toggle</button>
+                                        </div>
+                                    </th>
+                                </thead>
+                                <tbody class="addresses monospace">
+                                    <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+                                    <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+                                    <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+                                    <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+                                    <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+                                </tbody>
+                            </table>
+                        </div>
+                    </div>
+                    <div id="csv" class="tab-pane">
+                        <div class="col-md-12">
+                            <textarea class="csv form-control" rows="25" readonly></textarea>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <span>Show</span>
+            <input type="number" class="rows-to-add" value="20">
+            <button class="more">more rows</button>
+            <span>starting from index</span>
+            <input type="number" class="more-rows-start-index">
+            <span>(leave blank to generate from next index)</span>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+                    <h2>More info</h2>
+                    <h3>BIP39 <span class="small">Mnemonic code for generating deterministic keys</span></h3>
+                    <p>
+                        Read more at the
+                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki">official BIP39 spec</a>
+                    </p>
+                    <h3>BIP32 <span class="small">Hierarchical Deterministic Wallets</span></h3>
+                    <p>
+                        Read more at the
+                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">official BIP32 spec</a>
+                    </p>
+                    <p>
+                        See the demo at
+                        <a href="http://bip32.org/" target="_blank">bip32.org</a>
+                    </p>
+                    <h3>BIP44 <span class="small">Multi-Account Hierarchy for Deterministic Wallets</span></h3>
+                    <p>
+                        Read more at the
+                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">official BIP44 spec</a>
+                    </p>
+                    <h3>BIP49 <span class="small">Derivation scheme for P2WPKH-nested-in-P2SH based accounts</span></h3>
+                    <p>
+                        Read more at the
+                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki" target="_blank">official BIP49 spec</a>
+                    </p>
+                    <h3>Private Keys</h3>
+                    <p>
+                        <span>
+                            Use private keys at
+                            <a href="https://web.archive.org/web/20150707020924/https://brainwallet.org/" target="_blank">brainwallet.org</a>.
+                        </span>
+                        <span>Be careful - it can be easy to make mistakes if you don't know what you're doing.</span>
+                    </p>
+                    <h3 id="entropy-notes">Entropy</h3>
+                    <p>
+                        <span>
+                            Entropy values must be sourced from a
+                            <a href="https://en.wikipedia.org/wiki/Random_number_generation" target="_blank">strong source of randomness</a>.
+                        </span>
+                        <span>This means flipping a fair coin, rolling a fair dice, noise measurements etc.</span>
+                        <span>
+                            Do <strong>NOT</strong> use phrases from books, lyrics from songs, your birthday or street address,
+                            keyboard mashing, or anything you <i>think</i> is random, because chances are overwhelming it isn't
+                            random enough for the needs of this tool.
+                        </span>
+                    </p>
+                    <p>
+                        <strong><span>Do not store entropy.</span></strong>
+                    </p>
+                    <p>
+                        <span>Storing entropy (such as keeping a deck of cards in a specific shuffled order) is unreliable compared to storing a mnemonic.</span>
+                        <span>Instead of storing entropy, store the mnemonic generated from the entropy.</span>
+                        <span><a href="https://en.wikipedia.org/wiki/Steganography#Physical" target="_blank">Steganography</a> may be beneficial when storing the mnemonic.</span>
+                    </p>
+                    <p>
+                        <span>
+                            The random mnemonic generator on this page uses a
+                            <a href="https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues" target="_blank">cryptographically secure random number generator</a>.
+                        </span>
+                        <span>The built in random generator can generally be trusted more than your own intuition about randomness.</span>
+                        <span>If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work.</span>
+                        <span>In that case you might choose to use your own source of entropy.</span>
+                    </p>
+                    <p>
+                        <a href="https://bitcointalk.org/index.php?topic=311000.msg3345309#msg3345309" target="_blank">You are not a good source of entropy.</a>
+                    </p>
+                    <h3>License</h3>
+                    <p>
+                    <span>Please refer to <a href="https://github.com/iancoleman/bip39/blob/master/LICENSE" target="_blank">the software license</a> for more detail.
+                    </span>
+                    </p>
+                    <p>The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.</p>
+                </div>
+            </div>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+                    <h2>Alternative Tools</h2>
+                    <p>This tool is interoperable with any BIP39 wallet.</p>
+                    <p>Some similar tools to this one (ie not consumer wallets) are</p>
+                    <p>
+                        <a href="https://bip32jp.github.io/english/">
+                            https://bip32jp.github.io/english/
+                        </a>
+                    </p>
+                </div>
+            </div>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+
+                    <h2>Offline Usage</h2>
+
+                    <p>
+                    You can use this tool without having to be online.
+                    </p>
+                    <p>
+                    In your browser, select file save-as, and save this page
+                    as a file.
+                    </p>
+                    <p>
+                    Double-click that file to open it in a browser
+                    on any offline computer.
+                    </p>
+                    <p>
+                    <span>Alternatively, download the file from the repository</span>
+                    -
+                    <a href="https://github.com/iancoleman/bip39">https://github.com/iancoleman/bip39</a>
+                    </p>
+
+                </div>
+            </div>
+
+            <hr>
+
+            <div class="row">
+                <div class="col-md-12">
+
+                    <h2>This project is 100% open-source code</h2>
+
+                    <p>
+                        <span>Get the source code from the repository</span>
+                        -
+                        <a href="https://github.com/iancoleman/bip39" target="_blank">
+                            https://github.com/iancoleman/bip39
+                        </a>
+                    </p>
+
+                    <h3>Libraries</h3>
+
+                    <p>
+                        <span>BitcoinJS - </span>
+                        <a href="https://github.com/bitcoinjs/bitcoinjs-lib" target="_blank">
+                            https://github.com/bitcoinjs/bitcoinjs-lib
+                        </a>
+                    </p>
+
+                    <p>
+                        <span>jsBIP39 - </span>
+                        <a href="https://github.com/iancoleman/jsbip39" target="_blank">
+                            https://github.com/iancoleman/jsbip39
+                        </a>
+                    </p>
+
+                    <p>
+                        <span>sjcl - </span>
+                        <a href="https://github.com/bitwiseshiftleft/sjcl" target="_blank">
+                            https://github.com/bitwiseshiftleft/sjcl
+                        </a>
+                    </p>
+
+                    <p>
+                        <span>jQuery - </span>
+                        <a href="https://jquery.com/" target="_blank">
+                            https://jquery.com/
+                        </a>
+                    </p>
+
+                    <p>
+                        <span>Twitter Bootstrap - </span>
+                        <a href="http://getbootstrap.com/" target="_blank">
+                            http://getbootstrap.com/
+                        </a>
+                    </p>
+
+                </div>
+            </div>
+
+        </div>
+
+        <div class="qr-container hidden">
+            <div class="qr-hint bg-primary hidden">Click field to hide QR</div>
+            <div class="qr-hint bg-primary">Click field to show QR</div>
+            <div class="qr-hider hidden">
+                <div class="qr-image"></div>
+                <div class="qr-warning bg-primary">Caution: Scanner may keep history</div>
+            </div>
+        </div>
+
+        <div class="feedback-container">
+            <div class="feedback">Loading...</div>
+        </div>
+
+        <script type="text/template" id="address-row-template">
+            <tr>
+                <td class="index"><span></span></td>
+                <td class="address"><span data-show-qr></span></td>
+                <td class="pubkey"><span data-show-qr></span></td>
+                <td class="privkey"><span data-show-qr></span></td>
+            </tr>
+        </script>
+        <script>// From
+// https://raw.githubusercontent.com/inexorabletash/polyfill/a6bc6ced78160c994f76a909b6ff6bbbab3d43de/es6.js
+// Required for ethereumjs-utils.js when run in phantomjs-2.1.1
+// but is not required in any modern browsers.
+// For more information, see
+// https://www.bountysource.com/issues/38485709-error-rendering-plot-with-phantomjs
+
+//----------------------------------------------------------------------
+//
+// ECMAScript 2015 Polyfills
+//
+//----------------------------------------------------------------------
+
+(function (global) {
+  "use strict";
+
+  // Set this to always override native implementations, for testing
+  // the polyfill in browsers with partial/full ES2015 support.
+  var OVERRIDE_NATIVE_FOR_TESTING = false;
+
+  var undefined = (void 0); // Paranoia
+
+  // Helpers
+
+  function strict(o) {
+    return o === global ? undefined : o;
+  }
+
+  function hook(o, p, f) {
+    var op = o[p];
+    console.assert(typeof op === 'function', 'Hooking a non-function');
+    o[p] = function() {
+      var o = strict(this);
+      var r = f.apply(o, arguments);
+      return r !== undefined ? r : op.apply(o, arguments);
+    };
+  }
+
+  function isSymbol(s) {
+    return (typeof s === 'symbol') || ('Symbol' in global && s instanceof global.Symbol);
+  }
+
+  function getPropertyDescriptor(target, name) {
+    var desc = Object.getOwnPropertyDescriptor(target, name);
+    var proto = Object.getPrototypeOf(target);
+    while (!desc && proto) {
+      desc = Object.getOwnPropertyDescriptor(proto, name);
+      proto = Object.getPrototypeOf(proto);
+    }
+    return desc;
+  }
+
+  var enqueue = (function(nativePromise, nativeSetImmediate) {
+    if (nativePromise)
+      return function(job) { nativePromise.resolve().then(function() { job(); }); };
+    if (nativeSetImmediate)
+      return function(job) { nativeSetImmediate(job); };
+    return function(job) { setTimeout(job, 0); };
+  }(global['Promise'], global['setImmediate']));
+
+  function define(o, p, v, override) {
+    if (p in o && !override && !OVERRIDE_NATIVE_FOR_TESTING)
+      return;
+
+    if (typeof v === 'function') {
+      // Sanity check that functions are appropriately named (where possible)
+      console.assert(isSymbol(p) || !('name' in v) || v.name === p || v.name === p + '_', 'Expected function name "' + p.toString() + '", was "' + v.name + '"');
+      Object.defineProperty(o, p, {
+        value: v,
+        configurable: true,
+        enumerable: false,
+        writable: true
+      });
+    } else {
+      Object.defineProperty(o, p, {
+        value: v,
+        configurable: false,
+        enumerable: false,
+        writable: false
+      });
+    }
+  }
+
+  function set_internal(o, p, v) {
+    Object.defineProperty(o, p, {
+      value: v,
+      configurable: false,
+      enumerable: false,
+      writable: true
+    });
+  }
+
+  // Snapshot intrinsic functions
+  var $isNaN = global.isNaN,
+      $parseInt = global.parseInt,
+      $parseFloat = global.parseFloat;
+
+  var E = Math.E,
+      LOG10E = Math.LOG10E,
+      LOG2E = Math.LOG2E,
+      abs = Math.abs,
+      ceil = Math.ceil,
+      exp = Math.exp,
+      floor = Math.floor,
+      log = Math.log,
+      max = Math.max,
+      min = Math.min,
+      pow = Math.pow,
+      random = Math.random,
+      sqrt = Math.sqrt;
+
+  var orig_match = String.prototype.match,
+      orig_replace = String.prototype.replace,
+      orig_search = String.prototype.search,
+      orig_split = String.prototype.split;
+
+  // These are used for implementing the polyfills, but not exported.
+
+  // Inspired by https://gist.github.com/1638059
+  /** @constructor */
+  function EphemeronTable() {
+    var secretKey = ObjectCreate(null);
+
+    function conceal(o) {
+      var oValueOf = o.valueOf, secrets = ObjectCreate(null);
+      Object.defineProperty(o, 'valueOf', {
+          value: (function(secretKey) {
+            return function (k) {
+              return (k === secretKey) ? secrets : oValueOf.apply(o, arguments);
+            };
+          }(secretKey)),
+        configurable: true,
+        writeable: true,
+        enumerable: false
+        });
+      return secrets;
+    }
+
+    function reveal(o) {
+      var v = typeof o.valueOf === 'function' && o.valueOf(secretKey);
+      return v === o ? null : v;
+    }
+
+    return {
+      clear: function() {
+        secretKey = ObjectCreate(null);
+      },
+      remove: function(key) {
+        var secrets = reveal(key);
+        if (secrets && HasOwnProperty(secrets, 'value')) {
+          delete secrets.value;
+          return true;
+        }
+        return false;
+      },
+      get: function(key, defaultValue) {
+        var secrets = reveal(key);
+        return (secrets && HasOwnProperty(secrets, 'value')) ? secrets.value : defaultValue;
+      },
+      has: function(key) {
+        var secrets = reveal(key);
+        return Boolean(secrets && HasOwnProperty(secrets, 'value'));
+      },
+      set: function(key, value) {
+        var secrets = reveal(key) || conceal(key);
+        secrets.value = value;
+      }
+    };
+  }
+
+  var empty = Object.create(null);
+
+  //----------------------------------------------------------------------
+  //
+  // ECMAScript 2015
+  // http://www.ecma-international.org/ecma-262/6.0/
+  //
+  //----------------------------------------------------------------------
+
+  // ---------------------------------------
+  // 19.4 Symbol Objects
+  // ---------------------------------------
+
+  // NOTE: Symbols are defined here - out of spec order - since we need the
+  // properties and prototype to be populated for other polyfills.
+
+  // NOTE: Not secure, nor is obj[$$symbol] hidden from Object.keys()
+
+  var symbolForKey;
+  (function() {
+    var secret = Object.create(null);
+    var symbolMap = {};
+    symbolForKey = function(k) {
+      return symbolMap[k];
+    };
+
+    var GlobalSymbolRegistry = [];
+
+    function unique(bits) {
+      return Array(bits + 1).join('x').replace(/x/g, function() {
+        return random() < 0.5 ? '\u200C' : '\u200D'; // JWNJ / ZWJ
+      });
+    }
+
+    // 19.4.1 The Symbol Constructor
+    // 19.4.1.1 Symbol ( description=undefined )
+    function Symbol(description) {
+      if (!(this instanceof Symbol)) return new Symbol(description, secret);
+      if (this instanceof Symbol && arguments[1] !== secret) throw TypeError();
+
+      var descString = description === undefined ? undefined : String(description);
+
+      set_internal(this, '[[SymbolData]]', unique(128));
+      set_internal(this, '[[Description]]', descString);
+
+      symbolMap[this] = this;
+      return this;
+    }
+
+    if (!('Symbol' in global) || OVERRIDE_NATIVE_FOR_TESTING)
+      global.Symbol = Symbol;
+
+    // 19.4.2 Properties of the Symbol Constructor
+
+    // 19.4.2.1 Symbol.for (key)
+    define(Symbol, 'for', function for_(key) {
+      var stringKey = String(key);
+      for (var i = 0; i < GlobalSymbolRegistry.length; ++i) {
+        var e = GlobalSymbolRegistry[i];
+        if (SameValue(e['[[key]]'], stringKey)) return e['[[symbol]]'];
+      }
+      var newSymbol = Symbol(key);
+      GlobalSymbolRegistry.push({'[[key]]': stringKey, '[[symbol]]': newSymbol});
+      return newSymbol;
+    });
+
+    // 19.4.2.2 Symbol.hasInstance
+    // 19.4.2.3 Symbol.isConcatSpreadable
+
+    // 19.4.2.4 Symbol.iterator
+    define(global.Symbol, 'iterator', global.Symbol('Symbol.iterator'));
+
+    // 19.4.2.5 Symbol.keyFor (sym)
+    define(Symbol, 'keyFor', function keyFor(sym) {
+      if (!(sym instanceof Symbol)) throw TypeError();
+      for (var i = 0; i < GlobalSymbolRegistry.length; ++i) {
+        var e = GlobalSymbolRegistry[i];
+        if (SameValue(e['[[symbol]]'], sym)) return e['[[key]]'];
+      }
+      return undefined;
+    });
+
+    // 19.4.2.6 Symbol.match
+    define(global.Symbol, 'match', global.Symbol('Symbol.match'));
+
+    // 19.4.2.7 Symbol.prototype
+
+    // 19.4.2.8 Symbol.replace
+    define(global.Symbol, 'replace', global.Symbol('Symbol.replace'));
+
+    // 19.4.2.9 Symbol.search
+    define(global.Symbol, 'search', global.Symbol('Symbol.search'));
+
+    // 19.4.2.10 Symbol.species
+
+    // 19.4.2.11 Symbol.search
+    define(global.Symbol, 'split', global.Symbol('Symbol.split'));
+
+    // 19.4.2.12 Symbol.toPrimitive
+
+    // 19.4.2.13 Symbol.toStringTag
+    define(global.Symbol, 'toStringTag', global.Symbol('Symbol.toStringTag'));
+
+    // 19.4.2.14 Symbol.unscopables
+
+    // 19.4.3 Properties of the Symbol Prototype Object
+    // 19.4.3.1 Symbol.prototype.constructor
+
+    // 19.4.3.2 Symbol.prototype.toString ( )
+    Object.defineProperty(Symbol.prototype, 'toString', {
+      value: function toString() {
+        var s = strict(this);
+        var desc = s['[[Description]]'];
+        return 'Symbol(' + (desc === undefined ? '' : desc) + s['[[SymbolData]]'] + ')';
+      },
+      configurable: true, writeable: true, enumerable: false });
+
+    // 19.4.3.3 Symbol.prototype.valueOf ( )
+    Object.defineProperty(Symbol.prototype, 'valueOf', {
+      value: function valueOf() {
+        // To prevent automatic string conversion:
+        throw TypeError();
+
+        // Spec has approximately the following:
+        //var s = strict(this);
+        //if (Type(s) === 'symbol') return s;
+        //if (Type(s) !== 'object') throw TypeError();
+        //if (!('[[SymbolData]]' in s)) throw TypeError();
+        //return s['[[SymbolData]]'];
+      },
+      configurable: true, writeable: true, enumerable: false });
+
+    // 19.4.3.4 Symbol.prototype [ @@toStringTag ]
+    // (Done later to polyfill partial implementations)
+
+    // 19.4.4 Properties of Symbol Instances
+  }());
+
+  console.assert(typeof global.Symbol() === 'symbol' || symbolForKey(String(global.Symbol('x'))));
+
+  // Defined here so that other prototypes can reference it
+  // 25.1.2 The %IteratorPrototype% Object
+  var $IteratorPrototype$ = {};
+
+  //----------------------------------------
+  // 6 ECMAScript Data Types and Values
+  //----------------------------------------
+
+  // 6.1 ECMAScript Language Types
+
+  // "Type(x)" is used as shorthand for "the type of x"...
+  function Type(v) {
+    switch (typeof v) {
+    case 'undefined': return 'undefined';
+    case 'boolean': return 'boolean';
+    case 'number': return 'number';
+    case 'string': return 'string';
+    case 'symbol': return 'symbol';
+    default:
+      if (v === null) return 'null';
+      if (v instanceof global.Symbol) return 'symbol';
+      return 'object';
+    }
+  }
+
+  // 6.1.5.1 Well-Known Symbols
+  var $$iterator = global.Symbol.iterator,
+      $$match = global.Symbol.match,
+      $$replace = global.Symbol.replace,
+      $$search = global.Symbol.search,
+      $$split = global.Symbol.split,
+      $$toStringTag = global.Symbol.toStringTag;
+
+  //----------------------------------------
+  // 7 Abstract Operations
+  //----------------------------------------
+
+  //----------------------------------------
+  // 7.1 Type Conversion
+  //----------------------------------------
+
+  // 7.1.1 ToPrimitive ( input [, PreferredType] )
+  // just use valueOf()
+
+  // 7.1.2 ToBoolean ( argument )
+  // just use Boolean()
+
+  // 7.1.3 ToNumber ( argument )
+  // just use Number()
+
+  // 7.1.4 ToInteger ( argument )
+  function ToInteger(n) {
+    n = Number(n);
+    if ($isNaN(n)) return 0;
+    if (n === 0 || n === Infinity || n === -Infinity) return n;
+    return ((n < 0) ? -1 : 1) * floor(abs(n));
+  }
+
+  // 7.1.5 ToInt32 ( argument )
+  function ToInt32(v) { return v >> 0; }
+
+  // 7.1.6 ToUint32 ( argument )
+  function ToUint32(v) { return v >>> 0; }
+
+  // 7.1.7 ToInt16 ( argument )
+  function ToInt16(v) { return (v << 16) >> 16; }
+
+  // 7.1.8 ToUint16 ( argument )
+  function ToUint16(v) { return v & 0xFFFF; }
+
+  // 7.1.9 ToInt8 ( argument )
+  function ToInt8(v) { return (v << 24) >> 24; }
+
+  // 7.1.10 ToUint8 ( argument )
+  function ToUint8(v) { return v & 0xFF; }
+
+  // 7.1.11 ToUint8Clamp ( argument )
+  function ToUint8Clamp(argument) {
+    var number = Number(argument);
+    if ($isNaN(number)) return 0;
+    if (number <= 0) return 0;
+    if (number >= 255) return 255;
+    var f = floor(number);
+    if ((f + 0.5) < number) return f + 1;
+    if (number < (f + 0.5)) return f;
+    if (f % 2) return f + 1;
+    return f;
+  }
+
+  // 7.1.12 ToString ( argument )
+  // just use String()
+
+  // 7.1.13 ToObject ( argument )
+  function ToObject(v) {
+    if (v === null || v === undefined) throw TypeError();
+    return Object(v);
+  }
+
+  // 7.1.14 ToPropertyKey ( argument )
+  function ToPropertyKey(v) {
+    return String(v);
+  }
+
+  // 7.1.15 ToLength ( argument )
+  function ToLength(v) {
+    var len = ToInteger(v);
+    if (len <= 0) return 0;
+    if (len === Infinity) return 0x20000000000000 - 1; // 2^53-1
+    return min(len, 0x20000000000000 - 1); // 2^53-1
+  }
+
+  // 7.1.16 CanonicalNumericIndexString ( argument )
+
+  //----------------------------------------
+  // 7.2 Testing and Comparison Operations
+  //----------------------------------------
+
+  // 7.2.1 RequireObjectCoercible ( argument )
+  // 7.2.2 IsArray ( argument )
+
+  // 7.2.3 IsCallable ( argument )
+  function IsCallable(o) { return typeof o === 'function'; }
+
+  // 7.2.4 IsConstructor ( argument )
+  function IsConstructor(o) {
+    // Hacks for Safari 7 TypedArray XXXConstructor objects
+    if (/Constructor/.test(Object.prototype.toString.call(o))) return true;
+    if (/Function/.test(Object.prototype.toString.call(o))) return true;
+    // TODO: Can this be improved on?
+    return typeof o === 'function';
+  }
+
+  // 7.2.5 IsExtensible (O)
+  // 7.2.6 IsInteger ( argument )
+
+  // 7.2.7 IsPropertyKey ( argument )
+  function IsPropertyKey(argument) {
+    if (Type(argument) === 'string') return true;
+    if (Type(argument) === 'symbol') return true;
+    return false;
+  }
+
+  // 7.2.8 IsRegExp ( argument )
+  // 7.2.5 IsConstructor ( argument )
+
+  // 7.2.9 SameValue(x, y)
+  function SameValue(x, y) {
+    if (typeof x !== typeof y) return false;
+    switch (typeof x) {
+    case 'undefined':
+      return true;
+    case 'number':
+      if (x !== x && y !== y) return true;
+      if (x === 0 && y === 0) return 1/x === 1/y;
+      return x === y;
+    case 'boolean':
+    case 'string':
+    case 'object':
+    default:
+      return x === y;
+    }
+  }
+
+  // 7.2.10 SameValueZero(x, y)
+  function SameValueZero(x, y) {
+    if (typeof x !== typeof y) return false;
+    switch (typeof x) {
+    case 'undefined':
+      return true;
+    case 'number':
+      if (x !== x && y !== y) return true;
+      return x === y;
+    case 'boolean':
+    case 'string':
+    case 'object':
+    default:
+      return x === y;
+    }
+  }
+
+  //----------------------------------------
+  // 7.3 Operations on Objects
+  //----------------------------------------
+
+  // 7.3.1 Get (O, P)
+  // - just use o.p or o[p]
+
+  // 7.3.2 GetV (V, P)
+  function GetV(v, p) {
+    var o = ToObject(v);
+    return o[p];
+  }
+
+  // 7.3.3 Set (O, P, V, Throw)
+  // - just use o.p = v or o[p] = v
+
+
+
+
+  // 7.3.9 GetMethod (O, P)
+  function GetMethod(o, p) {
+    var func = GetV(o, p);
+    if (func === undefined || func === null) return undefined;
+    if (!IsCallable(func)) throw TypeError();
+    return func;
+  }
+
+  // 7.3.10 HasProperty (O, P)
+  function HasProperty(o, p) {
+    while (o) {
+      if (Object.prototype.hasOwnProperty.call(o, p)) return true;
+      if (Type(o) !== 'object') return false;
+      o = Object.getPrototypeOf(o);
+    }
+    return false;
+  }
+
+  // 7.3.11 HasOwnProperty (O, P)
+  function HasOwnProperty(o, p) {
+    return Object.prototype.hasOwnProperty.call(o, p);
+  }
+
+  //----------------------------------------
+  // 7.4 Operations on Iterator Objects
+  //----------------------------------------
+
+  // 7.4.1 GetIterator ( obj, method )
+  function GetIterator(obj, method) {
+    if (arguments.length < 2)
+      method = GetMethod(obj, $$iterator);
+    var iterator = method.call(obj);
+    if (Type(iterator) !== 'object') throw TypeError();
+    return iterator;
+  }
+
+  // 7.4.2 IteratorNext ( iterator, value )
+  function IteratorNext(iterator, value) {
+    if (arguments.length < 2)
+      var result = iterator.next();
+    else
+      result = iterator.next(value);
+    if (Type(result) !== 'object') throw TypeError();
+    return result;
+  }
+
+  // 7.4.3 IteratorComplete ( iterResult )
+  function IteratorComplete(iterResult) {
+    console.assert(Type(iterResult) === 'object');
+    return Boolean(iterResult.done);
+  }
+
+  // 7.4.4 IteratorValue ( iterResult )
+  function IteratorValue(iterResult) {
+    console.assert(Type(iterResult) === 'object');
+    return iterResult.value;
+  }
+
+  // 7.4.5 IteratorStep ( iterator )
+  function IteratorStep( iterator, value ) {
+    var result = IteratorNext(iterator, value);
+    var done = result['done'];
+    if (Boolean(done) === true) return false;
+    return result;
+  }
+
+  // 7.4.6 IteratorClose( iterator, completion )
+  function IteratorClose( iterator, completion ) {
+    console.assert(Type(iterator) === 'object');
+    var _return = GetMethod(iterator, 'return');
+    if (_return === undefined) return completion;
+    try {
+      var innerResult = _return[iterator]();
+    } catch (result) {
+      // TODO: If completion.[[type]] is throw, return completion
+      return result;
+    }
+    if (Type(innerResult) !== 'object') throw TypeError();
+    return completion;
+  }
+
+  // 7.4.7 CreateIterResultObject (value, done)
+  function CreateIterResultObject(value, done) {
+    console.assert(Type(done) === 'boolean');
+    var obj = {};
+    obj["value"] = value;
+    obj["done"] = done;
+    return obj;
+  }
+
+  // 7.4.8 CreateListIterator (list)
+  // 7.4.8.1 ListIterator next( )
+  // 7.4.9 CreateCompoundIterator ( iterator1, iterator2 )
+  // 7.4.9.1 CompoundIterator next( )
+
+  //----------------------------------------
+  // 8 Executable Code and Execution Contexts
+  //----------------------------------------
+
+  //----------------------------------------
+  // 8.4 Jobs and Job Queues
+  //----------------------------------------
+
+  // 8.4.1 EnqueueJob ( queueName, job, arguments)
+  function EnqueueJob(queueName, job, args) {
+    var fn = function() { job.apply(undefined, args); };
+    enqueue(fn);
+  }
+
+  // 8.4.2 NextJob result
+  function NextJob(result) {
+    // no-op
+  }
+
+  //----------------------------------------
+  // 9 Ordinary and Exotic Objects Behaviors
+  //----------------------------------------
+
+  // 9.1.11 [[Enumerate]] ()
+  function Enumerate(obj) {
+    var e = [];
+    if (Object(obj) !== obj) return e;
+    var visited = new Set;
+    while (obj !== null) {
+      Object.getOwnPropertyNames(obj).forEach(function(name) {
+        if (!visited.has(name)) {
+          var desc = Object.getOwnPropertyDescriptor(obj, name);
+          if (desc) {
+            visited.add(name);
+            if (desc.enumerable) e.push(name);
+          }
+        }
+      });
+      obj = Object.getPrototypeOf(obj);
+    }
+    return e[$$iterator]();
+  }
+
+  // 9.1.12 [[OwnPropertyKeys]] ( )
+  function OwnPropertyKeys(o) {
+    return Object.getOwnPropertyNames(o);
+  }
+
+  // 9.1.13 ObjectCreate(proto, internalSlotsList)
+  function ObjectCreate(proto, internalSlotsList) {
+    return Object.create(proto, internalSlotsList);
+  }
+
+  // ---------------------------------------
+  // 19 Fundamental Objects
+  // ---------------------------------------
+
+  // ---------------------------------------
+  // 19.1 Object Objects
+  // ---------------------------------------
+
+  // 19.1.1 The Object Constructor
+  // 19.1.1.1 Object ( [ value ] )
+  // 19.1.2 Properties of the Object Constructor
+  // 19.1.2.1 Object.assign ( target, ...sources )
+  define(
+    Object, 'assign',
+    function assign(target, /*...*/sources) {
+      var to = ToObject(target);
+      if (arguments.length < 2) return to;
+
+      var sourcesIndex = 1;
+      while (sourcesIndex < arguments.length) {
+        var nextSource = arguments[sourcesIndex++];
+        if (nextSource === undefined || nextSource === null) {
+          var keys = [];
+        } else {
+          var from = ToObject(nextSource);
+          keys = OwnPropertyKeys(from);
+        }
+        for (var keysIndex = 0; keysIndex < keys.length; ++keysIndex) {
+          var nextKey = keys[keysIndex];
+          var desc = Object.getOwnPropertyDescriptor(from, nextKey);
+          if (desc !== undefined && desc.enumerable) {
+            var propValue = from[nextKey];
+            to[nextKey] = propValue;
+          }
+        }
+      }
+      return to;
+    });
+
+  // 19.1.2.2 Object.create ( O [ , Properties ] )
+  // 19.1.2.3 Object.defineProperties ( O, Properties )
+  // 19.1.2.4 Object.defineProperty ( O, P, Attributes )
+  // 19.1.2.5 Object.freeze ( O )
+  // 19.1.2.6 Object.getOwnPropertyDescriptor ( O, P )
+
+  (function() {
+    var nativeSymbols = (typeof global.Symbol() === 'symbol'),
+        $getOwnPropertyNames = Object.getOwnPropertyNames,
+        $keys = Object.keys,
+        $window_names = (typeof window === 'object' ? $getOwnPropertyNames(window) : []);
+
+    function isStringKey(k) { return !symbolForKey(k); }
+
+    // 19.1.2.7 Object.getOwnPropertyNames ( O )
+    define(
+      Object, 'getOwnPropertyNames',
+      function getOwnPropertyNames(o) {
+        if (Object.prototype.toString.call(o) === '[object Window]') {
+          // Workaround for cross-realm calling by IE itself.
+          // https://github.com/inexorabletash/polyfill/issues/96
+          try {
+            return $getOwnPropertyNames(o).filter(isStringKey);
+          } catch (_) {
+            return $window_names.slice();
+          }
+        }
+        return $getOwnPropertyNames(o).filter(isStringKey);
+      }, !nativeSymbols);
+
+    // 19.1.2.8 Object.getOwnPropertySymbols ( O )
+    define(
+      Object, 'getOwnPropertySymbols',
+      function getOwnPropertySymbols(o) {
+        return $getOwnPropertyNames(o).filter(symbolForKey).map(symbolForKey);
+      }, !nativeSymbols);
+
+    // 19.1.2.14 Object.keys ( O )
+    define(
+      Object, 'keys',
+      function keys(o) {
+        return $keys(o).filter(isStringKey);
+      }, !nativeSymbols);
+  }());
+
+  // 19.1.2.9 Object.getPrototypeOf ( O )
+  // 19.1.2.10 Object.is ( value1, value2 )
+  define(
+    Object, 'is',
+    function is(value1, value2) {
+      return SameValue(value1, value2);
+    });
+
+  // 19.1.2.11 Object.isExtensible ( O )
+  // 19.1.2.12 Object.isFrozen ( O )
+  // 19.1.2.13 Object.isSealed ( O )
+
+  // 19.1.2.14 Object.keys ( O )
+  // see above
+
+  // 19.1.2.15 Object.preventExtensions ( O )
+  // 19.1.2.16 Object.prototype
+  // 19.1.2.17 Object.seal ( O )
+
+  // 19.1.2.18 Object.setPrototypeOf ( O, proto )
+  define(
+    Object, 'setPrototypeOf',
+    function setPrototypeOf(o, proto) {
+      if (Type(o) !== 'object') throw TypeError();
+      if (Type(proto) !== 'object' && Type(proto) !== 'null') throw TypeError();
+      o.__proto__ = proto;
+      return o;
+    }
+  );
+
+  // 19.1.3 Properties of the Object Prototype Object
+  // 19.1.3.1 Object.prototype.constructor
+  // 19.1.3.2 Object.prototype.hasOwnProperty ( V )
+  // 19.1.3.3 Object.prototype.isPrototypeOf ( V )
+  // 19.1.3.4 Object.prototype.propertyIsEnumerable ( V )
+  // 19.1.3.5 Object.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
+  // 19.1.3.6 Object.prototype.toString ( )
+  hook(Object.prototype, 'toString',
+       function() {
+         var o = strict(this);
+         if (o === Object(o) && $$toStringTag in o) {
+           return '[object ' + o[$$toStringTag] + ']';
+         }
+         return undefined;
+       });
+
+  // 19.1.3.7 Object.prototype.valueOf ( )
+  // 19.1.4 Properties of Object Instances
+
+  // ---------------------------------------
+  // 19.2 Function Objects
+  // ---------------------------------------
+
+  // 19.2.1 The Function Constructor
+  // 19.2.1.1 Function ( p1, p2, … , pn, body )
+  // 19.2.2 Properties of the Function Constructor
+  // 19.2.2.1 Function.length
+  // 19.2.2.2 Function.prototype
+  // 19.2.3 Properties of the Function Prototype Object
+  // 19.2.3.1 Function.prototype.apply ( thisArg, argArray )
+  // 19.2.3.2 Function.prototype.bind ( thisArg , ...args)
+  // 19.2.3.3 Function.prototype.call (thisArg , ...args)
+  // 19.2.3.4 Function.prototype.constructor
+  // 19.2.3.5 Function.prototype.toString ( )
+  // 19.2.3.6 Function.prototype[@@hasInstance] ( V )
+  // 19.2.4 Function Instances
+  // 19.2.4.1 length
+  // 19.2.4.2 name
+  // 19.2.4.3 prototype
+
+  // (No polyfillable changes from ES5)
+
+  // ---------------------------------------
+  // 19.3 Boolean Objects
+  // ---------------------------------------
+
+  // 19.3.1 The Boolean Constructor
+  // 19.3.1.1 Boolean ( value )
+  // 19.3.2 Properties of the Boolean Constructor
+  // 19.3.2.1 Boolean.prototype
+  // 19.3.3 Properties of the Boolean Prototype Object
+  // 19.3.3.1 Boolean.prototype.constructor
+  // 19.3.3.2 Boolean.prototype.toString ( )
+  // 19.3.3.3 Boolean.prototype.valueOf ( )
+  // 19.3.4 Properties of Boolean Instances
+
+  // (No polyfillable changes from ES5)
+
+  // ---------------------------------------
+  // 19.4 Symbol Objects
+  // ---------------------------------------
+
+  // Moved earlier in this script, so that other polyfills can depend on them.
+
+  // 19.4.3.4 Symbol.prototype [ @@toStringTag ]
+  define(global.Symbol.prototype, global.Symbol.toStringTag, 'Symbol');
+
+  // ---------------------------------------
+  // 19.5 Error Objects
+  // ---------------------------------------
+
+  // 19.5.1 The Error Constructor
+  // 19.5.1.1 Error ( message )
+  // 19.5.1.2 new Error( ...argumentsList )
+  // 19.5.2 Properties of the Error Constructor
+  // 19.5.2.1 Error.prototype
+  // 19.5.3 Properties of the Error Prototype Object
+  // 19.5.3.1 Error.prototype.constructor
+  // 19.5.3.2 Error.prototype.message
+  // 19.5.3.3 Error.prototype.name
+  // 19.5.3.4 Error.prototype.toString ( )
+  // 19.5.4 Properties of Error Instances
+  // 19.5.5 Native Error Types Used in This Standard
+  // 19.5.5.1 EvalError
+  // 19.5.5.2 RangeError
+  // 19.5.5.3 ReferenceError
+  // 19.5.5.4 SyntaxError
+  // 19.5.5.5 TypeError
+  // 19.5.5.6 URIError
+  // 19.5.6 NativeError Object Structure
+  // 19.5.6.1 NativeError Constructors
+  // 19.5.6.1.1 NativeError ( message )
+  // 19.5.6.1.2 new NativeError ( ...argumentsList )
+  // 19.5.6.2 Properties of the NativeError Constructors
+  // 19.5.6.2.1 NativeError.prototype
+  // 19.5.6.3 Properties of the NativeError Prototype Objects
+  // 19.5.6.4 Properties of NativeError Instances
+
+  // (No polyfillable changes from ES5)
+
+  // ---------------------------------------
+  // 20 Numbers and Dates
+  // ---------------------------------------
+
+  // ---------------------------------------
+  // 20.1 Number Objects
+  // ---------------------------------------
+
+  // 20.1.1 The Number Constructor
+  // 20.1.1.1 Number ( [ value ] )
+  // 20.1.1.2 new Number ( ...argumentsList )
+  // 20.1.2 Properties of the Number Constructor
+
+  // 20.1.2.1 Number.EPSILON
+  define(
+    Number, 'EPSILON',
+    (function () {
+      var next, result;
+      for (next = 1; 1 + next !== 1; next = next / 2)
+        result = next;
+      return result;
+    }()));
+
+  // 20.1.2.2 Number.isFinite ( number )
+  define(
+    Number, 'isFinite',
+    function isFinite(number) {
+      if (Type(number) !== 'number') return false;
+      if (number !== number || number === +Infinity || number === -Infinity) return false;
+      return true;
+    });
+
+  // 20.1.2.3 Number.isInteger ( number )
+  define(
+    Number, 'isInteger',
+    function isInteger(number) {
+      if (Type(number) !== 'number') return false;
+      if (number !== number || number === +Infinity || number === -Infinity) return false;
+      var integer = ToInteger(number);
+      if (integer !== number) return false;
+      return true;
+    });
+
+  // 20.1.2.4 Number.isNaN ( number )
+  define(
+    Number, 'isNaN',
+    function isNaN(number) {
+      if (Type(number) !== 'number') return false;
+      if (number !== number) return true;
+      return false;
+    });
+
+  // 20.1.2.5 Number.isSafeInteger ( number )
+  define(
+    Number, 'isSafeInteger',
+    function isSafeInteger(number) {
+      if (Type(number) !== 'number') return false;
+      if (number !== number || number === +Infinity || number === -Infinity) return false;
+      var integer = ToInteger(number);
+      if (integer !== number) return false;
+      if (abs(integer) <= (0x20000000000000 - 1)) // 2^53-1
+        return true;
+      return false;
+    });
+
+  // 20.1.2.6 Number.MAX_SAFE_INTEGER
+  define(
+    Number, 'MAX_SAFE_INTEGER',
+    9007199254740991); // 2^53-1
+
+  // 20.1.2.7 Number.MAX_VALUE
+
+  // 20.1.2.8 Number.MIN_SAFE_INTEGER
+  define(
+    Number, 'MIN_SAFE_INTEGER',
+    -9007199254740991); // -2^53+1
+
+  // 20.1.2.9 Number.MIN_VALUE
+  // 20.1.2.10 Number.NaN
+  // 20.1.2.11 Number.NEGATIVE_INFINITY
+
+  // 20.1.2.12 Number.parseFloat ( string )
+  define(Number, 'parseFloat', $parseFloat);
+
+  // 20.1.2.13 Number.parseInt ( string, radix )
+  define(Number, 'parseInt', $parseInt);
+
+  // 20.1.2.14 Number.POSITIVE_INFINITY
+  // 20.1.2.15 Number.prototype
+
+  // 20.1.3 Properties of the Number Prototype Object
+  // 20.1.3.1 Number.prototype.constructor
+  // 20.1.3.2 Number.prototype.toExponential ( fractionDigits )
+  // 20.1.3.3 Number.prototype.toFixed ( fractionDigits )
+  // 20.1.3.4 Number.prototype.toLocaleString( [ reserved1 [ , reserved2 ] ])
+  // 20.1.3.5 Number.prototype.toPrecision ( precision )
+  // 20.1.3.6 Number.prototype.toString ( [ radix ] )
+  // 20.1.3.7 Number.prototype.valueOf ( )
+  // 20.1.4 Properties of Number Instances
+
+  // ---------------------------------------
+  // 20.2 The Math Object
+  // ---------------------------------------
+
+  // 20.2.1 Value Properties of the Math Object
+  // 20.2.1.1 Math.E
+  // 20.2.1.2 Math.LN10
+  // 20.2.1.3 Math.LN2
+  // 20.2.1.4 Math.LOG10E
+  // 20.2.1.5 Math.LOG2E
+  // 20.2.1.6 Math.PI
+  // 20.2.1.7 Math.SQRT1_2
+  // 20.2.1.8 Math.SQRT2
+
+  // 20.2.1.9 Math [ @@toStringTag ]
+  define(Math, $$toStringTag, 'Math');
+
+  // 20.2.2 Function Properties of the Math Object
+  // 20.2.2.1 Math.abs ( x )
+  // 20.2.2.2 Math.acos ( x )
+
+  // 20.2.2.3 Math.acosh(x)
+  define(
+    Math, 'acosh',
+    function acosh(x) {
+      x = Number(x);
+      return log(x + sqrt(x * x - 1));
+    });
+
+  // 20.2.2.4 Math.asin ( x )
+
+  // 20.2.2.5 Math.asinh( x )
+  define(
+    Math, 'asinh',
+    function asinh(x) {
+      x = Number(x);
+      if (SameValue(x, -0)) {
+        return x;
+      }
+      var s = sqrt(x * x + 1);
+      return (s === -x) ? log(0) : log(x + s);
+    });
+
+  // 20.2.2.6 Math.atan ( x )
+
+  // 20.2.2.7 Math.atanh( x )
+  define(
+    Math, 'atanh',
+    function atanh(x) {
+      x = Number(x);
+      return (x === 0) ? x : log((1 + x) / (1 - x)) / 2;
+    });
+
+  // 20.2.2.8 Math.atan2 ( y, x )
+
+  // 20.2.2.9 Math.cbrt ( x )
+  define(
+    Math, 'cbrt',
+    function cbrt(x) {
+      x = Number(x);
+      if ($isNaN(x/x)) {
+        return x;
+      }
+      var r = pow(abs(x), 1/3);
+      var t = x/r/r;
+      return r + (r * (t-r) / (2*r + t));
+    });
+
+  // 20.2.2.10 Math.ceil ( x )
+
+  // 20.2.2.11 Math.clz32 ( x )
+  define(
+    Math, 'clz32',
+    function clz32(x) {
+      function clz8(x) {
+        return (x & 0xf0) ? (x & 0x80 ? 0 : x & 0x40 ? 1 : x & 0x20 ? 2 : 3) :
+        (x & 0x08 ? 4 : x & 0x04 ? 5 : x & 0x02 ? 6 : x & 0x01 ? 7 : 8);
+      }
+      x = ToUint32(x);
+      return x & 0xff000000 ? clz8(x >> 24) :
+        x & 0xff0000 ? clz8(x >> 16) + 8 :
+        x & 0xff00 ? clz8(x >> 8) + 16 : clz8(x) + 24;
+    });
+
+
+
+  // 20.2.2.12 Math.cos ( x )
+
+  // 20.2.2.13 Math.cosh ( x )
+  define(
+    Math, 'cosh',
+    function cosh(x) {
+      x = Number(x);
+      return (pow(E, x) + pow(E, -x)) / 2;
+    });
+
+  // 20.2.2.14 Math.exp ( x )
+
+  // 20.2.2.15 Math.expm1 ( x )
+  define(
+    Math, 'expm1',
+    function expm1(x) {
+      x = Number(x);
+      // from: http://www.johndcook.com/cpp_log1p.html
+      if (SameValue(x, -0)) {
+        return -0;
+      } else if (abs(x) < 1e-5) {
+        return x + 0.5 * x * x; // two terms of Taylor expansion
+      } else {
+        return exp(x) - 1;
+      }
+    });
+
+  // 20.2.2.16 Math.floor ( x )
+
+  // 20.2.2.17 Math.fround ( x )
+  define(
+    Math, 'fround',
+    function fround(x) {
+      if ($isNaN(x)) {
+        return NaN;
+      }
+      if (1/x === +Infinity || 1/x === -Infinity || x === +Infinity || x === -Infinity) {
+        return x;
+      }
+      return (new Float32Array([x]))[0];
+    });
+
+  // 20.2.2.18 Math.hypot ( value1 [, value2 [ ... ] ] )
+  define(
+    Math, 'hypot',
+    function hypot() {
+      var values = [];
+      var m = 0, sawNaN = false;
+      for (var i = 0; i < arguments.length; ++i) {
+        var n = abs(Number(arguments[i]));
+        if (n === Infinity) return n;
+        if (n !== n) sawNaN = true;
+        if (n > m) m = n;
+        values[i] = n;
+      }
+      if (sawNaN) return NaN;
+      if (m === 0) return +0;
+      var sum = +0;
+      for (i = 0; i < values.length; ++i) {
+        var r = values[i] / m;
+        sum = sum + r * r;
+      }
+      return m * sqrt(sum);
+    });
+
+  // 20.2.2.19 Math.imul ( x, y )
+  define(
+    Math, 'imul',
+    function imul(x, y) {
+      var a = ToUint32(x);
+      var b = ToUint32(y);
+      // (slow but accurate)
+      var ah  = (a >>> 16) & 0xffff;
+      var al = a & 0xffff;
+      var bh  = (b >>> 16) & 0xffff;
+      var bl = b & 0xffff;
+      return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
+    }, ('imul' in Math && Math.imul(1, 0x80000000) === 0) // Safari 7 bug
+  );
+
+  // 20.2.2.20 Math.log ( x )
+
+  // 20.2.2.21 Math.log1p ( x )
+  define(
+    Math, 'log1p',
+    function log1p(x) {
+      x = Number(x);
+      // from: http://www.johndcook.com/cpp_expm1.html
+      if (x < -1) {
+        return NaN;
+      } else if (SameValue(x, -0)) {
+        return -0;
+      } else if (abs(x) > 1e-4) {
+        return log(1 + x);
+      } else {
+        return (-0.5 * x + 1) * x;
+      }
+    });
+
+  // 20.2.2.22 Math.log10 ( x )
+  define(
+    Math, 'log10',
+    function log10(x) {
+      x = Number(x);
+      return log(x) * LOG10E;
+    });
+
+  // 20.2.2.23 Math.log2 ( x )
+  define(
+    Math, 'log2',
+    function log2(x) {
+      x = Number(x);
+      return log(x) * LOG2E;
+    });
+
+  // 20.2.2.24 Math.max ( value1, value2 , ...values )
+  // 20.2.2.25 Math.min ( value1, value2 , ...values )
+  // 20.2.2.26 Math.pow ( x, y )
+  // 20.2.2.27 Math.random ( )
+  // 20.2.2.28 Math.round ( x )
+
+  // 20.2.2.29 Math.sign(x)
+  define(
+    Math, 'sign',
+    function sign(x) {
+      x = Number(x);
+      return x < 0 ? -1 : x > 0 ? 1 : x;
+    });
+
+  // 20.2.2.30 Math.sin ( x )
+
+  // 20.2.2.31 Math.sinh( x )
+  define(
+    Math, 'sinh',
+    function sinh(x) {
+      x = Number(x);
+      return SameValue(x, -0) ? x : (pow(E, x) - pow(E, -x)) / 2;
+    });
+
+  // 20.2.2.32 Math.sqrt ( x )
+  // 20.2.2.33 Math.tan ( x )
+
+  // 20.2.2.34 Math.tanh ( x )
+  define(
+    Math, 'tanh',
+    function tanh(x) {
+      x = Number(x);
+      var n = pow(E, 2 * x) - 1,
+          d = pow(E, 2 * x) + 1;
+      if (SameValue(x, -0))
+        return x;
+      return (n === d) ? 1 : n / d; // Handle Infinity/Infinity
+    });
+
+  // 20.2.2.35 Math.trunc ( x )
+  define(
+    Math, 'trunc',
+    function trunc(x) {
+      x = Number(x);
+      return $isNaN(x) ? NaN :
+        x < 0 ? ceil(x) : floor(x);
+    });
+
+  // ---------------------------------------
+  // 20.3 Date Objects
+  // ---------------------------------------
+
+  // 20.3.1 Overview of Date Objects and Definitions of Abstract Operations
+  // 20.3.1.1 Time Values and Time Range
+  // 20.3.1.2 Day Number and Time within Day
+  // 20.3.1.3 Year Number
+  // 20.3.1.4 Month Number
+  // 20.3.1.5 Date Number
+  // 20.3.1.6 Week Day
+  // 20.3.1.7 Local Time Zone Adjustment
+  // 20.3.1.8 Daylight Saving Time Adjustment
+  // 20.3.1.9 Local Time
+  // 20.3.1.10 Hours, Minutes, Second, and Milliseconds
+  // 20.3.1.11 MakeTime (hour, min, sec, ms)
+  // 20.3.1.12 MakeDay (year, month, date)
+  // 20.3.1.13 MakeDate (day, time)
+  // 20.3.1.14 TimeClip (time)
+  // 20.3.1.15 Date Time String Format
+  // 20.3.1.15.1 Extended years
+  // 20.3.2 The Date Constructor
+  // 20.3.2.1 Date ( year, month [, date [ , hours [ , minutes [ , seconds [ , ms ] ] ] ] ] )
+  // 20.3.2.2 Date ( value )
+  // 20.3.2.3 Date ( )
+  // 20.3.3 Properties of the Date Constructor
+  // 20.3.3.1 Date.now ( )
+  // 20.3.3.2 Date.parse (string)
+  // 20.3.3.3 Date.prototype
+  // 20.3.3.4 Date.UTC ( year, month [ , date [ , hours [ , minutes [ , seconds [ , ms ] ] ] ] ] )
+  // 20.3.4 Properties of the Date Prototype Object
+  // 20.3.4.1 Date.prototype.constructor
+  // 20.3.4.2 Date.prototype.getDate ( )
+  // 20.3.4.3 Date.prototype.getDay ( )
+  // 20.3.4.4 Date.prototype.getFullYear ( )
+  // 20.3.4.5 Date.prototype.getHours ( )
+  // 20.3.4.6 Date.prototype.getMilliseconds ( )
+  // 20.3.4.7 Date.prototype.getMinutes ( )
+  // 20.3.4.8 Date.prototype.getMonth ( )
+  // 20.3.4.9 Date.prototype.getSeconds ( )
+  // 20.3.4.10 Date.prototype.getTime ( )
+  // 20.3.4.11 Date.prototype.getTimezoneOffset ( )
+  // 20.3.4.12 Date.prototype.getUTCDate ( )
+  // 20.3.4.13 Date.prototype.getUTCDay ( )
+  // 20.3.4.14 Date.prototype.getUTCFullYear ( )
+  // 20.3.4.15 Date.prototype.getUTCHours ( )
+  // 20.3.4.16 Date.prototype.getUTCMilliseconds ( )
+  // 20.3.4.17 Date.prototype.getUTCMinutes ( )
+  // 20.3.4.18 Date.prototype.getUTCMonth ( )
+  // 20.3.4.19 Date.prototype.getUTCSeconds ( )
+  // 20.3.4.20 Date.prototype.setDate ( date )
+  // 20.3.4.21 Date.prototype.setFullYear ( year [ , month [ , date ] ] )
+  // 20.3.4.22 Date.prototype.setHours ( hour [ , min [ , sec [ , ms ] ] ] )
+  // 20.3.4.23 Date.prototype.setMilliseconds ( ms )
+  // 20.3.4.24 Date.prototype.setMinutes ( min [ , sec [ , ms ] ] )
+  // 20.3.4.25 Date.prototype.setMonth ( month [ , date ] )
+  // 20.3.4.26 Date.prototype.setSeconds ( sec [ , ms ] )
+  // 20.3.4.27 Date.prototype.setTime ( time )
+  // 20.3.4.28 Date.prototype.setUTCDate ( date )
+  // 20.3.4.29 Date.prototype.setUTCFullYear ( year [ , month [ , date ] ] )
+  // 20.3.4.30 Date.prototype.setUTCHours ( hour [ , min [ , sec [ , ms ] ] ] )
+  // 20.3.4.31 Date.prototype.setUTCMilliseconds ( ms )
+  // 20.3.4.32 Date.prototype.setUTCMinutes ( min [ , sec [, ms ] ] )
+  // 20.3.4.33 Date.prototype.setUTCMonth ( month [ , date ] )
+  // 20.3.4.34 Date.prototype.setUTCSeconds ( sec [ , ms ] )
+  // 20.3.4.35 Date.prototype.toDateString ( )
+  // 20.3.4.36 Date.prototype.toISOString ( )
+  // 20.3.4.37 Date.prototype.toJSON ( key )
+  // 20.3.4.38 Date.prototype.toLocaleDateString ( [ reserved1 [ , reserved2 ] ] )
+  // 20.3.4.39 Date.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
+  // 20.3.4.40 Date.prototype.toLocaleTimeString ( [ reserved1 [ , reserved2 ] ] )
+  // 20.3.4.41 Date.prototype.toString ( )
+  // 20.3.4.42 Date.prototype.toTimeString ( )
+  // 20.3.4.43 Date.prototype.toUTCString ( )
+  // 20.3.4.44 Date.prototype.valueOf ( )
+  // 20.3.4.45 Date.prototype [ @@toPrimitive ] ( hint )
+  // 20.3.5 Properties of Date Instances
+
+  // (No polyfillable changes from ES5)
+
+  // ---------------------------------------
+  // 21 Text Processing
+  // ---------------------------------------
+
+  var string_regexp_dispatch = (function() {
+    var faux = {}, secret = Symbol();
+    faux[Symbol.match] = function() { return secret; };
+    return ("").match(faux) === secret;
+  }());
+
+  // 21.1 String Objects
+  // 21.1.1 The String Constructor
+  // 21.1.1.1 String ( value )
+  // 21.1.2 Properties of the String Constructor
+  // 21.1.2.1 String.fromCharCode ( ...codeUnits )
+
+  // 21.1.2.2 String.fromCodePoint ( ...codePoints )
+  define(
+    String, 'fromCodePoint',
+    function fromCodePoint(/*...codePoints*/) {
+      var codePoints = arguments,
+          length = codePoints.length,
+          elements = [],
+          nextIndex = 0;
+      while (nextIndex < length) {
+        var next = codePoints[nextIndex];
+        var nextCP = Number(next);
+        if (!SameValue(nextCP, ToInteger(nextCP)) ||
+            nextCP < 0 || nextCP > 0x10FFFF) {
+          throw RangeError('Invalid code point ' + nextCP);
+        }
+        if (nextCP < 0x10000) {
+          elements.push(String.fromCharCode(nextCP));
+        } else {
+          nextCP -= 0x10000;
+          elements.push(String.fromCharCode((nextCP >> 10) + 0xD800));
+          elements.push(String.fromCharCode((nextCP % 0x400) + 0xDC00));
+        }
+        nextIndex += 1;
+      }
+      return elements.join('');
+    });
+
+  // 21.1.2.3 String.prototype
+
+  // 21.1.2.4 String.raw ( template , ...substitutions )
+  define(
+    String, 'raw',
+    function raw(template /*, ...substitutions*/) {
+      var substitutions = [].slice.call(arguments, 1);
+
+      var cooked = Object(template);
+      var rawValue = cooked['raw'];
+      var raw = Object(rawValue);
+      var len = raw['length'];
+      var literalSegments = ToLength(len);
+      if (literalSegments <= 0) return '';
+      var stringElements = [];
+      var nextIndex = 0;
+      while (true) {
+        var next = raw[nextIndex];
+        var nextSeg = String(next);
+        stringElements.push(nextSeg);
+        if (nextIndex + 1 === literalSegments)
+          return stringElements.join('');
+        next = substitutions[nextIndex];
+        var nextSub = String(next);
+        stringElements.push(nextSub);
+        nextIndex = nextIndex + 1;
+      }
+    });
+
+  // See https://githib.com/inexorabletash/uate for a more useful version.
+
+  // 21.1.3 Properties of the String Prototype Object
+  // 21.1.3.1 String.prototype.charAt ( pos )
+  // 21.1.3.2 String.prototype.charCodeAt ( pos )
+
+  // 21.1.3.3 String.prototype.codePointAt ( pos )
+  define(
+    String.prototype, 'codePointAt',
+    function codePointAt(pos) {
+      var o = strict(this);
+      var s = String(o);
+      var position = ToInteger(pos);
+      var size = s.length;
+      if (position < 0 || position >= size) return undefined;
+      var first = s.charCodeAt(position);
+      if (first < 0xD800 || first > 0xDBFF || position + 1 === size) return first;
+      var second = s.charCodeAt(position + 1);
+      if (second < 0xDC00 || second > 0xDFFF) return first;
+      return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
+    });
+
+  // 21.1.3.4 String.prototype.concat ( ...args )
+  // 21.1.3.5 String.prototype.constructor
+
+  // 21.1.3.6 String.prototype.endsWith ( searchString [ , endPosition] )
+  define(
+    String.prototype, 'endsWith',
+    function endsWith(searchString) {
+      var endPosition = arguments[1];
+
+      var o = strict(this);
+      var s = String(o);
+      var searchStr = String(searchString);
+      var len = s.length;
+      var pos = (endPosition === undefined) ? len : ToInteger(endPosition);
+      var end = min(max(pos, 0), len);
+      var searchLength = searchStr.length;
+      var start = end - searchLength;
+      if (start < 0) return false;
+      if (s.substring(start, start + searchLength) === searchStr) return true;
+      return false;
+    });
+
+  // 21.1.3.7 String.prototype.includes ( searchString [ , position ] )
+  define(
+    String.prototype, 'includes',
+    function includes(searchString) {
+      var position = arguments[1];
+
+      var o = strict(this);
+      var s = String(o);
+      var searchStr = String(searchString);
+      var pos = ToInteger(position);
+      var len = s.length;
+      var start = min(max(pos, 0), len);
+      return s.indexOf(searchStr, start) !== -1;
+    });
+
+  // 21.1.3.8 String.prototype.indexOf ( searchString [ , position ] )
+  // 21.1.3.9 String.prototype.lastIndexOf ( searchString [ , position ] )
+  // 21.1.3.10 String.prototype.localeCompare ( that [, reserved1 [ , reserved2 ] ] )
+  // 21.1.3.11 String.prototype.match ( regexp )
+  define(
+    String.prototype, 'match',
+    function match(regexp) {
+      var o = strict(this);
+      var s = String(o);
+      if (HasProperty(regexp, $$match)) var rx = regexp;
+      else rx = new RegExp(regexp);
+      return rx[$$match](s);
+    }, !string_regexp_dispatch);
+
+  // 21.1.3.12 String.prototype.normalize ( [ form ] )
+
+  // Not practical due to table sizes; if needed, pull in:
+  // https://github.com/walling/unorm/
+
+  // 21.1.3.13 String.prototype.repeat ( count )
+  define(
+    String.prototype, 'repeat',
+    function repeat(count) {
+      var o = strict(this);
+      var s = String(o);
+      var n = ToInteger(count);
+      if (n < 0) throw RangeError();
+      if (n === Infinity) throw RangeError();
+      var t = new Array(n + 1).join(s);
+      return t;
+    });
+
+  // 21.1.3.14 String.prototype.replace (searchValue, replaceValue )
+  define(
+    String.prototype, 'replace',
+    function replace(searchValue, replaceValue) {
+      var o = strict(this);
+      if (HasProperty(searchValue, $$replace))
+        return searchValue[$$replace](o, replaceValue);
+      return orig_replace.call(o, searchValue, replaceValue);
+    }, !string_regexp_dispatch);
+
+  // 21.1.3.15 String.prototype.search ( regexp )
+  define(
+    String.prototype, 'search',
+    function search(regexp) {
+      var o = strict(this);
+      var string = String(o);
+      if (HasProperty(regexp, $$search)) var rx = regexp;
+      else rx = new RegExp(regexp);
+      return rx[$$search](string);
+    }, !string_regexp_dispatch);
+
+  // 21.1.3.16 String.prototype.slice ( start, end )
+  // 21.1.3.17 String.prototype.split ( separator, limit )
+  define(
+    String.prototype, 'split',
+    function split(separator, limit) {
+      var o = strict(this);
+      if (HasProperty(separator, $$split))
+        return separator[$$split](o, limit);
+      return orig_split.call(o, separator, limit);
+    }, !string_regexp_dispatch);
+
+  // 21.1.3.18 String.prototype.startsWith ( searchString [, position ] )
+  define(
+    String.prototype, 'startsWith',
+    function startsWith(searchString) {
+      var position = arguments[1];
+
+      var o = strict(this);
+      var s = String(o);
+      var searchStr = String(searchString);
+      var pos = ToInteger(position);
+      var len = s.length;
+      var start = min(max(pos, 0), len);
+      var searchLength = searchStr.length;
+      if (searchLength + start > len) return false;
+      if (s.substring(start, start + searchLength) === searchStr) return true;
+      return false;
+    });
+
+  // 21.1.3.19 String.prototype.substring ( start, end )
+  // 21.1.3.20 String.prototype.toLocaleLowerCase ( [ reserved1 [ , reserved2 ] ] )
+  // 21.1.3.21 String.prototype.toLocaleUpperCase ([ reserved1 [ , reserved2 ] ] )
+  // 21.1.3.22 String.prototype.toLowerCase ( )
+  // 21.1.3.23 String.prototype.toString ( )
+  // 21.1.3.24 String.prototype.toUpperCase ( )
+  // 21.1.3.25 String.prototype.trim ( )
+  // 21.1.3.26 String.prototype.valueOf ( )
+
+  // 21.1.3.27 String.prototype [ @@iterator ]( )
+  define(
+    String.prototype, $$iterator,
+    function entries() {
+      return CreateStringIterator(this, 'value');
+    });
+
+  // 21.1.4 Properties of String Instances
+  // 21.1.4.1 length
+
+  // 21.1.5 String Iterator Objects
+  /** @constructor */
+  function StringIterator() {}
+
+  // 21.1.5.1 CreateStringIterator Abstract Operation
+  function CreateStringIterator(string, kind) {
+    var s = String(string);
+    var iterator = new StringIterator;
+    set_internal(iterator, '[[IteratedString]]', s);
+    set_internal(iterator, '[[StringIteratorNextIndex]]', 0);
+    set_internal(iterator, '[[StringIterationKind]]', kind);
+    return iterator;
+  }
+
+  // 21.1.5.2 The %StringIteratorPrototype% Object
+  var $StringIteratorPrototype$ = Object.create($IteratorPrototype$);
+  StringIterator.prototype = $StringIteratorPrototype$;
+
+  // 21.1.5.2.1 %StringIteratorPrototype%.next ( )
+  define(
+    $StringIteratorPrototype$, 'next',
+    function next() {
+      var o = ToObject(this);
+      var s = String(o['[[IteratedString]]']),
+          index = o['[[StringIteratorNextIndex]]'],
+          len = s.length;
+      if (index >= len) {
+        set_internal(o, '[[StringIteratorNextIndex]]', Infinity);
+        return CreateIterResultObject(undefined, true);
+      }
+      var cp = s.codePointAt(index);
+      set_internal(o, '[[StringIteratorNextIndex]]', index + (cp > 0xFFFF ? 2 : 1));
+      return CreateIterResultObject(String.fromCodePoint(cp), false);
+    });
+
+  // 21.1.5.2.2 %StringIteratorPrototype% [ @@toStringTag ]
+  define($StringIteratorPrototype$, $$toStringTag, 'String Iterator');
+
+  // 21.1.5.3 Properties of String Iterator Instances
+
+  // ---------------------------------------
+  // 21.2 RegExp (Regular Expression) Objects
+  // ---------------------------------------
+
+  // 21.2.1 Patterns
+  // 21.2.2 Pattern Semantics
+  // 21.2.2.1 Notation
+  // 21.2.2.2 Pattern
+  // 21.2.2.3 Disjunction
+  // 21.2.2.4 Alternative
+  // 21.2.2.5 Term
+  // 21.2.2.6 Assertion
+  // 21.2.2.7 Quantifier
+  // 21.2.2.8 Atom
+  // 21.2.2.9 AtomEscape
+  // 21.2.2.10 CharacterEscape
+  // 21.2.2.11 DecimalEscape
+  // 21.2.2.12 CharacterClassEscape
+  // 21.2.2.13 CharacterClass
+  // 21.2.2.14 ClassRanges
+  // 21.2.2.15 NonemptyClassRanges
+  // 21.2.2.16 NonemptyClassRangesNoDash
+  // 21.2.2.17 ClassAtom
+  // 21.2.2.18 ClassAtomNoDash
+  // 21.2.2.19 ClassEscape
+  // 21.2.3 The RegExp Constructor
+  // 21.2.3.1 RegExp ( pattern, flags )
+  // 21.2.3.2 new RegExp( ...argumentsList )
+  // 21.2.3.3 Abstract Operations for the RegExp Constructor
+  // 21.2.4 Properties of the RegExp Constructor
+  // 21.2.4.1 RegExp.prototype
+  // 21.2.5 Properties of the RegExp Prototype Object
+  // 21.2.5.1 RegExp.prototype.constructor
+  // 21.2.5.2 RegExp.prototype.exec ( string )
+
+  // 21.2.5.3 get RegExp.prototype.flags
+  if (!('flags' in RegExp.prototype)) {
+    Object.defineProperty(
+      RegExp.prototype, 'flags', {
+        get: function() {
+          var s = String(this);
+          return s.substring(s.lastIndexOf('/') + 1);
+        }
+      });
+  }
+
+  // 21.2.5.4 get RegExp.prototype.global
+  // 21.2.5.5 get RegExp.prototype.ignoreCase
+
+  // 21.2.5.6 RegExp.prototype [ @@match ] ( string )
+  define(RegExp.prototype, $$match, function(string) {
+    var o = strict(this);
+    return orig_match.call(string, o);
+  });
+
+  // 21.2.5.7 get RegExp.prototype.multiline
+
+  // 21.2.5.8 RegExp.prototype [ @@replace ] ( string, replaceValue )
+  define(RegExp.prototype, $$replace, function(string, replaceValue) {
+    var o = strict(this);
+    return orig_replace.call(string, o, replaceValue);
+  });
+
+  // 21.2.5.9 RegExp.prototype [ @@search ] ( string )
+  define(RegExp.prototype, $$search, function(string) {
+    var o = strict(this);
+    return orig_search.call(string, o);
+  });
+
+  // 21.2.5.10 get RegExp.prototype.source
+
+  // 21.2.5.11 RegExp.prototype [ @@split ] ( string, limit )
+  define(RegExp.prototype, $$split, function(string, limit) {
+    var o = strict(this);
+    return orig_split.call(string, o, limit);
+  });
+
+  // 21.2.5.12 get RegExp.prototype.sticky
+  // 21.2.5.13 RegExp.prototype.test( S )
+  // 21.2.5.14 RegExp.prototype.toString ( )
+  // 21.2.5.15 get RegExp.prototype.unicode
+
+  // 21.2.6 Properties of RegExp Instances
+  // 21.2.6.1 lastIndex
+
+  // (No polyfillable changes from ES5)
+
+  // ---------------------------------------
+  // 22 Indexed Collections
+  // ---------------------------------------
+
+  // ---------------------------------------
+  // 22.1 Array Objects
+  // ---------------------------------------
+
+  // 22.1.1 The Array Constructor
+  // 22.1.1.1 Array ( )
+  // 22.1.1.2 Array (len)
+  // 22.1.1.3 Array (...items )
+
+  // 22.1.2 Properties of the Array Constructor
+
+  // 22.1.2.1 Array.from ( items [ , mapfn [ , thisArg ] ] )
+  define(
+    Array, 'from',
+    function from(items) {
+      var mapfn = arguments[1];
+      var thisArg = arguments[2];
+
+      var c = strict(this);
+      if (mapfn === undefined) {
+        var mapping = false;
+      } else {
+        if (!IsCallable(mapfn)) throw TypeError();
+        var t = thisArg;
+        mapping = true;
+      }
+      var usingIterator = GetMethod(items, $$iterator);
+      if (usingIterator !== undefined) {
+         if (IsConstructor(c)) {
+          var a = new c();
+        } else {
+          a = new Array(0);
+        }
+        var iterator = GetIterator(items, usingIterator);
+        var k = 0;
+        while (true) {
+          var next = IteratorStep(iterator);
+          if (next === false) {
+            a.length = k;
+            return a;
+          }
+          var nextValue = IteratorValue(next);
+          if (mapping)
+            var mappedValue = mapfn.call(t, nextValue);
+          else
+            mappedValue = nextValue;
+          a[k] = mappedValue;
+          k += 1;
+        }
+      }
+      var arrayLike = ToObject(items);
+      var lenValue = arrayLike.length;
+      var len = ToLength(lenValue);
+      if (IsConstructor(c)) {
+        a = new c(len);
+      } else {
+        a = new Array(len);
+      }
+      k = 0;
+      while (k < len) {
+        var kValue = arrayLike[k];
+        if (mapping)
+          mappedValue = mapfn.call(t, kValue, k);
+        else
+          mappedValue = kValue;
+        a[k] = mappedValue;
+        k += 1;
+      }
+      a.length = len;
+      return a;
+    });
+
+  // 22.1.2.2 Array.isArray ( arg )
+
+  // 22.1.2.3 Array.of ( ...items )
+  define(
+    Array, 'of',
+    function of() {
+      var items = arguments;
+
+      var lenValue = items.length;
+      var len = ToUint32(lenValue);
+      var c = strict(this), a;
+      if (IsConstructor(c)) {
+        a = new c(len);
+        a = ToObject(a);
+      } else {
+        a = new Array(len);
+      }
+      var k = 0;
+      while (k < len) {
+        a[k] = items[k];
+        k += 1;
+      }
+      a.length = len;
+      return a;
+    });
+
+  // 22.1.2.4 Array.prototype
+  // 22.1.2.5 get Array [ @@species ]
+  // 22.1.3 Properties of the Array Prototype Object
+  // 22.1.3.1 Array.prototype.concat ( ...arguments )
+  // 22.1.3.1.1 Runtime Semantics: IsConcatSpreadable ( O )
+  // 22.1.3.2 Array.prototype.constructor
+  // 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
+  define(
+    Array.prototype, 'copyWithin',
+    function copyWithin(target, start/*, end*/) {
+      var end = arguments[2];
+
+      var o = ToObject(this);
+      var lenVal = o.length;
+      var len = ToLength(lenVal);
+      len = max(len, 0);
+      var relativeTarget = ToInteger(target);
+      var to;
+      if (relativeTarget < 0)
+        to = max(len + relativeTarget, 0);
+      else
+        to = min(relativeTarget, len);
+      var relativeStart = ToInteger(start);
+      var from;
+      if (relativeStart < 0)
+        from = max(len + relativeStart, 0);
+      else
+        from = min(relativeStart, len);
+      var relativeEnd;
+      if (end === undefined)
+        relativeEnd = len;
+      else
+        relativeEnd = ToInteger(end);
+      var final;
+      if (relativeEnd < 0)
+        final = max(len + relativeEnd, 0);
+      else
+        final = min(relativeEnd, len);
+      var count = min(final - from, len - to);
+      var direction;
+      if (from < to && to < from + count) {
+        direction = -1;
+        from = from + count - 1;
+        to = to + count - 1;
+      } else {
+        direction = 1;
+      }
+      while (count > 0) {
+        var fromKey = String(from);
+        var toKey = String(to);
+        var fromPresent = HasProperty(o, fromKey);
+        if (fromPresent) {
+          var fromVal = o[fromKey];
+          o[toKey] = fromVal;
+        } else {
+          delete o[toKey];
+        }
+        from = from + direction;
+        to = to + direction;
+        count = count - 1;
+      }
+      return o;
+    });
+
+  // 22.1.3.4 Array.prototype.entries ( )
+  var nativeArrayIteratorMethods =
+        ('entries' in Array.prototype && 'next' in [].entries());
+
+  define(
+    Array.prototype, 'entries',
+    function entries() {
+      return CreateArrayIterator(this, 'key+value');
+    }, !nativeArrayIteratorMethods);
+
+  // 22.1.3.5 Array.prototype.every ( callbackfn [ , thisArg] )
+
+  // 22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
+  define(
+    Array.prototype, 'fill',
+    function fill(value/*, start, end*/) {
+      var start = arguments[1],
+          end = arguments[2];
+
+      var o = ToObject(this);
+      var lenVal = o.length;
+      var len = ToLength(lenVal);
+      len = max(len, 0);
+      var relativeStart = ToInteger(start);
+      var k;
+      if (relativeStart < 0)
+        k = max((len + relativeStart), 0);
+      else
+        k = min(relativeStart, len);
+      var relativeEnd;
+      if (end === undefined)
+        relativeEnd = len;
+      else
+        relativeEnd = ToInteger(end);
+      var final;
+      if (relativeEnd < 0)
+        final = max((len + relativeEnd), 0);
+      else
+        final = min(relativeEnd, len);
+      while (k < final) {
+        var pk = String(k);
+        o[pk] = value;
+        k += 1;
+      }
+      return o;
+    });
+
+  // 22.1.3.7 Array.prototype.filter ( callbackfn [ , thisArg ] )
+
+  // 22.1.3.8 Array.prototype.find ( predicate [ , thisArg ] )
+  define(
+    Array.prototype, 'find',
+    function find(predicate) {
+      var o = ToObject(this);
+      var lenValue = o.length;
+      var len = ToInteger(lenValue);
+      if (!IsCallable(predicate)) throw TypeError();
+      var t = arguments.length > 1 ? arguments[1] : undefined;
+      var k = 0;
+      while (k < len) {
+        var pk = String(k);
+        var kPresent = HasProperty(o, pk);
+        if (kPresent) {
+          var kValue = o[pk];
+          var testResult = predicate.call(t, kValue, k, o);
+          if (Boolean(testResult)) {
+            return kValue;
+          }
+        }
+        ++k;
+      }
+      return undefined;
+    });
+
+  // 22.1.3.9 Array.prototype.findIndex ( predicate [ , thisArg ] )
+  define(
+    Array.prototype, 'findIndex',
+    function findIndex(predicate) {
+      var o = ToObject(this);
+      var lenValue = o.length;
+      var len = ToLength(lenValue);
+      if (!IsCallable(predicate)) throw TypeError();
+      var t = arguments.length > 1 ? arguments[1] : undefined;
+      var k = 0;
+      while (k < len) {
+        var pk = String(k);
+        var kPresent = HasProperty(o, pk);
+        if (kPresent) {
+          var kValue = o[pk];
+          var testResult = predicate.call(t, kValue, k, o);
+          if (Boolean(testResult)) {
+            return k;
+          }
+        }
+        ++k;
+      }
+      return -1;
+    });
+
+  // 22.1.3.10 Array.prototype.forEach ( callbackfn [ , thisArg ] )
+  // 22.1.3.11 Array.prototype.indexOf ( searchElement [ , fromIndex ] )
+  // 22.1.3.12 Array.prototype.join (separator)
+
+  // 22.1.3.13 Array.prototype.keys ( )
+  define(
+    Array.prototype, 'keys',
+    function keys() {
+      return CreateArrayIterator(this, 'key');
+    }, !nativeArrayIteratorMethods);
+
+  // 22.1.3.14 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+  // 22.1.3.15 Array.prototype.map ( callbackfn [ , thisArg ] )
+  // 22.1.3.16 Array.prototype.pop ( )
+  // 22.1.3.17 Array.prototype.push ( ...items )
+  // 22.1.3.18 Array.prototype.reduce ( callbackfn [ , initialValue ] )
+  // 22.1.3.19 Array.prototype.reduceRight ( callbackfn [ , initialValue ] )
+  // 22.1.3.20 Array.prototype.reverse ( )
+  // 22.1.3.21 Array.prototype.shift ( )
+  // 22.1.3.22 Array.prototype.slice (start, end)
+  // 22.1.3.23 Array.prototype.some ( callbackfn [ , thisArg ] )
+  // 22.1.3.24 Array.prototype.sort (comparefn)
+  // 22.1.3.25 Array.prototype.splice (start, deleteCount , ...items )
+  // 22.1.3.26 Array.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
+  // 22.1.3.27 Array.prototype.toString ( )
+  // 22.1.3.28 Array.prototype.unshift ( ...items )
+
+  // 22.1.3.29 Array.prototype.values ( )
+  define(
+    Array.prototype, 'values',
+    function values() {
+      return CreateArrayIterator(this, 'value');
+    }, !nativeArrayIteratorMethods);
+
+  // 22.1.3.30 Array.prototype [ @@iterator ] ( )
+  define(
+    Array.prototype, $$iterator,
+    Array.prototype.values
+    );
+
+  // 22.1.3.31 Array.prototype [ @@unscopables ]
+  // 22.1.4 Properties of Array Instances
+  // 22.1.4.1 length
+
+  // 22.1.5 Array Iterator Objects
+  function ArrayIterator() {}
+
+  // 22.1.5.1 CreateArrayIterator Abstract Operation
+  function CreateArrayIterator(array, kind) {
+    var o = ToObject(array);
+    var iterator = new ArrayIterator;
+    set_internal(iterator, '[[IteratedObject]]', o);
+    set_internal(iterator, '[[ArrayIteratorNextIndex]]', 0);
+    set_internal(iterator, '[[ArrayIterationKind]]', kind);
+    return iterator;
+  }
+
+  // 22.1.5.2 The %ArrayIteratorPrototype% Object
+  var $ArrayIteratorPrototype$ = Object.create($IteratorPrototype$);
+  ArrayIterator.prototype = $ArrayIteratorPrototype$;
+
+  // 22.1.5.2.1 %ArrayIteratorPrototype%. next( )
+  define(
+    $ArrayIteratorPrototype$, 'next',
+    function next() {
+      var o = strict(this);
+      if (Type(o) !== 'object') throw TypeError();
+      var a = o['[[IteratedObject]]'],
+          index = o['[[ArrayIteratorNextIndex]]'],
+          itemKind = o['[[ArrayIterationKind]]'],
+          lenValue = a.length,
+          len = ToUint32(lenValue),
+          elementKey,
+          elementValue;
+      if (itemKind.indexOf('sparse') !== -1) {
+        var found = false;
+        while (!found && index < len) {
+          elementKey = String(index);
+          found = HasProperty(a, elementKey);
+          if (!found) {
+            index += 1;
+          }
+        }
+      }
+      if (index >= len) {
+        set_internal(o, '[[ArrayIteratorNextIndex]]', Infinity);
+        return CreateIterResultObject(undefined, true);
+      }
+      elementKey = index;
+      set_internal(o, '[[ArrayIteratorNextIndex]]', index + 1);
+      if (itemKind.indexOf('value') !== -1)
+        elementValue = a[elementKey];
+      if (itemKind.indexOf('key+value') !== -1)
+        return CreateIterResultObject([elementKey, elementValue], false);
+      if (itemKind.indexOf('key') !== -1)
+        return CreateIterResultObject(elementKey, false);
+      if (itemKind === 'value')
+        return CreateIterResultObject(elementValue, false);
+      throw Error('Internal error');
+    });
+
+  // 22.1.5.2.2 %ArrayIteratorPrototype% [ @@toStringTag ]
+  define($ArrayIteratorPrototype$, $$toStringTag, 'Array Iterator');
+
+  // 22.1.5.3 Properties of Array Iterator Instances
+
+
+  // ---------------------------------------
+  // 22.2 TypedArray Objects
+  // ---------------------------------------
+
+  // See typedarray.js for TypedArray polyfill
+
+  ['Int8Array', 'Uint8Array', 'Uint8ClampedArray',
+   'Int16Array', 'Uint16Array',
+   'Int32Array', 'Uint32Array',
+   'Float32Array', 'Float64Array'].forEach(function ($TypedArrayName$) {
+     if (!($TypedArrayName$ in global))
+       return;
+     var $TypedArray$ = global[$TypedArrayName$];
+
+     // 22.2.1 The %TypedArray% Intrinsic Object
+     // 22.2.1.1 %TypedArray% ( length )
+     // 22.2.1.2 %TypedArray% ( typedArray )
+     // 22.2.1.3 %TypedArray% ( object )
+     // 22.2.1.4 %TypedArray% ( buffer [ , byteOffset [ , length ] ] )
+     // 22.2.1.5 %TypedArray% ( all other argument combinations )
+     // 22.2.2 Properties of the %TypedArray% Intrinsic Object
+
+     // 22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+     define(
+       $TypedArray$, 'from',
+       function from(source) {
+         var mapfn = arguments[1];
+         var thisArg = arguments[2];
+
+         var c = strict(this);
+         if (!IsConstructor(c)) throw TypeError();
+         if (mapfn === undefined) {
+           var mapping = false;
+         } else {
+           if (IsCallable(mapfn)) throw TypeError();
+           var t = thisArg;
+           mapping = true;
+         }
+         var usingIterator = GetMethod(source, $$iterator);
+         if (usingIterator !== undefined) {
+           var iterator = GetIterator(source, usingIterator);
+           var values = [];
+           var next = true;
+           while (next !== false) {
+             next = IteratorStep(iterator);
+             if (next !== false) {
+               var nextValue = IteratorValue(next);
+               values.push(nextValue);
+             }
+           }
+           var len = values.length;
+           var newObj = new c(len);
+           var k = 0;
+           while (k < len) {
+             var kValue = values.shift();
+             if (mapping) {
+               var mappedValue = mapfn.call(t, kValue);
+             } else {
+               mappedValue = kValue;
+             }
+             newObj[k] = mappedValue;
+             ++k;
+           }
+           console.assert(values.length === 0);
+           return newObj;
+         }
+         var arrayLike = ToObject(source);
+         var lenValue = arrayLike.length;
+         len = ToLength(lenValue);
+         newObj = new c(len);
+         k = 0;
+         while (k < len) {
+           kValue = arrayLike[k];
+           if (mapping) {
+             mappedValue = mapfn.call(t, kValue, k);
+           } else {
+             mappedValue = kValue;
+           }
+           newObj[k] = mappedValue;
+           ++k;
+         }
+         return newObj;
+       });
+
+     // 22.2.2.2 %TypedArray%.of ( ...items )
+     define(
+       $TypedArray$, 'of',
+       function of() {
+         var items = arguments;
+
+         var len = items.length;
+         var c = strict(this);
+         var newObj = new c(len);
+         var k = 0;
+         while (k < len) {
+           newObj[k] = items[k];
+           ++k;
+         }
+         return newObj;
+       });
+
+     // 22.2.2.3 %TypedArray%.prototype
+     // 22.2.2.4 get %TypedArray% [ @@species ]
+     // 22.2.3 Properties of the %TypedArrayPrototype% Object
+     // 22.2.3.1 get %TypedArray%.prototype.buffer
+     // 22.2.3.2 get %TypedArray%.prototype.byteLength
+     // 22.2.3.3 get %TypedArray%.prototype.byteOffset
+     // 22.2.3.4 %TypedArray%.prototype.constructor
+
+     // 22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [, end ] )
+     define($TypedArray$.prototype, 'copyWithin', Array.prototype.copyWithin);
+
+     // 22.2.3.6 %TypedArray%.prototype.entries ( )
+     define($TypedArray$.prototype, 'entries', Array.prototype.entries);
+
+     // 22.2.3.7 %TypedArray%.prototype.every ( callbackfn [ , thisArg ] )
+     define($TypedArray$.prototype, 'every', Array.prototype.every);
+
+     // 22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
+     define(
+       $TypedArray$.prototype, 'fill',
+       //Array.prototype.fill // Doesn't work in Safari 7
+       function fill(value/*, start, end*/) {
+         var start = arguments[1],
+             end = arguments[2];
+
+         var o = ToObject(this);
+         var lenVal = o.length;
+         var len = ToLength(lenVal);
+         len = max(len, 0);
+         var relativeStart = ToInteger(start);
+         var k;
+         if (relativeStart < 0) k = max((len + relativeStart), 0);
+         else k = min(relativeStart, len);
+         var relativeEnd;
+         if (end === undefined) relativeEnd = len;
+         else relativeEnd = ToInteger(end);
+         var final;
+         if (relativeEnd < 0) final = max((len + relativeEnd), 0);
+         else final = min(relativeEnd, len);
+         while (k < final) {
+           var pk = String(k);
+           o[pk] = value;
+           k += 1;
+         }
+         return o;
+       });
+
+     // 22.2.3.9 %TypedArray%.prototype.filter ( callbackfn [ , thisArg ] )
+     define(
+       $TypedArray$.prototype, 'filter',
+       function filter(callbackfn) {
+         var thisArg = arguments[1];
+
+         var o = ToObject(this);
+         var lenVal = o.length;
+         var len = ToLength(lenVal);
+         if (!IsCallable(callbackfn)) throw TypeError();
+         var t = thisArg;
+         var c = o.constructor;
+         var kept = [];
+         var k = 0;
+         var captured = 0;
+         while (k < len) {
+           var kValue = o[k];
+           var selected = callbackfn.call(t, kValue, k, o);
+           if (selected) {
+             kept.push(kValue);
+             ++captured;
+           }
+           ++k;
+         }
+         var a = new c(captured);
+         var n = 0;
+         for (var i = 0; i < kept.length; ++i) {
+           var e = kept[i];
+           a[n] = e;
+           ++n;
+         }
+         return a;
+       });
+
+     // 22.2.3.10 %TypedArray%.prototype.find (predicate [ , thisArg ] )
+     define($TypedArray$.prototype, 'find', Array.prototype.find);
+
+     // 22.2.3.11 %TypedArray%.prototype.findIndex ( predicate [ , thisArg ] )
+     define($TypedArray$.prototype, 'findIndex', Array.prototype.findIndex);
+
+     // 22.2.3.12 %TypedArray%.prototype.forEach ( callbackfn [ , thisArg ] )
+     define($TypedArray$.prototype, 'forEach', Array.prototype.forEach);
+
+     // 22.2.3.13 %TypedArray%.prototype.indexOf (searchElement [ , fromIndex ] )
+     define($TypedArray$.prototype, 'indexOf', Array.prototype.indexOf);
+
+     // 22.2.3.14 %TypedArray%.prototype.join ( separator )
+     define($TypedArray$.prototype, 'join', Array.prototype.join);
+
+     // 22.2.3.15 %TypedArray%.prototype.keys ( )
+     define($TypedArray$.prototype, 'keys', Array.prototype.keys);
+
+     // 22.2.3.16 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
+     define($TypedArray$.prototype, 'lastIndexOf', Array.prototype.lastIndexOf);
+
+     // 22.2.3.17 get %TypedArray%.prototype.length
+
+     // 22.2.3.18 %TypedArray%.prototype.map ( callbackfn [ , thisArg ] )
+     define(
+       $TypedArray$.prototype, 'map',
+       function map(callbackfn) {
+         var thisArg = arguments[1];
+
+         var o = ToObject(this);
+         var lenValue = o.length;
+         var len = ToLength(lenValue);
+         if (!IsCallable(callbackfn)) throw TypeError();
+         var t = thisArg;
+         var a = undefined;
+         var c = o.constructor;
+         if (IsConstructor(c))
+           a = new c(len);
+         if (a === undefined)
+           a = new Array(len);
+         var k = 0;
+         while (k < len) {
+           var kPresent = HasProperty(o, k);
+           if (kPresent) {
+             var kValue = o[k];
+             var mappedValue = callbackfn.call(t, kValue, k, o);
+             a[k] = mappedValue;
+           }
+           ++k;
+         }
+         return a;
+       });
+
+     // 22.2.3.19 %TypedArray%.prototype.reduce ( callbackfn [, initialValue] )
+     define($TypedArray$.prototype, 'reduce', Array.prototype.reduce);
+
+     // 22.2.3.20 %TypedArray%.prototype.reduceRight ( callbackfn [, initialValue] )
+     define($TypedArray$.prototype, 'reduceRight', Array.prototype.reduceRight);
+
+     // 22.2.3.21 %TypedArray%.prototype.reverse ( )
+     define($TypedArray$.prototype, 'reverse', Array.prototype.reverse);
+
+     // 22.2.3.22 %TypedArray%.prototype.set ( overloaded [ , offset ])
+     // 22.2.3.22.1 %TypedArray%.prototype.set (array [ , offset ] )
+     // 22.2.3.22.2 %TypedArray%.prototype.set(typedArray [, offset ] )
+
+     // 22.2.3.23 %TypedArray%.prototype.slice ( start, end )
+     define(
+       $TypedArray$.prototype, 'slice',
+       function slice(start, end) {
+         var o = ToObject(this);
+         var lenVal = o.length;
+         var len = ToLength(lenVal);
+         var relativeStart = ToInteger(start);
+         var k = (relativeStart < 0) ? max(len + relativeStart, 0) : min(relativeStart, len);
+         var relativeEnd = (end === undefined) ? len : ToInteger(end);
+         var final = (relativeEnd < 0) ? max(len + relativeEnd, 0) : min(relativeEnd, len);
+         var count = final - k;
+         var c = o.constructor;
+         if (IsConstructor(c)) {
+           var a = new c(count);
+         } else {
+           throw TypeError();
+         }
+         var n = 0;
+         while (k < final) {
+           var kValue = o[k];
+           a[n] = kValue;
+           ++k;
+           ++n;
+         }
+         return a;
+       });
+
+     // 22.2.3.24 %TypedArray%.prototype.some ( callbackfn [ , thisArg ] )
+     define($TypedArray$.prototype, 'some', Array.prototype.some);
+
+     // 22.2.3.25 %TypedArray%.prototype.sort ( comparefn )
+     define(
+       $TypedArray$.prototype, 'sort',
+       function sort() {
+         var comparefn = arguments[0];
+
+         function sortCompare(x, y) {
+           console.assert(Type(x) === 'number' && Type(y) === 'number');
+           if (x !== x && y !== y) return +0;
+           if (x !== x) return 1;
+           if (y !== y) return -1;
+           if (comparefn !== undefined) {
+             return comparefn(x, y);
+           }
+           if (x < y) return -1;
+           if (x > y) return 1;
+           return +0;
+         }
+         return Array.prototype.sort.call(this, sortCompare);
+       });
+
+     // 22.2.3.26 %TypedArray%.prototype.subarray( [ begin [ , end ] ] )
+     // 22.2.3.27 %TypedArray%.prototype.toLocaleString ([ reserved1 [ , reserved2 ] ])
+     // 22.2.3.28 %TypedArray%.prototype.toString ( )
+
+     // 22.2.3.29 %TypedArray%.prototype.values ( )
+     define($TypedArray$.prototype, 'values', Array.prototype.values);
+
+     // 22.2.3.30 %TypedArray%.prototype [ @@iterator ] ( )
+     define(
+       $TypedArray$.prototype, $$iterator,
+       $TypedArray$.prototype.values
+     );
+
+     // 22.2.3.31 get %TypedArray%.prototype [ @@toStringTag ]
+     define($TypedArray$.prototype, $$toStringTag, $TypedArrayName$);
+
+     // 22.2.4 The TypedArray Constructors
+     // 22.2.4.1TypedArray( ... argumentsList)
+     // 22.2.5 Properties of the TypedArray Constructors
+     // 22.2.5.1 TypedArray.BYTES_PER_ELEMENT
+     // 22.2.5.2 TypedArray.prototype
+     // 22.2.6 Properties of TypedArray Prototype Objects
+     // 22.2.6.1 TypedArray.prototype.BYTES_PER_ELEMENT
+     // 22.2.6.2 TypedArray.prototype.constructor
+     // 22.2.7 Properties of TypedArray Instances
+   });
+
+  // ---------------------------------------
+  // 23 Keyed Collection
+  // ---------------------------------------
+
+  // ---------------------------------------
+  // 23.1 Map Objects
+  // ---------------------------------------
+
+  (function() {
+    // 23.1.1 The Map Constructor
+
+    // 23.1.1.1 Map ( [ iterable ] )
+    /** @constructor */
+    function Map(/*iterable*/) {
+      var map = strict(this);
+      var iterable = arguments[0];
+
+      if (Type(map) !== 'object') throw TypeError();
+      if ('[[MapData]]' in map) throw TypeError();
+
+      if (iterable !== undefined) {
+        var adder = map['set'];
+        if (!IsCallable(adder)) throw TypeError();
+        var iter = GetIterator(ToObject(iterable));
+      }
+      set_internal(map, '[[MapData]]', { keys: [], values: [] });
+      if (iter === undefined) return map;
+      while (true) {
+        var next = IteratorStep(iter);
+        if (next === false)
+          return map;
+        var nextItem = IteratorValue(next);
+        if (Type(nextItem) !== 'object') throw TypeError();
+        var k = nextItem[0];
+        var v = nextItem[1];
+        adder.call(map, k, v);
+      }
+
+      return map;
+    }
+
+    if (!('Map' in global) || OVERRIDE_NATIVE_FOR_TESTING ||
+        (function() { try { new global.Map([]); return false; } catch (_) { return true; } }()) ||
+        (function() { try { return !new global.Map().entries().next; } catch (_) { return true; } }()) ||
+        (new global.Map([['a', 1]]).size !== 1))
+      global.Map = Map;
+
+
+    function MapDataIndexOf(mapData, key) {
+      var i;
+      if (key === key) return mapData.keys.indexOf(key);
+      // Slow case for NaN
+      for (i = 0; i < mapData.keys.length; i += 1)
+        if (SameValueZero(mapData.keys[i], key)) return i;
+      return -1;
+    }
+
+    // 23.1.1.2 new Map ( ... argumentsList )
+    // 23.1.2 Properties of the Map Constructor
+    // 23.1.2.1 Map.prototype
+    var $MapPrototype$ = {};
+    Map.prototype = $MapPrototype$;
+
+    // 23.1.2.2 get Map [ @@species ]
+
+    // 23.1.3 Properties of the Map Prototype Object
+    // 23.1.3.1 Map.prototype.clear ()
+    define(
+      Map.prototype, 'clear',
+      function clear() {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+        entries.keys.length = 0;
+        entries.values.length = 0;
+        return undefined;
+      });
+
+    // 23.1.3.2 Map.prototype.constructor
+
+    // 23.1.3.3 Map.prototype.delete ( key )
+    define(
+      Map.prototype, 'delete',
+      function delete_(key) {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+        var i = MapDataIndexOf(entries, key);
+        if (i < 0) return false;
+        entries.keys[i] = empty;
+        entries.values[i] = empty;
+        return true;
+      });
+
+    // 23.1.3.4 Map.prototype.entries ( )
+    define(
+      Map.prototype, 'entries',
+      function entries() {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        return CreateMapIterator(m, 'key+value');
+      });
+
+    // 23.1.3.5 Map.prototype.forEach ( callbackfn [ , thisArg ] )
+    define(
+      Map.prototype, 'forEach',
+      function forEach(callbackfn /*, thisArg*/) {
+        var thisArg = arguments[1];
+
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+
+        if (!IsCallable(callbackfn)) {
+          throw TypeError('First argument to forEach is not callable.');
+        }
+        for (var i = 0; i < entries.keys.length; ++i) {
+          if (entries.keys[i] !== empty) {
+            callbackfn.call(thisArg, entries.values[i], entries.keys[i], m);
+          }
+        }
+        return undefined;
+      });
+
+    // 23.1.3.6 Map.prototype.get ( key )
+    define(
+      Map.prototype, 'get',
+      function get(key) {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+        var i = MapDataIndexOf(entries, key);
+        if (i >= 0) return entries.values[i];
+        return undefined;
+      });
+
+    // 23.1.3.7 Map.prototype.has ( key )
+    define(
+      Map.prototype, 'has',
+      function has(key) {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+        if (MapDataIndexOf(entries, key) >= 0) return true;
+        return false;
+      });
+
+    // 23.1.3.8 Map.prototype.keys ( )
+    define(
+      Map.prototype, 'keys',
+      function keys() {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        return CreateMapIterator(m, 'key');
+      });
+
+    // 23.1.3.9 Map.prototype.set ( key , value )
+    define(
+      Map.prototype, 'set',
+      function set(key, value) {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        if (!('[[MapData]]' in m)) throw TypeError();
+        if (m['[[MapData]]'] === undefined) throw TypeError();
+        var entries = m['[[MapData]]'];
+        var i = MapDataIndexOf(entries, key);
+        if (i < 0) i = entries.keys.length;
+        if (SameValue(key, -0)) key = 0;
+        entries.keys[i] = key;
+        entries.values[i] = value;
+        return m;
+      });
+
+    // 23.1.3.10 get Map.prototype.size
+    Object.defineProperty(
+      Map.prototype, 'size', {
+        get: function() {
+          var m = strict(this);
+          if (Type(m) !== 'object') throw TypeError();
+          if (!('[[MapData]]' in m)) throw TypeError();
+          if (m['[[MapData]]'] === undefined) throw TypeError();
+          var entries = m['[[MapData]]'];
+          var count = 0;
+          for (var i = 0; i < entries.keys.length; ++i) {
+            if (entries.keys[i] !== empty)
+              count = count + 1;
+          }
+          return count;
+        }
+      });
+
+    // 23.1.3.11 Map.prototype.values ( )
+    define(
+      Map.prototype, 'values',
+      function values() {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        return CreateMapIterator(m, 'value');
+      });
+
+    // 23.1.3.12 Map.prototype [ @@iterator ]( )
+    define(
+      Map.prototype, $$iterator,
+      function() {
+        var m = strict(this);
+        if (Type(m) !== 'object') throw TypeError();
+        return CreateMapIterator(m, 'key+value');
+      });
+
+    // 23.1.3.13 Map.prototype [ @@toStringTag ]
+    define(global.Map.prototype, $$toStringTag, 'Map');
+
+    // 23.1.4 Properties of Map Instances
+    // 23.1.5 Map Iterator Objects
+
+    /** @constructor */
+    function MapIterator() {}
+
+    // 23.1.5.1 CreateMapIterator Abstract Operation
+    function CreateMapIterator(map, kind) {
+      if (Type(map) !== 'object') throw TypeError();
+      if (!('[[MapData]]' in map)) throw TypeError();
+      if (map['[[MapData]]'] === undefined) throw TypeError();
+      var iterator = new MapIterator;
+      set_internal(iterator, '[[Map]]', map);
+      set_internal(iterator, '[[MapNextIndex]]', 0);
+      set_internal(iterator, '[[MapIterationKind]]', kind);
+      return iterator;
+    }
+
+    // 23.1.5.2 The %MapIteratorPrototype% Object
+    var $MapIteratorPrototype$ = Object.create($IteratorPrototype$);
+    MapIterator.prototype = $MapIteratorPrototype$;
+
+    // 23.1.5.2.1 %MapIteratorPrototype%.next ( )
+    define(
+      $MapIteratorPrototype$, 'next',
+      function next() {
+        var o = strict(this);
+        if (Type(o) !== 'object') throw TypeError();
+        var m = o['[[Map]]'],
+            index = o['[[MapNextIndex]]'],
+            itemKind = o['[[MapIterationKind]]'],
+            entries = m['[[MapData]]'];
+        while (index < entries.keys.length) {
+          var e = {key: entries.keys[index], value: entries.values[index]};
+          index = index += 1;
+          set_internal(o, '[[MapNextIndex]]', index);
+          if (e.key !== empty) {
+            if (itemKind === 'key') {
+              return CreateIterResultObject(e.key, false);
+            } else if (itemKind === 'value') {
+              return CreateIterResultObject(e.value, false);
+            } else {
+              return CreateIterResultObject([e.key, e.value], false);
+            }
+          }
+        }
+        return CreateIterResultObject(undefined, true);
+      });
+
+    // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
+    define($MapIteratorPrototype$, $$toStringTag, 'Map Iterator');
+
+    // 23.1.5.3 Properties of Map Iterator Instances
+  }());
+
+  // ---------------------------------------
+  // 23.2 Set Objects
+  // ---------------------------------------
+
+  (function() {
+    // 23.2.1 The Set Constructor
+    // 23.2.1.1 Set ( [ iterable ] )
+
+    /** @constructor */
+    function Set(/*iterable*/) {
+      var set = strict(this);
+      var iterable = arguments[0];
+
+      if (Type(set) !== 'object') throw TypeError();
+      if ('[[SetData]]' in set) throw TypeError();
+
+      if (iterable !== undefined) {
+        var adder = set['add'];
+        if (!IsCallable(adder)) throw TypeError();
+        var iter = GetIterator(ToObject(iterable));
+      }
+      set_internal(set, '[[SetData]]', []);
+      if (iter === undefined) return set;
+      while (true) {
+        var next = IteratorStep(iter);
+        if (next === false)
+          return set;
+        var nextValue = IteratorValue(next);
+        adder.call(set, nextValue);
+      }
+
+      return set;
+    }
+
+    if (!('Set' in global) || OVERRIDE_NATIVE_FOR_TESTING ||
+        (function() { try { return !new global.Set().entries().next; } catch (_) { return true; } }()) ||
+        (new global.Set([1]).size !== 1))
+      global.Set = Set;
+
+    function SetDataIndexOf(setData, key) {
+      var i;
+      if (key === key)
+        return setData.indexOf(key);
+      // Slow case for NaN
+      for (i = 0; i < setData.length; i += 1)
+        if (SameValueZero(setData[i], key)) return i;
+      return -1;
+    }
+
+    // 23.2.1.2 new Set ( ...argumentsList )
+    // 23.2.2 Properties of the Set Constructor
+
+    // 23.2.2.1 Set.prototype
+    var $SetPrototype$ =  {};
+    Set.prototype = $SetPrototype$;
+
+    // 23.2.2.2 get Set [ @@species ]
+    // 23.2.3 Properties of the Set Prototype Object
+
+    // 23.2.3.1 Set.prototype.add (value )
+    define(
+      Set.prototype, 'add',
+      function add(value) {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        if (!('[[SetData]]' in s)) throw TypeError();
+        if (s['[[SetData]]'] === undefined) throw TypeError();
+        if (SameValue(value, -0)) value = 0;
+        var entries = s['[[SetData]]'];
+        var i = SetDataIndexOf(entries, value);
+        if (i < 0) i = s['[[SetData]]'].length;
+        s['[[SetData]]'][i] = value;
+
+        return s;
+      });
+
+    // 23.2.3.2 Set.prototype.clear ()
+    define(
+      Set.prototype, 'clear',
+      function clear() {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        if (!('[[SetData]]' in s)) throw TypeError();
+        if (s['[[SetData]]'] === undefined) throw TypeError();
+        var entries = s['[[SetData]]'];
+        entries.length = 0;
+        return undefined;
+      });
+
+    // 23.2.3.3 Set.prototype.constructor
+    // 23.2.3.4 Set.prototype.delete ( value )
+    define(
+      Set.prototype, 'delete',
+      function delete_(value) {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        if (!('[[SetData]]' in s)) throw TypeError();
+        if (s['[[SetData]]'] === undefined) throw TypeError();
+        var entries = s['[[SetData]]'];
+        var i = SetDataIndexOf(entries, value);
+        if (i < 0) return false;
+        entries[i] = empty;
+        return true;
+      });
+
+    // 23.2.3.5 Set.prototype.entries ( )
+    define(
+      Set.prototype, 'entries',
+      function entries() {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        return CreateSetIterator(s, 'key+value');
+      });
+
+    // 23.2.3.6 Set.prototype.forEach ( callbackfn [ , thisArg ] )
+    define(
+      Set.prototype, 'forEach',
+      function forEach(callbackfn/*, thisArg*/) {
+        var thisArg = arguments[1];
+
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        if (!('[[SetData]]' in s)) throw TypeError();
+        if (s['[[SetData]]'] === undefined) throw TypeError();
+        var entries = s['[[SetData]]'];
+
+        if (!IsCallable(callbackfn)) {
+          throw TypeError('First argument to forEach is not callable.');
+        }
+        for (var i = 0; i < entries.length; ++i) {
+          if (entries[i] !== empty) {
+            callbackfn.call(thisArg, entries[i], entries[i], s);
+          }
+        }
+      });
+
+    // 23.2.3.7 Set.prototype.has ( value )
+    define(
+      Set.prototype, 'has',
+      function has(key) {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        if (!('[[SetData]]' in s)) throw TypeError();
+        if (s['[[SetData]]'] === undefined) throw TypeError();
+        var entries = s['[[SetData]]'];
+        return SetDataIndexOf(entries, key) !== -1;
+      });
+
+    // 23.2.3.8 Set.prototype.keys ( )
+    // See Set.prototype.values
+
+    // 23.2.3.9 get Set.prototype.size
+    Object.defineProperty(
+      Set.prototype, 'size', {
+        get: function() {
+          var s = strict(this);
+          if (Type(s) !== 'object') throw TypeError();
+          if (!('[[SetData]]' in s)) throw TypeError();
+          if (s['[[SetData]]'] === undefined) throw TypeError();
+          var entries = s['[[SetData]]'];
+          var count = 0;
+          for (var i = 0; i < entries.length; ++i) {
+            if (entries[i] !== empty)
+              count = count + 1;
+          }
+          return count;
+        }
+      });
+
+    // 23.2.3.10 Set.prototype.values ( )
+    define(
+      Set.prototype, 'values',
+      function values() {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        return CreateSetIterator(s, 'value');
+      });
+    // NOTE: function name is still 'values':
+    Set.prototype.keys = Set.prototype.values;
+
+    // 23.2.3.11 Set.prototype [@@iterator ] ( )
+    define(
+      Set.prototype, $$iterator,
+      function() {
+        var s = strict(this);
+        if (Type(s) !== 'object') throw TypeError();
+        return CreateSetIterator(s);
+      });
+
+    // 23.2.3.12 Set.prototype [ @@toStringTag ]
+    define(global.Set.prototype, $$toStringTag, 'Set');
+
+    // 23.2.4 Properties of Set Instances
+    // 23.2.5 Set Iterator Objects
+    /** @constructor */
+    function SetIterator() {}
+
+    // 23.2.5.1 CreateSetIterator Abstract Operation
+    function CreateSetIterator(set, kind) {
+      if (Type(set) !== 'object') throw TypeError();
+      if (!('[[SetData]]' in set)) throw TypeError();
+      if (set['[[SetData]]'] === undefined) throw TypeError();
+      var iterator = new SetIterator;
+      set_internal(iterator, '[[IteratedSet]]', set);
+      set_internal(iterator, '[[SetNextIndex]]', 0);
+      set_internal(iterator, '[[SetIterationKind]]', kind);
+      return iterator;
+    }
+
+    // 23.2.5.2 The %SetIteratorPrototype% Object
+    var $SetIteratorPrototype$ = Object.create($IteratorPrototype$);
+    SetIterator.prototype = $SetIteratorPrototype$;
+
+    // 23.2.5.2.1 %SetIteratorPrototype%.next( )
+    define(
+      $SetIteratorPrototype$, 'next',
+      function next() {
+        var o = strict(this);
+        if (Type(o) !== 'object') throw TypeError();
+        var s = o['[[IteratedSet]]'],
+            index = o['[[SetNextIndex]]'],
+            itemKind = o['[[SetIterationKind]]'],
+            entries = s['[[SetData]]'];
+        while (index < entries.length) {
+          var e = entries[index];
+          index = index += 1;
+          set_internal(o, '[[SetNextIndex]]', index);
+          if (e !== empty) {
+            if (itemKind === 'key+value')
+              return CreateIterResultObject([e, e], false);
+            return CreateIterResultObject(e, false);
+          }
+        }
+        return CreateIterResultObject(undefined, true);
+      });
+
+    // 23.2.5.2.2 %SetIteratorPrototype% [ @@toStringTag ]
+    define($SetIteratorPrototype$, $$toStringTag, 'Set Iterator');
+
+    // 23.2.5.3 Properties of Set Iterator Instances
+
+  }());
+
+  // ---------------------------------------
+  // 23.3 WeakMap Objects
+  // ---------------------------------------
+
+  (function() {
+    // 23.3.1 The WeakMap Constructor
+    // 23.3.1.1 WeakMap ( [ iterable ] )
+    /** @constructor */
+    function WeakMap(/*iterable*/) {
+      var map = strict(this);
+      var iterable = arguments[0];
+
+      if (Type(map) !== 'object') throw TypeError();
+      if ('[[WeakMapData]]' in map) throw TypeError();
+
+      if (iterable !== undefined) {
+        var adder = map['set'];
+        if (!IsCallable(adder)) throw TypeError();
+        var iter = GetIterator(ToObject(iterable));
+      }
+      set_internal(map, '[[WeakMapData]]', new EphemeronTable);
+      if (iter === undefined) return map;
+      while (true) {
+        var next = IteratorStep(iter);
+        if (next === false)
+          return map;
+        var nextValue = IteratorValue(next);
+        if (Type(nextValue) !== 'object') throw TypeError();
+        var k = nextValue[0];
+        var v = nextValue[1];
+        adder.call(map, k, v);
+      }
+
+      return map;
+    }
+
+    if (!('WeakMap' in global) || OVERRIDE_NATIVE_FOR_TESTING)
+      global.WeakMap = WeakMap;
+
+    // 23.3.2 Properties of the WeakMap Constructor
+    // 23.3.2.1 WeakMap.prototype
+    var $WeakMapPrototype$ = {};
+    WeakMap.prototype = $WeakMapPrototype$;
+
+
+
+   // 23.3.2.2 WeakMap[ @@create ] ( )
+    // 23.3.3 Properties of the WeakMap Prototype Object
+
+    // 23.3.3.1 WeakMap.prototype.constructor
+
+    // 23.3.3.2 WeakMap.prototype.delete ( key )
+    define(
+      WeakMap.prototype, 'delete',
+      function delete_(key) {
+        var M = strict(this);
+        if (Type(M) !== 'object') throw TypeError();
+        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
+        if (Type(key) !== 'object') throw TypeError('Expected object');
+        return M['[[WeakMapData]]'].remove(key);
+      });
+
+    // 23.3.3.3 WeakMap.prototype.get ( key )
+    define(
+      WeakMap.prototype, 'get',
+      function get(key, defaultValue) {
+        var M = strict(this);
+        if (Type(M) !== 'object') throw TypeError();
+        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
+        if (Type(key) !== 'object') throw TypeError('Expected object');
+        return M['[[WeakMapData]]'].get(key, defaultValue);
+      });
+
+    // 23.3.3.4 WeakMap.prototype.has ( key )
+    define(
+      WeakMap.prototype, 'has',
+      function has(key) {
+        var M = strict(this);
+        if (Type(M) !== 'object') throw TypeError();
+        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
+        if (Type(key) !== 'object') throw TypeError('Expected object');
+        return M['[[WeakMapData]]'].has(key);
+      });
+
+    // 23.3.3.5 WeakMap.prototype.set ( key , value )
+    define(
+      WeakMap.prototype, 'set',
+      function set(key, value) {
+        var M = strict(this);
+        if (Type(M) !== 'object') throw TypeError();
+        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
+        if (Type(key) !== 'object') throw TypeError('Expected object');
+        M['[[WeakMapData]]'].set(key, value);
+        return M;
+      });
+
+    // 23.3.3.6 WeakMap.prototype [ @@toStringTag ]
+    define(global.WeakMap.prototype, $$toStringTag, 'WeakMap');
+
+    // 23.3.4 Properties of WeakMap Instances
+
+    // Polyfills for incomplete native implementations:
+    (function() {
+      var wm = new global.WeakMap();
+      var orig = global.WeakMap.prototype.set;
+      define(global.WeakMap.prototype, 'set', function set() {
+        orig.apply(this, arguments);
+        return this;
+      }, wm.set({}, 0) !== wm);
+    }());
+  }());
+
+  // ---------------------------------------
+  // 23.4 WeakSet Objects
+  // ---------------------------------------
+
+  (function() {
+    // 23.4.1 The WeakSet Constructor
+    // 23.4.1.1 WeakSet ( [ iterable ] )
+    /** @constructor */
+    function WeakSet(/*iterable*/) {
+      var set = strict(this);
+      var iterable = arguments[0];
+
+      if (Type(set) !== 'object') throw TypeError();
+      if ('[[WeakSetData]]' in set) throw TypeError();
+
+      if (iterable !== undefined) {
+        var adder = set['add'];
+        if (!IsCallable(adder)) throw TypeError();
+        var iter = GetIterator(ToObject(iterable));
+      }
+      set_internal(set, '[[WeakSetData]]', new EphemeronTable);
+      if (iter === undefined) return set;
+      while (true) {
+        var next = IteratorStep(iter);
+        if (next === false)
+          return set;
+        var nextValue = IteratorValue(next);
+        adder.call(set, nextValue);
+      }
+
+      return set;
+    }
+
+    if (!('WeakSet' in global) || OVERRIDE_NATIVE_FOR_TESTING)
+      global.WeakSet = WeakSet;
+
+    // 23.4.2 Properties of the WeakSet Constructor
+    // 23.4.2.1 WeakSet.prototype
+    var $WeakSetPrototype$ = {};
+    WeakSet.prototype = $WeakSetPrototype$;
+
+    // 23.4.3 Properties of the WeakSet Prototype Object
+    // 23.4.3.1 WeakSet.prototype.add (value )
+    define(
+      WeakSet.prototype, 'add',
+      function add(value) {
+        var S = strict(this);
+        if (Type(S) !== 'object') throw TypeError();
+        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
+        if (Type(value) !== 'object') throw TypeError('Expected object');
+        S['[[WeakSetData]]'].set(value, true);
+        return S;
+      });
+
+    // 23.4.3.2 WeakSet.prototype.constructor
+    // 23.4.3.3 WeakSet.prototype.delete ( value )
+    define(
+      WeakSet.prototype, 'delete',
+      function delete_(value) {
+        var S = strict(this);
+        if (Type(S) !== 'object') throw TypeError();
+        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
+        if (Type(value) !== 'object') throw TypeError('Expected object');
+        return S['[[WeakSetData]]'].remove(value);
+      });
+
+    // 23.4.3.4 WeakSet.prototype.has ( value )
+    define(
+      WeakSet.prototype, 'has',
+      function has(key) {
+        var S = strict(this);
+        if (Type(S) !== 'object') throw TypeError();
+        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
+        if (Type(key) !== 'object') throw TypeError('Expected object');
+        return S['[[WeakSetData]]'].has(key);
+      });
+
+    // 23.4.3.5 WeakSet.prototype [ @@toStringTag ]
+    define(global.WeakSet.prototype, $$toStringTag, 'WeakSet');
+
+    // 23.4.4 Properties of WeakSet Instances
+
+    // Polyfills for incomplete native implementations:
+    (function() {
+      var ws = new global.WeakSet();
+      var orig = global.WeakSet.prototype.add;
+      define(global.WeakSet.prototype, 'add', function add() {
+        orig.apply(this, arguments);
+        return this;
+      }, ws.add({}) !== ws);
+    }());
+  }());
+
+  // ---------------------------------------
+  // 24 Structured Data
+  // ---------------------------------------
+
+  // ---------------------------------------
+  // 24.1 ArrayBuffer Objects
+  // ---------------------------------------
+
+  // See typedarray.js for TypedArray polyfill
+
+  (function() {
+    if (!('ArrayBuffer' in global))
+      return;
+
+    // 24.1.1 Abstract Operations For ArrayBuffer Objects
+    // 24.1.1.1 AllocateArrayBuffer( constructor, byteLength )
+    // 24.1.1.2 IsDetachedBuffer( arrayBuffer )
+    // 24.1.1.3 DetachArrayBuffer( arrayBuffer )
+    // 24.1.1.4 CloneArrayBuffer( srcBuffer, srcByteOffset [, cloneConstructor] )
+    // 24.1.1.5 GetValueFromBuffer ( arrayBuffer, byteIndex, type, isLittleEndian )
+    // 24.1.1.6 SetValueInBuffer ( arrayBuffer, byteIndex, type, value, isLittleEndian )
+    // 24.1.2 The ArrayBuffer Constructor
+    // 24.1.2.1 ArrayBuffer( length )
+    // 24.1.3 Properties of the ArrayBuffer Constructor
+
+    // 24.1.3.1 ArrayBuffer.isView ( arg )
+    define(
+      ArrayBuffer, 'isView',
+      function isView(arg) {
+        if (Type(arg) !== 'object') return false;
+        if ('buffer' in arg && arg.buffer instanceof ArrayBuffer) return true;
+        return false;
+      });
+
+    // 24.1.3.2 ArrayBuffer.prototype
+    // 24.1.3.3 get ArrayBuffer [ @@species ]
+    // 24.1.4 Properties of the ArrayBuffer Prototype Object
+    // 24.1.4.1 get ArrayBuffer.prototype.byteLength
+    // 24.1.4.2 ArrayBuffer.prototype.constructor
+    // 24.1.4.3 ArrayBuffer.prototype.slice ( start , end)
+
+    // 24.1.4.4 ArrayBuffer.prototype [ @@toStringTag ]
+    define(ArrayBuffer.prototype, $$toStringTag, 'ArrayBuffer');
+
+    // 24.1.5 Properties of the ArrayBuffer Instances
+  }());
+
+  // ---------------------------------------
+  // 24.2 DataView Objects
+  // ---------------------------------------
+
+  // See typedarray.js for TypedArray polyfill
+
+  (function() {
+    if (!('DataView' in global))
+      return;
+
+    // 24.2.1 Abstract Operations For DataView Objects
+    // 24.2.1.1 GetViewValue(view, requestIndex, isLittleEndian, type)
+    // 24.2.1.2 SetViewValue(view, requestIndex, isLittleEndian, type, value)
+    // 24.2.2 The DataView Constructor
+    // 24.2.2.1 DataView (buffer [ , byteOffset [ , byteLength ] ] )
+    // 24.2.3 Properties of the DataView Constructor
+    // 24.2.3.1 DataView.prototype
+    // 24.2.4 Properties of the DataView Prototype Object
+    // 24.2.4.1 get DataView.prototype.buffer
+    // 24.2.4.2 get DataView.prototype.byteLength
+    // 24.2.4.3 get DataView.prototype.byteOffset
+    // 24.2.4.4 DataView.prototype.constructor
+    // 24.2.4.5 DataView.prototype.getFloat32 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.6 DataView.prototype.getFloat64 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.7 DataView.prototype.getInt8 ( byteOffset )
+    // 24.2.4.8 DataView.prototype.getInt16 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.9 DataView.prototype.getInt32 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.10 DataView.prototype.getUint8 ( byteOffset )
+    // 24.2.4.11 DataView.prototype.getUint16 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.12 DataView.prototype.getUint32 ( byteOffset [ , littleEndian ] )
+    // 24.2.4.13 DataView.prototype.setFloat32 ( byteOffset, value [ , littleEndian ] )
+    // 24.2.4.14 DataView.prototype.setFloat64 ( byteOffset, value [ , littleEndian ] )
+    // 24.2.4.15 DataView.prototype.setInt8 ( byteOffset, value )
+    // 24.2.4.16 DataView.prototype.setInt16 ( byteOffset, value [ , littleEndian ] )
+    // 24.2.4.17 DataView.prototype.setInt32 ( byteOffset, value [ , littleEndian ] )
+    // 24.2.4.18 DataView.prototype.setUint8 ( byteOffset, value )
+    // 24.2.4.19 DataView.prototype.setUint16 ( byteOffset, value [ , littleEndian ] )
+    // 24.2.4.20 DataView.prototype.setUint32 ( byteOffset, value [ , littleEndian ] )
+
+    // 24.2.4.21 DataView.prototype[ @@toStringTag ]
+    define(DataView.prototype, $$toStringTag, 'DataView');
+
+    // 24.2.5 Properties of DataView Instances
+  }());
+
+  // ---------------------------------------
+  // 24.3 The JSON Object
+  // ---------------------------------------
+
+  // 24.3.1 JSON.parse ( text [ , reviver ] )
+  // 24.3.2 JSON.stringify ( value [ , replacer [ , space ] ] )
+  // 24.3.3 JSON [ @@toStringTag ]
+  define(JSON, $$toStringTag, 'JSON');
+
+  // ---------------------------------------
+  // 25.1 Iteration
+  // ---------------------------------------
+
+  // 25.1.1 Common Iteration Interfaces
+  // 25.1.1.1 The Iterable Interface
+  // 25.1.1.2 The Iterator Interface
+  // 25.1.1.3 The IteratorResult Interface
+
+  // 25.1.2 The %IteratorPrototype% Object
+  // Defined earlier, so other prototypes can reference it.
+  // 25.1.2.1 %IteratorPrototype% [ @@iterator ] ( )
+  define($IteratorPrototype$, $$iterator, function() {
+    return this;
+  });
+
+
+  // ---------------------------------------
+  // 25.4 Promise Objects
+  // ---------------------------------------
+
+  (function() {
+    // 25.4 Promise Objects
+
+    // 25.4.1 Promise Abstract Operations
+
+    // 25.4.1.1 PromiseCapability Records
+    // 25.4.1.1.1 IfAbruptRejectPromise ( value, capability )
+
+    function IfAbruptRejectPromise(value, capability) {
+      var rejectResult = capability['[[Reject]]'].call(undefined, value);
+      return capability['[[Promise]]'];
+    }
+
+    // 25.4.1.2 PromiseReaction Records
+
+    // 25.4.1.3 CreateResolvingFunctions ( promise )
+
+    function CreateResolvingFunctions(promise) {
+      var alreadyResolved = {'[[value]]': false};
+      var resolve = PromiseResolveFunction();
+      set_internal(resolve, '[[Promise]]',  promise);
+      set_internal(resolve, '[[AlreadyResolved]]', alreadyResolved);
+      var reject = PromiseRejectFunction();
+      set_internal(reject, '[[Promise]]', promise);
+      set_internal(reject, '[[AlreadyResolved]]', alreadyResolved);
+      return { '[[Resolve]]': resolve, '[[Reject]]': reject};
+    }
+
+    // 25.4.1.3.1 Promise Reject Functions
+
+    function PromiseRejectFunction() {
+      var F = function(reason) {
+        console.assert(Type(F['[[Promise]]']) === 'object');
+        var promise = F['[[Promise]]'];
+        var alreadyResolved = F['[[AlreadyResolved]]'];
+        if (alreadyResolved['[[value]]']) return undefined;
+        set_internal(alreadyResolved, '[[value]]', true);
+        return RejectPromise(promise, reason);
+      };
+      return F;
+    }
+
+    // 25.4.1.3.2 Promise Resolve Functions
+
+    function PromiseResolveFunction() {
+      var F = function(resolution) {
+        console.assert(Type(F['[[Promise]]']) === 'object');
+        var promise = F['[[Promise]]'];
+        var alreadyResolved = F['[[AlreadyResolved]]'];
+        if (alreadyResolved['[[value]]']) return undefined;
+        set_internal(alreadyResolved, '[[value]]', true);
+
+        if (SameValue(resolution, promise))  {
+          var selfResolutionError = TypeError();
+          return RejectPromise(promise, selfResolutionError);
+        }
+        if (Type(resolution) !== 'object')
+          return FulfillPromise(promise, resolution);
+        try {
+          var then = resolution['then'];
+        } catch(then) {
+          return RejectPromise(promise, then);
+        }
+        if (!IsCallable(then))
+          return FulfillPromise(promise, resolution);
+        EnqueueJob('PromiseJobs', PromiseResolveThenableJob, [promise, resolution, then]);
+        return undefined;
+      };
+      return F;
+    }
+
+    // 25.4.1.4 FulfillPromise ( promise, value )
+
+    function FulfillPromise(promise, value) {
+      console.assert(promise['[[PromiseState]]'] === 'pending');
+      var reactions = promise['[[PromiseFulfillReactions]]'];
+      set_internal(promise, '[[PromiseResult]]', value);
+      set_internal(promise, '[[PromiseFulfillReactions]]', undefined);
+      set_internal(promise, '[[PromiseRejectReactions]]', undefined);
+      set_internal(promise, '[[PromiseState]]', 'fulfilled');
+      return TriggerPromiseReactions(reactions, value);
+    }
+
+    // 25.4.1.5 NewPromiseCapability ( C )
+
+    function NewPromiseCapability(c) {
+      // To keep Promise hermetic, this doesn't look much like the spec.
+      return CreatePromiseCapabilityRecord(undefined, c);
+    }
+
+    // 25.4.1.5.1 CreatePromiseCapabilityRecord ( promise, constructor )
+
+    function CreatePromiseCapabilityRecord(promise, constructor) {
+      // To keep Promise hermetic, this doesn't look much like the spec.
+      console.assert(IsConstructor(constructor));
+      var promiseCapability = {};
+      set_internal(promiseCapability, '[[Promise]]', promise);
+      set_internal(promiseCapability, '[[Resolve]]', undefined);
+      set_internal(promiseCapability, '[[Reject]]', undefined);
+      var executor = GetCapabilitiesExecutor();
+      set_internal(executor, '[[Capability]]', promiseCapability);
+
+      // NOTE: Differs from spec; object is constructed here
+      var constructorResult = promise = new constructor(executor);
+      set_internal(promiseCapability, '[[Promise]]', promise);
+
+      if (!IsCallable(promiseCapability['[[Resolve]]'])) throw TypeError();
+      if (!IsCallable(promiseCapability['[[Reject]]'])) throw TypeError();
+      if (Type(constructorResult) === 'object' && !SameValue(promise, constructorResult)) throw TypeError();
+      return promiseCapability;
+    }
+
+    // 25.4.1.5.2 GetCapabilitiesExecutor Functions
+
+    function GetCapabilitiesExecutor() {
+      var F = function(resolve, reject) {
+        console.assert(F['[[Capability]]']);
+        var promiseCapability = F['[[Capability]]'];
+        if (promiseCapability['[[Resolve]]'] !== undefined) throw TypeError();
+        if (promiseCapability['[[Reject]]'] !== undefined) throw TypeError();
+        set_internal(promiseCapability, '[[Resolve]]', resolve);
+        set_internal(promiseCapability, '[[Reject]]', reject);
+        return undefined;
+      };
+      return F;
+    }
+
+    // 25.4.1.6 IsPromise ( x )
+
+    function IsPromise(x) {
+      if (Type(x) !== 'object') return false;
+      if (!('[[PromiseState]]' in x)) return false;
+      if (x['[[PromiseState]]'] === undefined) return false;
+      return true;
+    }
+
+    // 25.4.1.7 RejectPromise ( promise, reason )
+
+    function RejectPromise(promise, reason) {
+      console.assert(promise['[[PromiseState]]'] === 'pending');
+      var reactions = promise['[[PromiseRejectReactions]]'];
+      set_internal(promise, '[[PromiseResult]]', reason);
+      set_internal(promise, '[[PromiseFulfillReactions]]', undefined);
+      set_internal(promise, '[[PromiseRejectReactions]]', undefined);
+      set_internal(promise, '[[PromiseState]]', 'rejected');
+      return TriggerPromiseReactions(reactions, reason);
+    }
+
+    // 25.4.1.8 TriggerPromiseReactions ( reactions, argument )
+
+    function TriggerPromiseReactions(reactions, argument) {
+      for (var i = 0, len = reactions.length; i < len; ++i)
+        EnqueueJob('PromiseJobs', PromiseReactionJob, [reactions[i], argument]);
+      return undefined;
+    }
+
+    // 25.4.2 Promise Jobs
+
+    // 25.4.2.1 PromiseReactionJob ( reaction, argument )
+
+    function PromiseReactionJob(reaction, argument) {
+      var promiseCapability = reaction['[[Capabilities]]'];
+      var handler = reaction['[[Handler]]'];
+      var handlerResult, status;
+      try {
+        if (handler === 'Identity') handlerResult = argument;
+        else if (handler === 'Thrower') throw argument;
+        else handlerResult = handler.call(undefined, argument);
+      } catch (handlerResult) {
+        status = promiseCapability['[[Reject]]'].call(undefined, handlerResult);
+        NextJob(status); return;
+      }
+      status = promiseCapability['[[Resolve]]'].call(undefined, handlerResult);
+      NextJob(status);
+    }
+
+    // 25.4.2.2 PromiseResolveThenableJob ( promiseToResolve, thenable, then)
+
+    function PromiseResolveThenableJob(promiseToResolve, thenable, then) {
+      // SPEC BUG: promise vs. promiseToResolve
+      var resolvingFunctions = CreateResolvingFunctions(promiseToResolve);
+      try {
+        var thenCallResult = then.call(thenable, resolvingFunctions['[[Resolve]]'],
+                                       resolvingFunctions['[[Reject]]']);
+      } catch (thenCallResult) {
+        var status = resolvingFunctions['[[Reject]]'].call(undefined, thenCallResult);
+        NextJob(status); return;
+      }
+      NextJob(thenCallResult);
+    }
+
+    // 25.4.3 The Promise Constructor
+
+    // 25.4.3.1 Promise ( executor )
+
+    function Promise(executor) {
+      var config = { configurable: false, enumerable: false, writable: true, value: undefined };
+      Object.defineProperty(this, '[[PromiseState]]', config);
+      Object.defineProperty(this, '[[PromiseConstructor]]', config);
+      Object.defineProperty(this, '[[PromiseResult]]', config);
+      Object.defineProperty(this, '[[PromiseFulfillReactions]]', config);
+      Object.defineProperty(this, '[[PromiseRejectReactions]]', config);
+
+      var promise = this;
+      if (Type(promise) !== 'object') throw new TypeError();
+      if (!('[[PromiseState]]' in promise)) throw TypeError();
+      if (promise['[[PromiseState]]'] !== undefined) throw TypeError();
+      if (!IsCallable(executor)) throw TypeError();
+
+      set_internal(promise, '[[PromiseConstructor]]', Promise);
+
+      return InitializePromise(promise, executor);
+    }
+
+    // 25.4.3.1.1 InitializePromise ( promise, executor )
+
+    function InitializePromise(promise, executor) {
+      console.assert('[[PromiseState]]' in promise);
+      console.assert(IsCallable(executor));
+      set_internal(promise, '[[PromiseState]]', 'pending');
+      set_internal(promise, '[[PromiseFulfillReactions]]', []);
+      set_internal(promise, '[[PromiseRejectReactions]]', []);
+      var resolvingFunctions = CreateResolvingFunctions(promise);
+      try {
+        var completion = executor.call(undefined, resolvingFunctions['[[Resolve]]'],
+                                       resolvingFunctions['[[Reject]]']);
+      } catch (completion) {
+        var status = resolvingFunctions['[[Reject]]'].call(undefined, completion);
+      }
+      return promise;
+    }
+
+    // 25.4.4 Properties of the Promise Constructor
+    // 25.4.4.1 Promise.all ( iterable )
+
+    define(Promise, 'all', function all(iterable) {
+      var c = strict(this);
+      var promiseCapability = NewPromiseCapability(c);
+      try {
+        var iterator = GetIterator(iterable);
+      } catch (value) {
+        promiseCapability['[[Reject]]'].call(undefined, value);
+        return promiseCapability['[[Promise]]'];
+      }
+      var values = [];
+      var remainingElementsCount = { value: 1 };
+      var index = 0;
+      while (true) {
+        try {
+          var next = IteratorStep(iterator);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        if (!next) {
+          remainingElementsCount.value -= 1;
+          if (remainingElementsCount.value === 0) {
+            var resolveResult = promiseCapability['[[Resolve]]'].apply(undefined, values);
+
+
+          }
+          return promiseCapability['[[Promise]]'];
+        }
+        try {
+          var nextValue = IteratorValue(next);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        try {
+          var nextPromise = c.resolve(nextValue);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        var resolveElement = PromiseAllResolveElementFunction();
+        set_internal(resolveElement, '[[AlreadyCalled]]', { value: false });
+        set_internal(resolveElement, '[[Index]]', index);
+        set_internal(resolveElement, '[[Values]]', values);
+        set_internal(resolveElement, '[[Capabilities]]', promiseCapability);
+        set_internal(resolveElement, '[[RemainingElements]]', remainingElementsCount);
+        remainingElementsCount.value += 1;
+        try {
+          var result = nextPromise.then(resolveElement, promiseCapability['[[Reject]]']);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        index += 1;
+      }
+    });
+
+    // 25.4.4.1.1 Promise.all Resolve Element Functions
+
+    function PromiseAllResolveElementFunction() {
+      var F = function(x) {
+        var alreadyCalled = F['[[AlreadyCalled]]'];
+        if (alreadyCalled.value) return undefined;
+        alreadyCalled.value = true;
+        var index = F['[[Index]]'];
+        var values = F['[[Values]]'];
+        var promiseCapability = F['[[Capabilities]]'];
+        var remainingElementsCount = F['[[RemainingElements]]'];
+        try {
+          values[index] = x;
+        } catch (result) {
+          promiseCapability['[[Reject]]'].call(undefined, result);
+          return promiseCapability['[[Promise]]'];
+        }
+        remainingElementsCount.value -= 1;
+        if (remainingElementsCount.value === 0)
+          return promiseCapability['[[Resolve]]'].call(undefined, values);
+        return undefined;
+      };
+      return F;
+    }
+
+    // 25.4.4.2 Promise.prototype
+
+    Promise.prototype = {};
+
+    // 25.4.4.3 Promise.race ( iterable )
+
+    define(Promise, 'race', function race(iterable) {
+      var c = strict(this);
+      var promiseCapability = NewPromiseCapability(c);
+      try {
+        var iterator = GetIterator(iterable);
+      } catch (value) {
+        promiseCapability['[[Reject]]'].call(undefined, value);
+        return promiseCapability['[[Promise]]'];
+      }
+      while (true) {
+        try {
+          var next = IteratorStep(iterator);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        if (!next) return promiseCapability['[[Promise]]'];
+        try {
+          var nextValue = IteratorValue(next);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        try {
+          var nextPromise = c.resolve(nextValue);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+        try {
+          nextPromise.then(promiseCapability['[[Resolve]]'], promiseCapability['[[Reject]]']);
+        } catch (value) {
+          promiseCapability['[[Reject]]'].call(undefined, value);
+          return promiseCapability['[[Promise]]'];
+        }
+      }
+    });
+
+    // 25.4.4.4 Promise.reject ( r )
+
+    define(Promise, 'reject', function reject(r) {
+      var c = strict(this);
+      var promiseCapability = NewPromiseCapability(c);
+      var rejectResult = promiseCapability['[[Reject]]'].call(undefined, r);
+      return promiseCapability['[[Promise]]'];
+    });
+
+    // 25.4.4.5 Promise.resolve ( x )
+
+    define(Promise, 'resolve', function resolve(x) {
+      var c = strict(this);
+      if (IsPromise(x)) {
+        var constructor = x['[[PromiseConstructor]]'];
+        if (SameValue(constructor, c)) return x;
+      }
+      var promiseCapability = NewPromiseCapability(c);
+      var resolveResult = promiseCapability['[[Resolve]]'].call(undefined, x);
+      return promiseCapability['[[Promise]]'];
+    });
+
+    // 25.4.4.6 Promise [ @@create ] ( )
+    // 25.4.4.6.1 AllocatePromise ( constructor )
+    // 25.4.5 Properties of the Promise Prototype Object
+    // 25.4.5.1 Promise.prototype.catch ( onRejected )
+
+    define(Promise.prototype, 'catch', function catch_(onRejected) {
+      var promise = this;
+      return promise.then(undefined, onRejected);
+    });
+
+    // 25.4.5.2 Promise.prototype.constructor
+
+    Promise.prototype.constructor = Promise;
+
+    // 25.4.5.3 Promise.prototype.then ( onFulfilled , onRejected )
+
+    define(Promise.prototype, 'then', function then(onFulfilled, onRejected) {
+      var promise = this;
+      if (!IsPromise(promise)) throw TypeError();
+      if (!IsCallable(onFulfilled)) onFulfilled = 'Identity';
+      if (!IsCallable(onRejected)) onRejected = 'Thrower';
+      var c = promise.constructor;
+      var promiseCapability = NewPromiseCapability(c);
+      var fulfillReaction = { '[[Capabilities]]': promiseCapability,
+                              '[[Handler]]': onFulfilled };
+      var rejectReaction = { '[[Capabilities]]': promiseCapability,
+                             '[[Handler]]': onRejected };
+      if (promise['[[PromiseState]]'] === 'pending') {
+        promise['[[PromiseFulfillReactions]]'].push(fulfillReaction);
+        promise['[[PromiseRejectReactions]]'].push(rejectReaction);
+      } else if (promise['[[PromiseState]]'] === 'fulfilled') {
+        var value = promise['[[PromiseResult]]'];
+        EnqueueJob('PromiseJobs', PromiseReactionJob, [fulfillReaction, value]);
+      } else if (promise['[[PromiseState]]'] === 'rejected') {
+        var reason = promise['[[PromiseResult]]'];
+        EnqueueJob('PromiseJobs', PromiseReactionJob, [rejectReaction, reason]);
+      }
+      return promiseCapability['[[Promise]]'];
+    });
+
+    // 25.4.6 Properties of Promise Instances
+
+    if (!('Promise' in global) || OVERRIDE_NATIVE_FOR_TESTING)
+      global.Promise = Promise;
+
+    // Patch early Promise.cast vs. Promise.resolve implementations
+    if ('cast' in global.Promise) global.Promise.resolve = global.Promise.cast;
+  }());
+
+  // 25.4.5.1 Promise.prototype [ @@toStringTag ]
+  define(Promise.prototype, $$toStringTag, 'Promise');
+
+  // ---------------------------------------
+  // 26 Reflection
+  // ---------------------------------------
+
+  (function() {
+    // 26.1 The Reflect Object
+    if (!('Reflect' in global) || OVERRIDE_NATIVE_FOR_TESTING)
+      global.Reflect = {};
+
+    // 26.1.1 Reflect.apply ( target, thisArgument, argumentsList )
+    define(
+      Reflect, 'apply',
+      function apply(target, thisArgument, argumentsList) {
+        if (!IsCallable(target)) throw TypeError();
+        return Function.prototype.apply.call(target, thisArgument, argumentsList);
+      });
+
+    // 26.1.2 Reflect.construct ( target, argumentsList [, newTarget] )
+    define(
+      Reflect, 'construct',
+      function construct(target, argumentsList) {
+        return __cons(target, argumentsList);
+      });
+
+    // 26.1.3 Reflect.defineProperty ( target, propertyKey, attributes )
+    define(
+      Reflect, 'defineProperty',
+      function defineProperty(target, propertyKey, attributes) {
+        try {
+          Object.defineProperty(target, propertyKey, attributes);
+          return true;
+        } catch (_) {
+          return false;
+        }
+      });
+
+    // 26.1.4 Reflect.deleteProperty ( target, propertyKey )
+    define(
+      Reflect, 'deleteProperty',
+      function deleteProperty(target,name) {
+        try {
+          delete target[name];
+          return !HasOwnProperty(target, name);
+        } catch (_) {
+          return false;
+        }
+      });
+
+    // 26.1.5 Reflect.enumerate ( target )
+    define(
+      Reflect, 'enumerate',
+      function enumerate(target) {
+        target = ToObject(target);
+        var iterator = Enumerate(target);
+        return iterator;
+      });
+
+    // 26.1.6 Reflect.get ( target, propertyKey [ , receiver ])
+    define(
+      Reflect, 'get',
+      function get(target, name, receiver) {
+        target = ToObject(target);
+        name = String(name);
+        receiver = (receiver === undefined) ? target : ToObject(receiver);
+        var desc = getPropertyDescriptor(target, name);
+        if (desc && 'get' in desc)
+          return Function.prototype.call.call(desc['get'], receiver);
+        return target[name];
+      });
+
+    // 26.1.7 Reflect.getOwnPropertyDescriptor ( target, propertyKey )
+    define(
+      Reflect, 'getOwnPropertyDescriptor',
+      Object.getOwnPropertyDescriptor);
+
+    // 26.1.8 Reflect.getPrototypeOf ( target )
+    define(
+      Reflect, 'getPrototypeOf',
+      Object.getPrototypeOf);
+
+    // 26.1.9 Reflect.has ( target, propertyKey )
+    define(
+      Reflect, 'has',
+      function has(target,name) {
+        return String(name) in ToObject(target);
+      });
+
+    // 26.1.10 Reflect.isExtensible (target)
+    define(
+      Reflect, 'isExtensible',
+      Object.isExtensible);
+
+    // 26.1.11 Reflect.ownKeys ( target )
+    define(
+      Reflect, 'ownKeys',
+      function ownKeys(target) {
+        var obj = ToObject(target);
+        return Object.getOwnPropertyNames(obj);
+      });
+
+    // 26.1.12 Reflect.preventExtensions ( target )
+    define(
+      Reflect, 'preventExtensions',
+      function preventExtensions(target) {
+        try { Object.preventExtensions(target); return true; } catch (_) { return false; }
+      });
+
+    // 26.1.13 Reflect.set ( target, propertyKey, V [ , receiver ] )
+    define(
+      Reflect, 'set',
+      function set(target, name, value, receiver) {
+        target = ToObject(target);
+        name = String(name);
+        receiver = (receiver === undefined) ? target : ToObject(receiver);
+        var desc = getPropertyDescriptor(target, name);
+        try {
+          if (desc && 'set' in desc)
+            Function.prototype.call.call(desc['set'], receiver, value);
+          else
+            target[name] = value;
+          return true;
+        } catch (_) {
+          return false;
+        }
+      });
+
+    // 26.1.14 Reflect.setPrototypeOf ( target, proto )
+    define(
+      Reflect, 'setPrototypeOf',
+      function setPrototypeOf(target, proto) {
+        try {
+          target.__proto__ = proto;
+          return Reflect.getPrototypeOf(target) === proto;
+        } catch(_) {
+          return false;
+        }
+      });
+
+  }());
+
+  // ---------------------------------------
+  // 26.2 Proxy Objects
+  // ---------------------------------------
+
+  // Not polyfillable.
+
+}(self));
+
+// This helper is defined outside the main scope so that the use of
+// 'eval' does not taint the scope for minifiers.
+function __cons(t, a) {
+  return eval('new t(' + a.map(function(_, i) { return 'a[' + i + ']'; }).join(',') + ')');
+}
+</script>
+        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.foo = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
+}
+
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+  var len = b64.length
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
+  }
+
+  // the number of equal signs (place holders)
+  // if there are two placeholders, than the two characters before it
+  // represent one byte
+  // if there is only one, then the three characters before it represent 2 bytes
+  // this is just a cheap hack to not do indexOf twice
+  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
+
+function byteLength (b64) {
+  // base64 is 4/3 + up to two characters of the original data
+  return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
+
+function toByteArray (b64) {
+  var i, j, l, tmp, placeHolders, arr
+  var len = b64.length
+  placeHolders = placeHoldersCount(b64)
+
+  arr = new Arr(len * 3 / 4 - placeHolders)
+
+  // if there are placeholders, only get up to the last complete 4 chars
+  l = placeHolders > 0 ? len - 4 : len
+
+  var L = 0
+
+  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+    arr[L++] = (tmp >> 16) & 0xFF
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  if (placeHolders === 2) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[L++] = tmp & 0xFF
+  } else if (placeHolders === 1) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  return arr
+}
+
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
+
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var output = ''
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    output += lookup[tmp >> 2]
+    output += lookup[(tmp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+    output += lookup[tmp >> 10]
+    output += lookup[(tmp >> 4) & 0x3F]
+    output += lookup[(tmp << 2) & 0x3F]
+    output += '='
+  }
+
+  parts.push(output)
+
+  return parts.join('')
+}
+
+},{}],2:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ *   === true    Use Uint8Array implementation (fastest)
+ *   === false   Print warning and recommend using `buffer` v4.x which has an Object
+ *               implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+    typeof console.error === 'function') {
+  console.error(
+    'This browser lacks typed array (Uint8Array) support which is required by ' +
+    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+  )
+}
+
+function typedArraySupport () {
+  // Can typed array instances can be augmented?
+  try {
+    var arr = new Uint8Array(1)
+    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+    return arr.foo() === 42
+  } catch (e) {
+    return false
+  }
+}
+
+function createBuffer (length) {
+  if (length > K_MAX_LENGTH) {
+    throw new RangeError('Invalid typed array length')
+  }
+  // Return an augmented `Uint8Array` instance
+  var buf = new Uint8Array(length)
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+  // Common case.
+  if (typeof arg === 'number') {
+    if (typeof encodingOrOffset === 'string') {
+      throw new Error(
+        'If encoding is specified then the first argument must be a string'
+      )
+    }
+    return allocUnsafe(arg)
+  }
+  return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+    Buffer[Symbol.species] === Buffer) {
+  Object.defineProperty(Buffer, Symbol.species, {
+    value: null,
+    configurable: true,
+    enumerable: false,
+    writable: false
+  })
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+function from (value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
+  }
+
+  if (value instanceof ArrayBuffer) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  return fromObject(value)
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+  return from(value, encodingOrOffset, length)
+}
+
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('"size" argument must be a number')
+  } else if (size < 0) {
+    throw new RangeError('"size" argument must not be negative')
+  }
+}
+
+function alloc (size, fill, encoding) {
+  assertSize(size)
+  if (size <= 0) {
+    return createBuffer(size)
+  }
+  if (fill !== undefined) {
+    // Only pay attention to encoding if it's a string. This
+    // prevents accidentally sending in a number that would
+    // be interpretted as a start offset.
+    return typeof encoding === 'string'
+      ? createBuffer(size).fill(fill, encoding)
+      : createBuffer(size).fill(fill)
+  }
+  return createBuffer(size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+  return alloc(size, fill, encoding)
+}
+
+function allocUnsafe (size) {
+  assertSize(size)
+  return createBuffer(size < 0 ? 0 : checked(size) | 0)
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+  return allocUnsafe(size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+  return allocUnsafe(size)
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  var length = byteLength(string, encoding) | 0
+  var buf = createBuffer(length)
+
+  var actual = buf.write(string, encoding)
+
+  if (actual !== length) {
+    // Writing a hex string, for example, that contains invalid characters will
+    // cause everything after the first invalid character to be ignored. (e.g.
+    // 'abxxcd' will be treated as 'ab')
+    buf = buf.slice(0, actual)
+  }
+
+  return buf
+}
+
+function fromArrayLike (array) {
+  var length = array.length < 0 ? 0 : checked(array.length) | 0
+  var buf = createBuffer(length)
+  for (var i = 0; i < length; i += 1) {
+    buf[i] = array[i] & 255
+  }
+  return buf
+}
+
+function fromArrayBuffer (array, byteOffset, length) {
+  if (byteOffset < 0 || array.byteLength < byteOffset) {
+    throw new RangeError('\'offset\' is out of bounds')
+  }
+
+  if (array.byteLength < byteOffset + (length || 0)) {
+    throw new RangeError('\'length\' is out of bounds')
+  }
+
+  var buf
+  if (byteOffset === undefined && length === undefined) {
+    buf = new Uint8Array(array)
+  } else if (length === undefined) {
+    buf = new Uint8Array(array, byteOffset)
+  } else {
+    buf = new Uint8Array(array, byteOffset, length)
+  }
+
+  // Return an augmented `Uint8Array` instance
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+function fromObject (obj) {
+  if (Buffer.isBuffer(obj)) {
+    var len = checked(obj.length) | 0
+    var buf = createBuffer(len)
+
+    if (buf.length === 0) {
+      return buf
+    }
+
+    obj.copy(buf, 0, 0, len)
+    return buf
+  }
+
+  if (obj) {
+    if (isArrayBufferView(obj) || 'length' in obj) {
+      if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+        return createBuffer(0)
+      }
+      return fromArrayLike(obj)
+    }
+
+    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+      return fromArrayLike(obj.data)
+    }
+  }
+
+  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+function checked (length) {
+  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
+  // length is NaN (which is otherwise coerced to zero.)
+  if (length >= K_MAX_LENGTH) {
+    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+  }
+  return length | 0
+}
+
+function SlowBuffer (length) {
+  if (+length != length) { // eslint-disable-line eqeqeq
+    length = 0
+  }
+  return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+  return b != null && b._isBuffer === true
+}
+
+Buffer.compare = function compare (a, b) {
+  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+    throw new TypeError('Arguments must be Buffers')
+  }
+
+  if (a === b) return 0
+
+  var x = a.length
+  var y = b.length
+
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i]
+      y = b[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+  switch (String(encoding).toLowerCase()) {
+    case 'hex':
+    case 'utf8':
+    case 'utf-8':
+    case 'ascii':
+    case 'latin1':
+    case 'binary':
+    case 'base64':
+    case 'ucs2':
+    case 'ucs-2':
+    case 'utf16le':
+    case 'utf-16le':
+      return true
+    default:
+      return false
+  }
+}
+
+Buffer.concat = function concat (list, length) {
+  if (!Array.isArray(list)) {
+    throw new TypeError('"list" argument must be an Array of Buffers')
+  }
+
+  if (list.length === 0) {
+    return Buffer.alloc(0)
+  }
+
+  var i
+  if (length === undefined) {
+    length = 0
+    for (i = 0; i < list.length; ++i) {
+      length += list[i].length
+    }
+  }
+
+  var buffer = Buffer.allocUnsafe(length)
+  var pos = 0
+  for (i = 0; i < list.length; ++i) {
+    var buf = list[i]
+    if (!Buffer.isBuffer(buf)) {
+      throw new TypeError('"list" argument must be an Array of Buffers')
+    }
+    buf.copy(buffer, pos)
+    pos += buf.length
+  }
+  return buffer
+}
+
+function byteLength (string, encoding) {
+  if (Buffer.isBuffer(string)) {
+    return string.length
+  }
+  if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+    return string.byteLength
+  }
+  if (typeof string !== 'string') {
+    string = '' + string
+  }
+
+  var len = string.length
+  if (len === 0) return 0
+
+  // Use a for loop to avoid recursion
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'ascii':
+      case 'latin1':
+      case 'binary':
+        return len
+      case 'utf8':
+      case 'utf-8':
+      case undefined:
+        return utf8ToBytes(string).length
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return len * 2
+      case 'hex':
+        return len >>> 1
+      case 'base64':
+        return base64ToBytes(string).length
+      default:
+        if (loweredCase) return utf8ToBytes(string).length // assume utf8
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+  var loweredCase = false
+
+  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+  // property of a typed array.
+
+  // This behaves neither like String nor Uint8Array in that we set start/end
+  // to their upper/lower bounds if the value passed is out of range.
+  // undefined is handled specially as per ECMA-262 6th Edition,
+  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+  if (start === undefined || start < 0) {
+    start = 0
+  }
+  // Return early if start > this.length. Done here to prevent potential uint32
+  // coercion fail below.
+  if (start > this.length) {
+    return ''
+  }
+
+  if (end === undefined || end > this.length) {
+    end = this.length
+  }
+
+  if (end <= 0) {
+    return ''
+  }
+
+  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+  end >>>= 0
+  start >>>= 0
+
+  if (end <= start) {
+    return ''
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  while (true) {
+    switch (encoding) {
+      case 'hex':
+        return hexSlice(this, start, end)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Slice(this, start, end)
+
+      case 'ascii':
+        return asciiSlice(this, start, end)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Slice(this, start, end)
+
+      case 'base64':
+        return base64Slice(this, start, end)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return utf16leSlice(this, start, end)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = (encoding + '').toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+  var i = b[n]
+  b[n] = b[m]
+  b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+  var len = this.length
+  if (len % 2 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 16-bits')
+  }
+  for (var i = 0; i < len; i += 2) {
+    swap(this, i, i + 1)
+  }
+  return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+  var len = this.length
+  if (len % 4 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 32-bits')
+  }
+  for (var i = 0; i < len; i += 4) {
+    swap(this, i, i + 3)
+    swap(this, i + 1, i + 2)
+  }
+  return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+  var len = this.length
+  if (len % 8 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 64-bits')
+  }
+  for (var i = 0; i < len; i += 8) {
+    swap(this, i, i + 7)
+    swap(this, i + 1, i + 6)
+    swap(this, i + 2, i + 5)
+    swap(this, i + 3, i + 4)
+  }
+  return this
+}
+
+Buffer.prototype.toString = function toString () {
+  var length = this.length
+  if (length === 0) return ''
+  if (arguments.length === 0) return utf8Slice(this, 0, length)
+  return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.equals = function equals (b) {
+  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+  if (this === b) return true
+  return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+  var str = ''
+  var max = exports.INSPECT_MAX_BYTES
+  if (this.length > 0) {
+    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+    if (this.length > max) str += ' ... '
+  }
+  return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (!Buffer.isBuffer(target)) {
+    throw new TypeError('Argument must be a Buffer')
+  }
+
+  if (start === undefined) {
+    start = 0
+  }
+  if (end === undefined) {
+    end = target ? target.length : 0
+  }
+  if (thisStart === undefined) {
+    thisStart = 0
+  }
+  if (thisEnd === undefined) {
+    thisEnd = this.length
+  }
+
+  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+    throw new RangeError('out of range index')
+  }
+
+  if (thisStart >= thisEnd && start >= end) {
+    return 0
+  }
+  if (thisStart >= thisEnd) {
+    return -1
+  }
+  if (start >= end) {
+    return 1
+  }
+
+  start >>>= 0
+  end >>>= 0
+  thisStart >>>= 0
+  thisEnd >>>= 0
+
+  if (this === target) return 0
+
+  var x = thisEnd - thisStart
+  var y = end - start
+  var len = Math.min(x, y)
+
+  var thisCopy = this.slice(thisStart, thisEnd)
+  var targetCopy = target.slice(start, end)
+
+  for (var i = 0; i < len; ++i) {
+    if (thisCopy[i] !== targetCopy[i]) {
+      x = thisCopy[i]
+      y = targetCopy[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+  // Empty buffer means no match
+  if (buffer.length === 0) return -1
+
+  // Normalize byteOffset
+  if (typeof byteOffset === 'string') {
+    encoding = byteOffset
+    byteOffset = 0
+  } else if (byteOffset > 0x7fffffff) {
+    byteOffset = 0x7fffffff
+  } else if (byteOffset < -0x80000000) {
+    byteOffset = -0x80000000
+  }
+  byteOffset = +byteOffset  // Coerce to Number.
+  if (numberIsNaN(byteOffset)) {
+    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+    byteOffset = dir ? 0 : (buffer.length - 1)
+  }
+
+  // Normalize byteOffset: negative offsets start from the end of the buffer
+  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+  if (byteOffset >= buffer.length) {
+    if (dir) return -1
+    else byteOffset = buffer.length - 1
+  } else if (byteOffset < 0) {
+    if (dir) byteOffset = 0
+    else return -1
+  }
+
+  // Normalize val
+  if (typeof val === 'string') {
+    val = Buffer.from(val, encoding)
+  }
+
+  // Finally, search either indexOf (if dir is true) or lastIndexOf
+  if (Buffer.isBuffer(val)) {
+    // Special case: looking for empty string/buffer always fails
+    if (val.length === 0) {
+      return -1
+    }
+    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+  } else if (typeof val === 'number') {
+    val = val & 0xFF // Search for a byte value [0-255]
+    if (typeof Uint8Array.prototype.indexOf === 'function') {
+      if (dir) {
+        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+      } else {
+        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+      }
+    }
+    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
+  }
+
+  throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+  var indexSize = 1
+  var arrLength = arr.length
+  var valLength = val.length
+
+  if (encoding !== undefined) {
+    encoding = String(encoding).toLowerCase()
+    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+        encoding === 'utf16le' || encoding === 'utf-16le') {
+      if (arr.length < 2 || val.length < 2) {
+        return -1
+      }
+      indexSize = 2
+      arrLength /= 2
+      valLength /= 2
+      byteOffset /= 2
+    }
+  }
+
+  function read (buf, i) {
+    if (indexSize === 1) {
+      return buf[i]
+    } else {
+      return buf.readUInt16BE(i * indexSize)
+    }
+  }
+
+  var i
+  if (dir) {
+    var foundIndex = -1
+    for (i = byteOffset; i < arrLength; i++) {
+      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+        if (foundIndex === -1) foundIndex = i
+        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+      } else {
+        if (foundIndex !== -1) i -= i - foundIndex
+        foundIndex = -1
+      }
+    }
+  } else {
+    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+    for (i = byteOffset; i >= 0; i--) {
+      var found = true
+      for (var j = 0; j < valLength; j++) {
+        if (read(arr, i + j) !== read(val, j)) {
+          found = false
+          break
+        }
+      }
+      if (found) return i
+    }
+  }
+
+  return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+  return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
+
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
+
+function hexWrite (buf, string, offset, length) {
+  offset = Number(offset) || 0
+  var remaining = buf.length - offset
+  if (!length) {
+    length = remaining
+  } else {
+    length = Number(length)
+    if (length > remaining) {
+      length = remaining
+    }
+  }
+
+  // must be an even number of digits
+  var strLen = string.length
+  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+
+  if (length > strLen / 2) {
+    length = strLen / 2
+  }
+  for (var i = 0; i < length; ++i) {
+    var parsed = parseInt(string.substr(i * 2, 2), 16)
+    if (numberIsNaN(parsed)) return i
+    buf[offset + i] = parsed
+  }
+  return i
+}
+
+function utf8Write (buf, string, offset, length) {
+  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+  return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function latin1Write (buf, string, offset, length) {
+  return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+  return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+  // Buffer#write(string)
+  if (offset === undefined) {
+    encoding = 'utf8'
+    length = this.length
+    offset = 0
+  // Buffer#write(string, encoding)
+  } else if (length === undefined && typeof offset === 'string') {
+    encoding = offset
+    length = this.length
+    offset = 0
+  // Buffer#write(string, offset[, length][, encoding])
+  } else if (isFinite(offset)) {
+    offset = offset >>> 0
+    if (isFinite(length)) {
+      length = length >>> 0
+      if (encoding === undefined) encoding = 'utf8'
+    } else {
+      encoding = length
+      length = undefined
+    }
+  } else {
+    throw new Error(
+      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+    )
+  }
+
+  var remaining = this.length - offset
+  if (length === undefined || length > remaining) length = remaining
+
+  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+    throw new RangeError('Attempt to write outside buffer bounds')
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'hex':
+        return hexWrite(this, string, offset, length)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Write(this, string, offset, length)
+
+      case 'ascii':
+        return asciiWrite(this, string, offset, length)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Write(this, string, offset, length)
+
+      case 'base64':
+        // Warning: maxLength not taken into account in base64Write
+        return base64Write(this, string, offset, length)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return ucs2Write(this, string, offset, length)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+  return {
+    type: 'Buffer',
+    data: Array.prototype.slice.call(this._arr || this, 0)
+  }
+}
+
+function base64Slice (buf, start, end) {
+  if (start === 0 && end === buf.length) {
+    return base64.fromByteArray(buf)
+  } else {
+    return base64.fromByteArray(buf.slice(start, end))
+  }
+}
+
+function utf8Slice (buf, start, end) {
+  end = Math.min(buf.length, end)
+  var res = []
+
+  var i = start
+  while (i < end) {
+    var firstByte = buf[i]
+    var codePoint = null
+    var bytesPerSequence = (firstByte > 0xEF) ? 4
+      : (firstByte > 0xDF) ? 3
+      : (firstByte > 0xBF) ? 2
+      : 1
+
+    if (i + bytesPerSequence <= end) {
+      var secondByte, thirdByte, fourthByte, tempCodePoint
+
+      switch (bytesPerSequence) {
+        case 1:
+          if (firstByte < 0x80) {
+            codePoint = firstByte
+          }
+          break
+        case 2:
+          secondByte = buf[i + 1]
+          if ((secondByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+            if (tempCodePoint > 0x7F) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 3:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 4:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          fourthByte = buf[i + 3]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+              codePoint = tempCodePoint
+            }
+          }
+      }
+    }
+
+    if (codePoint === null) {
+      // we did not generate a valid codePoint so insert a
+      // replacement char (U+FFFD) and advance only 1 byte
+      codePoint = 0xFFFD
+      bytesPerSequence = 1
+    } else if (codePoint > 0xFFFF) {
+      // encode to utf16 (surrogate pair dance)
+      codePoint -= 0x10000
+      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+      codePoint = 0xDC00 | codePoint & 0x3FF
+    }
+
+    res.push(codePoint)
+    i += bytesPerSequence
+  }
+
+  return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+  var len = codePoints.length
+  if (len <= MAX_ARGUMENTS_LENGTH) {
+    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+  }
+
+  // Decode in chunks to avoid "call stack size exceeded".
+  var res = ''
+  var i = 0
+  while (i < len) {
+    res += String.fromCharCode.apply(
+      String,
+      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+    )
+  }
+  return res
+}
+
+function asciiSlice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i] & 0x7F)
+  }
+  return ret
+}
+
+function latin1Slice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i])
+  }
+  return ret
+}
+
+function hexSlice (buf, start, end) {
+  var len = buf.length
+
+  if (!start || start < 0) start = 0
+  if (!end || end < 0 || end > len) end = len
+
+  var out = ''
+  for (var i = start; i < end; ++i) {
+    out += toHex(buf[i])
+  }
+  return out
+}
+
+function utf16leSlice (buf, start, end) {
+  var bytes = buf.slice(start, end)
+  var res = ''
+  for (var i = 0; i < bytes.length; i += 2) {
+    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+  }
+  return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+  var len = this.length
+  start = ~~start
+  end = end === undefined ? len : ~~end
+
+  if (start < 0) {
+    start += len
+    if (start < 0) start = 0
+  } else if (start > len) {
+    start = len
+  }
+
+  if (end < 0) {
+    end += len
+    if (end < 0) end = 0
+  } else if (end > len) {
+    end = len
+  }
+
+  if (end < start) end = start
+
+  var newBuf = this.subarray(start, end)
+  // Return an augmented `Uint8Array` instance
+  newBuf.__proto__ = Buffer.prototype
+  return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    checkOffset(offset, byteLength, this.length)
+  }
+
+  var val = this[offset + --byteLength]
+  var mul = 1
+  while (byteLength > 0 && (mul *= 0x100)) {
+    val += this[offset + --byteLength] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return ((this[offset]) |
+      (this[offset + 1] << 8) |
+      (this[offset + 2] << 16)) +
+      (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] * 0x1000000) +
+    ((this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var i = byteLength
+  var mul = 1
+  var val = this[offset + --i]
+  while (i > 0 && (mul *= 0x100)) {
+    val += this[offset + --i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  if (!(this[offset] & 0x80)) return (this[offset])
+  return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset] | (this[offset + 1] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset + 1] | (this[offset] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset]) |
+    (this[offset + 1] << 8) |
+    (this[offset + 2] << 16) |
+    (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] << 24) |
+    (this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var mul = 1
+  var i = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset + 3] = (value >>> 24)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 1] = (value >>> 8)
+  this[offset] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = 0
+  var mul = 1
+  var sub = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  var sub = 0
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+  if (value < 0) value = 0xff + value + 1
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 3] = (value >>> 24)
+  return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  if (value < 0) value = 0xffffffff + value + 1
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+  if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 23, 4)
+  return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 52, 8)
+  return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+  if (!start) start = 0
+  if (!end && end !== 0) end = this.length
+  if (targetStart >= target.length) targetStart = target.length
+  if (!targetStart) targetStart = 0
+  if (end > 0 && end < start) end = start
+
+  // Copy 0 bytes; we're done
+  if (end === start) return 0
+  if (target.length === 0 || this.length === 0) return 0
+
+  // Fatal error conditions
+  if (targetStart < 0) {
+    throw new RangeError('targetStart out of bounds')
+  }
+  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+  // Are we oob?
+  if (end > this.length) end = this.length
+  if (target.length - targetStart < end - start) {
+    end = target.length - targetStart + start
+  }
+
+  var len = end - start
+  var i
+
+  if (this === target && start < targetStart && targetStart < end) {
+    // descending copy from end
+    for (i = len - 1; i >= 0; --i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else if (len < 1000) {
+    // ascending copy from start
+    for (i = 0; i < len; ++i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else {
+    Uint8Array.prototype.set.call(
+      target,
+      this.subarray(start, start + len),
+      targetStart
+    )
+  }
+
+  return len
+}
+
+// Usage:
+//    buffer.fill(number[, offset[, end]])
+//    buffer.fill(buffer[, offset[, end]])
+//    buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+  // Handle string cases:
+  if (typeof val === 'string') {
+    if (typeof start === 'string') {
+      encoding = start
+      start = 0
+      end = this.length
+    } else if (typeof end === 'string') {
+      encoding = end
+      end = this.length
+    }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if (code < 256) {
+        val = code
+      }
+    }
+    if (encoding !== undefined && typeof encoding !== 'string') {
+      throw new TypeError('encoding must be a string')
+    }
+    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+      throw new TypeError('Unknown encoding: ' + encoding)
+    }
+  } else if (typeof val === 'number') {
+    val = val & 255
+  }
+
+  // Invalid ranges are not set to a default, so can range check early.
+  if (start < 0 || this.length < start || this.length < end) {
+    throw new RangeError('Out of range index')
+  }
+
+  if (end <= start) {
+    return this
+  }
+
+  start = start >>> 0
+  end = end === undefined ? this.length : end >>> 0
+
+  if (!val) val = 0
+
+  var i
+  if (typeof val === 'number') {
+    for (i = start; i < end; ++i) {
+      this[i] = val
+    }
+  } else {
+    var bytes = Buffer.isBuffer(val)
+      ? val
+      : new Buffer(val, encoding)
+    var len = bytes.length
+    for (i = 0; i < end - start; ++i) {
+      this[i + start] = bytes[i % len]
+    }
+  }
+
+  return this
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+  str = str.trim().replace(INVALID_BASE64_RE, '')
+  // Node converts strings with length < 2 to ''
+  if (str.length < 2) return ''
+  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+  while (str.length % 4 !== 0) {
+    str = str + '='
+  }
+  return str
+}
+
+function toHex (n) {
+  if (n < 16) return '0' + n.toString(16)
+  return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+  units = units || Infinity
+  var codePoint
+  var length = string.length
+  var leadSurrogate = null
+  var bytes = []
+
+  for (var i = 0; i < length; ++i) {
+    codePoint = string.charCodeAt(i)
+
+    // is surrogate component
+    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+      // last char was a lead
+      if (!leadSurrogate) {
+        // no lead yet
+        if (codePoint > 0xDBFF) {
+          // unexpected trail
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        } else if (i + 1 === length) {
+          // unpaired lead
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        }
+
+        // valid lead
+        leadSurrogate = codePoint
+
+        continue
+      }
+
+      // 2 leads in a row
+      if (codePoint < 0xDC00) {
+        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+        leadSurrogate = codePoint
+        continue
+      }
+
+      // valid surrogate pair
+      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+    } else if (leadSurrogate) {
+      // valid bmp char, but last char was a lead
+      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+    }
+
+    leadSurrogate = null
+
+    // encode utf8
+    if (codePoint < 0x80) {
+      if ((units -= 1) < 0) break
+      bytes.push(codePoint)
+    } else if (codePoint < 0x800) {
+      if ((units -= 2) < 0) break
+      bytes.push(
+        codePoint >> 0x6 | 0xC0,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x10000) {
+      if ((units -= 3) < 0) break
+      bytes.push(
+        codePoint >> 0xC | 0xE0,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x110000) {
+      if ((units -= 4) < 0) break
+      bytes.push(
+        codePoint >> 0x12 | 0xF0,
+        codePoint >> 0xC & 0x3F | 0x80,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else {
+      throw new Error('Invalid code point')
+    }
+  }
+
+  return bytes
+}
+
+function asciiToBytes (str) {
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    // Node's code seems to be doing this and not & 0x7F..
+    byteArray.push(str.charCodeAt(i) & 0xFF)
+  }
+  return byteArray
+}
+
+function utf16leToBytes (str, units) {
+  var c, hi, lo
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    if ((units -= 2) < 0) break
+
+    c = str.charCodeAt(i)
+    hi = c >> 8
+    lo = c % 256
+    byteArray.push(lo)
+    byteArray.push(hi)
+  }
+
+  return byteArray
+}
+
+function base64ToBytes (str) {
+  return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+  for (var i = 0; i < length; ++i) {
+    if ((i + offset >= dst.length) || (i >= src.length)) break
+    dst[i + offset] = src[i]
+  }
+  return i
+}
+
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+  return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+  return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":1,"ieee754":3}],3:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
+
+  i += d
+
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
+  }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+  value = Math.abs(value)
+
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
+
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = (value * c - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
+  }
+
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+  buffer[offset + i - d] |= s * 128
+}
+
+},{}],4:[function(require,module,exports){
+window.basex = require('base-x')
+},{"base-x":5}],5:[function(require,module,exports){
+// base-x encoding
+// Forked from https://github.com/cryptocoinjs/bs58
+// Originally written by Mike Hearn for BitcoinJ
+// Copyright (c) 2011 Google Inc
+// Ported to JavaScript by Stefan Thomas
+// Merged Buffer refactorings from base58-native by Stephen Pair
+// Copyright (c) 2013 BitPay Inc
+
+var Buffer = require('safe-buffer').Buffer
+
+module.exports = function base (ALPHABET) {
+  var ALPHABET_MAP = {}
+  var BASE = ALPHABET.length
+  var LEADER = ALPHABET.charAt(0)
+
+  // pre-compute lookup table
+  for (var z = 0; z < ALPHABET.length; z++) {
+    var x = ALPHABET.charAt(z)
+
+    if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+    ALPHABET_MAP[x] = z
+  }
+
+  function encode (source) {
+    if (source.length === 0) return ''
+
+    var digits = [0]
+    for (var i = 0; i < source.length; ++i) {
+      for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+        carry += digits[j] << 8
+        digits[j] = carry % BASE
+        carry = (carry / BASE) | 0
+      }
+
+      while (carry > 0) {
+        digits.push(carry % BASE)
+        carry = (carry / BASE) | 0
+      }
+    }
+
+    var string = ''
+
+    // deal with leading zeros
+    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
+    // convert digits to a string
+    for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
+
+    return string
+  }
+
+  function decodeUnsafe (string) {
+    if (string.length === 0) return Buffer.allocUnsafe(0)
+
+    var bytes = [0]
+    for (var i = 0; i < string.length; i++) {
+      var value = ALPHABET_MAP[string[i]]
+      if (value === undefined) return
+
+      for (var j = 0, carry = value; j < bytes.length; ++j) {
+        carry += bytes[j] * BASE
+        bytes[j] = carry & 0xff
+        carry >>= 8
+      }
+
+      while (carry > 0) {
+        bytes.push(carry & 0xff)
+        carry >>= 8
+      }
+    }
+
+    // deal with leading zeros
+    for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+      bytes.push(0)
+    }
+
+    return Buffer.from(bytes.reverse())
+  }
+
+  function decode (string) {
+    var buffer = decodeUnsafe(string)
+    if (buffer) return buffer
+
+    throw new Error('Non-base' + BASE + ' character')
+  }
+
+  return {
+    encode: encode,
+    decodeUnsafe: decodeUnsafe,
+    decode: decode
+  }
+}
+
+},{"safe-buffer":6}],6:[function(require,module,exports){
+module.exports = require('buffer')
+
+},{"buffer":2}]},{},[4])(4)
+});</script>
+        <script>(function (root) {
+   "use strict";
+
+/***** unorm.js *****/
+
+/*
+ * UnicodeNormalizer 1.0.0
+ * Copyright (c) 2008 Matsuza
+ * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
+ * $Date: 2008-06-05 16:44:17 +0200 (Thu, 05 Jun 2008) $
+ * $Rev: 13309 $
+ */
+
+   var DEFAULT_FEATURE = [null, 0, {}];
+   var CACHE_THRESHOLD = 10;
+   var SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7, LCount = 19, VCount = 21, TCount = 28;
+   var NCount = VCount * TCount; // 588
+   var SCount = LCount * NCount; // 11172
+
+   var UChar = function(cp, feature){
+      this.codepoint = cp;
+      this.feature = feature;
+   };
+
+   // Strategies
+   var cache = {};
+   var cacheCounter = [];
+   for (var i = 0; i <= 0xFF; ++i){
+      cacheCounter[i] = 0;
+   }
+
+   function fromCache(next, cp, needFeature){
+      var ret = cache[cp];
+      if(!ret){
+         ret = next(cp, needFeature);
+         if(!!ret.feature && ++cacheCounter[(cp >> 8) & 0xFF] > CACHE_THRESHOLD){
+            cache[cp] = ret;
+         }
+      }
+      return ret;
+   }
+
+   function fromData(next, cp, needFeature){
+      var hash = cp & 0xFF00;
+      var dunit = UChar.udata[hash] || {};
+      var f = dunit[cp];
+      return f ? new UChar(cp, f) : new UChar(cp, DEFAULT_FEATURE);
+   }
+   function fromCpOnly(next, cp, needFeature){
+      return !!needFeature ? next(cp, needFeature) : new UChar(cp, null);
+   }
+   function fromRuleBasedJamo(next, cp, needFeature){
+      var j;
+      if(cp < LBase || (LBase + LCount <= cp && cp < SBase) || (SBase + SCount < cp)){
+         return next(cp, needFeature);
+      }
+      if(LBase <= cp && cp < LBase + LCount){
+         var c = {};
+         var base = (cp - LBase) * VCount;
+         for (j = 0; j < VCount; ++j){
+            c[VBase + j] = SBase + TCount * (j + base);
+         }
+         return new UChar(cp, [,,c]);
+      }
+
+      var SIndex = cp - SBase;
+      var TIndex = SIndex % TCount;
+      var feature = [];
+      if(TIndex !== 0){
+         feature[0] = [SBase + SIndex - TIndex, TBase + TIndex];
+      } else {
+         feature[0] = [LBase + Math.floor(SIndex / NCount), VBase + Math.floor((SIndex % NCount) / TCount)];
+         feature[2] = {};
+         for (j = 1; j < TCount; ++j){
+            feature[2][TBase + j] = cp + j;
+         }
+      }
+      return new UChar(cp, feature);
+   }
+   function fromCpFilter(next, cp, needFeature){
+      return cp < 60 || 13311 < cp && cp < 42607 ? new UChar(cp, DEFAULT_FEATURE) : next(cp, needFeature);
+   }
+
+   var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
+
+   UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
+      return function (cp, needFeature) {
+         return strategy(next, cp, needFeature);
+      };
+   }, null);
+
+   UChar.isHighSurrogate = function(cp){
+      return cp >= 0xD800 && cp <= 0xDBFF;
+   };
+   UChar.isLowSurrogate = function(cp){
+      return cp >= 0xDC00 && cp <= 0xDFFF;
+   };
+
+   UChar.prototype.prepFeature = function(){
+      if(!this.feature){
+         this.feature = UChar.fromCharCode(this.codepoint, true).feature;
+      }
+   };
+
+   UChar.prototype.toString = function(){
+      if(this.codepoint < 0x10000){
+         return String.fromCharCode(this.codepoint);
+      } else {
+         var x = this.codepoint - 0x10000;
+         return String.fromCharCode(Math.floor(x / 0x400) + 0xD800, x % 0x400 + 0xDC00);
+      }
+   };
+
+   UChar.prototype.getDecomp = function(){
+      this.prepFeature();
+      return this.feature[0] || null;
+   };
+
+   UChar.prototype.isCompatibility = function(){
+      this.prepFeature();
+      return !!this.feature[1] && (this.feature[1] & (1 << 8));
+   };
+   UChar.prototype.isExclude = function(){
+      this.prepFeature();
+      return !!this.feature[1] && (this.feature[1] & (1 << 9));
+   };
+   UChar.prototype.getCanonicalClass = function(){
+      this.prepFeature();
+      return !!this.feature[1] ? (this.feature[1] & 0xff) : 0;
+   };
+   UChar.prototype.getComposite = function(following){
+      this.prepFeature();
+      if(!this.feature[2]){
+         return null;
+      }
+      var cp = this.feature[2][following.codepoint];
+      return cp ? UChar.fromCharCode(cp) : null;
+   };
+
+   var UCharIterator = function(str){
+      this.str = str;
+      this.cursor = 0;
+   };
+   UCharIterator.prototype.next = function(){
+      if(!!this.str && this.cursor < this.str.length){
+         var cp = this.str.charCodeAt(this.cursor++);
+         var d;
+         if(UChar.isHighSurrogate(cp) && this.cursor < this.str.length && UChar.isLowSurrogate((d = this.str.charCodeAt(this.cursor)))){
+            cp = (cp - 0xD800) * 0x400 + (d -0xDC00) + 0x10000;
+            ++this.cursor;
+         }
+         return UChar.fromCharCode(cp);
+      } else {
+         this.str = null;
+         return null;
+      }
+   };
+
+   var RecursDecompIterator = function(it, cano){
+      this.it = it;
+      this.canonical = cano;
+      this.resBuf = [];
+   };
+
+   RecursDecompIterator.prototype.next = function(){
+      function recursiveDecomp(cano, uchar){
+         var decomp = uchar.getDecomp();
+         if(!!decomp && !(cano && uchar.isCompatibility())){
+            var ret = [];
+            for(var i = 0; i < decomp.length; ++i){
+               var a = recursiveDecomp(cano, UChar.fromCharCode(decomp[i]));
+                ret = ret.concat(a);
+            }
+            return ret;
+         } else {
+            return [uchar];
+         }
+      }
+      if(this.resBuf.length === 0){
+         var uchar = this.it.next();
+         if(!uchar){
+            return null;
+         }
+         this.resBuf = recursiveDecomp(this.canonical, uchar);
+      }
+      return this.resBuf.shift();
+   };
+
+   var DecompIterator = function(it){
+      this.it = it;
+      this.resBuf = [];
+   };
+
+   DecompIterator.prototype.next = function(){
+      var cc;
+      if(this.resBuf.length === 0){
+         do{
+            var uchar = this.it.next();
+            if(!uchar){
+               break;
+            }
+            cc = uchar.getCanonicalClass();
+            var inspt = this.resBuf.length;
+            if(cc !== 0){
+               for(; inspt > 0; --inspt){
+                  var uchar2 = this.resBuf[inspt - 1];
+                  var cc2 = uchar2.getCanonicalClass();
+                  if(cc2 <= cc){
+                     break;
+                  }
+               }
+            }
+            this.resBuf.splice(inspt, 0, uchar);
+         } while(cc !== 0);
+      }
+      return this.resBuf.shift();
+   };
+
+   var CompIterator = function(it){
+      this.it = it;
+      this.procBuf = [];
+      this.resBuf = [];
+      this.lastClass = null;
+   };
+
+   CompIterator.prototype.next = function(){
+      while(this.resBuf.length === 0){
+         var uchar = this.it.next();
+         if(!uchar){
+            this.resBuf = this.procBuf;
+            this.procBuf = [];
+            break;
+         }
+         if(this.procBuf.length === 0){
+            this.lastClass = uchar.getCanonicalClass();
+            this.procBuf.push(uchar);
+         } else {
+            var starter = this.procBuf[0];
+            var composite = starter.getComposite(uchar);
+            var cc = uchar.getCanonicalClass();
+            if(!!composite && (this.lastClass < cc || this.lastClass === 0)){
+               this.procBuf[0] = composite;
+            } else {
+               if(cc === 0){
+                  this.resBuf = this.procBuf;
+                  this.procBuf = [];
+               }
+               this.lastClass = cc;
+               this.procBuf.push(uchar);
+            }
+         }
+      }
+      return this.resBuf.shift();
+   };
+
+   var createIterator = function(mode, str){
+      switch(mode){
+         case "NFD":
+            return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true));
+         case "NFKD":
+            return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false));
+         case "NFC":
+            return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true)));
+         case "NFKC":
+            return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false)));
+      }
+      throw mode + " is invalid";
+   };
+   var normalize = function(mode, str){
+      var it = createIterator(mode, str);
+      var ret = "";
+      var uchar;
+      while(!!(uchar = it.next())){
+         ret += uchar.toString();
+      }
+      return ret;
+   };
+
+   /* API functions */
+   function nfd(str){
+      return normalize("NFD", str);
+   }
+
+   function nfkd(str){
+      return normalize("NFKD", str);
+   }
+
+   function nfc(str){
+      return normalize("NFC", str);
+   }
+
+   function nfkc(str){
+      return normalize("NFKC", str);
+   }
+
+/* Unicode data */
+UChar.udata={
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+
+};
+
+   /***** Module to export */
+   var unorm = {
+      nfc: nfc,
+      nfd: nfd,
+      nfkc: nfkc,
+      nfkd: nfkd
+   };
+
+   /*globals module:true,define:true*/
+
+   // CommonJS
+   if (typeof module === "object") {
+      module.exports = unorm;
+
+   // AMD
+   } else if (typeof define === "function" && define.amd) {
+      define("unorm", function () {
+         return unorm;
+      });
+
+   // Global
+   } else {
+      root.unorm = unorm;
+   }
+
+   /***** Export as shim for String::normalize method *****/
+   /*
+      http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+
+      21.1.3.12 String.prototype.normalize(form="NFC")
+      When the normalize method is called with one argument form, the following steps are taken:
+
+      1. Let O be CheckObjectCoercible(this value).
+      2. Let S be ToString(O).
+      3. ReturnIfAbrupt(S).
+      4. If form is not provided or undefined let form be "NFC".
+      5. Let f be ToString(form).
+      6. ReturnIfAbrupt(f).
+      7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
+      8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
+      9. Return ns.
+
+      The length property of the normalize method is 0.
+
+      *NOTE* The normalize function is intentionally generic; it does not require that its this value be a String object. Therefore it can be transferred to other kinds of objects for use as a method.
+   */
+    unorm.shimApplied = false;
+
+   if (!String.prototype.normalize) {
+      String.prototype.normalize = function(form) {
+         var str = "" + this;
+         form =  form === undefined ? "NFC" : form;
+
+         if (form === "NFC") {
+            return unorm.nfc(str);
+         } else if (form === "NFD") {
+            return unorm.nfd(str);
+         } else if (form === "NFKC") {
+            return unorm.nfkc(str);
+         } else if (form === "NFKD") {
+            return unorm.nfkd(str);
+         } else {
+            throw new RangeError("Invalid normalization form: " + form);
+         }
+      };
+
+      unorm.shimApplied = true;
+   }
+}(this));
+</script>
+        <script>/*!
+ * jQuery JavaScript Library v3.2.1
+ * https://jquery.com/
+ *
+ * Includes Sizzle.js
+ * https://sizzlejs.com/
+ *
+ * Copyright JS Foundation and other contributors
+ * Released under the MIT license
+ * https://jquery.org/license
+ *
+ * Date: 2017-03-20T18:59Z
+ */
+( function( global, factory ) {
+
+       "use strict";
+
+       if ( typeof module === "object" && typeof module.exports === "object" ) {
+
+               // For CommonJS and CommonJS-like environments where a proper `window`
+               // is present, execute the factory and get jQuery.
+               // For environments that do not have a `window` with a `document`
+               // (such as Node.js), expose a factory as module.exports.
+               // This accentuates the need for the creation of a real `window`.
+               // e.g. var jQuery = require("jquery")(window);
+               // See ticket #14549 for more info.
+               module.exports = global.document ?
+                       factory( global, true ) :
+                       function( w ) {
+                               if ( !w.document ) {
+                                       throw new Error( "jQuery requires a window with a document" );
+                               }
+                               return factory( w );
+                       };
+       } else {
+               factory( global );
+       }
+
+// Pass this if window is not defined yet
+} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
+
+// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
+// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
+// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
+// enough that all such attempts are guarded in a try block.
+"use strict";
+
+var arr = [];
+
+var document = window.document;
+
+var getProto = Object.getPrototypeOf;
+
+var slice = arr.slice;
+
+var concat = arr.concat;
+
+var push = arr.push;
+
+var indexOf = arr.indexOf;
+
+var class2type = {};
+
+var toString = class2type.toString;
+
+var hasOwn = class2type.hasOwnProperty;
+
+var fnToString = hasOwn.toString;
+
+var ObjectFunctionString = fnToString.call( Object );
+
+var support = {};
+
+
+
+       function DOMEval( code, doc ) {
+               doc = doc || document;
+
+               var script = doc.createElement( "script" );
+
+               script.text = code;
+               doc.head.appendChild( script ).parentNode.removeChild( script );
+       }
+/* global Symbol */
+// Defining this global in .eslintrc.json would create a danger of using the global
+// unguarded in another place, it seems safer to define global only for this module
+
+
+
+var
+       version = "3.2.1",
+
+       // Define a local copy of jQuery
+       jQuery = function( selector, context ) {
+
+               // The jQuery object is actually just the init constructor 'enhanced'
+               // Need init if jQuery is called (just allow error to be thrown if not included)
+               return new jQuery.fn.init( selector, context );
+       },
+
+       // Support: Android <=4.0 only
+       // Make sure we trim BOM and NBSP
+       rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
+
+       // Matches dashed string for camelizing
+       rmsPrefix = /^-ms-/,
+       rdashAlpha = /-([a-z])/g,
+
+       // Used by jQuery.camelCase as callback to replace()
+       fcamelCase = function( all, letter ) {
+               return letter.toUpperCase();
+       };
+
+jQuery.fn = jQuery.prototype = {
+
+       // The current version of jQuery being used
+       jquery: version,
+
+       constructor: jQuery,
+
+       // The default length of a jQuery object is 0
+       length: 0,
+
+       toArray: function() {
+               return slice.call( this );
+       },
+
+       // Get the Nth element in the matched element set OR
+       // Get the whole matched element set as a clean array
+       get: function( num ) {
+
+               // Return all the elements in a clean array
+               if ( num == null ) {
+                       return slice.call( this );
+               }
+
+               // Return just the one element from the set
+               return num < 0 ? this[ num + this.length ] : this[ num ];
+       },
+
+       // Take an array of elements and push it onto the stack
+       // (returning the new matched element set)
+       pushStack: function( elems ) {
+
+               // Build a new jQuery matched element set
+               var ret = jQuery.merge( this.constructor(), elems );
+
+               // Add the old object onto the stack (as a reference)
+               ret.prevObject = this;
+
+               // Return the newly-formed element set
+               return ret;
+       },
+
+       // Execute a callback for every element in the matched set.
+       each: function( callback ) {
+               return jQuery.each( this, callback );
+       },
+
+       map: function( callback ) {
+               return this.pushStack( jQuery.map( this, function( elem, i ) {
+                       return callback.call( elem, i, elem );
+               } ) );
+       },
+
+       slice: function() {
+               return this.pushStack( slice.apply( this, arguments ) );
+       },
+
+       first: function() {
+               return this.eq( 0 );
+       },
+
+       last: function() {
+               return this.eq( -1 );
+       },
+
+       eq: function( i ) {
+               var len = this.length,
+                       j = +i + ( i < 0 ? len : 0 );
+               return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
+       },
+
+       end: function() {
+               return this.prevObject || this.constructor();
+       },
+
+       // For internal use only.
+       // Behaves like an Array's method, not like a jQuery method.
+       push: push,
+       sort: arr.sort,
+       splice: arr.splice
+};
+
+jQuery.extend = jQuery.fn.extend = function() {
+       var options, name, src, copy, copyIsArray, clone,
+               target = arguments[ 0 ] || {},
+               i = 1,
+               length = arguments.length,
+               deep = false;
+
+       // Handle a deep copy situation
+       if ( typeof target === "boolean" ) {
+               deep = target;
+
+               // Skip the boolean and the target
+               target = arguments[ i ] || {};
+               i++;
+       }
+
+       // Handle case when target is a string or something (possible in deep copy)
+       if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
+               target = {};
+       }
+
+       // Extend jQuery itself if only one argument is passed
+       if ( i === length ) {
+               target = this;
+               i--;
+       }
+
+       for ( ; i < length; i++ ) {
+
+               // Only deal with non-null/undefined values
+               if ( ( options = arguments[ i ] ) != null ) {
+
+                       // Extend the base object
+                       for ( name in options ) {
+                               src = target[ name ];
+                               copy = options[ name ];
+
+                               // Prevent never-ending loop
+                               if ( target === copy ) {
+                                       continue;
+                               }
+
+                               // Recurse if we're merging plain objects or arrays
+                               if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
+                                       ( copyIsArray = Array.isArray( copy ) ) ) ) {
+
+                                       if ( copyIsArray ) {
+                                               copyIsArray = false;
+                                               clone = src && Array.isArray( src ) ? src : [];
+
+                                       } else {
+                                               clone = src && jQuery.isPlainObject( src ) ? src : {};
+                                       }
+
+                                       // Never move original objects, clone them
+                                       target[ name ] = jQuery.extend( deep, clone, copy );
+
+                               // Don't bring in undefined values
+                               } else if ( copy !== undefined ) {
+                                       target[ name ] = copy;
+                               }
+                       }
+               }
+       }
+
+       // Return the modified object
+       return target;
+};
+
+jQuery.extend( {
+
+       // Unique for each copy of jQuery on the page
+       expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
+
+       // Assume jQuery is ready without the ready module
+       isReady: true,
+
+       error: function( msg ) {
+               throw new Error( msg );
+       },
+
+       noop: function() {},
+
+       isFunction: function( obj ) {
+               return jQuery.type( obj ) === "function";
+       },
+
+       isWindow: function( obj ) {
+               return obj != null && obj === obj.window;
+       },
+
+       isNumeric: function( obj ) {
+
+               // As of jQuery 3.0, isNumeric is limited to
+               // strings and numbers (primitives or objects)
+               // that can be coerced to finite numbers (gh-2662)
+               var type = jQuery.type( obj );
+               return ( type === "number" || type === "string" ) &&
+
+                       // parseFloat NaNs numeric-cast false positives ("")
+                       // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
+                       // subtraction forces infinities to NaN
+                       !isNaN( obj - parseFloat( obj ) );
+       },
+
+       isPlainObject: function( obj ) {
+               var proto, Ctor;
+
+               // Detect obvious negatives
+               // Use toString instead of jQuery.type to catch host objects
+               if ( !obj || toString.call( obj ) !== "[object Object]" ) {
+                       return false;
+               }
+
+               proto = getProto( obj );
+
+               // Objects with no prototype (e.g., `Object.create( null )`) are plain
+               if ( !proto ) {
+                       return true;
+               }
+
+               // Objects with prototype are plain iff they were constructed by a global Object function
+               Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
+               return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
+       },
+
+       isEmptyObject: function( obj ) {
+
+               /* eslint-disable no-unused-vars */
+               // See https://github.com/eslint/eslint/issues/6125
+               var name;
+
+               for ( name in obj ) {
+                       return false;
+               }
+               return true;
+       },
+
+       type: function( obj ) {
+               if ( obj == null ) {
+                       return obj + "";
+               }
+
+               // Support: Android <=2.3 only (functionish RegExp)
+               return typeof obj === "object" || typeof obj === "function" ?
+                       class2type[ toString.call( obj ) ] || "object" :
+                       typeof obj;
+       },
+
+       // Evaluates a script in a global context
+       globalEval: function( code ) {
+               DOMEval( code );
+       },
+
+       // Convert dashed to camelCase; used by the css and data modules
+       // Support: IE <=9 - 11, Edge 12 - 13
+       // Microsoft forgot to hump their vendor prefix (#9572)
+       camelCase: function( string ) {
+               return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+       },
+
+       each: function( obj, callback ) {
+               var length, i = 0;
+
+               if ( isArrayLike( obj ) ) {
+                       length = obj.length;
+                       for ( ; i < length; i++ ) {
+                               if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+                                       break;
+                               }
+                       }
+               } else {
+                       for ( i in obj ) {
+                               if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+                                       break;
+                               }
+                       }
+               }
+
+               return obj;
+       },
+
+       // Support: Android <=4.0 only
+       trim: function( text ) {
+               return text == null ?
+                       "" :
+                       ( text + "" ).replace( rtrim, "" );
+       },
+
+       // results is for internal usage only
+       makeArray: function( arr, results ) {
+               var ret = results || [];
+
+               if ( arr != null ) {
+                       if ( isArrayLike( Object( arr ) ) ) {
+                               jQuery.merge( ret,
+                                       typeof arr === "string" ?
+                                       [ arr ] : arr
+                               );
+                       } else {
+                               push.call( ret, arr );
+                       }
+               }
+
+               return ret;
+       },
+
+       inArray: function( elem, arr, i ) {
+               return arr == null ? -1 : indexOf.call( arr, elem, i );
+       },
+
+       // Support: Android <=4.0 only, PhantomJS 1 only
+       // push.apply(_, arraylike) throws on ancient WebKit
+       merge: function( first, second ) {
+               var len = +second.length,
+                       j = 0,
+                       i = first.length;
+
+               for ( ; j < len; j++ ) {
+                       first[ i++ ] = second[ j ];
+               }
+
+               first.length = i;
+
+               return first;
+       },
+
+       grep: function( elems, callback, invert ) {
+               var callbackInverse,
+                       matches = [],
+                       i = 0,
+                       length = elems.length,
+                       callbackExpect = !invert;
+
+               // Go through the array, only saving the items
+               // that pass the validator function
+               for ( ; i < length; i++ ) {
+                       callbackInverse = !callback( elems[ i ], i );
+                       if ( callbackInverse !== callbackExpect ) {
+                               matches.push( elems[ i ] );
+                       }
+               }
+
+               return matches;
+       },
+
+       // arg is for internal usage only
+       map: function( elems, callback, arg ) {
+               var length, value,
+                       i = 0,
+                       ret = [];
+
+               // Go through the array, translating each of the items to their new values
+               if ( isArrayLike( elems ) ) {
+                       length = elems.length;
+                       for ( ; i < length; i++ ) {
+                               value = callback( elems[ i ], i, arg );
+
+                               if ( value != null ) {
+                                       ret.push( value );
+                               }
+                       }
+
+               // Go through every key on the object,
+               } else {
+                       for ( i in elems ) {
+                               value = callback( elems[ i ], i, arg );
+
+                               if ( value != null ) {
+                                       ret.push( value );
+                               }
+                       }
+               }
+
+               // Flatten any nested arrays
+               return concat.apply( [], ret );
+       },
+
+       // A global GUID counter for objects
+       guid: 1,
+
+       // Bind a function to a context, optionally partially applying any
+       // arguments.
+       proxy: function( fn, context ) {
+               var tmp, args, proxy;
+
+               if ( typeof context === "string" ) {
+                       tmp = fn[ context ];
+                       context = fn;
+                       fn = tmp;
+               }
+
+               // Quick check to determine if target is callable, in the spec
+               // this throws a TypeError, but we will just return undefined.
+               if ( !jQuery.isFunction( fn ) ) {
+                       return undefined;
+               }
+
+               // Simulated bind
+               args = slice.call( arguments, 2 );
+               proxy = function() {
+                       return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
+               };
+
+               // Set the guid of unique handler to the same of original handler, so it can be removed
+               proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+               return proxy;
+       },
+
+       now: Date.now,
+
+       // jQuery.support is not used in Core but other projects attach their
+       // properties to it so it needs to exist.
+       support: support
+} );
+
+if ( typeof Symbol === "function" ) {
+       jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
+}
+
+// Populate the class2type map
+jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
+function( i, name ) {
+       class2type[ "[object " + name + "]" ] = name.toLowerCase();
+} );
+
+function isArrayLike( obj ) {
+
+       // Support: real iOS 8.2 only (not reproducible in simulator)
+       // `in` check used to prevent JIT error (gh-2145)
+       // hasOwn isn't used here due to false negatives
+       // regarding Nodelist length in IE
+       var length = !!obj && "length" in obj && obj.length,
+               type = jQuery.type( obj );
+
+       if ( type === "function" || jQuery.isWindow( obj ) ) {
+               return false;
+       }
+
+       return type === "array" || length === 0 ||
+               typeof length === "number" && length > 0 && ( length - 1 ) in obj;
+}
+var Sizzle =
+/*!
+ * Sizzle CSS Selector Engine v2.3.3
+ * https://sizzlejs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2016-08-08
+ */
+(function( window ) {
+
+var i,
+       support,
+       Expr,
+       getText,
+       isXML,
+       tokenize,
+       compile,
+       select,
+       outermostContext,
+       sortInput,
+       hasDuplicate,
+
+       // Local document vars
+       setDocument,
+       document,
+       docElem,
+       documentIsHTML,
+       rbuggyQSA,
+       rbuggyMatches,
+       matches,
+       contains,
+
+       // Instance-specific data
+       expando = "sizzle" + 1 * new Date(),
+       preferredDoc = window.document,
+       dirruns = 0,
+       done = 0,
+       classCache = createCache(),
+       tokenCache = createCache(),
+       compilerCache = createCache(),
+       sortOrder = function( a, b ) {
+               if ( a === b ) {
+                       hasDuplicate = true;
+               }
+               return 0;
+       },
+
+       // Instance methods
+       hasOwn = ({}).hasOwnProperty,
+       arr = [],
+       pop = arr.pop,
+       push_native = arr.push,
+       push = arr.push,
+       slice = arr.slice,
+       // Use a stripped-down indexOf as it's faster than native
+       // https://jsperf.com/thor-indexof-vs-for/5
+       indexOf = function( list, elem ) {
+               var i = 0,
+                       len = list.length;
+               for ( ; i < len; i++ ) {
+                       if ( list[i] === elem ) {
+                               return i;
+                       }
+               }
+               return -1;
+       },
+
+       booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
+
+       // Regular expressions
+
+       // http://www.w3.org/TR/css3-selectors/#whitespace
+       whitespace = "[\\x20\\t\\r\\n\\f]",
+
+       // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+       identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
+
+       // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
+       attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
+               // Operator (capture 2)
+               "*([*^$|!~]?=)" + whitespace +
+               // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
+               "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
+               "*\\]",
+
+       pseudos = ":(" + identifier + ")(?:\\((" +
+               // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
+               // 1. quoted (capture 3; capture 4 or capture 5)
+               "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
+               // 2. simple (capture 6)
+               "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
+               // 3. anything else (capture 2)
+               ".*" +
+               ")\\)|)",
+
+       // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+       rwhitespace = new RegExp( whitespace + "+", "g" ),
+       rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+       rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+       rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
+
+       rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
+
+       rpseudo = new RegExp( pseudos ),
+       ridentifier = new RegExp( "^" + identifier + "$" ),
+
+       matchExpr = {
+               "ID": new RegExp( "^#(" + identifier + ")" ),
+               "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
+               "TAG": new RegExp( "^(" + identifier + "|[*])" ),
+               "ATTR": new RegExp( "^" + attributes ),
+               "PSEUDO": new RegExp( "^" + pseudos ),
+               "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+                       "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+                       "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+               "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+               // For use in libraries implementing .is()
+               // We use this for POS matching in `select`
+               "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+                       whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+       },
+
+       rinputs = /^(?:input|select|textarea|button)$/i,
+       rheader = /^h\d$/i,
+
+       rnative = /^[^{]+\{\s*\[native \w/,
+
+       // Easily-parseable/retrievable ID or TAG or CLASS selectors
+       rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+       rsibling = /[+~]/,
+
+       // CSS escapes
+       // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+       runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
+       funescape = function( _, escaped, escapedWhitespace ) {
+               var high = "0x" + escaped - 0x10000;
+               // NaN means non-codepoint
+               // Support: Firefox<24
+               // Workaround erroneous numeric interpretation of +"0x"
+               return high !== high || escapedWhitespace ?
+                       escaped :
+                       high < 0 ?
+                               // BMP codepoint
+                               String.fromCharCode( high + 0x10000 ) :
+                               // Supplemental Plane codepoint (surrogate pair)
+                               String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+       },
+
+       // CSS string/identifier serialization
+       // https://drafts.csswg.org/cssom/#common-serializing-idioms
+       rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
+       fcssescape = function( ch, asCodePoint ) {
+               if ( asCodePoint ) {
+
+                       // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
+                       if ( ch === "\0" ) {
+                               return "\uFFFD";
+                       }
+
+                       // Control characters and (dependent upon position) numbers get escaped as code points
+                       return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
+               }
+
+               // Other potentially-special ASCII characters get backslash-escaped
+               return "\\" + ch;
+       },
+
+       // Used for iframes
+       // See setDocument()
+       // Removing the function wrapper causes a "Permission Denied"
+       // error in IE
+       unloadHandler = function() {
+               setDocument();
+       },
+
+       disabledAncestor = addCombinator(
+               function( elem ) {
+                       return elem.disabled === true && ("form" in elem || "label" in elem);
+               },
+               { dir: "parentNode", next: "legend" }
+       );
+
+// Optimize for push.apply( _, NodeList )
+try {
+       push.apply(
+               (arr = slice.call( preferredDoc.childNodes )),
+               preferredDoc.childNodes
+       );
+       // Support: Android<4.0
+       // Detect silently failing push.apply
+       arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+       push = { apply: arr.length ?
+
+               // Leverage slice if possible
+               function( target, els ) {
+                       push_native.apply( target, slice.call(els) );
+               } :
+
+               // Support: IE<9
+               // Otherwise append directly
+               function( target, els ) {
+                       var j = target.length,
+                               i = 0;
+                       // Can't trust NodeList.length
+                       while ( (target[j++] = els[i++]) ) {}
+                       target.length = j - 1;
+               }
+       };
+}
+
+function Sizzle( selector, context, results, seed ) {
+       var m, i, elem, nid, match, groups, newSelector,
+               newContext = context && context.ownerDocument,
+
+               // nodeType defaults to 9, since context defaults to document
+               nodeType = context ? context.nodeType : 9;
+
+       results = results || [];
+
+       // Return early from calls with invalid selector or context
+       if ( typeof selector !== "string" || !selector ||
+               nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
+
+               return results;
+       }
+
+       // Try to shortcut find operations (as opposed to filters) in HTML documents
+       if ( !seed ) {
+
+               if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+                       setDocument( context );
+               }
+               context = context || document;
+
+               if ( documentIsHTML ) {
+
+                       // If the selector is sufficiently simple, try using a "get*By*" DOM method
+                       // (excepting DocumentFragment context, where the methods don't exist)
+                       if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
+
+                               // ID selector
+                               if ( (m = match[1]) ) {
+
+                                       // Document context
+                                       if ( nodeType === 9 ) {
+                                               if ( (elem = context.getElementById( m )) ) {
+
+                                                       // Support: IE, Opera, Webkit
+                                                       // TODO: identify versions
+                                                       // getElementById can match elements by name instead of ID
+                                                       if ( elem.id === m ) {
+                                                               results.push( elem );
+                                                               return results;
+                                                       }
+                                               } else {
+                                                       return results;
+                                               }
+
+                                       // Element context
+                                       } else {
+
+                                               // Support: IE, Opera, Webkit
+                                               // TODO: identify versions
+                                               // getElementById can match elements by name instead of ID
+                                               if ( newContext && (elem = newContext.getElementById( m )) &&
+                                                       contains( context, elem ) &&
+                                                       elem.id === m ) {
+
+                                                       results.push( elem );
+                                                       return results;
+                                               }
+                                       }
+
+                               // Type selector
+                               } else if ( match[2] ) {
+                                       push.apply( results, context.getElementsByTagName( selector ) );
+                                       return results;
+
+                               // Class selector
+                               } else if ( (m = match[3]) && support.getElementsByClassName &&
+                                       context.getElementsByClassName ) {
+
+                                       push.apply( results, context.getElementsByClassName( m ) );
+                                       return results;
+                               }
+                       }
+
+                       // Take advantage of querySelectorAll
+                       if ( support.qsa &&
+                               !compilerCache[ selector + " " ] &&
+                               (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
+
+                               if ( nodeType !== 1 ) {
+                                       newContext = context;
+                                       newSelector = selector;
+
+                               // qSA looks outside Element context, which is not what we want
+                               // Thanks to Andrew Dupont for this workaround technique
+                               // Support: IE <=8
+                               // Exclude object elements
+                               } else if ( context.nodeName.toLowerCase() !== "object" ) {
+
+                                       // Capture the context ID, setting it first if necessary
+                                       if ( (nid = context.getAttribute( "id" )) ) {
+                                               nid = nid.replace( rcssescape, fcssescape );
+                                       } else {
+                                               context.setAttribute( "id", (nid = expando) );
+                                       }
+
+                                       // Prefix every selector in the list
+                                       groups = tokenize( selector );
+                                       i = groups.length;
+                                       while ( i-- ) {
+                                               groups[i] = "#" + nid + " " + toSelector( groups[i] );
+                                       }
+                                       newSelector = groups.join( "," );
+
+                                       // Expand context for sibling selectors
+                                       newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
+                                               context;
+                               }
+
+                               if ( newSelector ) {
+                                       try {
+                                               push.apply( results,
+                                                       newContext.querySelectorAll( newSelector )
+                                               );
+                                               return results;
+                                       } catch ( qsaError ) {
+                                       } finally {
+                                               if ( nid === expando ) {
+                                                       context.removeAttribute( "id" );
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       // All others
+       return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {function(string, object)} Returns the Object data after storing it on itself with
+ *     property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ *     deleting the oldest entry
+ */
+function createCache() {
+       var keys = [];
+
+       function cache( key, value ) {
+               // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+               if ( keys.push( key + " " ) > Expr.cacheLength ) {
+                       // Only keep the most recent entries
+                       delete cache[ keys.shift() ];
+               }
+               return (cache[ key + " " ] = value);
+       }
+       return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+       fn[ expando ] = true;
+       return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created element and returns a boolean result
+ */
+function assert( fn ) {
+       var el = document.createElement("fieldset");
+
+       try {
+               return !!fn( el );
+       } catch (e) {
+               return false;
+       } finally {
+               // Remove from its parent by default
+               if ( el.parentNode ) {
+                       el.parentNode.removeChild( el );
+               }
+               // release memory in IE
+               el = null;
+       }
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+       var arr = attrs.split("|"),
+               i = arr.length;
+
+       while ( i-- ) {
+               Expr.attrHandle[ arr[i] ] = handler;
+       }
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+       var cur = b && a,
+               diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+                       a.sourceIndex - b.sourceIndex;
+
+       // Use IE sourceIndex if available on both nodes
+       if ( diff ) {
+               return diff;
+       }
+
+       // Check if b follows a
+       if ( cur ) {
+               while ( (cur = cur.nextSibling) ) {
+                       if ( cur === b ) {
+                               return -1;
+                       }
+               }
+       }
+
+       return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+       return function( elem ) {
+               var name = elem.nodeName.toLowerCase();
+               return name === "input" && elem.type === type;
+       };
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+       return function( elem ) {
+               var name = elem.nodeName.toLowerCase();
+               return (name === "input" || name === "button") && elem.type === type;
+       };
+}
+
+/**
+ * Returns a function to use in pseudos for :enabled/:disabled
+ * @param {Boolean} disabled true for :disabled; false for :enabled
+ */
+function createDisabledPseudo( disabled ) {
+
+       // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
+       return function( elem ) {
+
+               // Only certain elements can match :enabled or :disabled
+               // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
+               // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
+               if ( "form" in elem ) {
+
+                       // Check for inherited disabledness on relevant non-disabled elements:
+                       // * listed form-associated elements in a disabled fieldset
+                       //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
+                       //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
+                       // * option elements in a disabled optgroup
+                       //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
+                       // All such elements have a "form" property.
+                       if ( elem.parentNode && elem.disabled === false ) {
+
+                               // Option elements defer to a parent optgroup if present
+                               if ( "label" in elem ) {
+                                       if ( "label" in elem.parentNode ) {
+                                               return elem.parentNode.disabled === disabled;
+                                       } else {
+                                               return elem.disabled === disabled;
+                                       }
+                               }
+
+                               // Support: IE 6 - 11
+                               // Use the isDisabled shortcut property to check for disabled fieldset ancestors
+                               return elem.isDisabled === disabled ||
+
+                                       // Where there is no isDisabled, check manually
+                                       /* jshint -W018 */
+                                       elem.isDisabled !== !disabled &&
+                                               disabledAncestor( elem ) === disabled;
+                       }
+
+                       return elem.disabled === disabled;
+
+               // Try to winnow out elements that can't be disabled before trusting the disabled property.
+               // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
+               // even exist on them, let alone have a boolean value.
+               } else if ( "label" in elem ) {
+                       return elem.disabled === disabled;
+               }
+
+               // Remaining elements are neither :enabled nor :disabled
+               return false;
+       };
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+       return markFunction(function( argument ) {
+               argument = +argument;
+               return markFunction(function( seed, matches ) {
+                       var j,
+                               matchIndexes = fn( [], seed.length, argument ),
+                               i = matchIndexes.length;
+
+                       // Match elements found at the specified indexes
+                       while ( i-- ) {
+                               if ( seed[ (j = matchIndexes[i]) ] ) {
+                                       seed[j] = !(matches[j] = seed[j]);
+                               }
+                       }
+               });
+       });
+}
+
+/**
+ * Checks a node for validity as a Sizzle context
+ * @param {Element|Object=} context
+ * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
+ */
+function testContext( context ) {
+       return context && typeof context.getElementsByTagName !== "undefined" && context;
+}
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Detects XML nodes
+ * @param {Element|Object} elem An element or a document
+ * @returns {Boolean} True iff elem is a non-HTML XML node
+ */
+isXML = Sizzle.isXML = function( elem ) {
+       // documentElement is verified for cases where it doesn't yet exist
+       // (such as loading iframes in IE - #4833)
+       var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+       return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+       var hasCompare, subWindow,
+               doc = node ? node.ownerDocument || node : preferredDoc;
+
+       // Return early if doc is invalid or already selected
+       if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+               return document;
+       }
+
+       // Update global variables
+       document = doc;
+       docElem = document.documentElement;
+       documentIsHTML = !isXML( document );
+
+       // Support: IE 9-11, Edge
+       // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
+       if ( preferredDoc !== document &&
+               (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
+
+               // Support: IE 11, Edge
+               if ( subWindow.addEventListener ) {
+                       subWindow.addEventListener( "unload", unloadHandler, false );
+
+               // Support: IE 9 - 10 only
+               } else if ( subWindow.attachEvent ) {
+                       subWindow.attachEvent( "onunload", unloadHandler );
+               }
+       }
+
+       /* Attributes
+       ---------------------------------------------------------------------- */
+
+       // Support: IE<8
+       // Verify that getAttribute really returns attributes and not properties
+       // (excepting IE8 booleans)
+       support.attributes = assert(function( el ) {
+               el.className = "i";
+               return !el.getAttribute("className");
+       });
+
+       /* getElement(s)By*
+       ---------------------------------------------------------------------- */
+
+       // Check if getElementsByTagName("*") returns only elements
+       support.getElementsByTagName = assert(function( el ) {
+               el.appendChild( document.createComment("") );
+               return !el.getElementsByTagName("*").length;
+       });
+
+       // Support: IE<9
+       support.getElementsByClassName = rnative.test( document.getElementsByClassName );
+
+       // Support: IE<10
+       // Check if getElementById returns elements by name
+       // The broken getElementById methods don't pick up programmatically-set names,
+       // so use a roundabout getElementsByName test
+       support.getById = assert(function( el ) {
+               docElem.appendChild( el ).id = expando;
+               return !document.getElementsByName || !document.getElementsByName( expando ).length;
+       });
+
+       // ID filter and find
+       if ( support.getById ) {
+               Expr.filter["ID"] = function( id ) {
+                       var attrId = id.replace( runescape, funescape );
+                       return function( elem ) {
+                               return elem.getAttribute("id") === attrId;
+                       };
+               };
+               Expr.find["ID"] = function( id, context ) {
+                       if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+                               var elem = context.getElementById( id );
+                               return elem ? [ elem ] : [];
+                       }
+               };
+       } else {
+               Expr.filter["ID"] =  function( id ) {
+                       var attrId = id.replace( runescape, funescape );
+                       return function( elem ) {
+                               var node = typeof elem.getAttributeNode !== "undefined" &&
+                                       elem.getAttributeNode("id");
+                               return node && node.value === attrId;
+                       };
+               };
+
+               // Support: IE 6 - 7 only
+               // getElementById is not reliable as a find shortcut
+               Expr.find["ID"] = function( id, context ) {
+                       if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+                               var node, i, elems,
+                                       elem = context.getElementById( id );
+
+                               if ( elem ) {
+
+                                       // Verify the id attribute
+                                       node = elem.getAttributeNode("id");
+                                       if ( node && node.value === id ) {
+                                               return [ elem ];
+                                       }
+
+                                       // Fall back on getElementsByName
+                                       elems = context.getElementsByName( id );
+                                       i = 0;
+                                       while ( (elem = elems[i++]) ) {
+                                               node = elem.getAttributeNode("id");
+                                               if ( node && node.value === id ) {
+                                                       return [ elem ];
+                                               }
+                                       }
+                               }
+
+                               return [];
+                       }
+               };
+       }
+
+       // Tag
+       Expr.find["TAG"] = support.getElementsByTagName ?
+               function( tag, context ) {
+                       if ( typeof context.getElementsByTagName !== "undefined" ) {
+                               return context.getElementsByTagName( tag );
+
+                       // DocumentFragment nodes don't have gEBTN
+                       } else if ( support.qsa ) {
+                               return context.querySelectorAll( tag );
+                       }
+               } :
+
+               function( tag, context ) {
+                       var elem,
+                               tmp = [],
+                               i = 0,
+                               // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
+                               results = context.getElementsByTagName( tag );
+
+                       // Filter out possible comments
+                       if ( tag === "*" ) {
+                               while ( (elem = results[i++]) ) {
+                                       if ( elem.nodeType === 1 ) {
+                                               tmp.push( elem );
+                                       }
+                               }
+
+                               return tmp;
+                       }
+                       return results;
+               };
+
+       // Class
+       Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
+               if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
+                       return context.getElementsByClassName( className );
+               }
+       };
+
+       /* QSA/matchesSelector
+       ---------------------------------------------------------------------- */
+
+       // QSA and matchesSelector support
+
+       // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+       rbuggyMatches = [];
+
+       // qSa(:focus) reports false when true (Chrome 21)
+       // We allow this because of a bug in IE8/9 that throws an error
+       // whenever `document.activeElement` is accessed on an iframe
+       // So, we allow :focus to pass through QSA all the time to avoid the IE error
+       // See https://bugs.jquery.com/ticket/13378
+       rbuggyQSA = [];
+
+       if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
+               // Build QSA regex
+               // Regex strategy adopted from Diego Perini
+               assert(function( el ) {
+                       // Select is set to empty string on purpose
+                       // This is to test IE's treatment of not explicitly
+                       // setting a boolean content attribute,
+                       // since its presence should be enough
+                       // https://bugs.jquery.com/ticket/12359
+                       docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
+                               "<select id='" + expando + "-\r\\' msallowcapture=''>" +
+                               "<option selected=''></option></select>";
+
+                       // Support: IE8, Opera 11-12.16
+                       // Nothing should be selected when empty strings follow ^= or $= or *=
+                       // The test attribute must be unknown in Opera but "safe" for WinRT
+                       // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
+                       if ( el.querySelectorAll("[msallowcapture^='']").length ) {
+                               rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+                       }
+
+                       // Support: IE8
+                       // Boolean attributes and "value" are not treated correctly
+                       if ( !el.querySelectorAll("[selected]").length ) {
+                               rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+                       }
+
+                       // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
+                       if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
+                               rbuggyQSA.push("~=");
+                       }
+
+                       // Webkit/Opera - :checked should return selected option elements
+                       // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+                       // IE8 throws error here and will not see later tests
+                       if ( !el.querySelectorAll(":checked").length ) {
+                               rbuggyQSA.push(":checked");
+                       }
+
+                       // Support: Safari 8+, iOS 8+
+                       // https://bugs.webkit.org/show_bug.cgi?id=136851
+                       // In-page `selector#id sibling-combinator selector` fails
+                       if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
+                               rbuggyQSA.push(".#.+[+~]");
+                       }
+               });
+
+               assert(function( el ) {
+                       el.innerHTML = "<a href='' disabled='disabled'></a>" +
+                               "<select disabled='disabled'><option/></select>";
+
+                       // Support: Windows 8 Native Apps
+                       // The type and name attributes are restricted during .innerHTML assignment
+                       var input = document.createElement("input");
+                       input.setAttribute( "type", "hidden" );
+                       el.appendChild( input ).setAttribute( "name", "D" );
+
+                       // Support: IE8
+                       // Enforce case-sensitivity of name attribute
+                       if ( el.querySelectorAll("[name=d]").length ) {
+                               rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
+                       }
+
+                       // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+                       // IE8 throws error here and will not see later tests
+                       if ( el.querySelectorAll(":enabled").length !== 2 ) {
+                               rbuggyQSA.push( ":enabled", ":disabled" );
+                       }
+
+                       // Support: IE9-11+
+                       // IE's :disabled selector does not pick up the children of disabled fieldsets
+                       docElem.appendChild( el ).disabled = true;
+                       if ( el.querySelectorAll(":disabled").length !== 2 ) {
+                               rbuggyQSA.push( ":enabled", ":disabled" );
+                       }
+
+                       // Opera 10-11 does not throw on post-comma invalid pseudos
+                       el.querySelectorAll("*,:x");
+                       rbuggyQSA.push(",.*:");
+               });
+       }
+
+       if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
+               docElem.webkitMatchesSelector ||
+               docElem.mozMatchesSelector ||
+               docElem.oMatchesSelector ||
+               docElem.msMatchesSelector) )) ) {
+
+               assert(function( el ) {
+                       // Check to see if it's possible to do matchesSelector
+                       // on a disconnected node (IE 9)
+                       support.disconnectedMatch = matches.call( el, "*" );
+
+                       // This should fail with an exception
+                       // Gecko does not error, returns false instead
+                       matches.call( el, "[s!='']:x" );
+                       rbuggyMatches.push( "!=", pseudos );
+               });
+       }
+
+       rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
+       rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
+
+       /* Contains
+       ---------------------------------------------------------------------- */
+       hasCompare = rnative.test( docElem.compareDocumentPosition );
+
+       // Element contains another
+       // Purposefully self-exclusive
+       // As in, an element does not contain itself
+       contains = hasCompare || rnative.test( docElem.contains ) ?
+               function( a, b ) {
+                       var adown = a.nodeType === 9 ? a.documentElement : a,
+                               bup = b && b.parentNode;
+                       return a === bup || !!( bup && bup.nodeType === 1 && (
+                               adown.contains ?
+                                       adown.contains( bup ) :
+                                       a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+                       ));
+               } :
+               function( a, b ) {
+                       if ( b ) {
+                               while ( (b = b.parentNode) ) {
+                                       if ( b === a ) {
+                                               return true;
+                                       }
+                               }
+                       }
+                       return false;
+               };
+
+       /* Sorting
+       ---------------------------------------------------------------------- */
+
+       // Document order sorting
+       sortOrder = hasCompare ?
+       function( a, b ) {
+
+               // Flag for duplicate removal
+               if ( a === b ) {
+                       hasDuplicate = true;
+                       return 0;
+               }
+
+               // Sort on method existence if only one input has compareDocumentPosition
+               var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
+               if ( compare ) {
+                       return compare;
+               }
+
+               // Calculate position if both inputs belong to the same document
+               compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
+                       a.compareDocumentPosition( b ) :
+
+                       // Otherwise we know they are disconnected
+                       1;
+
+               // Disconnected nodes
+               if ( compare & 1 ||
+                       (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
+
+                       // Choose the first element that is related to our preferred document
+                       if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
+                               return -1;
+                       }
+                       if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
+                               return 1;
+                       }
+
+                       // Maintain original order
+                       return sortInput ?
+                               ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+                               0;
+               }
+
+               return compare & 4 ? -1 : 1;
+       } :
+       function( a, b ) {
+               // Exit early if the nodes are identical
+               if ( a === b ) {
+                       hasDuplicate = true;
+                       return 0;
+               }
+
+               var cur,
+                       i = 0,
+                       aup = a.parentNode,
+                       bup = b.parentNode,
+                       ap = [ a ],
+                       bp = [ b ];
+
+               // Parentless nodes are either documents or disconnected
+               if ( !aup || !bup ) {
+                       return a === document ? -1 :
+                               b === document ? 1 :
+                               aup ? -1 :
+                               bup ? 1 :
+                               sortInput ?
+                               ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+                               0;
+
+               // If the nodes are siblings, we can do a quick check
+               } else if ( aup === bup ) {
+                       return siblingCheck( a, b );
+               }
+
+               // Otherwise we need full lists of their ancestors for comparison
+               cur = a;
+               while ( (cur = cur.parentNode) ) {
+                       ap.unshift( cur );
+               }
+               cur = b;
+               while ( (cur = cur.parentNode) ) {
+                       bp.unshift( cur );
+               }
+
+               // Walk down the tree looking for a discrepancy
+               while ( ap[i] === bp[i] ) {
+                       i++;
+               }
+
+               return i ?
+                       // Do a sibling check if the nodes have a common ancestor
+                       siblingCheck( ap[i], bp[i] ) :
+
+                       // Otherwise nodes in our document sort first
+                       ap[i] === preferredDoc ? -1 :
+                       bp[i] === preferredDoc ? 1 :
+                       0;
+       };
+
+       return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+       return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+       // Set document vars if needed
+       if ( ( elem.ownerDocument || elem ) !== document ) {
+               setDocument( elem );
+       }
+
+       // Make sure that attribute selectors are quoted
+       expr = expr.replace( rattributeQuotes, "='$1']" );
+
+       if ( support.matchesSelector && documentIsHTML &&
+               !compilerCache[ expr + " " ] &&
+               ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+               ( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
+
+               try {
+                       var ret = matches.call( elem, expr );
+
+                       // IE 9's matchesSelector returns false on disconnected nodes
+                       if ( ret || support.disconnectedMatch ||
+                                       // As well, disconnected nodes are said to be in a document
+                                       // fragment in IE 9
+                                       elem.document && elem.document.nodeType !== 11 ) {
+                               return ret;
+                       }
+               } catch (e) {}
+       }
+
+       return Sizzle( expr, document, null, [ elem ] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+       // Set document vars if needed
+       if ( ( context.ownerDocument || context ) !== document ) {
+               setDocument( context );
+       }
+       return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+       // Set document vars if needed
+       if ( ( elem.ownerDocument || elem ) !== document ) {
+               setDocument( elem );
+       }
+
+       var fn = Expr.attrHandle[ name.toLowerCase() ],
+               // Don't get fooled by Object.prototype properties (jQuery #13807)
+               val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+                       fn( elem, name, !documentIsHTML ) :
+                       undefined;
+
+       return val !== undefined ?
+               val :
+               support.attributes || !documentIsHTML ?
+                       elem.getAttribute( name ) :
+                       (val = elem.getAttributeNode(name)) && val.specified ?
+                               val.value :
+                               null;
+};
+
+Sizzle.escape = function( sel ) {
+       return (sel + "").replace( rcssescape, fcssescape );
+};
+
+Sizzle.error = function( msg ) {
+       throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+       var elem,
+               duplicates = [],
+               j = 0,
+               i = 0;
+
+       // Unless we *know* we can detect duplicates, assume their presence
+       hasDuplicate = !support.detectDuplicates;
+       sortInput = !support.sortStable && results.slice( 0 );
+       results.sort( sortOrder );
+
+       if ( hasDuplicate ) {
+               while ( (elem = results[i++]) ) {
+                       if ( elem === results[ i ] ) {
+                               j = duplicates.push( i );
+                       }
+               }
+               while ( j-- ) {
+                       results.splice( duplicates[ j ], 1 );
+               }
+       }
+
+       // Clear input after sorting to release objects
+       // See https://github.com/jquery/sizzle/pull/225
+       sortInput = null;
+
+       return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+       var node,
+               ret = "",
+               i = 0,
+               nodeType = elem.nodeType;
+
+       if ( !nodeType ) {
+               // If no nodeType, this is expected to be an array
+               while ( (node = elem[i++]) ) {
+                       // Do not traverse comment nodes
+                       ret += getText( node );
+               }
+       } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+               // Use textContent for elements
+               // innerText usage removed for consistency of new lines (jQuery #11153)
+               if ( typeof elem.textContent === "string" ) {
+                       return elem.textContent;
+               } else {
+                       // Traverse its children
+                       for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+                               ret += getText( elem );
+                       }
+               }
+       } else if ( nodeType === 3 || nodeType === 4 ) {
+               return elem.nodeValue;
+       }
+       // Do not include comment or processing instruction nodes
+
+       return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+       // Can be adjusted by the user
+       cacheLength: 50,
+
+       createPseudo: markFunction,
+
+       match: matchExpr,
+
+       attrHandle: {},
+
+       find: {},
+
+       relative: {
+               ">": { dir: "parentNode", first: true },
+               " ": { dir: "parentNode" },
+               "+": { dir: "previousSibling", first: true },
+               "~": { dir: "previousSibling" }
+       },
+
+       preFilter: {
+               "ATTR": function( match ) {
+                       match[1] = match[1].replace( runescape, funescape );
+
+                       // Move the given value to match[3] whether quoted or unquoted
+                       match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
+
+                       if ( match[2] === "~=" ) {
+                               match[3] = " " + match[3] + " ";
+                       }
+
+                       return match.slice( 0, 4 );
+               },
+
+               "CHILD": function( match ) {
+                       /* matches from matchExpr["CHILD"]
+                               1 type (only|nth|...)
+                               2 what (child|of-type)
+                               3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+                               4 xn-component of xn+y argument ([+-]?\d*n|)
+                               5 sign of xn-component
+                               6 x of xn-component
+                               7 sign of y-component
+                               8 y of y-component
+                       */
+                       match[1] = match[1].toLowerCase();
+
+                       if ( match[1].slice( 0, 3 ) === "nth" ) {
+                               // nth-* requires argument
+                               if ( !match[3] ) {
+                                       Sizzle.error( match[0] );
+                               }
+
+                               // numeric x and y parameters for Expr.filter.CHILD
+                               // remember that false/true cast respectively to 0/1
+                               match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+                               match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+                       // other types prohibit arguments
+                       } else if ( match[3] ) {
+                               Sizzle.error( match[0] );
+                       }
+
+                       return match;
+               },
+
+               "PSEUDO": function( match ) {
+                       var excess,
+                               unquoted = !match[6] && match[2];
+
+                       if ( matchExpr["CHILD"].test( match[0] ) ) {
+                               return null;
+                       }
+
+                       // Accept quoted arguments as-is
+                       if ( match[3] ) {
+                               match[2] = match[4] || match[5] || "";
+
+                       // Strip excess characters from unquoted arguments
+                       } else if ( unquoted && rpseudo.test( unquoted ) &&
+                               // Get excess from tokenize (recursively)
+                               (excess = tokenize( unquoted, true )) &&
+                               // advance to the next closing parenthesis
+                               (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+                               // excess is a negative index
+                               match[0] = match[0].slice( 0, excess );
+                               match[2] = unquoted.slice( 0, excess );
+                       }
+
+                       // Return only captures needed by the pseudo filter method (type and argument)
+                       return match.slice( 0, 3 );
+               }
+       },
+
+       filter: {
+
+               "TAG": function( nodeNameSelector ) {
+                       var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+                       return nodeNameSelector === "*" ?
+                               function() { return true; } :
+                               function( elem ) {
+                                       return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+                               };
+               },
+
+               "CLASS": function( className ) {
+                       var pattern = classCache[ className + " " ];
+
+                       return pattern ||
+                               (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+                               classCache( className, function( elem ) {
+                                       return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
+                               });
+               },
+
+               "ATTR": function( name, operator, check ) {
+                       return function( elem ) {
+                               var result = Sizzle.attr( elem, name );
+
+                               if ( result == null ) {
+                                       return operator === "!=";
+                               }
+                               if ( !operator ) {
+                                       return true;
+                               }
+
+                               result += "";
+
+                               return operator === "=" ? result === check :
+                                       operator === "!=" ? result !== check :
+                                       operator === "^=" ? check && result.indexOf( check ) === 0 :
+                                       operator === "*=" ? check && result.indexOf( check ) > -1 :
+                                       operator === "$=" ? check && result.slice( -check.length ) === check :
+                                       operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
+                                       operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+                                       false;
+                       };
+               },
+
+               "CHILD": function( type, what, argument, first, last ) {
+                       var simple = type.slice( 0, 3 ) !== "nth",
+                               forward = type.slice( -4 ) !== "last",
+                               ofType = what === "of-type";
+
+                       return first === 1 && last === 0 ?
+
+                               // Shortcut for :nth-*(n)
+                               function( elem ) {
+                                       return !!elem.parentNode;
+                               } :
+
+                               function( elem, context, xml ) {
+                                       var cache, uniqueCache, outerCache, node, nodeIndex, start,
+                                               dir = simple !== forward ? "nextSibling" : "previousSibling",
+                                               parent = elem.parentNode,
+                                               name = ofType && elem.nodeName.toLowerCase(),
+                                               useCache = !xml && !ofType,
+                                               diff = false;
+
+                                       if ( parent ) {
+
+                                               // :(first|last|only)-(child|of-type)
+                                               if ( simple ) {
+                                                       while ( dir ) {
+                                                               node = elem;
+                                                               while ( (node = node[ dir ]) ) {
+                                                                       if ( ofType ?
+                                                                               node.nodeName.toLowerCase() === name :
+                                                                               node.nodeType === 1 ) {
+
+                                                                               return false;
+                                                                       }
+                                                               }
+                                                               // Reverse direction for :only-* (if we haven't yet done so)
+                                                               start = dir = type === "only" && !start && "nextSibling";
+                                                       }
+                                                       return true;
+                                               }
+
+                                               start = [ forward ? parent.firstChild : parent.lastChild ];
+
+                                               // non-xml :nth-child(...) stores cache data on `parent`
+                                               if ( forward && useCache ) {
+
+                                                       // Seek `elem` from a previously-cached index
+
+                                                       // ...in a gzip-friendly way
+                                                       node = parent;
+                                                       outerCache = node[ expando ] || (node[ expando ] = {});
+
+                                                       // Support: IE <9 only
+                                                       // Defend against cloned attroperties (jQuery gh-1709)
+                                                       uniqueCache = outerCache[ node.uniqueID ] ||
+                                                               (outerCache[ node.uniqueID ] = {});
+
+                                                       cache = uniqueCache[ type ] || [];
+                                                       nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+                                                       diff = nodeIndex && cache[ 2 ];
+                                                       node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+                                                       while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+                                                               // Fallback to seeking `elem` from the start
+                                                               (diff = nodeIndex = 0) || start.pop()) ) {
+
+                                                               // When found, cache indexes on `parent` and break
+                                                               if ( node.nodeType === 1 && ++diff && node === elem ) {
+                                                                       uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
+                                                                       break;
+                                                               }
+                                                       }
+
+                                               } else {
+                                                       // Use previously-cached element index if available
+                                                       if ( useCache ) {
+                                                               // ...in a gzip-friendly way
+                                                               node = elem;
+                                                               outerCache = node[ expando ] || (node[ expando ] = {});
+
+                                                               // Support: IE <9 only
+                                                               // Defend against cloned attroperties (jQuery gh-1709)
+                                                               uniqueCache = outerCache[ node.uniqueID ] ||
+                                                                       (outerCache[ node.uniqueID ] = {});
+
+                                                               cache = uniqueCache[ type ] || [];
+                                                               nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+                                                               diff = nodeIndex;
+                                                       }
+
+                                                       // xml :nth-child(...)
+                                                       // or :nth-last-child(...) or :nth(-last)?-of-type(...)
+                                                       if ( diff === false ) {
+                                                               // Use the same loop as above to seek `elem` from the start
+                                                               while ( (node = ++nodeIndex && node && node[ dir ] ||
+                                                                       (diff = nodeIndex = 0) || start.pop()) ) {
+
+                                                                       if ( ( ofType ?
+                                                                               node.nodeName.toLowerCase() === name :
+                                                                               node.nodeType === 1 ) &&
+                                                                               ++diff ) {
+
+                                                                               // Cache the index of each encountered element
+                                                                               if ( useCache ) {
+                                                                                       outerCache = node[ expando ] || (node[ expando ] = {});
+
+                                                                                       // Support: IE <9 only
+                                                                                       // Defend against cloned attroperties (jQuery gh-1709)
+                                                                                       uniqueCache = outerCache[ node.uniqueID ] ||
+                                                                                               (outerCache[ node.uniqueID ] = {});
+
+                                                                                       uniqueCache[ type ] = [ dirruns, diff ];
+                                                                               }
+
+                                                                               if ( node === elem ) {
+                                                                                       break;
+                                                                               }
+                                                                       }
+                                                               }
+                                                       }
+                                               }
+
+                                               // Incorporate the offset, then check against cycle size
+                                               diff -= last;
+                                               return diff === first || ( diff % first === 0 && diff / first >= 0 );
+                                       }
+                               };
+               },
+
+               "PSEUDO": function( pseudo, argument ) {
+                       // pseudo-class names are case-insensitive
+                       // http://www.w3.org/TR/selectors/#pseudo-classes
+                       // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+                       // Remember that setFilters inherits from pseudos
+                       var args,
+                               fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+                                       Sizzle.error( "unsupported pseudo: " + pseudo );
+
+                       // The user may use createPseudo to indicate that
+                       // arguments are needed to create the filter function
+                       // just as Sizzle does
+                       if ( fn[ expando ] ) {
+                               return fn( argument );
+                       }
+
+                       // But maintain support for old signatures
+                       if ( fn.length > 1 ) {
+                               args = [ pseudo, pseudo, "", argument ];
+                               return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+                                       markFunction(function( seed, matches ) {
+                                               var idx,
+                                                       matched = fn( seed, argument ),
+                                                       i = matched.length;
+                                               while ( i-- ) {
+                                                       idx = indexOf( seed, matched[i] );
+                                                       seed[ idx ] = !( matches[ idx ] = matched[i] );
+                                               }
+                                       }) :
+                                       function( elem ) {
+                                               return fn( elem, 0, args );
+                                       };
+                       }
+
+                       return fn;
+               }
+       },
+
+       pseudos: {
+               // Potentially complex pseudos
+               "not": markFunction(function( selector ) {
+                       // Trim the selector passed to compile
+                       // to avoid treating leading and trailing
+                       // spaces as combinators
+                       var input = [],
+                               results = [],
+                               matcher = compile( selector.replace( rtrim, "$1" ) );
+
+                       return matcher[ expando ] ?
+                               markFunction(function( seed, matches, context, xml ) {
+                                       var elem,
+                                               unmatched = matcher( seed, null, xml, [] ),
+                                               i = seed.length;
+
+                                       // Match elements unmatched by `matcher`
+                                       while ( i-- ) {
+                                               if ( (elem = unmatched[i]) ) {
+                                                       seed[i] = !(matches[i] = elem);
+                                               }
+                                       }
+                               }) :
+                               function( elem, context, xml ) {
+                                       input[0] = elem;
+                                       matcher( input, null, xml, results );
+                                       // Don't keep the element (issue #299)
+                                       input[0] = null;
+                                       return !results.pop();
+                               };
+               }),
+
+               "has": markFunction(function( selector ) {
+                       return function( elem ) {
+                               return Sizzle( selector, elem ).length > 0;
+                       };
+               }),
+
+               "contains": markFunction(function( text ) {
+                       text = text.replace( runescape, funescape );
+                       return function( elem ) {
+                               return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+                       };
+               }),
+
+               // "Whether an element is represented by a :lang() selector
+               // is based solely on the element's language value
+               // being equal to the identifier C,
+               // or beginning with the identifier C immediately followed by "-".
+               // The matching of C against the element's language value is performed case-insensitively.
+               // The identifier C does not have to be a valid language name."
+               // http://www.w3.org/TR/selectors/#lang-pseudo
+               "lang": markFunction( function( lang ) {
+                       // lang value must be a valid identifier
+                       if ( !ridentifier.test(lang || "") ) {
+                               Sizzle.error( "unsupported lang: " + lang );
+                       }
+                       lang = lang.replace( runescape, funescape ).toLowerCase();
+                       return function( elem ) {
+                               var elemLang;
+                               do {
+                                       if ( (elemLang = documentIsHTML ?
+                                               elem.lang :
+                                               elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
+
+                                               elemLang = elemLang.toLowerCase();
+                                               return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+                                       }
+                               } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+                               return false;
+                       };
+               }),
+
+               // Miscellaneous
+               "target": function( elem ) {
+                       var hash = window.location && window.location.hash;
+                       return hash && hash.slice( 1 ) === elem.id;
+               },
+
+               "root": function( elem ) {
+                       return elem === docElem;
+               },
+
+               "focus": function( elem ) {
+                       return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+               },
+
+               // Boolean properties
+               "enabled": createDisabledPseudo( false ),
+               "disabled": createDisabledPseudo( true ),
+
+               "checked": function( elem ) {
+                       // In CSS3, :checked should return both checked and selected elements
+                       // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+                       var nodeName = elem.nodeName.toLowerCase();
+                       return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+               },
+
+               "selected": function( elem ) {
+                       // Accessing this property makes selected-by-default
+                       // options in Safari work properly
+                       if ( elem.parentNode ) {
+                               elem.parentNode.selectedIndex;
+                       }
+
+                       return elem.selected === true;
+               },
+
+               // Contents
+               "empty": function( elem ) {
+                       // http://www.w3.org/TR/selectors/#empty-pseudo
+                       // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
+                       //   but not by others (comment: 8; processing instruction: 7; etc.)
+                       // nodeType < 6 works because attributes (2) do not appear as children
+                       for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+                               if ( elem.nodeType < 6 ) {
+                                       return false;
+                               }
+                       }
+                       return true;
+               },
+
+               "parent": function( elem ) {
+                       return !Expr.pseudos["empty"]( elem );
+               },
+
+               // Element/input types
+               "header": function( elem ) {
+                       return rheader.test( elem.nodeName );
+               },
+
+               "input": function( elem ) {
+                       return rinputs.test( elem.nodeName );
+               },
+
+               "button": function( elem ) {
+                       var name = elem.nodeName.toLowerCase();
+                       return name === "input" && elem.type === "button" || name === "button";
+               },
+
+               "text": function( elem ) {
+                       var attr;
+                       return elem.nodeName.toLowerCase() === "input" &&
+                               elem.type === "text" &&
+
+                               // Support: IE<8
+                               // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
+                               ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
+               },
+
+               // Position-in-collection
+               "first": createPositionalPseudo(function() {
+                       return [ 0 ];
+               }),
+
+               "last": createPositionalPseudo(function( matchIndexes, length ) {
+                       return [ length - 1 ];
+               }),
+
+               "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+                       return [ argument < 0 ? argument + length : argument ];
+               }),
+
+               "even": createPositionalPseudo(function( matchIndexes, length ) {
+                       var i = 0;
+                       for ( ; i < length; i += 2 ) {
+                               matchIndexes.push( i );
+                       }
+                       return matchIndexes;
+               }),
+
+               "odd": createPositionalPseudo(function( matchIndexes, length ) {
+                       var i = 1;
+                       for ( ; i < length; i += 2 ) {
+                               matchIndexes.push( i );
+                       }
+                       return matchIndexes;
+               }),
+
+               "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+                       var i = argument < 0 ? argument + length : argument;
+                       for ( ; --i >= 0; ) {
+                               matchIndexes.push( i );
+                       }
+                       return matchIndexes;
+               }),
+
+               "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+                       var i = argument < 0 ? argument + length : argument;
+                       for ( ; ++i < length; ) {
+                               matchIndexes.push( i );
+                       }
+                       return matchIndexes;
+               })
+       }
+};
+
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+       Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+       Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
+       var matched, match, tokens, type,
+               soFar, groups, preFilters,
+               cached = tokenCache[ selector + " " ];
+
+       if ( cached ) {
+               return parseOnly ? 0 : cached.slice( 0 );
+       }
+
+       soFar = selector;
+       groups = [];
+       preFilters = Expr.preFilter;
+
+       while ( soFar ) {
+
+               // Comma and first run
+               if ( !matched || (match = rcomma.exec( soFar )) ) {
+                       if ( match ) {
+                               // Don't consume trailing commas as valid
+                               soFar = soFar.slice( match[0].length ) || soFar;
+                       }
+                       groups.push( (tokens = []) );
+               }
+
+               matched = false;
+
+               // Combinators
+               if ( (match = rcombinators.exec( soFar )) ) {
+                       matched = match.shift();
+                       tokens.push({
+                               value: matched,
+                               // Cast descendant combinators to space
+                               type: match[0].replace( rtrim, " " )
+                       });
+                       soFar = soFar.slice( matched.length );
+               }
+
+               // Filters
+               for ( type in Expr.filter ) {
+                       if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+                               (match = preFilters[ type ]( match ))) ) {
+                               matched = match.shift();
+                               tokens.push({
+                                       value: matched,
+                                       type: type,
+                                       matches: match
+                               });
+                               soFar = soFar.slice( matched.length );
+                       }
+               }
+
+               if ( !matched ) {
+                       break;
+               }
+       }
+
+       // Return the length of the invalid excess
+       // if we're just parsing
+       // Otherwise, throw an error or return tokens
+       return parseOnly ?
+               soFar.length :
+               soFar ?
+                       Sizzle.error( selector ) :
+                       // Cache the tokens
+                       tokenCache( selector, groups ).slice( 0 );
+};
+
+function toSelector( tokens ) {
+       var i = 0,
+               len = tokens.length,
+               selector = "";
+       for ( ; i < len; i++ ) {
+               selector += tokens[i].value;
+       }
+       return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+       var dir = combinator.dir,
+               skip = combinator.next,
+               key = skip || dir,
+               checkNonElements = base && key === "parentNode",
+               doneName = done++;
+
+       return combinator.first ?
+               // Check against closest ancestor/preceding element
+               function( elem, context, xml ) {
+                       while ( (elem = elem[ dir ]) ) {
+                               if ( elem.nodeType === 1 || checkNonElements ) {
+                                       return matcher( elem, context, xml );
+                               }
+                       }
+                       return false;
+               } :
+
+               // Check against all ancestor/preceding elements
+               function( elem, context, xml ) {
+                       var oldCache, uniqueCache, outerCache,
+                               newCache = [ dirruns, doneName ];
+
+                       // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
+                       if ( xml ) {
+                               while ( (elem = elem[ dir ]) ) {
+                                       if ( elem.nodeType === 1 || checkNonElements ) {
+                                               if ( matcher( elem, context, xml ) ) {
+                                                       return true;
+                                               }
+                                       }
+                               }
+                       } else {
+                               while ( (elem = elem[ dir ]) ) {
+                                       if ( elem.nodeType === 1 || checkNonElements ) {
+                                               outerCache = elem[ expando ] || (elem[ expando ] = {});
+
+                                               // Support: IE <9 only
+                                               // Defend against cloned attroperties (jQuery gh-1709)
+                                               uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
+
+                                               if ( skip && skip === elem.nodeName.toLowerCase() ) {
+                                                       elem = elem[ dir ] || elem;
+                                               } else if ( (oldCache = uniqueCache[ key ]) &&
+                                                       oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
+
+                                                       // Assign to newCache so results back-propagate to previous elements
+                                                       return (newCache[ 2 ] = oldCache[ 2 ]);
+                                               } else {
+                                                       // Reuse newcache so results back-propagate to previous elements
+                                                       uniqueCache[ key ] = newCache;
+
+                                                       // A match means we're done; a fail means we have to keep checking
+                                                       if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
+                                                               return true;
+                                                       }
+                                               }
+                                       }
+                               }
+                       }
+                       return false;
+               };
+}
+
+function elementMatcher( matchers ) {
+       return matchers.length > 1 ?
+               function( elem, context, xml ) {
+                       var i = matchers.length;
+                       while ( i-- ) {
+                               if ( !matchers[i]( elem, context, xml ) ) {
+                                       return false;
+                               }
+                       }
+                       return true;
+               } :
+               matchers[0];
+}
+
+function multipleContexts( selector, contexts, results ) {
+       var i = 0,
+               len = contexts.length;
+       for ( ; i < len; i++ ) {
+               Sizzle( selector, contexts[i], results );
+       }
+       return results;
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+       var elem,
+               newUnmatched = [],
+               i = 0,
+               len = unmatched.length,
+               mapped = map != null;
+
+       for ( ; i < len; i++ ) {
+               if ( (elem = unmatched[i]) ) {
+                       if ( !filter || filter( elem, context, xml ) ) {
+                               newUnmatched.push( elem );
+                               if ( mapped ) {
+                                       map.push( i );
+                               }
+                       }
+               }
+       }
+
+       return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+       if ( postFilter && !postFilter[ expando ] ) {
+               postFilter = setMatcher( postFilter );
+       }
+       if ( postFinder && !postFinder[ expando ] ) {
+               postFinder = setMatcher( postFinder, postSelector );
+       }
+       return markFunction(function( seed, results, context, xml ) {
+               var temp, i, elem,
+                       preMap = [],
+                       postMap = [],
+                       preexisting = results.length,
+
+                       // Get initial elements from seed or context
+                       elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+                       // Prefilter to get matcher input, preserving a map for seed-results synchronization
+                       matcherIn = preFilter && ( seed || !selector ) ?
+                               condense( elems, preMap, preFilter, context, xml ) :
+                               elems,
+
+                       matcherOut = matcher ?
+                               // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+                               postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+                                       // ...intermediate processing is necessary
+                                       [] :
+
+                                       // ...otherwise use results directly
+                                       results :
+                               matcherIn;
+
+               // Find primary matches
+               if ( matcher ) {
+                       matcher( matcherIn, matcherOut, context, xml );
+               }
+
+               // Apply postFilter
+               if ( postFilter ) {
+                       temp = condense( matcherOut, postMap );
+                       postFilter( temp, [], context, xml );
+
+                       // Un-match failing elements by moving them back to matcherIn
+                       i = temp.length;
+                       while ( i-- ) {
+                               if ( (elem = temp[i]) ) {
+                                       matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+                               }
+                       }
+               }
+
+               if ( seed ) {
+                       if ( postFinder || preFilter ) {
+                               if ( postFinder ) {
+                                       // Get the final matcherOut by condensing this intermediate into postFinder contexts
+                                       temp = [];
+                                       i = matcherOut.length;
+                                       while ( i-- ) {
+                                               if ( (elem = matcherOut[i]) ) {
+                                                       // Restore matcherIn since elem is not yet a final match
+                                                       temp.push( (matcherIn[i] = elem) );
+                                               }
+                                       }
+                                       postFinder( null, (matcherOut = []), temp, xml );
+                               }
+
+                               // Move matched elements from seed to results to keep them synchronized
+                               i = matcherOut.length;
+                               while ( i-- ) {
+                                       if ( (elem = matcherOut[i]) &&
+                                               (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
+
+                                               seed[temp] = !(results[temp] = elem);
+                                       }
+                               }
+                       }
+
+               // Add elements to results, through postFinder if defined
+               } else {
+                       matcherOut = condense(
+                               matcherOut === results ?
+                                       matcherOut.splice( preexisting, matcherOut.length ) :
+                                       matcherOut
+                       );
+                       if ( postFinder ) {
+                               postFinder( null, results, matcherOut, xml );
+                       } else {
+                               push.apply( results, matcherOut );
+                       }
+               }
+       });
+}
+
+function matcherFromTokens( tokens ) {
+       var checkContext, matcher, j,
+               len = tokens.length,
+               leadingRelative = Expr.relative[ tokens[0].type ],
+               implicitRelative = leadingRelative || Expr.relative[" "],
+               i = leadingRelative ? 1 : 0,
+
+               // The foundational matcher ensures that elements are reachable from top-level context(s)
+               matchContext = addCombinator( function( elem ) {
+                       return elem === checkContext;
+               }, implicitRelative, true ),
+               matchAnyContext = addCombinator( function( elem ) {
+                       return indexOf( checkContext, elem ) > -1;
+               }, implicitRelative, true ),
+               matchers = [ function( elem, context, xml ) {
+                       var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+                               (checkContext = context).nodeType ?
+                                       matchContext( elem, context, xml ) :
+                                       matchAnyContext( elem, context, xml ) );
+                       // Avoid hanging onto element (issue #299)
+                       checkContext = null;
+                       return ret;
+               } ];
+
+       for ( ; i < len; i++ ) {
+               if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+                       matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+               } else {
+                       matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+                       // Return special upon seeing a positional matcher
+                       if ( matcher[ expando ] ) {
+                               // Find the next relative operator (if any) for proper handling
+                               j = ++i;
+                               for ( ; j < len; j++ ) {
+                                       if ( Expr.relative[ tokens[j].type ] ) {
+                                               break;
+                                       }
+                               }
+                               return setMatcher(
+                                       i > 1 && elementMatcher( matchers ),
+                                       i > 1 && toSelector(
+                                               // If the preceding token was a descendant combinator, insert an implicit any-element `*`
+                                               tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
+                                       ).replace( rtrim, "$1" ),
+                                       matcher,
+                                       i < j && matcherFromTokens( tokens.slice( i, j ) ),
+                                       j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+                                       j < len && toSelector( tokens )
+                               );
+                       }
+                       matchers.push( matcher );
+               }
+       }
+
+       return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+       var bySet = setMatchers.length > 0,
+               byElement = elementMatchers.length > 0,
+               superMatcher = function( seed, context, xml, results, outermost ) {
+                       var elem, j, matcher,
+                               matchedCount = 0,
+                               i = "0",
+                               unmatched = seed && [],
+                               setMatched = [],
+                               contextBackup = outermostContext,
+                               // We must always have either seed elements or outermost context
+                               elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
+                               // Use integer dirruns iff this is the outermost matcher
+                               dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
+                               len = elems.length;
+
+                       if ( outermost ) {
+                               outermostContext = context === document || context || outermost;
+                       }
+
+                       // Add elements passing elementMatchers directly to results
+                       // Support: IE<9, Safari
+                       // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
+                       for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
+                               if ( byElement && elem ) {
+                                       j = 0;
+                                       if ( !context && elem.ownerDocument !== document ) {
+                                               setDocument( elem );
+                                               xml = !documentIsHTML;
+                                       }
+                                       while ( (matcher = elementMatchers[j++]) ) {
+                                               if ( matcher( elem, context || document, xml) ) {
+                                                       results.push( elem );
+                                                       break;
+                                               }
+                                       }
+                                       if ( outermost ) {
+                                               dirruns = dirrunsUnique;
+                                       }
+                               }
+
+                               // Track unmatched elements for set filters
+                               if ( bySet ) {
+                                       // They will have gone through all possible matchers
+                                       if ( (elem = !matcher && elem) ) {
+                                               matchedCount--;
+                                       }
+
+                                       // Lengthen the array for every element, matched or not
+                                       if ( seed ) {
+                                               unmatched.push( elem );
+                                       }
+                               }
+                       }
+
+                       // `i` is now the count of elements visited above, and adding it to `matchedCount`
+                       // makes the latter nonnegative.
+                       matchedCount += i;
+
+                       // Apply set filters to unmatched elements
+                       // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
+                       // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
+                       // no element matchers and no seed.
+                       // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
+                       // case, which will result in a "00" `matchedCount` that differs from `i` but is also
+                       // numerically zero.
+                       if ( bySet && i !== matchedCount ) {
+                               j = 0;
+                               while ( (matcher = setMatchers[j++]) ) {
+                                       matcher( unmatched, setMatched, context, xml );
+                               }
+
+                               if ( seed ) {
+                                       // Reintegrate element matches to eliminate the need for sorting
+                                       if ( matchedCount > 0 ) {
+                                               while ( i-- ) {
+                                                       if ( !(unmatched[i] || setMatched[i]) ) {
+                                                               setMatched[i] = pop.call( results );
+                                                       }
+                                               }
+                                       }
+
+                                       // Discard index placeholder values to get only actual matches
+                                       setMatched = condense( setMatched );
+                               }
+
+                               // Add matches to results
+                               push.apply( results, setMatched );
+
+                               // Seedless set matches succeeding multiple successful matchers stipulate sorting
+                               if ( outermost && !seed && setMatched.length > 0 &&
+                                       ( matchedCount + setMatchers.length ) > 1 ) {
+
+                                       Sizzle.uniqueSort( results );
+                               }
+                       }
+
+                       // Override manipulation of globals by nested matchers
+                       if ( outermost ) {
+                               dirruns = dirrunsUnique;
+                               outermostContext = contextBackup;
+                       }
+
+                       return unmatched;
+               };
+
+       return bySet ?
+               markFunction( superMatcher ) :
+               superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
+       var i,
+               setMatchers = [],
+               elementMatchers = [],
+               cached = compilerCache[ selector + " " ];
+
+       if ( !cached ) {
+               // Generate a function of recursive functions that can be used to check each element
+               if ( !match ) {
+                       match = tokenize( selector );
+               }
+               i = match.length;
+               while ( i-- ) {
+                       cached = matcherFromTokens( match[i] );
+                       if ( cached[ expando ] ) {
+                               setMatchers.push( cached );
+                       } else {
+                               elementMatchers.push( cached );
+                       }
+               }
+
+               // Cache the compiled function
+               cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+
+               // Save selector and tokenization
+               cached.selector = selector;
+       }
+       return cached;
+};
+
+/**
+ * A low-level selection function that works with Sizzle's compiled
+ *  selector functions
+ * @param {String|Function} selector A selector or a pre-compiled
+ *  selector function built with Sizzle.compile
+ * @param {Element} context
+ * @param {Array} [results]
+ * @param {Array} [seed] A set of elements to match against
+ */
+select = Sizzle.select = function( selector, context, results, seed ) {
+       var i, tokens, token, type, find,
+               compiled = typeof selector === "function" && selector,
+               match = !seed && tokenize( (selector = compiled.selector || selector) );
+
+       results = results || [];
+
+       // Try to minimize operations if there is only one selector in the list and no seed
+       // (the latter of which guarantees us context)
+       if ( match.length === 1 ) {
+
+               // Reduce context if the leading compound selector is an ID
+               tokens = match[0] = match[0].slice( 0 );
+               if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+                               context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
+
+                       context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
+                       if ( !context ) {
+                               return results;
+
+                       // Precompiled matchers will still verify ancestry, so step up a level
+                       } else if ( compiled ) {
+                               context = context.parentNode;
+                       }
+
+                       selector = selector.slice( tokens.shift().value.length );
+               }
+
+               // Fetch a seed set for right-to-left matching
+               i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
+               while ( i-- ) {
+                       token = tokens[i];
+
+                       // Abort if we hit a combinator
+                       if ( Expr.relative[ (type = token.type) ] ) {
+                               break;
+                       }
+                       if ( (find = Expr.find[ type ]) ) {
+                               // Search, expanding context for leading sibling combinators
+                               if ( (seed = find(
+                                       token.matches[0].replace( runescape, funescape ),
+                                       rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
+                               )) ) {
+
+                                       // If seed is empty or no tokens remain, we can return early
+                                       tokens.splice( i, 1 );
+                                       selector = seed.length && toSelector( tokens );
+                                       if ( !selector ) {
+                                               push.apply( results, seed );
+                                               return results;
+                                       }
+
+                                       break;
+                               }
+                       }
+               }
+       }
+
+       // Compile and execute a filtering function if one is not provided
+       // Provide `match` to avoid retokenization if we modified the selector above
+       ( compiled || compile( selector, match ) )(
+               seed,
+               context,
+               !documentIsHTML,
+               results,
+               !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
+       );
+       return results;
+};
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
+
+// Support: Chrome 14-35+
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = !!hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert(function( el ) {
+       // Should return 1, but returns 4 (following)
+       return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
+});
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert(function( el ) {
+       el.innerHTML = "<a href='#'></a>";
+       return el.firstChild.getAttribute("href") === "#" ;
+}) ) {
+       addHandle( "type|href|height|width", function( elem, name, isXML ) {
+               if ( !isXML ) {
+                       return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+               }
+       });
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert(function( el ) {
+       el.innerHTML = "<input/>";
+       el.firstChild.setAttribute( "value", "" );
+       return el.firstChild.getAttribute( "value" ) === "";
+}) ) {
+       addHandle( "value", function( elem, name, isXML ) {
+               if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+                       return elem.defaultValue;
+               }
+       });
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert(function( el ) {
+       return el.getAttribute("disabled") == null;
+}) ) {
+       addHandle( booleans, function( elem, name, isXML ) {
+               var val;
+               if ( !isXML ) {
+                       return elem[ name ] === true ? name.toLowerCase() :
+                                       (val = elem.getAttributeNode( name )) && val.specified ?
+                                       val.value :
+                               null;
+               }
+       });
+}
+
+return Sizzle;
+
+})( window );
+
+
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+
+// Deprecated
+jQuery.expr[ ":" ] = jQuery.expr.pseudos;
+jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+jQuery.escapeSelector = Sizzle.escape;
+
+
+
+
+var dir = function( elem, dir, until ) {
+       var matched = [],
+               truncate = until !== undefined;
+
+       while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+               if ( elem.nodeType === 1 ) {
+                       if ( truncate && jQuery( elem ).is( until ) ) {
+                               break;
+                       }
+                       matched.push( elem );
+               }
+       }
+       return matched;
+};
+
+
+var siblings = function( n, elem ) {
+       var matched = [];
+
+       for ( ; n; n = n.nextSibling ) {
+               if ( n.nodeType === 1 && n !== elem ) {
+                       matched.push( n );
+               }
+       }
+
+       return matched;
+};
+
+
+var rneedsContext = jQuery.expr.match.needsContext;
+
+
+
+function nodeName( elem, name ) {
+
+  return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+};
+var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
+
+
+
+var risSimple = /^.[^:#\[\.,]*$/;
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+       if ( jQuery.isFunction( qualifier ) ) {
+               return jQuery.grep( elements, function( elem, i ) {
+                       return !!qualifier.call( elem, i, elem ) !== not;
+               } );
+       }
+
+       // Single element
+       if ( qualifier.nodeType ) {
+               return jQuery.grep( elements, function( elem ) {
+                       return ( elem === qualifier ) !== not;
+               } );
+       }
+
+       // Arraylike of elements (jQuery, arguments, Array)
+       if ( typeof qualifier !== "string" ) {
+               return jQuery.grep( elements, function( elem ) {
+                       return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
+               } );
+       }
+
+       // Simple selector that can be filtered directly, removing non-Elements
+       if ( risSimple.test( qualifier ) ) {
+               return jQuery.filter( qualifier, elements, not );
+       }
+
+       // Complex selector, compare the two sets, removing non-Elements
+       qualifier = jQuery.filter( qualifier, elements );
+       return jQuery.grep( elements, function( elem ) {
+               return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
+       } );
+}
+
+jQuery.filter = function( expr, elems, not ) {
+       var elem = elems[ 0 ];
+
+       if ( not ) {
+               expr = ":not(" + expr + ")";
+       }
+
+       if ( elems.length === 1 && elem.nodeType === 1 ) {
+               return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
+       }
+
+       return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+               return elem.nodeType === 1;
+       } ) );
+};
+
+jQuery.fn.extend( {
+       find: function( selector ) {
+               var i, ret,
+                       len = this.length,
+                       self = this;
+
+               if ( typeof selector !== "string" ) {
+                       return this.pushStack( jQuery( selector ).filter( function() {
+                               for ( i = 0; i < len; i++ ) {
+                                       if ( jQuery.contains( self[ i ], this ) ) {
+                                               return true;
+                                       }
+                               }
+                       } ) );
+               }
+
+               ret = this.pushStack( [] );
+
+               for ( i = 0; i < len; i++ ) {
+                       jQuery.find( selector, self[ i ], ret );
+               }
+
+               return len > 1 ? jQuery.uniqueSort( ret ) : ret;
+       },
+       filter: function( selector ) {
+               return this.pushStack( winnow( this, selector || [], false ) );
+       },
+       not: function( selector ) {
+               return this.pushStack( winnow( this, selector || [], true ) );
+       },
+       is: function( selector ) {
+               return !!winnow(
+                       this,
+
+                       // If this is a positional/relative selector, check membership in the returned set
+                       // so $("p:first").is("p:last") won't return true for a doc with two "p".
+                       typeof selector === "string" && rneedsContext.test( selector ) ?
+                               jQuery( selector ) :
+                               selector || [],
+                       false
+               ).length;
+       }
+} );
+
+
+// Initialize a jQuery object
+
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+       // A simple way to check for HTML strings
+       // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+       // Strict HTML recognition (#11290: must start with <)
+       // Shortcut simple #id case for speed
+       rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
+
+       init = jQuery.fn.init = function( selector, context, root ) {
+               var match, elem;
+
+               // HANDLE: $(""), $(null), $(undefined), $(false)
+               if ( !selector ) {
+                       return this;
+               }
+
+               // Method init() accepts an alternate rootjQuery
+               // so migrate can support jQuery.sub (gh-2101)
+               root = root || rootjQuery;
+
+               // Handle HTML strings
+               if ( typeof selector === "string" ) {
+                       if ( selector[ 0 ] === "<" &&
+                               selector[ selector.length - 1 ] === ">" &&
+                               selector.length >= 3 ) {
+
+                               // Assume that strings that start and end with <> are HTML and skip the regex check
+                               match = [ null, selector, null ];
+
+                       } else {
+                               match = rquickExpr.exec( selector );
+                       }
+
+                       // Match html or make sure no context is specified for #id
+                       if ( match && ( match[ 1 ] || !context ) ) {
+
+                               // HANDLE: $(html) -> $(array)
+                               if ( match[ 1 ] ) {
+                                       context = context instanceof jQuery ? context[ 0 ] : context;
+
+                                       // Option to run scripts is true for back-compat
+                                       // Intentionally let the error be thrown if parseHTML is not present
+                                       jQuery.merge( this, jQuery.parseHTML(
+                                               match[ 1 ],
+                                               context && context.nodeType ? context.ownerDocument || context : document,
+                                               true
+                                       ) );
+
+                                       // HANDLE: $(html, props)
+                                       if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
+                                               for ( match in context ) {
+
+                                                       // Properties of context are called as methods if possible
+                                                       if ( jQuery.isFunction( this[ match ] ) ) {
+                                                               this[ match ]( context[ match ] );
+
+                                                       // ...and otherwise set as attributes
+                                                       } else {
+                                                               this.attr( match, context[ match ] );
+                                                       }
+                                               }
+                                       }
+
+                                       return this;
+
+                               // HANDLE: $(#id)
+                               } else {
+                                       elem = document.getElementById( match[ 2 ] );
+
+                                       if ( elem ) {
+
+                                               // Inject the element directly into the jQuery object
+                                               this[ 0 ] = elem;
+                                               this.length = 1;
+                                       }
+                                       return this;
+                               }
+
+                       // HANDLE: $(expr, $(...))
+                       } else if ( !context || context.jquery ) {
+                               return ( context || root ).find( selector );
+
+                       // HANDLE: $(expr, context)
+                       // (which is just equivalent to: $(context).find(expr)
+                       } else {
+                               return this.constructor( context ).find( selector );
+                       }
+
+               // HANDLE: $(DOMElement)
+               } else if ( selector.nodeType ) {
+                       this[ 0 ] = selector;
+                       this.length = 1;
+                       return this;
+
+               // HANDLE: $(function)
+               // Shortcut for document ready
+               } else if ( jQuery.isFunction( selector ) ) {
+                       return root.ready !== undefined ?
+                               root.ready( selector ) :
+
+                               // Execute immediately if ready is not present
+                               selector( jQuery );
+               }
+
+               return jQuery.makeArray( selector, this );
+       };
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+
+var rparentsprev = /^(?:parents|prev(?:Until|All))/,
+
+       // Methods guaranteed to produce a unique set when starting from a unique set
+       guaranteedUnique = {
+               children: true,
+               contents: true,
+               next: true,
+               prev: true
+       };
+
+jQuery.fn.extend( {
+       has: function( target ) {
+               var targets = jQuery( target, this ),
+                       l = targets.length;
+
+               return this.filter( function() {
+                       var i = 0;
+                       for ( ; i < l; i++ ) {
+                               if ( jQuery.contains( this, targets[ i ] ) ) {
+                                       return true;
+                               }
+                       }
+               } );
+       },
+
+       closest: function( selectors, context ) {
+               var cur,
+                       i = 0,
+                       l = this.length,
+                       matched = [],
+                       targets = typeof selectors !== "string" && jQuery( selectors );
+
+               // Positional selectors never match, since there's no _selection_ context
+               if ( !rneedsContext.test( selectors ) ) {
+                       for ( ; i < l; i++ ) {
+                               for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
+
+                                       // Always skip document fragments
+                                       if ( cur.nodeType < 11 && ( targets ?
+                                               targets.index( cur ) > -1 :
+
+                                               // Don't pass non-elements to Sizzle
+                                               cur.nodeType === 1 &&
+                                                       jQuery.find.matchesSelector( cur, selectors ) ) ) {
+
+                                               matched.push( cur );
+                                               break;
+                                       }
+                               }
+                       }
+               }
+
+               return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
+       },
+
+       // Determine the position of an element within the set
+       index: function( elem ) {
+
+               // No argument, return index in parent
+               if ( !elem ) {
+                       return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
+               }
+
+               // Index in selector
+               if ( typeof elem === "string" ) {
+                       return indexOf.call( jQuery( elem ), this[ 0 ] );
+               }
+
+               // Locate the position of the desired element
+               return indexOf.call( this,
+
+                       // If it receives a jQuery object, the first element is used
+                       elem.jquery ? elem[ 0 ] : elem
+               );
+       },
+
+       add: function( selector, context ) {
+               return this.pushStack(
+                       jQuery.uniqueSort(
+                               jQuery.merge( this.get(), jQuery( selector, context ) )
+                       )
+               );
+       },
+
+       addBack: function( selector ) {
+               return this.add( selector == null ?
+                       this.prevObject : this.prevObject.filter( selector )
+               );
+       }
+} );
+
+function sibling( cur, dir ) {
+       while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
+       return cur;
+}
+
+jQuery.each( {
+       parent: function( elem ) {
+               var parent = elem.parentNode;
+               return parent && parent.nodeType !== 11 ? parent : null;
+       },
+       parents: function( elem ) {
+               return dir( elem, "parentNode" );
+       },
+       parentsUntil: function( elem, i, until ) {
+               return dir( elem, "parentNode", until );
+       },
+       next: function( elem ) {
+               return sibling( elem, "nextSibling" );
+       },
+       prev: function( elem ) {
+               return sibling( elem, "previousSibling" );
+       },
+       nextAll: function( elem ) {
+               return dir( elem, "nextSibling" );
+       },
+       prevAll: function( elem ) {
+               return dir( elem, "previousSibling" );
+       },
+       nextUntil: function( elem, i, until ) {
+               return dir( elem, "nextSibling", until );
+       },
+       prevUntil: function( elem, i, until ) {
+               return dir( elem, "previousSibling", until );
+       },
+       siblings: function( elem ) {
+               return siblings( ( elem.parentNode || {} ).firstChild, elem );
+       },
+       children: function( elem ) {
+               return siblings( elem.firstChild );
+       },
+       contents: function( elem ) {
+        if ( nodeName( elem, "iframe" ) ) {
+            return elem.contentDocument;
+        }
+
+        // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+        // Treat the template element as a regular one in browsers that
+        // don't support it.
+        if ( nodeName( elem, "template" ) ) {
+            elem = elem.content || elem;
+        }
+
+        return jQuery.merge( [], elem.childNodes );
+       }
+}, function( name, fn ) {
+       jQuery.fn[ name ] = function( until, selector ) {
+               var matched = jQuery.map( this, fn, until );
+
+               if ( name.slice( -5 ) !== "Until" ) {
+                       selector = until;
+               }
+
+               if ( selector && typeof selector === "string" ) {
+                       matched = jQuery.filter( selector, matched );
+               }
+
+               if ( this.length > 1 ) {
+
+                       // Remove duplicates
+                       if ( !guaranteedUnique[ name ] ) {
+                               jQuery.uniqueSort( matched );
+                       }
+
+                       // Reverse order for parents* and prev-derivatives
+                       if ( rparentsprev.test( name ) ) {
+                               matched.reverse();
+                       }
+               }
+
+               return this.pushStack( matched );
+       };
+} );
+var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
+
+
+
+// Convert String-formatted options into Object-formatted ones
+function createOptions( options ) {
+       var object = {};
+       jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
+               object[ flag ] = true;
+       } );
+       return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ *     options: an optional list of space-separated options that will change how
+ *                     the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ *     once:                   will ensure the callback list can only be fired once (like a Deferred)
+ *
+ *     memory:                 will keep track of previous values and will call any callback added
+ *                                     after the list has been fired right away with the latest "memorized"
+ *                                     values (like a Deferred)
+ *
+ *     unique:                 will ensure a callback can only be added once (no duplicate in the list)
+ *
+ *     stopOnFalse:    interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+       // Convert options from String-formatted to Object-formatted if needed
+       // (we check in cache first)
+       options = typeof options === "string" ?
+               createOptions( options ) :
+               jQuery.extend( {}, options );
+
+       var // Flag to know if list is currently firing
+               firing,
+
+               // Last fire value for non-forgettable lists
+               memory,
+
+               // Flag to know if list was already fired
+               fired,
+
+               // Flag to prevent firing
+               locked,
+
+               // Actual callback list
+               list = [],
+
+               // Queue of execution data for repeatable lists
+               queue = [],
+
+               // Index of currently firing callback (modified by add/remove as needed)
+               firingIndex = -1,
+
+               // Fire callbacks
+               fire = function() {
+
+                       // Enforce single-firing
+                       locked = locked || options.once;
+
+                       // Execute callbacks for all pending executions,
+                       // respecting firingIndex overrides and runtime changes
+                       fired = firing = true;
+                       for ( ; queue.length; firingIndex = -1 ) {
+                               memory = queue.shift();
+                               while ( ++firingIndex < list.length ) {
+
+                                       // Run callback and check for early termination
+                                       if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
+                                               options.stopOnFalse ) {
+
+                                               // Jump to end and forget the data so .add doesn't re-fire
+                                               firingIndex = list.length;
+                                               memory = false;
+                                       }
+                               }
+                       }
+
+                       // Forget the data if we're done with it
+                       if ( !options.memory ) {
+                               memory = false;
+                       }
+
+                       firing = false;
+
+                       // Clean up if we're done firing for good
+                       if ( locked ) {
+
+                               // Keep an empty list if we have data for future add calls
+                               if ( memory ) {
+                                       list = [];
+
+                               // Otherwise, this object is spent
+                               } else {
+                                       list = "";
+                               }
+                       }
+               },
+
+               // Actual Callbacks object
+               self = {
+
+                       // Add a callback or a collection of callbacks to the list
+                       add: function() {
+                               if ( list ) {
+
+                                       // If we have memory from a past run, we should fire after adding
+                                       if ( memory && !firing ) {
+                                               firingIndex = list.length - 1;
+                                               queue.push( memory );
+                                       }
+
+                                       ( function add( args ) {
+                                               jQuery.each( args, function( _, arg ) {
+                                                       if ( jQuery.isFunction( arg ) ) {
+                                                               if ( !options.unique || !self.has( arg ) ) {
+                                                                       list.push( arg );
+                                                               }
+                                                       } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {
+
+                                                               // Inspect recursively
+                                                               add( arg );
+                                                       }
+                                               } );
+                                       } )( arguments );
+
+                                       if ( memory && !firing ) {
+                                               fire();
+                                       }
+                               }
+                               return this;
+                       },
+
+                       // Remove a callback from the list
+                       remove: function() {
+                               jQuery.each( arguments, function( _, arg ) {
+                                       var index;
+                                       while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+                                               list.splice( index, 1 );
+
+                                               // Handle firing indexes
+                                               if ( index <= firingIndex ) {
+                                                       firingIndex--;
+                                               }
+                                       }
+                               } );
+                               return this;
+                       },
+
+                       // Check if a given callback is in the list.
+                       // If no argument is given, return whether or not list has callbacks attached.
+                       has: function( fn ) {
+                               return fn ?
+                                       jQuery.inArray( fn, list ) > -1 :
+                                       list.length > 0;
+                       },
+
+                       // Remove all callbacks from the list
+                       empty: function() {
+                               if ( list ) {
+                                       list = [];
+                               }
+                               return this;
+                       },
+
+                       // Disable .fire and .add
+                       // Abort any current/pending executions
+                       // Clear all callbacks and values
+                       disable: function() {
+                               locked = queue = [];
+                               list = memory = "";
+                               return this;
+                       },
+                       disabled: function() {
+                               return !list;
+                       },
+
+                       // Disable .fire
+                       // Also disable .add unless we have memory (since it would have no effect)
+                       // Abort any pending executions
+                       lock: function() {
+                               locked = queue = [];
+                               if ( !memory && !firing ) {
+                                       list = memory = "";
+                               }
+                               return this;
+                       },
+                       locked: function() {
+                               return !!locked;
+                       },
+
+                       // Call all callbacks with the given context and arguments
+                       fireWith: function( context, args ) {
+                               if ( !locked ) {
+                                       args = args || [];
+                                       args = [ context, args.slice ? args.slice() : args ];
+                                       queue.push( args );
+                                       if ( !firing ) {
+                                               fire();
+                                       }
+                               }
+                               return this;
+                       },
+
+                       // Call all the callbacks with the given arguments
+                       fire: function() {
+                               self.fireWith( this, arguments );
+                               return this;
+                       },
+
+                       // To know if the callbacks have already been called at least once
+                       fired: function() {
+                               return !!fired;
+                       }
+               };
+
+       return self;
+};
+
+
+function Identity( v ) {
+       return v;
+}
+function Thrower( ex ) {
+       throw ex;
+}
+
+function adoptValue( value, resolve, reject, noValue ) {
+       var method;
+
+       try {
+
+               // Check for promise aspect first to privilege synchronous behavior
+               if ( value && jQuery.isFunction( ( method = value.promise ) ) ) {
+                       method.call( value ).done( resolve ).fail( reject );
+
+               // Other thenables
+               } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {
+                       method.call( value, resolve, reject );
+
+               // Other non-thenables
+               } else {
+
+                       // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+                       // * false: [ value ].slice( 0 ) => resolve( value )
+                       // * true: [ value ].slice( 1 ) => resolve()
+                       resolve.apply( undefined, [ value ].slice( noValue ) );
+               }
+
+       // For Promises/A+, convert exceptions into rejections
+       // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
+       // Deferred#then to conditionally suppress rejection.
+       } catch ( value ) {
+
+               // Support: Android 4.0 only
+               // Strict mode functions invoked without .call/.apply get global-object context
+               reject.apply( undefined, [ value ] );
+       }
+}
+
+jQuery.extend( {
+
+       Deferred: function( func ) {
+               var tuples = [
+
+                               // action, add listener, callbacks,
+                               // ... .then handlers, argument index, [final state]
+                               [ "notify", "progress", jQuery.Callbacks( "memory" ),
+                                       jQuery.Callbacks( "memory" ), 2 ],
+                               [ "resolve", "done", jQuery.Callbacks( "once memory" ),
+                                       jQuery.Callbacks( "once memory" ), 0, "resolved" ],
+                               [ "reject", "fail", jQuery.Callbacks( "once memory" ),
+                                       jQuery.Callbacks( "once memory" ), 1, "rejected" ]
+                       ],
+                       state = "pending",
+                       promise = {
+                               state: function() {
+                                       return state;
+                               },
+                               always: function() {
+                                       deferred.done( arguments ).fail( arguments );
+                                       return this;
+                               },
+                               "catch": function( fn ) {
+                                       return promise.then( null, fn );
+                               },
+
+                               // Keep pipe for back-compat
+                               pipe: function( /* fnDone, fnFail, fnProgress */ ) {
+                                       var fns = arguments;
+
+                                       return jQuery.Deferred( function( newDefer ) {
+                                               jQuery.each( tuples, function( i, tuple ) {
+
+                                                       // Map tuples (progress, done, fail) to arguments (done, fail, progress)
+                                                       var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
+
+                                                       // deferred.progress(function() { bind to newDefer or newDefer.notify })
+                                                       // deferred.done(function() { bind to newDefer or newDefer.resolve })
+                                                       // deferred.fail(function() { bind to newDefer or newDefer.reject })
+                                                       deferred[ tuple[ 1 ] ]( function() {
+                                                               var returned = fn && fn.apply( this, arguments );
+                                                               if ( returned && jQuery.isFunction( returned.promise ) ) {
+                                                                       returned.promise()
+                                                                               .progress( newDefer.notify )
+                                                                               .done( newDefer.resolve )
+                                                                               .fail( newDefer.reject );
+                                                               } else {
+                                                                       newDefer[ tuple[ 0 ] + "With" ](
+                                                                               this,
+                                                                               fn ? [ returned ] : arguments
+                                                                       );
+                                                               }
+                                                       } );
+                                               } );
+                                               fns = null;
+                                       } ).promise();
+                               },
+                               then: function( onFulfilled, onRejected, onProgress ) {
+                                       var maxDepth = 0;
+                                       function resolve( depth, deferred, handler, special ) {
+                                               return function() {
+                                                       var that = this,
+                                                               args = arguments,
+                                                               mightThrow = function() {
+                                                                       var returned, then;
+
+                                                                       // Support: Promises/A+ section 2.3.3.3.3
+                                                                       // https://promisesaplus.com/#point-59
+                                                                       // Ignore double-resolution attempts
+                                                                       if ( depth < maxDepth ) {
+                                                                               return;
+                                                                       }
+
+                                                                       returned = handler.apply( that, args );
+
+                                                                       // Support: Promises/A+ section 2.3.1
+                                                                       // https://promisesaplus.com/#point-48
+                                                                       if ( returned === deferred.promise() ) {
+                                                                               throw new TypeError( "Thenable self-resolution" );
+                                                                       }
+
+                                                                       // Support: Promises/A+ sections 2.3.3.1, 3.5
+                                                                       // https://promisesaplus.com/#point-54
+                                                                       // https://promisesaplus.com/#point-75
+                                                                       // Retrieve `then` only once
+                                                                       then = returned &&
+
+                                                                               // Support: Promises/A+ section 2.3.4
+                                                                               // https://promisesaplus.com/#point-64
+                                                                               // Only check objects and functions for thenability
+                                                                               ( typeof returned === "object" ||
+                                                                                       typeof returned === "function" ) &&
+                                                                               returned.then;
+
+                                                                       // Handle a returned thenable
+                                                                       if ( jQuery.isFunction( then ) ) {
+
+                                                                               // Special processors (notify) just wait for resolution
+                                                                               if ( special ) {
+                                                                                       then.call(
+                                                                                               returned,
+                                                                                               resolve( maxDepth, deferred, Identity, special ),
+                                                                                               resolve( maxDepth, deferred, Thrower, special )
+                                                                                       );
+
+                                                                               // Normal processors (resolve) also hook into progress
+                                                                               } else {
+
+                                                                                       // ...and disregard older resolution values
+                                                                                       maxDepth++;
+
+                                                                                       then.call(
+                                                                                               returned,
+                                                                                               resolve( maxDepth, deferred, Identity, special ),
+                                                                                               resolve( maxDepth, deferred, Thrower, special ),
+                                                                                               resolve( maxDepth, deferred, Identity,
+                                                                                                       deferred.notifyWith )
+                                                                                       );
+                                                                               }
+
+                                                                       // Handle all other returned values
+                                                                       } else {
+
+                                                                               // Only substitute handlers pass on context
+                                                                               // and multiple values (non-spec behavior)
+                                                                               if ( handler !== Identity ) {
+                                                                                       that = undefined;
+                                                                                       args = [ returned ];
+                                                                               }
+
+                                                                               // Process the value(s)
+                                                                               // Default process is resolve
+                                                                               ( special || deferred.resolveWith )( that, args );
+                                                                       }
+                                                               },
+
+                                                               // Only normal processors (resolve) catch and reject exceptions
+                                                               process = special ?
+                                                                       mightThrow :
+                                                                       function() {
+                                                                               try {
+                                                                                       mightThrow();
+                                                                               } catch ( e ) {
+
+                                                                                       if ( jQuery.Deferred.exceptionHook ) {
+                                                                                               jQuery.Deferred.exceptionHook( e,
+                                                                                                       process.stackTrace );
+                                                                                       }
+
+                                                                                       // Support: Promises/A+ section 2.3.3.3.4.1
+                                                                                       // https://promisesaplus.com/#point-61
+                                                                                       // Ignore post-resolution exceptions
+                                                                                       if ( depth + 1 >= maxDepth ) {
+
+                                                                                               // Only substitute handlers pass on context
+                                                                                               // and multiple values (non-spec behavior)
+                                                                                               if ( handler !== Thrower ) {
+                                                                                                       that = undefined;
+                                                                                                       args = [ e ];
+                                                                                               }
+
+                                                                                               deferred.rejectWith( that, args );
+                                                                                       }
+                                                                               }
+                                                                       };
+
+                                                       // Support: Promises/A+ section 2.3.3.3.1
+                                                       // https://promisesaplus.com/#point-57
+                                                       // Re-resolve promises immediately to dodge false rejection from
+                                                       // subsequent errors
+                                                       if ( depth ) {
+                                                               process();
+                                                       } else {
+
+                                                               // Call an optional hook to record the stack, in case of exception
+                                                               // since it's otherwise lost when execution goes async
+                                                               if ( jQuery.Deferred.getStackHook ) {
+                                                                       process.stackTrace = jQuery.Deferred.getStackHook();
+                                                               }
+                                                               window.setTimeout( process );
+                                                       }
+                                               };
+                                       }
+
+                                       return jQuery.Deferred( function( newDefer ) {
+
+                                               // progress_handlers.add( ... )
+                                               tuples[ 0 ][ 3 ].add(
+                                                       resolve(
+                                                               0,
+                                                               newDefer,
+                                                               jQuery.isFunction( onProgress ) ?
+                                                                       onProgress :
+                                                                       Identity,
+                                                               newDefer.notifyWith
+                                                       )
+                                               );
+
+                                               // fulfilled_handlers.add( ... )
+                                               tuples[ 1 ][ 3 ].add(
+                                                       resolve(
+                                                               0,
+                                                               newDefer,
+                                                               jQuery.isFunction( onFulfilled ) ?
+                                                                       onFulfilled :
+                                                                       Identity
+                                                       )
+                                               );
+
+                                               // rejected_handlers.add( ... )
+                                               tuples[ 2 ][ 3 ].add(
+                                                       resolve(
+                                                               0,
+                                                               newDefer,
+                                                               jQuery.isFunction( onRejected ) ?
+                                                                       onRejected :
+                                                                       Thrower
+                                                       )
+                                               );
+                                       } ).promise();
+                               },
+
+                               // Get a promise for this deferred
+                               // If obj is provided, the promise aspect is added to the object
+                               promise: function( obj ) {
+                                       return obj != null ? jQuery.extend( obj, promise ) : promise;
+                               }
+                       },
+                       deferred = {};
+
+               // Add list-specific methods
+               jQuery.each( tuples, function( i, tuple ) {
+                       var list = tuple[ 2 ],
+                               stateString = tuple[ 5 ];
+
+                       // promise.progress = list.add
+                       // promise.done = list.add
+                       // promise.fail = list.add
+                       promise[ tuple[ 1 ] ] = list.add;
+
+                       // Handle state
+                       if ( stateString ) {
+                               list.add(
+                                       function() {
+
+                                               // state = "resolved" (i.e., fulfilled)
+                                               // state = "rejected"
+                                               state = stateString;
+                                       },
+
+                                       // rejected_callbacks.disable
+                                       // fulfilled_callbacks.disable
+                                       tuples[ 3 - i ][ 2 ].disable,
+
+                                       // progress_callbacks.lock
+                                       tuples[ 0 ][ 2 ].lock
+                               );
+                       }
+
+                       // progress_handlers.fire
+                       // fulfilled_handlers.fire
+                       // rejected_handlers.fire
+                       list.add( tuple[ 3 ].fire );
+
+                       // deferred.notify = function() { deferred.notifyWith(...) }
+                       // deferred.resolve = function() { deferred.resolveWith(...) }
+                       // deferred.reject = function() { deferred.rejectWith(...) }
+                       deferred[ tuple[ 0 ] ] = function() {
+                               deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
+                               return this;
+                       };
+
+                       // deferred.notifyWith = list.fireWith
+                       // deferred.resolveWith = list.fireWith
+                       // deferred.rejectWith = list.fireWith
+                       deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
+               } );
+
+               // Make the deferred a promise
+               promise.promise( deferred );
+
+               // Call given func if any
+               if ( func ) {
+                       func.call( deferred, deferred );
+               }
+
+               // All done!
+               return deferred;
+       },
+
+       // Deferred helper
+       when: function( singleValue ) {
+               var
+
+                       // count of uncompleted subordinates
+                       remaining = arguments.length,
+
+                       // count of unprocessed arguments
+                       i = remaining,
+
+                       // subordinate fulfillment data
+                       resolveContexts = Array( i ),
+                       resolveValues = slice.call( arguments ),
+
+                       // the master Deferred
+                       master = jQuery.Deferred(),
+
+                       // subordinate callback factory
+                       updateFunc = function( i ) {
+                               return function( value ) {
+                                       resolveContexts[ i ] = this;
+                                       resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
+                                       if ( !( --remaining ) ) {
+                                               master.resolveWith( resolveContexts, resolveValues );
+                                       }
+                               };
+                       };
+
+               // Single- and empty arguments are adopted like Promise.resolve
+               if ( remaining <= 1 ) {
+                       adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
+                               !remaining );
+
+                       // Use .then() to unwrap secondary thenables (cf. gh-3000)
+                       if ( master.state() === "pending" ||
+                               jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
+
+                               return master.then();
+                       }
+               }
+
+               // Multiple arguments are aggregated like Promise.all array elements
+               while ( i-- ) {
+                       adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
+               }
+
+               return master.promise();
+       }
+} );
+
+
+// These usually indicate a programmer mistake during development,
+// warn about them ASAP rather than swallowing them by default.
+var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
+
+jQuery.Deferred.exceptionHook = function( error, stack ) {
+
+       // Support: IE 8 - 9 only
+       // Console exists when dev tools are open, which can happen at any time
+       if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
+               window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
+       }
+};
+
+
+
+
+jQuery.readyException = function( error ) {
+       window.setTimeout( function() {
+               throw error;
+       } );
+};
+
+
+
+
+// The deferred used on DOM ready
+var readyList = jQuery.Deferred();
+
+jQuery.fn.ready = function( fn ) {
+
+       readyList
+               .then( fn )
+
+               // Wrap jQuery.readyException in a function so that the lookup
+               // happens at the time of error handling instead of callback
+               // registration.
+               .catch( function( error ) {
+                       jQuery.readyException( error );
+               } );
+
+       return this;
+};
+
+jQuery.extend( {
+
+       // Is the DOM ready to be used? Set to true once it occurs.
+       isReady: false,
+
+       // A counter to track how many items to wait for before
+       // the ready event fires. See #6781
+       readyWait: 1,
+
+       // Handle when the DOM is ready
+       ready: function( wait ) {
+
+               // Abort if there are pending holds or we're already ready
+               if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+                       return;
+               }
+
+               // Remember that the DOM is ready
+               jQuery.isReady = true;
+
+               // If a normal DOM Ready event fired, decrement, and wait if need be
+               if ( wait !== true && --jQuery.readyWait > 0 ) {
+                       return;
+               }
+
+               // If there are functions bound, to execute
+               readyList.resolveWith( document, [ jQuery ] );
+       }
+} );
+
+jQuery.ready.then = readyList.then;
+
+// The ready event handler and self cleanup method
+function completed() {
+       document.removeEventListener( "DOMContentLoaded", completed );
+       window.removeEventListener( "load", completed );
+       jQuery.ready();
+}
+
+// Catch cases where $(document).ready() is called
+// after the browser event has already occurred.
+// Support: IE <=9 - 10 only
+// Older IE sometimes signals "interactive" too soon
+if ( document.readyState === "complete" ||
+       ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
+
+       // Handle it asynchronously to allow scripts the opportunity to delay ready
+       window.setTimeout( jQuery.ready );
+
+} else {
+
+       // Use the handy event callback
+       document.addEventListener( "DOMContentLoaded", completed );
+
+       // A fallback to window.onload, that will always work
+       window.addEventListener( "load", completed );
+}
+
+
+
+
+// Multifunctional method to get and set values of a collection
+// The value/s can optionally be executed if it's a function
+var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
+       var i = 0,
+               len = elems.length,
+               bulk = key == null;
+
+       // Sets many values
+       if ( jQuery.type( key ) === "object" ) {
+               chainable = true;
+               for ( i in key ) {
+                       access( elems, fn, i, key[ i ], true, emptyGet, raw );
+               }
+
+       // Sets one value
+       } else if ( value !== undefined ) {
+               chainable = true;
+
+               if ( !jQuery.isFunction( value ) ) {
+                       raw = true;
+               }
+
+               if ( bulk ) {
+
+                       // Bulk operations run against the entire set
+                       if ( raw ) {
+                               fn.call( elems, value );
+                               fn = null;
+
+                       // ...except when executing function values
+                       } else {
+                               bulk = fn;
+                               fn = function( elem, key, value ) {
+                                       return bulk.call( jQuery( elem ), value );
+                               };
+                       }
+               }
+
+               if ( fn ) {
+                       for ( ; i < len; i++ ) {
+                               fn(
+                                       elems[ i ], key, raw ?
+                                       value :
+                                       value.call( elems[ i ], i, fn( elems[ i ], key ) )
+                               );
+                       }
+               }
+       }
+
+       if ( chainable ) {
+               return elems;
+       }
+
+       // Gets
+       if ( bulk ) {
+               return fn.call( elems );
+       }
+
+       return len ? fn( elems[ 0 ], key ) : emptyGet;
+};
+var acceptData = function( owner ) {
+
+       // Accepts only:
+       //  - Node
+       //    - Node.ELEMENT_NODE
+       //    - Node.DOCUMENT_NODE
+       //  - Object
+       //    - Any
+       return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
+};
+
+
+
+
+function Data() {
+       this.expando = jQuery.expando + Data.uid++;
+}
+
+Data.uid = 1;
+
+Data.prototype = {
+
+       cache: function( owner ) {
+
+               // Check if the owner object already has a cache
+               var value = owner[ this.expando ];
+
+               // If not, create one
+               if ( !value ) {
+                       value = {};
+
+                       // We can accept data for non-element nodes in modern browsers,
+                       // but we should not, see #8335.
+                       // Always return an empty object.
+                       if ( acceptData( owner ) ) {
+
+                               // If it is a node unlikely to be stringify-ed or looped over
+                               // use plain assignment
+                               if ( owner.nodeType ) {
+                                       owner[ this.expando ] = value;
+
+                               // Otherwise secure it in a non-enumerable property
+                               // configurable must be true to allow the property to be
+                               // deleted when data is removed
+                               } else {
+                                       Object.defineProperty( owner, this.expando, {
+                                               value: value,
+                                               configurable: true
+                                       } );
+                               }
+                       }
+               }
+
+               return value;
+       },
+       set: function( owner, data, value ) {
+               var prop,
+                       cache = this.cache( owner );
+
+               // Handle: [ owner, key, value ] args
+               // Always use camelCase key (gh-2257)
+               if ( typeof data === "string" ) {
+                       cache[ jQuery.camelCase( data ) ] = value;
+
+               // Handle: [ owner, { properties } ] args
+               } else {
+
+                       // Copy the properties one-by-one to the cache object
+                       for ( prop in data ) {
+                               cache[ jQuery.camelCase( prop ) ] = data[ prop ];
+                       }
+               }
+               return cache;
+       },
+       get: function( owner, key ) {
+               return key === undefined ?
+                       this.cache( owner ) :
+
+                       // Always use camelCase key (gh-2257)
+                       owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
+       },
+       access: function( owner, key, value ) {
+
+               // In cases where either:
+               //
+               //   1. No key was specified
+               //   2. A string key was specified, but no value provided
+               //
+               // Take the "read" path and allow the get method to determine
+               // which value to return, respectively either:
+               //
+               //   1. The entire cache object
+               //   2. The data stored at the key
+               //
+               if ( key === undefined ||
+                               ( ( key && typeof key === "string" ) && value === undefined ) ) {
+
+                       return this.get( owner, key );
+               }
+
+               // When the key is not a string, or both a key and value
+               // are specified, set or extend (existing objects) with either:
+               //
+               //   1. An object of properties
+               //   2. A key and value
+               //
+               this.set( owner, key, value );
+
+               // Since the "set" path can have two possible entry points
+               // return the expected data based on which path was taken[*]
+               return value !== undefined ? value : key;
+       },
+       remove: function( owner, key ) {
+               var i,
+                       cache = owner[ this.expando ];
+
+               if ( cache === undefined ) {
+                       return;
+               }
+
+               if ( key !== undefined ) {
+
+                       // Support array or space separated string of keys
+                       if ( Array.isArray( key ) ) {
+
+                               // If key is an array of keys...
+                               // We always set camelCase keys, so remove that.
+                               key = key.map( jQuery.camelCase );
+                       } else {
+                               key = jQuery.camelCase( key );
+
+                               // If a key with the spaces exists, use it.
+                               // Otherwise, create an array by matching non-whitespace
+                               key = key in cache ?
+                                       [ key ] :
+                                       ( key.match( rnothtmlwhite ) || [] );
+                       }
+
+                       i = key.length;
+
+                       while ( i-- ) {
+                               delete cache[ key[ i ] ];
+                       }
+               }
+
+               // Remove the expando if there's no more data
+               if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
+
+                       // Support: Chrome <=35 - 45
+                       // Webkit & Blink performance suffers when deleting properties
+                       // from DOM nodes, so set to undefined instead
+                       // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
+                       if ( owner.nodeType ) {
+                               owner[ this.expando ] = undefined;
+                       } else {
+                               delete owner[ this.expando ];
+                       }
+               }
+       },
+       hasData: function( owner ) {
+               var cache = owner[ this.expando ];
+               return cache !== undefined && !jQuery.isEmptyObject( cache );
+       }
+};
+var dataPriv = new Data();
+
+var dataUser = new Data();
+
+
+
+//     Implementation Summary
+//
+//     1. Enforce API surface and semantic compatibility with 1.9.x branch
+//     2. Improve the module's maintainability by reducing the storage
+//             paths to a single mechanism.
+//     3. Use the same single mechanism to support "private" and "user" data.
+//     4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
+//     5. Avoid exposing implementation details on user objects (eg. expando properties)
+//     6. Provide a clear path for implementation upgrade to WeakMap in 2014
+
+var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
+       rmultiDash = /[A-Z]/g;
+
+function getData( data ) {
+       if ( data === "true" ) {
+               return true;
+       }
+
+       if ( data === "false" ) {
+               return false;
+       }
+
+       if ( data === "null" ) {
+               return null;
+       }
+
+       // Only convert to a number if it doesn't change the string
+       if ( data === +data + "" ) {
+               return +data;
+       }
+
+       if ( rbrace.test( data ) ) {
+               return JSON.parse( data );
+       }
+
+       return data;
+}
+
+function dataAttr( elem, key, data ) {
+       var name;
+
+       // If nothing was found internally, try to fetch any
+       // data from the HTML5 data-* attribute
+       if ( data === undefined && elem.nodeType === 1 ) {
+               name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
+               data = elem.getAttribute( name );
+
+               if ( typeof data === "string" ) {
+                       try {
+                               data = getData( data );
+                       } catch ( e ) {}
+
+                       // Make sure we set the data so it isn't changed later
+                       dataUser.set( elem, key, data );
+               } else {
+                       data = undefined;
+               }
+       }
+       return data;
+}
+
+jQuery.extend( {
+       hasData: function( elem ) {
+               return dataUser.hasData( elem ) || dataPriv.hasData( elem );
+       },
+
+       data: function( elem, name, data ) {
+               return dataUser.access( elem, name, data );
+       },
+
+       removeData: function( elem, name ) {
+               dataUser.remove( elem, name );
+       },
+
+       // TODO: Now that all calls to _data and _removeData have been replaced
+       // with direct calls to dataPriv methods, these can be deprecated.
+       _data: function( elem, name, data ) {
+               return dataPriv.access( elem, name, data );
+       },
+
+       _removeData: function( elem, name ) {
+               dataPriv.remove( elem, name );
+       }
+} );
+
+jQuery.fn.extend( {
+       data: function( key, value ) {
+               var i, name, data,
+                       elem = this[ 0 ],
+                       attrs = elem && elem.attributes;
+
+               // Gets all values
+               if ( key === undefined ) {
+                       if ( this.length ) {
+                               data = dataUser.get( elem );
+
+                               if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
+                                       i = attrs.length;
+                                       while ( i-- ) {
+
+                                               // Support: IE 11 only
+                                               // The attrs elements can be null (#14894)
+                                               if ( attrs[ i ] ) {
+                                                       name = attrs[ i ].name;
+                                                       if ( name.indexOf( "data-" ) === 0 ) {
+                                                               name = jQuery.camelCase( name.slice( 5 ) );
+                                                               dataAttr( elem, name, data[ name ] );
+                                                       }
+                                               }
+                                       }
+                                       dataPriv.set( elem, "hasDataAttrs", true );
+                               }
+                       }
+
+                       return data;
+               }
+
+               // Sets multiple values
+               if ( typeof key === "object" ) {
+                       return this.each( function() {
+                               dataUser.set( this, key );
+                       } );
+               }
+
+               return access( this, function( value ) {
+                       var data;
+
+                       // The calling jQuery object (element matches) is not empty
+                       // (and therefore has an element appears at this[ 0 ]) and the
+                       // `value` parameter was not undefined. An empty jQuery object
+                       // will result in `undefined` for elem = this[ 0 ] which will
+                       // throw an exception if an attempt to read a data cache is made.
+                       if ( elem && value === undefined ) {
+
+                               // Attempt to get data from the cache
+                               // The key will always be camelCased in Data
+                               data = dataUser.get( elem, key );
+                               if ( data !== undefined ) {
+                                       return data;
+                               }
+
+                               // Attempt to "discover" the data in
+                               // HTML5 custom data-* attrs
+                               data = dataAttr( elem, key );
+                               if ( data !== undefined ) {
+                                       return data;
+                               }
+
+                               // We tried really hard, but the data doesn't exist.
+                               return;
+                       }
+
+                       // Set the data...
+                       this.each( function() {
+
+                               // We always store the camelCased key
+                               dataUser.set( this, key, value );
+                       } );
+               }, null, value, arguments.length > 1, null, true );
+       },
+
+       removeData: function( key ) {
+               return this.each( function() {
+                       dataUser.remove( this, key );
+               } );
+       }
+} );
+
+
+jQuery.extend( {
+       queue: function( elem, type, data ) {
+               var queue;
+
+               if ( elem ) {
+                       type = ( type || "fx" ) + "queue";
+                       queue = dataPriv.get( elem, type );
+
+                       // Speed up dequeue by getting out quickly if this is just a lookup
+                       if ( data ) {
+                               if ( !queue || Array.isArray( data ) ) {
+                                       queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
+                               } else {
+                                       queue.push( data );
+                               }
+                       }
+                       return queue || [];
+               }
+       },
+
+       dequeue: function( elem, type ) {
+               type = type || "fx";
+
+               var queue = jQuery.queue( elem, type ),
+                       startLength = queue.length,
+                       fn = queue.shift(),
+                       hooks = jQuery._queueHooks( elem, type ),
+                       next = function() {
+                               jQuery.dequeue( elem, type );
+                       };
+
+               // If the fx queue is dequeued, always remove the progress sentinel
+               if ( fn === "inprogress" ) {
+                       fn = queue.shift();
+                       startLength--;
+               }
+
+               if ( fn ) {
+
+                       // Add a progress sentinel to prevent the fx queue from being
+                       // automatically dequeued
+                       if ( type === "fx" ) {
+                               queue.unshift( "inprogress" );
+                       }
+
+                       // Clear up the last queue stop function
+                       delete hooks.stop;
+                       fn.call( elem, next, hooks );
+               }
+
+               if ( !startLength && hooks ) {
+                       hooks.empty.fire();
+               }
+       },
+
+       // Not public - generate a queueHooks object, or return the current one
+       _queueHooks: function( elem, type ) {
+               var key = type + "queueHooks";
+               return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
+                       empty: jQuery.Callbacks( "once memory" ).add( function() {
+                               dataPriv.remove( elem, [ type + "queue", key ] );
+                       } )
+               } );
+       }
+} );
+
+jQuery.fn.extend( {
+       queue: function( type, data ) {
+               var setter = 2;
+
+               if ( typeof type !== "string" ) {
+                       data = type;
+                       type = "fx";
+                       setter--;
+               }
+
+               if ( arguments.length < setter ) {
+                       return jQuery.queue( this[ 0 ], type );
+               }
+
+               return data === undefined ?
+                       this :
+                       this.each( function() {
+                               var queue = jQuery.queue( this, type, data );
+
+                               // Ensure a hooks for this queue
+                               jQuery._queueHooks( this, type );
+
+                               if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
+                                       jQuery.dequeue( this, type );
+                               }
+                       } );
+       },
+       dequeue: function( type ) {
+               return this.each( function() {
+                       jQuery.dequeue( this, type );
+               } );
+       },
+       clearQueue: function( type ) {
+               return this.queue( type || "fx", [] );
+       },
+
+       // Get a promise resolved when queues of a certain type
+       // are emptied (fx is the type by default)
+       promise: function( type, obj ) {
+               var tmp,
+                       count = 1,
+                       defer = jQuery.Deferred(),
+                       elements = this,
+                       i = this.length,
+                       resolve = function() {
+                               if ( !( --count ) ) {
+                                       defer.resolveWith( elements, [ elements ] );
+                               }
+                       };
+
+               if ( typeof type !== "string" ) {
+                       obj = type;
+                       type = undefined;
+               }
+               type = type || "fx";
+
+               while ( i-- ) {
+                       tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
+                       if ( tmp && tmp.empty ) {
+                               count++;
+                               tmp.empty.add( resolve );
+                       }
+               }
+               resolve();
+               return defer.promise( obj );
+       }
+} );
+var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
+
+var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
+
+
+var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
+
+var isHiddenWithinTree = function( elem, el ) {
+
+               // isHiddenWithinTree might be called from jQuery#filter function;
+               // in that case, element will be second argument
+               elem = el || elem;
+
+               // Inline style trumps all
+               return elem.style.display === "none" ||
+                       elem.style.display === "" &&
+
+                       // Otherwise, check computed style
+                       // Support: Firefox <=43 - 45
+                       // Disconnected elements can have computed display: none, so first confirm that elem is
+                       // in the document.
+                       jQuery.contains( elem.ownerDocument, elem ) &&
+
+                       jQuery.css( elem, "display" ) === "none";
+       };
+
+var swap = function( elem, options, callback, args ) {
+       var ret, name,
+               old = {};
+
+       // Remember the old values, and insert the new ones
+       for ( name in options ) {
+               old[ name ] = elem.style[ name ];
+               elem.style[ name ] = options[ name ];
+       }
+
+       ret = callback.apply( elem, args || [] );
+
+       // Revert the old values
+       for ( name in options ) {
+               elem.style[ name ] = old[ name ];
+       }
+
+       return ret;
+};
+
+
+
+
+function adjustCSS( elem, prop, valueParts, tween ) {
+       var adjusted,
+               scale = 1,
+               maxIterations = 20,
+               currentValue = tween ?
+                       function() {
+                               return tween.cur();
+                       } :
+                       function() {
+                               return jQuery.css( elem, prop, "" );
+                       },
+               initial = currentValue(),
+               unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+               // Starting value computation is required for potential unit mismatches
+               initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
+                       rcssNum.exec( jQuery.css( elem, prop ) );
+
+       if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
+
+               // Trust units reported by jQuery.css
+               unit = unit || initialInUnit[ 3 ];
+
+               // Make sure we update the tween properties later on
+               valueParts = valueParts || [];
+
+               // Iteratively approximate from a nonzero starting point
+               initialInUnit = +initial || 1;
+
+               do {
+
+                       // If previous iteration zeroed out, double until we get *something*.
+                       // Use string for doubling so we don't accidentally see scale as unchanged below
+                       scale = scale || ".5";
+
+                       // Adjust and apply
+                       initialInUnit = initialInUnit / scale;
+                       jQuery.style( elem, prop, initialInUnit + unit );
+
+               // Update scale, tolerating zero or NaN from tween.cur()
+               // Break the loop if scale is unchanged or perfect, or if we've just had enough.
+               } while (
+                       scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
+               );
+       }
+
+       if ( valueParts ) {
+               initialInUnit = +initialInUnit || +initial || 0;
+
+               // Apply relative offset (+=/-=) if specified
+               adjusted = valueParts[ 1 ] ?
+                       initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+                       +valueParts[ 2 ];
+               if ( tween ) {
+                       tween.unit = unit;
+                       tween.start = initialInUnit;
+                       tween.end = adjusted;
+               }
+       }
+       return adjusted;
+}
+
+
+var defaultDisplayMap = {};
+
+function getDefaultDisplay( elem ) {
+       var temp,
+               doc = elem.ownerDocument,
+               nodeName = elem.nodeName,
+               display = defaultDisplayMap[ nodeName ];
+
+       if ( display ) {
+               return display;
+       }
+
+       temp = doc.body.appendChild( doc.createElement( nodeName ) );
+       display = jQuery.css( temp, "display" );
+
+       temp.parentNode.removeChild( temp );
+
+       if ( display === "none" ) {
+               display = "block";
+       }
+       defaultDisplayMap[ nodeName ] = display;
+
+       return display;
+}
+
+function showHide( elements, show ) {
+       var display, elem,
+               values = [],
+               index = 0,
+               length = elements.length;
+
+       // Determine new display value for elements that need to change
+       for ( ; index < length; index++ ) {
+               elem = elements[ index ];
+               if ( !elem.style ) {
+                       continue;
+               }
+
+               display = elem.style.display;
+               if ( show ) {
+
+                       // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
+                       // check is required in this first loop unless we have a nonempty display value (either
+                       // inline or about-to-be-restored)
+                       if ( display === "none" ) {
+                               values[ index ] = dataPriv.get( elem, "display" ) || null;
+                               if ( !values[ index ] ) {
+                                       elem.style.display = "";
+                               }
+                       }
+                       if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
+                               values[ index ] = getDefaultDisplay( elem );
+                       }
+               } else {
+                       if ( display !== "none" ) {
+                               values[ index ] = "none";
+
+                               // Remember what we're overwriting
+                               dataPriv.set( elem, "display", display );
+                       }
+               }
+       }
+
+       // Set the display of the elements in a second loop to avoid constant reflow
+       for ( index = 0; index < length; index++ ) {
+               if ( values[ index ] != null ) {
+                       elements[ index ].style.display = values[ index ];
+               }
+       }
+
+       return elements;
+}
+
+jQuery.fn.extend( {
+       show: function() {
+               return showHide( this, true );
+       },
+       hide: function() {
+               return showHide( this );
+       },
+       toggle: function( state ) {
+               if ( typeof state === "boolean" ) {
+                       return state ? this.show() : this.hide();
+               }
+
+               return this.each( function() {
+                       if ( isHiddenWithinTree( this ) ) {
+                               jQuery( this ).show();
+                       } else {
+                               jQuery( this ).hide();
+                       }
+               } );
+       }
+} );
+var rcheckableType = ( /^(?:checkbox|radio)$/i );
+
+var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
+
+var rscriptType = ( /^$|\/(?:java|ecma)script/i );
+
+
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+       // Support: IE <=9 only
+       option: [ 1, "<select multiple='multiple'>", "</select>" ],
+
+       // XHTML parsers do not magically insert elements in the
+       // same way that tag soup parsers do. So we cannot shorten
+       // this by omitting <tbody> or other required elements.
+       thead: [ 1, "<table>", "</table>" ],
+       col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+       tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+       td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+       _default: [ 0, "", "" ]
+};
+
+// Support: IE <=9 only
+wrapMap.optgroup = wrapMap.option;
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+
+function getAll( context, tag ) {
+
+       // Support: IE <=9 - 11 only
+       // Use typeof to avoid zero-argument method invocation on host objects (#15151)
+       var ret;
+
+       if ( typeof context.getElementsByTagName !== "undefined" ) {
+               ret = context.getElementsByTagName( tag || "*" );
+
+       } else if ( typeof context.querySelectorAll !== "undefined" ) {
+               ret = context.querySelectorAll( tag || "*" );
+
+       } else {
+               ret = [];
+       }
+
+       if ( tag === undefined || tag && nodeName( context, tag ) ) {
+               return jQuery.merge( [ context ], ret );
+       }
+
+       return ret;
+}
+
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+       var i = 0,
+               l = elems.length;
+
+       for ( ; i < l; i++ ) {
+               dataPriv.set(
+                       elems[ i ],
+                       "globalEval",
+                       !refElements || dataPriv.get( refElements[ i ], "globalEval" )
+               );
+       }
+}
+
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+       var elem, tmp, tag, wrap, contains, j,
+               fragment = context.createDocumentFragment(),
+               nodes = [],
+               i = 0,
+               l = elems.length;
+
+       for ( ; i < l; i++ ) {
+               elem = elems[ i ];
+
+               if ( elem || elem === 0 ) {
+
+                       // Add nodes directly
+                       if ( jQuery.type( elem ) === "object" ) {
+
+                               // Support: Android <=4.0 only, PhantomJS 1 only
+                               // push.apply(_, arraylike) throws on ancient WebKit
+                               jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+                       // Convert non-html into a text node
+                       } else if ( !rhtml.test( elem ) ) {
+                               nodes.push( context.createTextNode( elem ) );
+
+                       // Convert html into DOM nodes
+                       } else {
+                               tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+                               // Deserialize a standard representation
+                               tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+                               wrap = wrapMap[ tag ] || wrapMap._default;
+                               tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+                               // Descend through wrappers to the right content
+                               j = wrap[ 0 ];
+                               while ( j-- ) {
+                                       tmp = tmp.lastChild;
+                               }
+
+                               // Support: Android <=4.0 only, PhantomJS 1 only
+                               // push.apply(_, arraylike) throws on ancient WebKit
+                               jQuery.merge( nodes, tmp.childNodes );
+
+                               // Remember the top-level container
+                               tmp = fragment.firstChild;
+
+                               // Ensure the created nodes are orphaned (#12392)
+                               tmp.textContent = "";
+                       }
+               }
+       }
+
+       // Remove wrapper from fragment
+       fragment.textContent = "";
+
+       i = 0;
+       while ( ( elem = nodes[ i++ ] ) ) {
+
+               // Skip elements already in the context collection (trac-4087)
+               if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+                       if ( ignored ) {
+                               ignored.push( elem );
+                       }
+                       continue;
+               }
+
+               contains = jQuery.contains( elem.ownerDocument, elem );
+
+               // Append to fragment
+               tmp = getAll( fragment.appendChild( elem ), "script" );
+
+               // Preserve script evaluation history
+               if ( contains ) {
+                       setGlobalEval( tmp );
+               }
+
+               // Capture executables
+               if ( scripts ) {
+                       j = 0;
+                       while ( ( elem = tmp[ j++ ] ) ) {
+                               if ( rscriptType.test( elem.type || "" ) ) {
+                                       scripts.push( elem );
+                               }
+                       }
+               }
+       }
+
+       return fragment;
+}
+
+
+( function() {
+       var fragment = document.createDocumentFragment(),
+               div = fragment.appendChild( document.createElement( "div" ) ),
+               input = document.createElement( "input" );
+
+       // Support: Android 4.0 - 4.3 only
+       // Check state lost if the name is set (#11217)
+       // Support: Windows Web Apps (WWA)
+       // `name` and `type` must use .setAttribute for WWA (#14901)
+       input.setAttribute( "type", "radio" );
+       input.setAttribute( "checked", "checked" );
+       input.setAttribute( "name", "t" );
+
+       div.appendChild( input );
+
+       // Support: Android <=4.1 only
+       // Older WebKit doesn't clone checked state correctly in fragments
+       support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+       // Support: IE <=11 only
+       // Make sure textarea (and checkbox) defaultValue is properly cloned
+       div.innerHTML = "<textarea>x</textarea>";
+       support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
+} )();
+var documentElement = document.documentElement;
+
+
+
+var
+       rkeyEvent = /^key/,
+       rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
+       rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
+
+function returnTrue() {
+       return true;
+}
+
+function returnFalse() {
+       return false;
+}
+
+// Support: IE <=9 only
+// See #13393 for more info
+function safeActiveElement() {
+       try {
+               return document.activeElement;
+       } catch ( err ) { }
+}
+
+function on( elem, types, selector, data, fn, one ) {
+       var origFn, type;
+
+       // Types can be a map of types/handlers
+       if ( typeof types === "object" ) {
+
+               // ( types-Object, selector, data )
+               if ( typeof selector !== "string" ) {
+
+                       // ( types-Object, data )
+                       data = data || selector;
+                       selector = undefined;
+               }
+               for ( type in types ) {
+                       on( elem, type, selector, data, types[ type ], one );
+               }
+               return elem;
+       }
+
+       if ( data == null && fn == null ) {
+
+               // ( types, fn )
+               fn = selector;
+               data = selector = undefined;
+       } else if ( fn == null ) {
+               if ( typeof selector === "string" ) {
+
+                       // ( types, selector, fn )
+                       fn = data;
+                       data = undefined;
+               } else {
+
+                       // ( types, data, fn )
+                       fn = data;
+                       data = selector;
+                       selector = undefined;
+               }
+       }
+       if ( fn === false ) {
+               fn = returnFalse;
+       } else if ( !fn ) {
+               return elem;
+       }
+
+       if ( one === 1 ) {
+               origFn = fn;
+               fn = function( event ) {
+
+                       // Can use an empty set, since event contains the info
+                       jQuery().off( event );
+                       return origFn.apply( this, arguments );
+               };
+
+               // Use same guid so caller can remove using origFn
+               fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+       }
+       return elem.each( function() {
+               jQuery.event.add( this, types, fn, data, selector );
+       } );
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+       global: {},
+
+       add: function( elem, types, handler, data, selector ) {
+
+               var handleObjIn, eventHandle, tmp,
+                       events, t, handleObj,
+                       special, handlers, type, namespaces, origType,
+                       elemData = dataPriv.get( elem );
+
+               // Don't attach events to noData or text/comment nodes (but allow plain objects)
+               if ( !elemData ) {
+                       return;
+               }
+
+               // Caller can pass in an object of custom data in lieu of the handler
+               if ( handler.handler ) {
+                       handleObjIn = handler;
+                       handler = handleObjIn.handler;
+                       selector = handleObjIn.selector;
+               }
+
+               // Ensure that invalid selectors throw exceptions at attach time
+               // Evaluate against documentElement in case elem is a non-element node (e.g., document)
+               if ( selector ) {
+                       jQuery.find.matchesSelector( documentElement, selector );
+               }
+
+               // Make sure that the handler has a unique ID, used to find/remove it later
+               if ( !handler.guid ) {
+                       handler.guid = jQuery.guid++;
+               }
+
+               // Init the element's event structure and main handler, if this is the first
+               if ( !( events = elemData.events ) ) {
+                       events = elemData.events = {};
+               }
+               if ( !( eventHandle = elemData.handle ) ) {
+                       eventHandle = elemData.handle = function( e ) {
+
+                               // Discard the second event of a jQuery.event.trigger() and
+                               // when an event is called after a page has unloaded
+                               return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
+                                       jQuery.event.dispatch.apply( elem, arguments ) : undefined;
+                       };
+               }
+
+               // Handle multiple events separated by a space
+               types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+               t = types.length;
+               while ( t-- ) {
+                       tmp = rtypenamespace.exec( types[ t ] ) || [];
+                       type = origType = tmp[ 1 ];
+                       namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+                       // There *must* be a type, no attaching namespace-only handlers
+                       if ( !type ) {
+                               continue;
+                       }
+
+                       // If event changes its type, use the special event handlers for the changed type
+                       special = jQuery.event.special[ type ] || {};
+
+                       // If selector defined, determine special event api type, otherwise given type
+                       type = ( selector ? special.delegateType : special.bindType ) || type;
+
+                       // Update special based on newly reset type
+                       special = jQuery.event.special[ type ] || {};
+
+                       // handleObj is passed to all event handlers
+                       handleObj = jQuery.extend( {
+                               type: type,
+                               origType: origType,
+                               data: data,
+                               handler: handler,
+                               guid: handler.guid,
+                               selector: selector,
+                               needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+                               namespace: namespaces.join( "." )
+                       }, handleObjIn );
+
+                       // Init the event handler queue if we're the first
+                       if ( !( handlers = events[ type ] ) ) {
+                               handlers = events[ type ] = [];
+                               handlers.delegateCount = 0;
+
+                               // Only use addEventListener if the special events handler returns false
+                               if ( !special.setup ||
+                                       special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+
+                                       if ( elem.addEventListener ) {
+                                               elem.addEventListener( type, eventHandle );
+                                       }
+                               }
+                       }
+
+                       if ( special.add ) {
+                               special.add.call( elem, handleObj );
+
+                               if ( !handleObj.handler.guid ) {
+                                       handleObj.handler.guid = handler.guid;
+                               }
+                       }
+
+                       // Add to the element's handler list, delegates in front
+                       if ( selector ) {
+                               handlers.splice( handlers.delegateCount++, 0, handleObj );
+                       } else {
+                               handlers.push( handleObj );
+                       }
+
+                       // Keep track of which events have ever been used, for event optimization
+                       jQuery.event.global[ type ] = true;
+               }
+
+       },
+
+       // Detach an event or set of events from an element
+       remove: function( elem, types, handler, selector, mappedTypes ) {
+
+               var j, origCount, tmp,
+                       events, t, handleObj,
+                       special, handlers, type, namespaces, origType,
+                       elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
+
+               if ( !elemData || !( events = elemData.events ) ) {
+                       return;
+               }
+
+               // Once for each type.namespace in types; type may be omitted
+               types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+               t = types.length;
+               while ( t-- ) {
+                       tmp = rtypenamespace.exec( types[ t ] ) || [];
+                       type = origType = tmp[ 1 ];
+                       namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+                       // Unbind all events (on this namespace, if provided) for the element
+                       if ( !type ) {
+                               for ( type in events ) {
+                                       jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+                               }
+                               continue;
+                       }
+
+                       special = jQuery.event.special[ type ] || {};
+                       type = ( selector ? special.delegateType : special.bindType ) || type;
+                       handlers = events[ type ] || [];
+                       tmp = tmp[ 2 ] &&
+                               new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
+
+                       // Remove matching events
+                       origCount = j = handlers.length;
+                       while ( j-- ) {
+                               handleObj = handlers[ j ];
+
+                               if ( ( mappedTypes || origType === handleObj.origType ) &&
+                                       ( !handler || handler.guid === handleObj.guid ) &&
+                                       ( !tmp || tmp.test( handleObj.namespace ) ) &&
+                                       ( !selector || selector === handleObj.selector ||
+                                               selector === "**" && handleObj.selector ) ) {
+                                       handlers.splice( j, 1 );
+
+                                       if ( handleObj.selector ) {
+                                               handlers.delegateCount--;
+                                       }
+                                       if ( special.remove ) {
+                                               special.remove.call( elem, handleObj );
+                                       }
+                               }
+                       }
+
+                       // Remove generic event handler if we removed something and no more handlers exist
+                       // (avoids potential for endless recursion during removal of special event handlers)
+                       if ( origCount && !handlers.length ) {
+                               if ( !special.teardown ||
+                                       special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+
+                                       jQuery.removeEvent( elem, type, elemData.handle );
+                               }
+
+                               delete events[ type ];
+                       }
+               }
+
+               // Remove data and the expando if it's no longer used
+               if ( jQuery.isEmptyObject( events ) ) {
+                       dataPriv.remove( elem, "handle events" );
+               }
+       },
+
+       dispatch: function( nativeEvent ) {
+
+               // Make a writable jQuery.Event from the native event object
+               var event = jQuery.event.fix( nativeEvent );
+
+               var i, j, ret, matched, handleObj, handlerQueue,
+                       args = new Array( arguments.length ),
+                       handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
+                       special = jQuery.event.special[ event.type ] || {};
+
+               // Use the fix-ed jQuery.Event rather than the (read-only) native event
+               args[ 0 ] = event;
+
+               for ( i = 1; i < arguments.length; i++ ) {
+                       args[ i ] = arguments[ i ];
+               }
+
+               event.delegateTarget = this;
+
+               // Call the preDispatch hook for the mapped type, and let it bail if desired
+               if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+                       return;
+               }
+
+               // Determine handlers
+               handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+               // Run delegates first; they may want to stop propagation beneath us
+               i = 0;
+               while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
+                       event.currentTarget = matched.elem;
+
+                       j = 0;
+                       while ( ( handleObj = matched.handlers[ j++ ] ) &&
+                               !event.isImmediatePropagationStopped() ) {
+
+                               // Triggered event must either 1) have no namespace, or 2) have namespace(s)
+                               // a subset or equal to those in the bound event (both can have no namespace).
+                               if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
+
+                                       event.handleObj = handleObj;
+                                       event.data = handleObj.data;
+
+                                       ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
+                                               handleObj.handler ).apply( matched.elem, args );
+
+                                       if ( ret !== undefined ) {
+                                               if ( ( event.result = ret ) === false ) {
+                                                       event.preventDefault();
+                                                       event.stopPropagation();
+                                               }
+                                       }
+                               }
+                       }
+               }
+
+               // Call the postDispatch hook for the mapped type
+               if ( special.postDispatch ) {
+                       special.postDispatch.call( this, event );
+               }
+
+               return event.result;
+       },
+
+       handlers: function( event, handlers ) {
+               var i, handleObj, sel, matchedHandlers, matchedSelectors,
+                       handlerQueue = [],
+                       delegateCount = handlers.delegateCount,
+                       cur = event.target;
+
+               // Find delegate handlers
+               if ( delegateCount &&
+
+                       // Support: IE <=9
+                       // Black-hole SVG <use> instance trees (trac-13180)
+                       cur.nodeType &&
+
+                       // Support: Firefox <=42
+                       // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
+                       // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
+                       // Support: IE 11 only
+                       // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
+                       !( event.type === "click" && event.button >= 1 ) ) {
+
+                       for ( ; cur !== this; cur = cur.parentNode || this ) {
+
+                               // Don't check non-elements (#13208)
+                               // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+                               if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
+                                       matchedHandlers = [];
+                                       matchedSelectors = {};
+                                       for ( i = 0; i < delegateCount; i++ ) {
+                                               handleObj = handlers[ i ];
+
+                                               // Don't conflict with Object.prototype properties (#13203)
+                                               sel = handleObj.selector + " ";
+
+                                               if ( matchedSelectors[ sel ] === undefined ) {
+                                                       matchedSelectors[ sel ] = handleObj.needsContext ?
+                                                               jQuery( sel, this ).index( cur ) > -1 :
+                                                               jQuery.find( sel, this, null, [ cur ] ).length;
+                                               }
+                                               if ( matchedSelectors[ sel ] ) {
+                                                       matchedHandlers.push( handleObj );
+                                               }
+                                       }
+                                       if ( matchedHandlers.length ) {
+                                               handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
+                                       }
+                               }
+                       }
+               }
+
+               // Add the remaining (directly-bound) handlers
+               cur = this;
+               if ( delegateCount < handlers.length ) {
+                       handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
+               }
+
+               return handlerQueue;
+       },
+
+       addProp: function( name, hook ) {
+               Object.defineProperty( jQuery.Event.prototype, name, {
+                       enumerable: true,
+                       configurable: true,
+
+                       get: jQuery.isFunction( hook ) ?
+                               function() {
+                                       if ( this.originalEvent ) {
+                                                       return hook( this.originalEvent );
+                                       }
+                               } :
+                               function() {
+                                       if ( this.originalEvent ) {
+                                                       return this.originalEvent[ name ];
+                                       }
+                               },
+
+                       set: function( value ) {
+                               Object.defineProperty( this, name, {
+                                       enumerable: true,
+                                       configurable: true,
+                                       writable: true,
+                                       value: value
+                               } );
+                       }
+               } );
+       },
+
+       fix: function( originalEvent ) {
+               return originalEvent[ jQuery.expando ] ?
+                       originalEvent :
+                       new jQuery.Event( originalEvent );
+       },
+
+       special: {
+               load: {
+
+                       // Prevent triggered image.load events from bubbling to window.load
+                       noBubble: true
+               },
+               focus: {
+
+                       // Fire native event if possible so blur/focus sequence is correct
+                       trigger: function() {
+                               if ( this !== safeActiveElement() && this.focus ) {
+                                       this.focus();
+                                       return false;
+                               }
+                       },
+                       delegateType: "focusin"
+               },
+               blur: {
+                       trigger: function() {
+                               if ( this === safeActiveElement() && this.blur ) {
+                                       this.blur();
+                                       return false;
+                               }
+                       },
+                       delegateType: "focusout"
+               },
+               click: {
+
+                       // For checkbox, fire native event so checked state will be right
+                       trigger: function() {
+                               if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
+                                       this.click();
+                                       return false;
+                               }
+                       },
+
+                       // For cross-browser consistency, don't fire native .click() on links
+                       _default: function( event ) {
+                               return nodeName( event.target, "a" );
+                       }
+               },
+
+               beforeunload: {
+                       postDispatch: function( event ) {
+
+                               // Support: Firefox 20+
+                               // Firefox doesn't alert if the returnValue field is not set.
+                               if ( event.result !== undefined && event.originalEvent ) {
+                                       event.originalEvent.returnValue = event.result;
+                               }
+                       }
+               }
+       }
+};
+
+jQuery.removeEvent = function( elem, type, handle ) {
+
+       // This "if" is needed for plain objects
+       if ( elem.removeEventListener ) {
+               elem.removeEventListener( type, handle );
+       }
+};
+
+jQuery.Event = function( src, props ) {
+
+       // Allow instantiation without the 'new' keyword
+       if ( !( this instanceof jQuery.Event ) ) {
+               return new jQuery.Event( src, props );
+       }
+
+       // Event object
+       if ( src && src.type ) {
+               this.originalEvent = src;
+               this.type = src.type;
+
+               // Events bubbling up the document may have been marked as prevented
+               // by a handler lower down the tree; reflect the correct value.
+               this.isDefaultPrevented = src.defaultPrevented ||
+                               src.defaultPrevented === undefined &&
+
+                               // Support: Android <=2.3 only
+                               src.returnValue === false ?
+                       returnTrue :
+                       returnFalse;
+
+               // Create target properties
+               // Support: Safari <=6 - 7 only
+               // Target should not be a text node (#504, #13143)
+               this.target = ( src.target && src.target.nodeType === 3 ) ?
+                       src.target.parentNode :
+                       src.target;
+
+               this.currentTarget = src.currentTarget;
+               this.relatedTarget = src.relatedTarget;
+
+       // Event type
+       } else {
+               this.type = src;
+       }
+
+       // Put explicitly provided properties onto the event object
+       if ( props ) {
+               jQuery.extend( this, props );
+       }
+
+       // Create a timestamp if incoming event doesn't have one
+       this.timeStamp = src && src.timeStamp || jQuery.now();
+
+       // Mark it as fixed
+       this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+       constructor: jQuery.Event,
+       isDefaultPrevented: returnFalse,
+       isPropagationStopped: returnFalse,
+       isImmediatePropagationStopped: returnFalse,
+       isSimulated: false,
+
+       preventDefault: function() {
+               var e = this.originalEvent;
+
+               this.isDefaultPrevented = returnTrue;
+
+               if ( e && !this.isSimulated ) {
+                       e.preventDefault();
+               }
+       },
+       stopPropagation: function() {
+               var e = this.originalEvent;
+
+               this.isPropagationStopped = returnTrue;
+
+               if ( e && !this.isSimulated ) {
+                       e.stopPropagation();
+               }
+       },
+       stopImmediatePropagation: function() {
+               var e = this.originalEvent;
+
+               this.isImmediatePropagationStopped = returnTrue;
+
+               if ( e && !this.isSimulated ) {
+                       e.stopImmediatePropagation();
+               }
+
+               this.stopPropagation();
+       }
+};
+
+// Includes all common event props including KeyEvent and MouseEvent specific props
+jQuery.each( {
+       altKey: true,
+       bubbles: true,
+       cancelable: true,
+       changedTouches: true,
+       ctrlKey: true,
+       detail: true,
+       eventPhase: true,
+       metaKey: true,
+       pageX: true,
+       pageY: true,
+       shiftKey: true,
+       view: true,
+       "char": true,
+       charCode: true,
+       key: true,
+       keyCode: true,
+       button: true,
+       buttons: true,
+       clientX: true,
+       clientY: true,
+       offsetX: true,
+       offsetY: true,
+       pointerId: true,
+       pointerType: true,
+       screenX: true,
+       screenY: true,
+       targetTouches: true,
+       toElement: true,
+       touches: true,
+
+       which: function( event ) {
+               var button = event.button;
+
+               // Add which for key events
+               if ( event.which == null && rkeyEvent.test( event.type ) ) {
+                       return event.charCode != null ? event.charCode : event.keyCode;
+               }
+
+               // Add which for click: 1 === left; 2 === middle; 3 === right
+               if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
+                       if ( button & 1 ) {
+                               return 1;
+                       }
+
+                       if ( button & 2 ) {
+                               return 3;
+                       }
+
+                       if ( button & 4 ) {
+                               return 2;
+                       }
+
+                       return 0;
+               }
+
+               return event.which;
+       }
+}, jQuery.event.addProp );
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+//
+// Support: Safari 7 only
+// Safari sends mouseenter too often; see:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
+// for the description of the bug (it existed in older Chrome versions as well).
+jQuery.each( {
+       mouseenter: "mouseover",
+       mouseleave: "mouseout",
+       pointerenter: "pointerover",
+       pointerleave: "pointerout"
+}, function( orig, fix ) {
+       jQuery.event.special[ orig ] = {
+               delegateType: fix,
+               bindType: fix,
+
+               handle: function( event ) {
+                       var ret,
+                               target = this,
+                               related = event.relatedTarget,
+                               handleObj = event.handleObj;
+
+                       // For mouseenter/leave call the handler if related is outside the target.
+                       // NB: No relatedTarget if the mouse left/entered the browser window
+                       if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
+                               event.type = handleObj.origType;
+                               ret = handleObj.handler.apply( this, arguments );
+                               event.type = fix;
+                       }
+                       return ret;
+               }
+       };
+} );
+
+jQuery.fn.extend( {
+
+       on: function( types, selector, data, fn ) {
+               return on( this, types, selector, data, fn );
+       },
+       one: function( types, selector, data, fn ) {
+               return on( this, types, selector, data, fn, 1 );
+       },
+       off: function( types, selector, fn ) {
+               var handleObj, type;
+               if ( types && types.preventDefault && types.handleObj ) {
+
+                       // ( event )  dispatched jQuery.Event
+                       handleObj = types.handleObj;
+                       jQuery( types.delegateTarget ).off(
+                               handleObj.namespace ?
+                                       handleObj.origType + "." + handleObj.namespace :
+                                       handleObj.origType,
+                               handleObj.selector,
+                               handleObj.handler
+                       );
+                       return this;
+               }
+               if ( typeof types === "object" ) {
+
+                       // ( types-object [, selector] )
+                       for ( type in types ) {
+                               this.off( type, selector, types[ type ] );
+                       }
+                       return this;
+               }
+               if ( selector === false || typeof selector === "function" ) {
+
+                       // ( types [, fn] )
+                       fn = selector;
+                       selector = undefined;
+               }
+               if ( fn === false ) {
+                       fn = returnFalse;
+               }
+               return this.each( function() {
+                       jQuery.event.remove( this, types, fn, selector );
+               } );
+       }
+} );
+
+
+var
+
+       /* eslint-disable max-len */
+
+       // See https://github.com/eslint/eslint/issues/3229
+       rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
+
+       /* eslint-enable */
+
+       // Support: IE <=10 - 11, Edge 12 - 13
+       // In IE/Edge using regex groups here causes severe slowdowns.
+       // See https://connect.microsoft.com/IE/feedback/details/1736512/
+       rnoInnerhtml = /<script|<style|<link/i,
+
+       // checked="checked" or checked
+       rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+       rscriptTypeMasked = /^true\/(.*)/,
+       rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
+
+// Prefer a tbody over its parent table for containing new rows
+function manipulationTarget( elem, content ) {
+       if ( nodeName( elem, "table" ) &&
+               nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+
+               return jQuery( ">tbody", elem )[ 0 ] || elem;
+       }
+
+       return elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+       elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
+       return elem;
+}
+function restoreScript( elem ) {
+       var match = rscriptTypeMasked.exec( elem.type );
+
+       if ( match ) {
+               elem.type = match[ 1 ];
+       } else {
+               elem.removeAttribute( "type" );
+       }
+
+       return elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+       var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
+
+       if ( dest.nodeType !== 1 ) {
+               return;
+       }
+
+       // 1. Copy private data: events, handlers, etc.
+       if ( dataPriv.hasData( src ) ) {
+               pdataOld = dataPriv.access( src );
+               pdataCur = dataPriv.set( dest, pdataOld );
+               events = pdataOld.events;
+
+               if ( events ) {
+                       delete pdataCur.handle;
+                       pdataCur.events = {};
+
+                       for ( type in events ) {
+                               for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+                                       jQuery.event.add( dest, type, events[ type ][ i ] );
+                               }
+                       }
+               }
+       }
+
+       // 2. Copy user data
+       if ( dataUser.hasData( src ) ) {
+               udataOld = dataUser.access( src );
+               udataCur = jQuery.extend( {}, udataOld );
+
+               dataUser.set( dest, udataCur );
+       }
+}
+
+// Fix IE bugs, see support tests
+function fixInput( src, dest ) {
+       var nodeName = dest.nodeName.toLowerCase();
+
+       // Fails to persist the checked state of a cloned checkbox or radio button.
+       if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
+               dest.checked = src.checked;
+
+       // Fails to return the selected option to the default selected state when cloning options
+       } else if ( nodeName === "input" || nodeName === "textarea" ) {
+               dest.defaultValue = src.defaultValue;
+       }
+}
+
+function domManip( collection, args, callback, ignored ) {
+
+       // Flatten any nested arrays
+       args = concat.apply( [], args );
+
+       var fragment, first, scripts, hasScripts, node, doc,
+               i = 0,
+               l = collection.length,
+               iNoClone = l - 1,
+               value = args[ 0 ],
+               isFunction = jQuery.isFunction( value );
+
+       // We can't cloneNode fragments that contain checked, in WebKit
+       if ( isFunction ||
+                       ( l > 1 && typeof value === "string" &&
+                               !support.checkClone && rchecked.test( value ) ) ) {
+               return collection.each( function( index ) {
+                       var self = collection.eq( index );
+                       if ( isFunction ) {
+                               args[ 0 ] = value.call( this, index, self.html() );
+                       }
+                       domManip( self, args, callback, ignored );
+               } );
+       }
+
+       if ( l ) {
+               fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
+               first = fragment.firstChild;
+
+               if ( fragment.childNodes.length === 1 ) {
+                       fragment = first;
+               }
+
+               // Require either new content or an interest in ignored elements to invoke the callback
+               if ( first || ignored ) {
+                       scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+                       hasScripts = scripts.length;
+
+                       // Use the original fragment for the last item
+                       // instead of the first because it can end up
+                       // being emptied incorrectly in certain situations (#8070).
+                       for ( ; i < l; i++ ) {
+                               node = fragment;
+
+                               if ( i !== iNoClone ) {
+                                       node = jQuery.clone( node, true, true );
+
+                                       // Keep references to cloned scripts for later restoration
+                                       if ( hasScripts ) {
+
+                                               // Support: Android <=4.0 only, PhantomJS 1 only
+                                               // push.apply(_, arraylike) throws on ancient WebKit
+                                               jQuery.merge( scripts, getAll( node, "script" ) );
+                                       }
+                               }
+
+                               callback.call( collection[ i ], node, i );
+                       }
+
+                       if ( hasScripts ) {
+                               doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+                               // Reenable scripts
+                               jQuery.map( scripts, restoreScript );
+
+                               // Evaluate executable scripts on first document insertion
+                               for ( i = 0; i < hasScripts; i++ ) {
+                                       node = scripts[ i ];
+                                       if ( rscriptType.test( node.type || "" ) &&
+                                               !dataPriv.access( node, "globalEval" ) &&
+                                               jQuery.contains( doc, node ) ) {
+
+                                               if ( node.src ) {
+
+                                                       // Optional AJAX dependency, but won't run scripts if not present
+                                                       if ( jQuery._evalUrl ) {
+                                                               jQuery._evalUrl( node.src );
+                                                       }
+                                               } else {
+                                                       DOMEval( node.textContent.replace( rcleanScript, "" ), doc );
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       return collection;
+}
+
+function remove( elem, selector, keepData ) {
+       var node,
+               nodes = selector ? jQuery.filter( selector, elem ) : elem,
+               i = 0;
+
+       for ( ; ( node = nodes[ i ] ) != null; i++ ) {
+               if ( !keepData && node.nodeType === 1 ) {
+                       jQuery.cleanData( getAll( node ) );
+               }
+
+               if ( node.parentNode ) {
+                       if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
+                               setGlobalEval( getAll( node, "script" ) );
+                       }
+                       node.parentNode.removeChild( node );
+               }
+       }
+
+       return elem;
+}
+
+jQuery.extend( {
+       htmlPrefilter: function( html ) {
+               return html.replace( rxhtmlTag, "<$1></$2>" );
+       },
+
+       clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+               var i, l, srcElements, destElements,
+                       clone = elem.cloneNode( true ),
+                       inPage = jQuery.contains( elem.ownerDocument, elem );
+
+               // Fix IE cloning issues
+               if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
+                               !jQuery.isXMLDoc( elem ) ) {
+
+                       // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
+                       destElements = getAll( clone );
+                       srcElements = getAll( elem );
+
+                       for ( i = 0, l = srcElements.length; i < l; i++ ) {
+                               fixInput( srcElements[ i ], destElements[ i ] );
+                       }
+               }
+
+               // Copy the events from the original to the clone
+               if ( dataAndEvents ) {
+                       if ( deepDataAndEvents ) {
+                               srcElements = srcElements || getAll( elem );
+                               destElements = destElements || getAll( clone );
+
+                               for ( i = 0, l = srcElements.length; i < l; i++ ) {
+                                       cloneCopyEvent( srcElements[ i ], destElements[ i ] );
+                               }
+                       } else {
+                               cloneCopyEvent( elem, clone );
+                       }
+               }
+
+               // Preserve script evaluation history
+               destElements = getAll( clone, "script" );
+               if ( destElements.length > 0 ) {
+                       setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+               }
+
+               // Return the cloned set
+               return clone;
+       },
+
+       cleanData: function( elems ) {
+               var data, elem, type,
+                       special = jQuery.event.special,
+                       i = 0;
+
+               for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
+                       if ( acceptData( elem ) ) {
+                               if ( ( data = elem[ dataPriv.expando ] ) ) {
+                                       if ( data.events ) {
+                                               for ( type in data.events ) {
+                                                       if ( special[ type ] ) {
+                                                               jQuery.event.remove( elem, type );
+
+                                                       // This is a shortcut to avoid jQuery.event.remove's overhead
+                                                       } else {
+                                                               jQuery.removeEvent( elem, type, data.handle );
+                                                       }
+                                               }
+                                       }
+
+                                       // Support: Chrome <=35 - 45+
+                                       // Assign undefined instead of using delete, see Data#remove
+                                       elem[ dataPriv.expando ] = undefined;
+                               }
+                               if ( elem[ dataUser.expando ] ) {
+
+                                       // Support: Chrome <=35 - 45+
+                                       // Assign undefined instead of using delete, see Data#remove
+                                       elem[ dataUser.expando ] = undefined;
+                               }
+                       }
+               }
+       }
+} );
+
+jQuery.fn.extend( {
+       detach: function( selector ) {
+               return remove( this, selector, true );
+       },
+
+       remove: function( selector ) {
+               return remove( this, selector );
+       },
+
+       text: function( value ) {
+               return access( this, function( value ) {
+                       return value === undefined ?
+                               jQuery.text( this ) :
+                               this.empty().each( function() {
+                                       if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+                                               this.textContent = value;
+                                       }
+                               } );
+               }, null, value, arguments.length );
+       },
+
+       append: function() {
+               return domManip( this, arguments, function( elem ) {
+                       if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+                               var target = manipulationTarget( this, elem );
+                               target.appendChild( elem );
+                       }
+               } );
+       },
+
+       prepend: function() {
+               return domManip( this, arguments, function( elem ) {
+                       if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+                               var target = manipulationTarget( this, elem );
+                               target.insertBefore( elem, target.firstChild );
+                       }
+               } );
+       },
+
+       before: function() {
+               return domManip( this, arguments, function( elem ) {
+                       if ( this.parentNode ) {
+                               this.parentNode.insertBefore( elem, this );
+                       }
+               } );
+       },
+
+       after: function() {
+               return domManip( this, arguments, function( elem ) {
+                       if ( this.parentNode ) {
+                               this.parentNode.insertBefore( elem, this.nextSibling );
+                       }
+               } );
+       },
+
+       empty: function() {
+               var elem,
+                       i = 0;
+
+               for ( ; ( elem = this[ i ] ) != null; i++ ) {
+                       if ( elem.nodeType === 1 ) {
+
+                               // Prevent memory leaks
+                               jQuery.cleanData( getAll( elem, false ) );
+
+                               // Remove any remaining nodes
+                               elem.textContent = "";
+                       }
+               }
+
+               return this;
+       },
+
+       clone: function( dataAndEvents, deepDataAndEvents ) {
+               dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+               deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+               return this.map( function() {
+                       return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+               } );
+       },
+
+       html: function( value ) {
+               return access( this, function( value ) {
+                       var elem = this[ 0 ] || {},
+                               i = 0,
+                               l = this.length;
+
+                       if ( value === undefined && elem.nodeType === 1 ) {
+                               return elem.innerHTML;
+                       }
+
+                       // See if we can take a shortcut and just use innerHTML
+                       if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+                               !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
+
+                               value = jQuery.htmlPrefilter( value );
+
+                               try {
+                                       for ( ; i < l; i++ ) {
+                                               elem = this[ i ] || {};
+
+                                               // Remove element nodes and prevent memory leaks
+                                               if ( elem.nodeType === 1 ) {
+                                                       jQuery.cleanData( getAll( elem, false ) );
+                                                       elem.innerHTML = value;
+                                               }
+                                       }
+
+                                       elem = 0;
+
+                               // If using innerHTML throws an exception, use the fallback method
+                               } catch ( e ) {}
+                       }
+
+                       if ( elem ) {
+                               this.empty().append( value );
+                       }
+               }, null, value, arguments.length );
+       },
+
+       replaceWith: function() {
+               var ignored = [];
+
+               // Make the changes, replacing each non-ignored context element with the new content
+               return domManip( this, arguments, function( elem ) {
+                       var parent = this.parentNode;
+
+                       if ( jQuery.inArray( this, ignored ) < 0 ) {
+                               jQuery.cleanData( getAll( this ) );
+                               if ( parent ) {
+                                       parent.replaceChild( elem, this );
+                               }
+                       }
+
+               // Force callback invocation
+               }, ignored );
+       }
+} );
+
+jQuery.each( {
+       appendTo: "append",
+       prependTo: "prepend",
+       insertBefore: "before",
+       insertAfter: "after",
+       replaceAll: "replaceWith"
+}, function( name, original ) {
+       jQuery.fn[ name ] = function( selector ) {
+               var elems,
+                       ret = [],
+                       insert = jQuery( selector ),
+                       last = insert.length - 1,
+                       i = 0;
+
+               for ( ; i <= last; i++ ) {
+                       elems = i === last ? this : this.clone( true );
+                       jQuery( insert[ i ] )[ original ]( elems );
+
+                       // Support: Android <=4.0 only, PhantomJS 1 only
+                       // .get() because push.apply(_, arraylike) throws on ancient WebKit
+                       push.apply( ret, elems.get() );
+               }
+
+               return this.pushStack( ret );
+       };
+} );
+var rmargin = ( /^margin/ );
+
+var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
+
+var getStyles = function( elem ) {
+
+               // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
+               // IE throws on elements created in popups
+               // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
+               var view = elem.ownerDocument.defaultView;
+
+               if ( !view || !view.opener ) {
+                       view = window;
+               }
+
+               return view.getComputedStyle( elem );
+       };
+
+
+
+( function() {
+
+       // Executing both pixelPosition & boxSizingReliable tests require only one layout
+       // so they're executed at the same time to save the second computation.
+       function computeStyleTests() {
+
+               // This is a singleton, we need to execute it only once
+               if ( !div ) {
+                       return;
+               }
+
+               div.style.cssText =
+                       "box-sizing:border-box;" +
+                       "position:relative;display:block;" +
+                       "margin:auto;border:1px;padding:1px;" +
+                       "top:1%;width:50%";
+               div.innerHTML = "";
+               documentElement.appendChild( container );
+
+               var divStyle = window.getComputedStyle( div );
+               pixelPositionVal = divStyle.top !== "1%";
+
+               // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
+               reliableMarginLeftVal = divStyle.marginLeft === "2px";
+               boxSizingReliableVal = divStyle.width === "4px";
+
+               // Support: Android 4.0 - 4.3 only
+               // Some styles come back with percentage values, even though they shouldn't
+               div.style.marginRight = "50%";
+               pixelMarginRightVal = divStyle.marginRight === "4px";
+
+               documentElement.removeChild( container );
+
+               // Nullify the div so it wouldn't be stored in the memory and
+               // it will also be a sign that checks already performed
+               div = null;
+       }
+
+       var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
+               container = document.createElement( "div" ),
+               div = document.createElement( "div" );
+
+       // Finish early in limited (non-browser) environments
+       if ( !div.style ) {
+               return;
+       }
+
+       // Support: IE <=9 - 11 only
+       // Style of cloned element affects source element cloned (#8908)
+       div.style.backgroundClip = "content-box";
+       div.cloneNode( true ).style.backgroundClip = "";
+       support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+       container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
+               "padding:0;margin-top:1px;position:absolute";
+       container.appendChild( div );
+
+       jQuery.extend( support, {
+               pixelPosition: function() {
+                       computeStyleTests();
+                       return pixelPositionVal;
+               },
+               boxSizingReliable: function() {
+                       computeStyleTests();
+                       return boxSizingReliableVal;
+               },
+               pixelMarginRight: function() {
+                       computeStyleTests();
+                       return pixelMarginRightVal;
+               },
+               reliableMarginLeft: function() {
+                       computeStyleTests();
+                       return reliableMarginLeftVal;
+               }
+       } );
+} )();
+
+
+function curCSS( elem, name, computed ) {
+       var width, minWidth, maxWidth, ret,
+
+               // Support: Firefox 51+
+               // Retrieving style before computed somehow
+               // fixes an issue with getting wrong values
+               // on detached elements
+               style = elem.style;
+
+       computed = computed || getStyles( elem );
+
+       // getPropertyValue is needed for:
+       //   .css('filter') (IE 9 only, #12537)
+       //   .css('--customProperty) (#3144)
+       if ( computed ) {
+               ret = computed.getPropertyValue( name ) || computed[ name ];
+
+               if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+                       ret = jQuery.style( elem, name );
+               }
+
+               // A tribute to the "awesome hack by Dean Edwards"
+               // Android Browser returns percentage for some values,
+               // but width seems to be reliably pixels.
+               // This is against the CSSOM draft spec:
+               // https://drafts.csswg.org/cssom/#resolved-values
+               if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
+
+                       // Remember the original values
+                       width = style.width;
+                       minWidth = style.minWidth;
+                       maxWidth = style.maxWidth;
+
+                       // Put in the new values to get a computed value out
+                       style.minWidth = style.maxWidth = style.width = ret;
+                       ret = computed.width;
+
+                       // Revert the changed values
+                       style.width = width;
+                       style.minWidth = minWidth;
+                       style.maxWidth = maxWidth;
+               }
+       }
+
+       return ret !== undefined ?
+
+               // Support: IE <=9 - 11 only
+               // IE returns zIndex value as an integer.
+               ret + "" :
+               ret;
+}
+
+
+function addGetHookIf( conditionFn, hookFn ) {
+
+       // Define the hook, we'll check on the first run if it's really needed.
+       return {
+               get: function() {
+                       if ( conditionFn() ) {
+
+                               // Hook not needed (or it's not possible to use it due
+                               // to missing dependency), remove it.
+                               delete this.get;
+                               return;
+                       }
+
+                       // Hook needed; redefine it so that the support test is not executed again.
+                       return ( this.get = hookFn ).apply( this, arguments );
+               }
+       };
+}
+
+
+var
+
+       // Swappable if display is none or starts with table
+       // except "table", "table-cell", or "table-caption"
+       // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+       rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+       rcustomProp = /^--/,
+       cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+       cssNormalTransform = {
+               letterSpacing: "0",
+               fontWeight: "400"
+       },
+
+       cssPrefixes = [ "Webkit", "Moz", "ms" ],
+       emptyStyle = document.createElement( "div" ).style;
+
+// Return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( name ) {
+
+       // Shortcut for names that are not vendor prefixed
+       if ( name in emptyStyle ) {
+               return name;
+       }
+
+       // Check for vendor prefixed names
+       var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
+               i = cssPrefixes.length;
+
+       while ( i-- ) {
+               name = cssPrefixes[ i ] + capName;
+               if ( name in emptyStyle ) {
+                       return name;
+               }
+       }
+}
+
+// Return a property mapped along what jQuery.cssProps suggests or to
+// a vendor prefixed property.
+function finalPropName( name ) {
+       var ret = jQuery.cssProps[ name ];
+       if ( !ret ) {
+               ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
+       }
+       return ret;
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+
+       // Any relative (+/-) values have already been
+       // normalized at this point
+       var matches = rcssNum.exec( value );
+       return matches ?
+
+               // Guard against undefined "subtract", e.g., when used as in cssHooks
+               Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
+               value;
+}
+
+function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
+       var i,
+               val = 0;
+
+       // If we already have the right measurement, avoid augmentation
+       if ( extra === ( isBorderBox ? "border" : "content" ) ) {
+               i = 4;
+
+       // Otherwise initialize for horizontal or vertical properties
+       } else {
+               i = name === "width" ? 1 : 0;
+       }
+
+       for ( ; i < 4; i += 2 ) {
+
+               // Both box models exclude margin, so add it if we want it
+               if ( extra === "margin" ) {
+                       val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
+               }
+
+               if ( isBorderBox ) {
+
+                       // border-box includes padding, so remove it if we want content
+                       if ( extra === "content" ) {
+                               val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+                       }
+
+                       // At this point, extra isn't border nor margin, so remove border
+                       if ( extra !== "margin" ) {
+                               val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+                       }
+               } else {
+
+                       // At this point, extra isn't content, so add padding
+                       val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+                       // At this point, extra isn't content nor padding, so add border
+                       if ( extra !== "padding" ) {
+                               val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+                       }
+               }
+       }
+
+       return val;
+}
+
+function getWidthOrHeight( elem, name, extra ) {
+
+       // Start with computed style
+       var valueIsBorderBox,
+               styles = getStyles( elem ),
+               val = curCSS( elem, name, styles ),
+               isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
+
+       // Computed unit is not pixels. Stop here and return.
+       if ( rnumnonpx.test( val ) ) {
+               return val;
+       }
+
+       // Check for style in case a browser which returns unreliable values
+       // for getComputedStyle silently falls back to the reliable elem.style
+       valueIsBorderBox = isBorderBox &&
+               ( support.boxSizingReliable() || val === elem.style[ name ] );
+
+       // Fall back to offsetWidth/Height when value is "auto"
+       // This happens for inline elements with no explicit setting (gh-3571)
+       if ( val === "auto" ) {
+               val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ];
+       }
+
+       // Normalize "", auto, and prepare for extra
+       val = parseFloat( val ) || 0;
+
+       // Use the active box-sizing model to add/subtract irrelevant styles
+       return ( val +
+               augmentWidthOrHeight(
+                       elem,
+                       name,
+                       extra || ( isBorderBox ? "border" : "content" ),
+                       valueIsBorderBox,
+                       styles
+               )
+       ) + "px";
+}
+
+jQuery.extend( {
+
+       // Add in style property hooks for overriding the default
+       // behavior of getting and setting a style property
+       cssHooks: {
+               opacity: {
+                       get: function( elem, computed ) {
+                               if ( computed ) {
+
+                                       // We should always get a number back from opacity
+                                       var ret = curCSS( elem, "opacity" );
+                                       return ret === "" ? "1" : ret;
+                               }
+                       }
+               }
+       },
+
+       // Don't automatically add "px" to these possibly-unitless properties
+       cssNumber: {
+               "animationIterationCount": true,
+               "columnCount": true,
+               "fillOpacity": true,
+               "flexGrow": true,
+               "flexShrink": true,
+               "fontWeight": true,
+               "lineHeight": true,
+               "opacity": true,
+               "order": true,
+               "orphans": true,
+               "widows": true,
+               "zIndex": true,
+               "zoom": true
+       },
+
+       // Add in properties whose names you wish to fix before
+       // setting or getting the value
+       cssProps: {
+               "float": "cssFloat"
+       },
+
+       // Get and set the style property on a DOM Node
+       style: function( elem, name, value, extra ) {
+
+               // Don't set styles on text and comment nodes
+               if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+                       return;
+               }
+
+               // Make sure that we're working with the right name
+               var ret, type, hooks,
+                       origName = jQuery.camelCase( name ),
+                       isCustomProp = rcustomProp.test( name ),
+                       style = elem.style;
+
+               // Make sure that we're working with the right name. We don't
+               // want to query the value if it is a CSS custom property
+               // since they are user-defined.
+               if ( !isCustomProp ) {
+                       name = finalPropName( origName );
+               }
+
+               // Gets hook for the prefixed version, then unprefixed version
+               hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+               // Check if we're setting a value
+               if ( value !== undefined ) {
+                       type = typeof value;
+
+                       // Convert "+=" or "-=" to relative numbers (#7345)
+                       if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
+                               value = adjustCSS( elem, name, ret );
+
+                               // Fixes bug #9237
+                               type = "number";
+                       }
+
+                       // Make sure that null and NaN values aren't set (#7116)
+                       if ( value == null || value !== value ) {
+                               return;
+                       }
+
+                       // If a number was passed in, add the unit (except for certain CSS properties)
+                       if ( type === "number" ) {
+                               value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
+                       }
+
+                       // background-* props affect original clone's values
+                       if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
+                               style[ name ] = "inherit";
+                       }
+
+                       // If a hook was provided, use that value, otherwise just set the specified value
+                       if ( !hooks || !( "set" in hooks ) ||
+                               ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
+
+                               if ( isCustomProp ) {
+                                       style.setProperty( name, value );
+                               } else {
+                                       style[ name ] = value;
+                               }
+                       }
+
+               } else {
+
+                       // If a hook was provided get the non-computed value from there
+                       if ( hooks && "get" in hooks &&
+                               ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
+
+                               return ret;
+                       }
+
+                       // Otherwise just get the value from the style object
+                       return style[ name ];
+               }
+       },
+
+       css: function( elem, name, extra, styles ) {
+               var val, num, hooks,
+                       origName = jQuery.camelCase( name ),
+                       isCustomProp = rcustomProp.test( name );
+
+               // Make sure that we're working with the right name. We don't
+               // want to modify the value if it is a CSS custom property
+               // since they are user-defined.
+               if ( !isCustomProp ) {
+                       name = finalPropName( origName );
+               }
+
+               // Try prefixed name followed by the unprefixed name
+               hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+               // If a hook was provided get the computed value from there
+               if ( hooks && "get" in hooks ) {
+                       val = hooks.get( elem, true, extra );
+               }
+
+               // Otherwise, if a way to get the computed value exists, use that
+               if ( val === undefined ) {
+                       val = curCSS( elem, name, styles );
+               }
+
+               // Convert "normal" to computed value
+               if ( val === "normal" && name in cssNormalTransform ) {
+                       val = cssNormalTransform[ name ];
+               }
+
+               // Make numeric if forced or a qualifier was provided and val looks numeric
+               if ( extra === "" || extra ) {
+                       num = parseFloat( val );
+                       return extra === true || isFinite( num ) ? num || 0 : val;
+               }
+
+               return val;
+       }
+} );
+
+jQuery.each( [ "height", "width" ], function( i, name ) {
+       jQuery.cssHooks[ name ] = {
+               get: function( elem, computed, extra ) {
+                       if ( computed ) {
+
+                               // Certain elements can have dimension info if we invisibly show them
+                               // but it must have a current display style that would benefit
+                               return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
+
+                                       // Support: Safari 8+
+                                       // Table columns in Safari have non-zero offsetWidth & zero
+                                       // getBoundingClientRect().width unless display is changed.
+                                       // Support: IE <=11 only
+                                       // Running getBoundingClientRect on a disconnected node
+                                       // in IE throws an error.
+                                       ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
+                                               swap( elem, cssShow, function() {
+                                                       return getWidthOrHeight( elem, name, extra );
+                                               } ) :
+                                               getWidthOrHeight( elem, name, extra );
+                       }
+               },
+
+               set: function( elem, value, extra ) {
+                       var matches,
+                               styles = extra && getStyles( elem ),
+                               subtract = extra && augmentWidthOrHeight(
+                                       elem,
+                                       name,
+                                       extra,
+                                       jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+                                       styles
+                               );
+
+                       // Convert to pixels if value adjustment is needed
+                       if ( subtract && ( matches = rcssNum.exec( value ) ) &&
+                               ( matches[ 3 ] || "px" ) !== "px" ) {
+
+                               elem.style[ name ] = value;
+                               value = jQuery.css( elem, name );
+                       }
+
+                       return setPositiveNumber( elem, value, subtract );
+               }
+       };
+} );
+
+jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
+       function( elem, computed ) {
+               if ( computed ) {
+                       return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
+                               elem.getBoundingClientRect().left -
+                                       swap( elem, { marginLeft: 0 }, function() {
+                                               return elem.getBoundingClientRect().left;
+                                       } )
+                               ) + "px";
+               }
+       }
+);
+
+// These hooks are used by animate to expand properties
+jQuery.each( {
+       margin: "",
+       padding: "",
+       border: "Width"
+}, function( prefix, suffix ) {
+       jQuery.cssHooks[ prefix + suffix ] = {
+               expand: function( value ) {
+                       var i = 0,
+                               expanded = {},
+
+                               // Assumes a single number if not a string
+                               parts = typeof value === "string" ? value.split( " " ) : [ value ];
+
+                       for ( ; i < 4; i++ ) {
+                               expanded[ prefix + cssExpand[ i ] + suffix ] =
+                                       parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+                       }
+
+                       return expanded;
+               }
+       };
+
+       if ( !rmargin.test( prefix ) ) {
+               jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+       }
+} );
+
+jQuery.fn.extend( {
+       css: function( name, value ) {
+               return access( this, function( elem, name, value ) {
+                       var styles, len,
+                               map = {},
+                               i = 0;
+
+                       if ( Array.isArray( name ) ) {
+                               styles = getStyles( elem );
+                               len = name.length;
+
+                               for ( ; i < len; i++ ) {
+                                       map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+                               }
+
+                               return map;
+                       }
+
+                       return value !== undefined ?
+                               jQuery.style( elem, name, value ) :
+                               jQuery.css( elem, name );
+               }, name, value, arguments.length > 1 );
+       }
+} );
+
+
+function Tween( elem, options, prop, end, easing ) {
+       return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+       constructor: Tween,
+       init: function( elem, options, prop, end, easing, unit ) {
+               this.elem = elem;
+               this.prop = prop;
+               this.easing = easing || jQuery.easing._default;
+               this.options = options;
+               this.start = this.now = this.cur();
+               this.end = end;
+               this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+       },
+       cur: function() {
+               var hooks = Tween.propHooks[ this.prop ];
+
+               return hooks && hooks.get ?
+                       hooks.get( this ) :
+                       Tween.propHooks._default.get( this );
+       },
+       run: function( percent ) {
+               var eased,
+                       hooks = Tween.propHooks[ this.prop ];
+
+               if ( this.options.duration ) {
+                       this.pos = eased = jQuery.easing[ this.easing ](
+                               percent, this.options.duration * percent, 0, 1, this.options.duration
+                       );
+               } else {
+                       this.pos = eased = percent;
+               }
+               this.now = ( this.end - this.start ) * eased + this.start;
+
+               if ( this.options.step ) {
+                       this.options.step.call( this.elem, this.now, this );
+               }
+
+               if ( hooks && hooks.set ) {
+                       hooks.set( this );
+               } else {
+                       Tween.propHooks._default.set( this );
+               }
+               return this;
+       }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+       _default: {
+               get: function( tween ) {
+                       var result;
+
+                       // Use a property on the element directly when it is not a DOM element,
+                       // or when there is no matching style property that exists.
+                       if ( tween.elem.nodeType !== 1 ||
+                               tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
+                               return tween.elem[ tween.prop ];
+                       }
+
+                       // Passing an empty string as a 3rd parameter to .css will automatically
+                       // attempt a parseFloat and fallback to a string if the parse fails.
+                       // Simple values such as "10px" are parsed to Float;
+                       // complex values such as "rotate(1rad)" are returned as-is.
+                       result = jQuery.css( tween.elem, tween.prop, "" );
+
+                       // Empty strings, null, undefined and "auto" are converted to 0.
+                       return !result || result === "auto" ? 0 : result;
+               },
+               set: function( tween ) {
+
+                       // Use step hook for back compat.
+                       // Use cssHook if its there.
+                       // Use .style if available and use plain properties where available.
+                       if ( jQuery.fx.step[ tween.prop ] ) {
+                               jQuery.fx.step[ tween.prop ]( tween );
+                       } else if ( tween.elem.nodeType === 1 &&
+                               ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
+                                       jQuery.cssHooks[ tween.prop ] ) ) {
+                               jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+                       } else {
+                               tween.elem[ tween.prop ] = tween.now;
+                       }
+               }
+       }
+};
+
+// Support: IE <=9 only
+// Panic based approach to setting things on disconnected nodes
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+       set: function( tween ) {
+               if ( tween.elem.nodeType && tween.elem.parentNode ) {
+                       tween.elem[ tween.prop ] = tween.now;
+               }
+       }
+};
+
+jQuery.easing = {
+       linear: function( p ) {
+               return p;
+       },
+       swing: function( p ) {
+               return 0.5 - Math.cos( p * Math.PI ) / 2;
+       },
+       _default: "swing"
+};
+
+jQuery.fx = Tween.prototype.init;
+
+// Back compat <1.8 extension point
+jQuery.fx.step = {};
+
+
+
+
+var
+       fxNow, inProgress,
+       rfxtypes = /^(?:toggle|show|hide)$/,
+       rrun = /queueHooks$/;
+
+function schedule() {
+       if ( inProgress ) {
+               if ( document.hidden === false && window.requestAnimationFrame ) {
+                       window.requestAnimationFrame( schedule );
+               } else {
+                       window.setTimeout( schedule, jQuery.fx.interval );
+               }
+
+               jQuery.fx.tick();
+       }
+}
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+       window.setTimeout( function() {
+               fxNow = undefined;
+       } );
+       return ( fxNow = jQuery.now() );
+}
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+       var which,
+               i = 0,
+               attrs = { height: type };
+
+       // If we include width, step value is 1 to do all cssExpand values,
+       // otherwise step value is 2 to skip over Left and Right
+       includeWidth = includeWidth ? 1 : 0;
+       for ( ; i < 4; i += 2 - includeWidth ) {
+               which = cssExpand[ i ];
+               attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+       }
+
+       if ( includeWidth ) {
+               attrs.opacity = attrs.width = type;
+       }
+
+       return attrs;
+}
+
+function createTween( value, prop, animation ) {
+       var tween,
+               collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
+               index = 0,
+               length = collection.length;
+       for ( ; index < length; index++ ) {
+               if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
+
+                       // We're done with this property
+                       return tween;
+               }
+       }
+}
+
+function defaultPrefilter( elem, props, opts ) {
+       var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
+               isBox = "width" in props || "height" in props,
+               anim = this,
+               orig = {},
+               style = elem.style,
+               hidden = elem.nodeType && isHiddenWithinTree( elem ),
+               dataShow = dataPriv.get( elem, "fxshow" );
+
+       // Queue-skipping animations hijack the fx hooks
+       if ( !opts.queue ) {
+               hooks = jQuery._queueHooks( elem, "fx" );
+               if ( hooks.unqueued == null ) {
+                       hooks.unqueued = 0;
+                       oldfire = hooks.empty.fire;
+                       hooks.empty.fire = function() {
+                               if ( !hooks.unqueued ) {
+                                       oldfire();
+                               }
+                       };
+               }
+               hooks.unqueued++;
+
+               anim.always( function() {
+
+                       // Ensure the complete handler is called before this completes
+                       anim.always( function() {
+                               hooks.unqueued--;
+                               if ( !jQuery.queue( elem, "fx" ).length ) {
+                                       hooks.empty.fire();
+                               }
+                       } );
+               } );
+       }
+
+       // Detect show/hide animations
+       for ( prop in props ) {
+               value = props[ prop ];
+               if ( rfxtypes.test( value ) ) {
+                       delete props[ prop ];
+                       toggle = toggle || value === "toggle";
+                       if ( value === ( hidden ? "hide" : "show" ) ) {
+
+                               // Pretend to be hidden if this is a "show" and
+                               // there is still data from a stopped show/hide
+                               if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
+                                       hidden = true;
+
+                               // Ignore all other no-op show/hide data
+                               } else {
+                                       continue;
+                               }
+                       }
+                       orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+               }
+       }
+
+       // Bail out if this is a no-op like .hide().hide()
+       propTween = !jQuery.isEmptyObject( props );
+       if ( !propTween && jQuery.isEmptyObject( orig ) ) {
+               return;
+       }
+
+       // Restrict "overflow" and "display" styles during box animations
+       if ( isBox && elem.nodeType === 1 ) {
+
+               // Support: IE <=9 - 11, Edge 12 - 13
+               // Record all 3 overflow attributes because IE does not infer the shorthand
+               // from identically-valued overflowX and overflowY
+               opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+               // Identify a display type, preferring old show/hide data over the CSS cascade
+               restoreDisplay = dataShow && dataShow.display;
+               if ( restoreDisplay == null ) {
+                       restoreDisplay = dataPriv.get( elem, "display" );
+               }
+               display = jQuery.css( elem, "display" );
+               if ( display === "none" ) {
+                       if ( restoreDisplay ) {
+                               display = restoreDisplay;
+                       } else {
+
+                               // Get nonempty value(s) by temporarily forcing visibility
+                               showHide( [ elem ], true );
+                               restoreDisplay = elem.style.display || restoreDisplay;
+                               display = jQuery.css( elem, "display" );
+                               showHide( [ elem ] );
+                       }
+               }
+
+               // Animate inline elements as inline-block
+               if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
+                       if ( jQuery.css( elem, "float" ) === "none" ) {
+
+                               // Restore the original display value at the end of pure show/hide animations
+                               if ( !propTween ) {
+                                       anim.done( function() {
+                                               style.display = restoreDisplay;
+                                       } );
+                                       if ( restoreDisplay == null ) {
+                                               display = style.display;
+                                               restoreDisplay = display === "none" ? "" : display;
+                                       }
+                               }
+                               style.display = "inline-block";
+                       }
+               }
+       }
+
+       if ( opts.overflow ) {
+               style.overflow = "hidden";
+               anim.always( function() {
+                       style.overflow = opts.overflow[ 0 ];
+                       style.overflowX = opts.overflow[ 1 ];
+                       style.overflowY = opts.overflow[ 2 ];
+               } );
+       }
+
+       // Implement show/hide animations
+       propTween = false;
+       for ( prop in orig ) {
+
+               // General show/hide setup for this element animation
+               if ( !propTween ) {
+                       if ( dataShow ) {
+                               if ( "hidden" in dataShow ) {
+                                       hidden = dataShow.hidden;
+                               }
+                       } else {
+                               dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
+                       }
+
+                       // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
+                       if ( toggle ) {
+                               dataShow.hidden = !hidden;
+                       }
+
+                       // Show elements before animating them
+                       if ( hidden ) {
+                               showHide( [ elem ], true );
+                       }
+
+                       /* eslint-disable no-loop-func */
+
+                       anim.done( function() {
+
+                       /* eslint-enable no-loop-func */
+
+                               // The final step of a "hide" animation is actually hiding the element
+                               if ( !hidden ) {
+                                       showHide( [ elem ] );
+                               }
+                               dataPriv.remove( elem, "fxshow" );
+                               for ( prop in orig ) {
+                                       jQuery.style( elem, prop, orig[ prop ] );
+                               }
+                       } );
+               }
+
+               // Per-property setup
+               propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+               if ( !( prop in dataShow ) ) {
+                       dataShow[ prop ] = propTween.start;
+                       if ( hidden ) {
+                               propTween.end = propTween.start;
+                               propTween.start = 0;
+                       }
+               }
+       }
+}
+
+function propFilter( props, specialEasing ) {
+       var index, name, easing, value, hooks;
+
+       // camelCase, specialEasing and expand cssHook pass
+       for ( index in props ) {
+               name = jQuery.camelCase( index );
+               easing = specialEasing[ name ];
+               value = props[ index ];
+               if ( Array.isArray( value ) ) {
+                       easing = value[ 1 ];
+                       value = props[ index ] = value[ 0 ];
+               }
+
+               if ( index !== name ) {
+                       props[ name ] = value;
+                       delete props[ index ];
+               }
+
+               hooks = jQuery.cssHooks[ name ];
+               if ( hooks && "expand" in hooks ) {
+                       value = hooks.expand( value );
+                       delete props[ name ];
+
+                       // Not quite $.extend, this won't overwrite existing keys.
+                       // Reusing 'index' because we have the correct "name"
+                       for ( index in value ) {
+                               if ( !( index in props ) ) {
+                                       props[ index ] = value[ index ];
+                                       specialEasing[ index ] = easing;
+                               }
+                       }
+               } else {
+                       specialEasing[ name ] = easing;
+               }
+       }
+}
+
+function Animation( elem, properties, options ) {
+       var result,
+               stopped,
+               index = 0,
+               length = Animation.prefilters.length,
+               deferred = jQuery.Deferred().always( function() {
+
+                       // Don't match elem in the :animated selector
+                       delete tick.elem;
+               } ),
+               tick = function() {
+                       if ( stopped ) {
+                               return false;
+                       }
+                       var currentTime = fxNow || createFxNow(),
+                               remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+
+                               // Support: Android 2.3 only
+                               // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
+                               temp = remaining / animation.duration || 0,
+                               percent = 1 - temp,
+                               index = 0,
+                               length = animation.tweens.length;
+
+                       for ( ; index < length; index++ ) {
+                               animation.tweens[ index ].run( percent );
+                       }
+
+                       deferred.notifyWith( elem, [ animation, percent, remaining ] );
+
+                       // If there's more to do, yield
+                       if ( percent < 1 && length ) {
+                               return remaining;
+                       }
+
+                       // If this was an empty animation, synthesize a final progress notification
+                       if ( !length ) {
+                               deferred.notifyWith( elem, [ animation, 1, 0 ] );
+                       }
+
+                       // Resolve the animation and report its conclusion
+                       deferred.resolveWith( elem, [ animation ] );
+                       return false;
+               },
+               animation = deferred.promise( {
+                       elem: elem,
+                       props: jQuery.extend( {}, properties ),
+                       opts: jQuery.extend( true, {
+                               specialEasing: {},
+                               easing: jQuery.easing._default
+                       }, options ),
+                       originalProperties: properties,
+                       originalOptions: options,
+                       startTime: fxNow || createFxNow(),
+                       duration: options.duration,
+                       tweens: [],
+                       createTween: function( prop, end ) {
+                               var tween = jQuery.Tween( elem, animation.opts, prop, end,
+                                               animation.opts.specialEasing[ prop ] || animation.opts.easing );
+                               animation.tweens.push( tween );
+                               return tween;
+                       },
+                       stop: function( gotoEnd ) {
+                               var index = 0,
+
+                                       // If we are going to the end, we want to run all the tweens
+                                       // otherwise we skip this part
+                                       length = gotoEnd ? animation.tweens.length : 0;
+                               if ( stopped ) {
+                                       return this;
+                               }
+                               stopped = true;
+                               for ( ; index < length; index++ ) {
+                                       animation.tweens[ index ].run( 1 );
+                               }
+
+                               // Resolve when we played the last frame; otherwise, reject
+                               if ( gotoEnd ) {
+                                       deferred.notifyWith( elem, [ animation, 1, 0 ] );
+                                       deferred.resolveWith( elem, [ animation, gotoEnd ] );
+                               } else {
+                                       deferred.rejectWith( elem, [ animation, gotoEnd ] );
+                               }
+                               return this;
+                       }
+               } ),
+               props = animation.props;
+
+       propFilter( props, animation.opts.specialEasing );
+
+       for ( ; index < length; index++ ) {
+               result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
+               if ( result ) {
+                       if ( jQuery.isFunction( result.stop ) ) {
+                               jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
+                                       jQuery.proxy( result.stop, result );
+                       }
+                       return result;
+               }
+       }
+
+       jQuery.map( props, createTween, animation );
+
+       if ( jQuery.isFunction( animation.opts.start ) ) {
+               animation.opts.start.call( elem, animation );
+       }
+
+       // Attach callbacks from options
+       animation
+               .progress( animation.opts.progress )
+               .done( animation.opts.done, animation.opts.complete )
+               .fail( animation.opts.fail )
+               .always( animation.opts.always );
+
+       jQuery.fx.timer(
+               jQuery.extend( tick, {
+                       elem: elem,
+                       anim: animation,
+                       queue: animation.opts.queue
+               } )
+       );
+
+       return animation;
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+       tweeners: {
+               "*": [ function( prop, value ) {
+                       var tween = this.createTween( prop, value );
+                       adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
+                       return tween;
+               } ]
+       },
+
+       tweener: function( props, callback ) {
+               if ( jQuery.isFunction( props ) ) {
+                       callback = props;
+                       props = [ "*" ];
+               } else {
+                       props = props.match( rnothtmlwhite );
+               }
+
+               var prop,
+                       index = 0,
+                       length = props.length;
+
+               for ( ; index < length; index++ ) {
+                       prop = props[ index ];
+                       Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
+                       Animation.tweeners[ prop ].unshift( callback );
+               }
+       },
+
+       prefilters: [ defaultPrefilter ],
+
+       prefilter: function( callback, prepend ) {
+               if ( prepend ) {
+                       Animation.prefilters.unshift( callback );
+               } else {
+                       Animation.prefilters.push( callback );
+               }
+       }
+} );
+
+jQuery.speed = function( speed, easing, fn ) {
+       var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+               complete: fn || !fn && easing ||
+                       jQuery.isFunction( speed ) && speed,
+               duration: speed,
+               easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
+       };
+
+       // Go to the end state if fx are off
+       if ( jQuery.fx.off ) {
+               opt.duration = 0;
+
+       } else {
+               if ( typeof opt.duration !== "number" ) {
+                       if ( opt.duration in jQuery.fx.speeds ) {
+                               opt.duration = jQuery.fx.speeds[ opt.duration ];
+
+                       } else {
+                               opt.duration = jQuery.fx.speeds._default;
+                       }
+               }
+       }
+
+       // Normalize opt.queue - true/undefined/null -> "fx"
+       if ( opt.queue == null || opt.queue === true ) {
+               opt.queue = "fx";
+       }
+
+       // Queueing
+       opt.old = opt.complete;
+
+       opt.complete = function() {
+               if ( jQuery.isFunction( opt.old ) ) {
+                       opt.old.call( this );
+               }
+
+               if ( opt.queue ) {
+                       jQuery.dequeue( this, opt.queue );
+               }
+       };
+
+       return opt;
+};
+
+jQuery.fn.extend( {
+       fadeTo: function( speed, to, easing, callback ) {
+
+               // Show any hidden elements after setting opacity to 0
+               return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
+
+                       // Animate to the value specified
+                       .end().animate( { opacity: to }, speed, easing, callback );
+       },
+       animate: function( prop, speed, easing, callback ) {
+               var empty = jQuery.isEmptyObject( prop ),
+                       optall = jQuery.speed( speed, easing, callback ),
+                       doAnimation = function() {
+
+                               // Operate on a copy of prop so per-property easing won't be lost
+                               var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+                               // Empty animations, or finishing resolves immediately
+                               if ( empty || dataPriv.get( this, "finish" ) ) {
+                                       anim.stop( true );
+                               }
+                       };
+                       doAnimation.finish = doAnimation;
+
+               return empty || optall.queue === false ?
+                       this.each( doAnimation ) :
+                       this.queue( optall.queue, doAnimation );
+       },
+       stop: function( type, clearQueue, gotoEnd ) {
+               var stopQueue = function( hooks ) {
+                       var stop = hooks.stop;
+                       delete hooks.stop;
+                       stop( gotoEnd );
+               };
+
+               if ( typeof type !== "string" ) {
+                       gotoEnd = clearQueue;
+                       clearQueue = type;
+                       type = undefined;
+               }
+               if ( clearQueue && type !== false ) {
+                       this.queue( type || "fx", [] );
+               }
+
+               return this.each( function() {
+                       var dequeue = true,
+                               index = type != null && type + "queueHooks",
+                               timers = jQuery.timers,
+                               data = dataPriv.get( this );
+
+                       if ( index ) {
+                               if ( data[ index ] && data[ index ].stop ) {
+                                       stopQueue( data[ index ] );
+                               }
+                       } else {
+                               for ( index in data ) {
+                                       if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+                                               stopQueue( data[ index ] );
+                                       }
+                               }
+                       }
+
+                       for ( index = timers.length; index--; ) {
+                               if ( timers[ index ].elem === this &&
+                                       ( type == null || timers[ index ].queue === type ) ) {
+
+                                       timers[ index ].anim.stop( gotoEnd );
+                                       dequeue = false;
+                                       timers.splice( index, 1 );
+                               }
+                       }
+
+                       // Start the next in the queue if the last step wasn't forced.
+                       // Timers currently will call their complete callbacks, which
+                       // will dequeue but only if they were gotoEnd.
+                       if ( dequeue || !gotoEnd ) {
+                               jQuery.dequeue( this, type );
+                       }
+               } );
+       },
+       finish: function( type ) {
+               if ( type !== false ) {
+                       type = type || "fx";
+               }
+               return this.each( function() {
+                       var index,
+                               data = dataPriv.get( this ),
+                               queue = data[ type + "queue" ],
+                               hooks = data[ type + "queueHooks" ],
+                               timers = jQuery.timers,
+                               length = queue ? queue.length : 0;
+
+                       // Enable finishing flag on private data
+                       data.finish = true;
+
+                       // Empty the queue first
+                       jQuery.queue( this, type, [] );
+
+                       if ( hooks && hooks.stop ) {
+                               hooks.stop.call( this, true );
+                       }
+
+                       // Look for any active animations, and finish them
+                       for ( index = timers.length; index--; ) {
+                               if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+                                       timers[ index ].anim.stop( true );
+                                       timers.splice( index, 1 );
+                               }
+                       }
+
+                       // Look for any animations in the old queue and finish them
+                       for ( index = 0; index < length; index++ ) {
+                               if ( queue[ index ] && queue[ index ].finish ) {
+                                       queue[ index ].finish.call( this );
+                               }
+                       }
+
+                       // Turn off finishing flag
+                       delete data.finish;
+               } );
+       }
+} );
+
+jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
+       var cssFn = jQuery.fn[ name ];
+       jQuery.fn[ name ] = function( speed, easing, callback ) {
+               return speed == null || typeof speed === "boolean" ?
+                       cssFn.apply( this, arguments ) :
+                       this.animate( genFx( name, true ), speed, easing, callback );
+       };
+} );
+
+// Generate shortcuts for custom animations
+jQuery.each( {
+       slideDown: genFx( "show" ),
+       slideUp: genFx( "hide" ),
+       slideToggle: genFx( "toggle" ),
+       fadeIn: { opacity: "show" },
+       fadeOut: { opacity: "hide" },
+       fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+       jQuery.fn[ name ] = function( speed, easing, callback ) {
+               return this.animate( props, speed, easing, callback );
+       };
+} );
+
+jQuery.timers = [];
+jQuery.fx.tick = function() {
+       var timer,
+               i = 0,
+               timers = jQuery.timers;
+
+       fxNow = jQuery.now();
+
+       for ( ; i < timers.length; i++ ) {
+               timer = timers[ i ];
+
+               // Run the timer and safely remove it when done (allowing for external removal)
+               if ( !timer() && timers[ i ] === timer ) {
+                       timers.splice( i--, 1 );
+               }
+       }
+
+       if ( !timers.length ) {
+               jQuery.fx.stop();
+       }
+       fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+       jQuery.timers.push( timer );
+       jQuery.fx.start();
+};
+
+jQuery.fx.interval = 13;
+jQuery.fx.start = function() {
+       if ( inProgress ) {
+               return;
+       }
+
+       inProgress = true;
+       schedule();
+};
+
+jQuery.fx.stop = function() {
+       inProgress = null;
+};
+
+jQuery.fx.speeds = {
+       slow: 600,
+       fast: 200,
+
+       // Default speed
+       _default: 400
+};
+
+
+// Based off of the plugin by Clint Helfers, with permission.
+// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
+jQuery.fn.delay = function( time, type ) {
+       time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+       type = type || "fx";
+
+       return this.queue( type, function( next, hooks ) {
+               var timeout = window.setTimeout( next, time );
+               hooks.stop = function() {
+                       window.clearTimeout( timeout );
+               };
+       } );
+};
+
+
+( function() {
+       var input = document.createElement( "input" ),
+               select = document.createElement( "select" ),
+               opt = select.appendChild( document.createElement( "option" ) );
+
+       input.type = "checkbox";
+
+       // Support: Android <=4.3 only
+       // Default value for a checkbox should be "on"
+       support.checkOn = input.value !== "";
+
+       // Support: IE <=11 only
+       // Must access selectedIndex to make default options select
+       support.optSelected = opt.selected;
+
+       // Support: IE <=11 only
+       // An input loses its value after becoming a radio
+       input = document.createElement( "input" );
+       input.value = "t";
+       input.type = "radio";
+       support.radioValue = input.value === "t";
+} )();
+
+
+var boolHook,
+       attrHandle = jQuery.expr.attrHandle;
+
+jQuery.fn.extend( {
+       attr: function( name, value ) {
+               return access( this, jQuery.attr, name, value, arguments.length > 1 );
+       },
+
+       removeAttr: function( name ) {
+               return this.each( function() {
+                       jQuery.removeAttr( this, name );
+               } );
+       }
+} );
+
+jQuery.extend( {
+       attr: function( elem, name, value ) {
+               var ret, hooks,
+                       nType = elem.nodeType;
+
+               // Don't get/set attributes on text, comment and attribute nodes
+               if ( nType === 3 || nType === 8 || nType === 2 ) {
+                       return;
+               }
+
+               // Fallback to prop when attributes are not supported
+               if ( typeof elem.getAttribute === "undefined" ) {
+                       return jQuery.prop( elem, name, value );
+               }
+
+               // Attribute hooks are determined by the lowercase version
+               // Grab necessary hook if one is defined
+               if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+                       hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
+                               ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
+               }
+
+               if ( value !== undefined ) {
+                       if ( value === null ) {
+                               jQuery.removeAttr( elem, name );
+                               return;
+                       }
+
+                       if ( hooks && "set" in hooks &&
+                               ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+                               return ret;
+                       }
+
+                       elem.setAttribute( name, value + "" );
+                       return value;
+               }
+
+               if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+                       return ret;
+               }
+
+               ret = jQuery.find.attr( elem, name );
+
+               // Non-existent attributes return null, we normalize to undefined
+               return ret == null ? undefined : ret;
+       },
+
+       attrHooks: {
+               type: {
+                       set: function( elem, value ) {
+                               if ( !support.radioValue && value === "radio" &&
+                                       nodeName( elem, "input" ) ) {
+                                       var val = elem.value;
+                                       elem.setAttribute( "type", value );
+                                       if ( val ) {
+                                               elem.value = val;
+                                       }
+                                       return value;
+                               }
+                       }
+               }
+       },
+
+       removeAttr: function( elem, value ) {
+               var name,
+                       i = 0,
+
+                       // Attribute names can contain non-HTML whitespace characters
+                       // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
+                       attrNames = value && value.match( rnothtmlwhite );
+
+               if ( attrNames && elem.nodeType === 1 ) {
+                       while ( ( name = attrNames[ i++ ] ) ) {
+                               elem.removeAttribute( name );
+                       }
+               }
+       }
+} );
+
+// Hooks for boolean attributes
+boolHook = {
+       set: function( elem, value, name ) {
+               if ( value === false ) {
+
+                       // Remove boolean attributes when set to false
+                       jQuery.removeAttr( elem, name );
+               } else {
+                       elem.setAttribute( name, name );
+               }
+               return name;
+       }
+};
+
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
+       var getter = attrHandle[ name ] || jQuery.find.attr;
+
+       attrHandle[ name ] = function( elem, name, isXML ) {
+               var ret, handle,
+                       lowercaseName = name.toLowerCase();
+
+               if ( !isXML ) {
+
+                       // Avoid an infinite loop by temporarily removing this function from the getter
+                       handle = attrHandle[ lowercaseName ];
+                       attrHandle[ lowercaseName ] = ret;
+                       ret = getter( elem, name, isXML ) != null ?
+                               lowercaseName :
+                               null;
+                       attrHandle[ lowercaseName ] = handle;
+               }
+               return ret;
+       };
+} );
+
+
+
+
+var rfocusable = /^(?:input|select|textarea|button)$/i,
+       rclickable = /^(?:a|area)$/i;
+
+jQuery.fn.extend( {
+       prop: function( name, value ) {
+               return access( this, jQuery.prop, name, value, arguments.length > 1 );
+       },
+
+       removeProp: function( name ) {
+               return this.each( function() {
+                       delete this[ jQuery.propFix[ name ] || name ];
+               } );
+       }
+} );
+
+jQuery.extend( {
+       prop: function( elem, name, value ) {
+               var ret, hooks,
+                       nType = elem.nodeType;
+
+               // Don't get/set properties on text, comment and attribute nodes
+               if ( nType === 3 || nType === 8 || nType === 2 ) {
+                       return;
+               }
+
+               if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+
+                       // Fix name and attach hooks
+                       name = jQuery.propFix[ name ] || name;
+                       hooks = jQuery.propHooks[ name ];
+               }
+
+               if ( value !== undefined ) {
+                       if ( hooks && "set" in hooks &&
+                               ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+                               return ret;
+                       }
+
+                       return ( elem[ name ] = value );
+               }
+
+               if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+                       return ret;
+               }
+
+               return elem[ name ];
+       },
+
+       propHooks: {
+               tabIndex: {
+                       get: function( elem ) {
+
+                               // Support: IE <=9 - 11 only
+                               // elem.tabIndex doesn't always return the
+                               // correct value when it hasn't been explicitly set
+                               // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+                               // Use proper attribute retrieval(#12072)
+                               var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+                               if ( tabindex ) {
+                                       return parseInt( tabindex, 10 );
+                               }
+
+                               if (
+                                       rfocusable.test( elem.nodeName ) ||
+                                       rclickable.test( elem.nodeName ) &&
+                                       elem.href
+                               ) {
+                                       return 0;
+                               }
+
+                               return -1;
+                       }
+               }
+       },
+
+       propFix: {
+               "for": "htmlFor",
+               "class": "className"
+       }
+} );
+
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
+// eslint rule "no-unused-expressions" is disabled for this code
+// since it considers such accessions noop
+if ( !support.optSelected ) {
+       jQuery.propHooks.selected = {
+               get: function( elem ) {
+
+                       /* eslint no-unused-expressions: "off" */
+
+                       var parent = elem.parentNode;
+                       if ( parent && parent.parentNode ) {
+                               parent.parentNode.selectedIndex;
+                       }
+                       return null;
+               },
+               set: function( elem ) {
+
+                       /* eslint no-unused-expressions: "off" */
+
+                       var parent = elem.parentNode;
+                       if ( parent ) {
+                               parent.selectedIndex;
+
+                               if ( parent.parentNode ) {
+                                       parent.parentNode.selectedIndex;
+                               }
+                       }
+               }
+       };
+}
+
+jQuery.each( [
+       "tabIndex",
+       "readOnly",
+       "maxLength",
+       "cellSpacing",
+       "cellPadding",
+       "rowSpan",
+       "colSpan",
+       "useMap",
+       "frameBorder",
+       "contentEditable"
+], function() {
+       jQuery.propFix[ this.toLowerCase() ] = this;
+} );
+
+
+
+
+       // Strip and collapse whitespace according to HTML spec
+       // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace
+       function stripAndCollapse( value ) {
+               var tokens = value.match( rnothtmlwhite ) || [];
+               return tokens.join( " " );
+       }
+
+
+function getClass( elem ) {
+       return elem.getAttribute && elem.getAttribute( "class" ) || "";
+}
+
+jQuery.fn.extend( {
+       addClass: function( value ) {
+               var classes, elem, cur, curValue, clazz, j, finalValue,
+                       i = 0;
+
+               if ( jQuery.isFunction( value ) ) {
+                       return this.each( function( j ) {
+                               jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
+                       } );
+               }
+
+               if ( typeof value === "string" && value ) {
+                       classes = value.match( rnothtmlwhite ) || [];
+
+                       while ( ( elem = this[ i++ ] ) ) {
+                               curValue = getClass( elem );
+                               cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+                               if ( cur ) {
+                                       j = 0;
+                                       while ( ( clazz = classes[ j++ ] ) ) {
+                                               if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+                                                       cur += clazz + " ";
+                                               }
+                                       }
+
+                                       // Only assign if different to avoid unneeded rendering.
+                                       finalValue = stripAndCollapse( cur );
+                                       if ( curValue !== finalValue ) {
+                                               elem.setAttribute( "class", finalValue );
+                                       }
+                               }
+                       }
+               }
+
+               return this;
+       },
+
+       removeClass: function( value ) {
+               var classes, elem, cur, curValue, clazz, j, finalValue,
+                       i = 0;
+
+               if ( jQuery.isFunction( value ) ) {
+                       return this.each( function( j ) {
+                               jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
+                       } );
+               }
+
+               if ( !arguments.length ) {
+                       return this.attr( "class", "" );
+               }
+
+               if ( typeof value === "string" && value ) {
+                       classes = value.match( rnothtmlwhite ) || [];
+
+                       while ( ( elem = this[ i++ ] ) ) {
+                               curValue = getClass( elem );
+
+                               // This expression is here for better compressibility (see addClass)
+                               cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+                               if ( cur ) {
+                                       j = 0;
+                                       while ( ( clazz = classes[ j++ ] ) ) {
+
+                                               // Remove *all* instances
+                                               while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
+                                                       cur = cur.replace( " " + clazz + " ", " " );
+                                               }
+                                       }
+
+                                       // Only assign if different to avoid unneeded rendering.
+                                       finalValue = stripAndCollapse( cur );
+                                       if ( curValue !== finalValue ) {
+                                               elem.setAttribute( "class", finalValue );
+                                       }
+                               }
+                       }
+               }
+
+               return this;
+       },
+
+       toggleClass: function( value, stateVal ) {
+               var type = typeof value;
+
+               if ( typeof stateVal === "boolean" && type === "string" ) {
+                       return stateVal ? this.addClass( value ) : this.removeClass( value );
+               }
+
+               if ( jQuery.isFunction( value ) ) {
+                       return this.each( function( i ) {
+                               jQuery( this ).toggleClass(
+                                       value.call( this, i, getClass( this ), stateVal ),
+                                       stateVal
+                               );
+                       } );
+               }
+
+               return this.each( function() {
+                       var className, i, self, classNames;
+
+                       if ( type === "string" ) {
+
+                               // Toggle individual class names
+                               i = 0;
+                               self = jQuery( this );
+                               classNames = value.match( rnothtmlwhite ) || [];
+
+                               while ( ( className = classNames[ i++ ] ) ) {
+
+                                       // Check each className given, space separated list
+                                       if ( self.hasClass( className ) ) {
+                                               self.removeClass( className );
+                                       } else {
+                                               self.addClass( className );
+                                       }
+                               }
+
+                       // Toggle whole class name
+                       } else if ( value === undefined || type === "boolean" ) {
+                               className = getClass( this );
+                               if ( className ) {
+
+                                       // Store className if set
+                                       dataPriv.set( this, "__className__", className );
+                               }
+
+                               // If the element has a class name or if we're passed `false`,
+                               // then remove the whole classname (if there was one, the above saved it).
+                               // Otherwise bring back whatever was previously saved (if anything),
+                               // falling back to the empty string if nothing was stored.
+                               if ( this.setAttribute ) {
+                                       this.setAttribute( "class",
+                                               className || value === false ?
+                                               "" :
+                                               dataPriv.get( this, "__className__" ) || ""
+                                       );
+                               }
+                       }
+               } );
+       },
+
+       hasClass: function( selector ) {
+               var className, elem,
+                       i = 0;
+
+               className = " " + selector + " ";
+               while ( ( elem = this[ i++ ] ) ) {
+                       if ( elem.nodeType === 1 &&
+                               ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
+                                       return true;
+                       }
+               }
+
+               return false;
+       }
+} );
+
+
+
+
+var rreturn = /\r/g;
+
+jQuery.fn.extend( {
+       val: function( value ) {
+               var hooks, ret, isFunction,
+                       elem = this[ 0 ];
+
+               if ( !arguments.length ) {
+                       if ( elem ) {
+                               hooks = jQuery.valHooks[ elem.type ] ||
+                                       jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+                               if ( hooks &&
+                                       "get" in hooks &&
+                                       ( ret = hooks.get( elem, "value" ) ) !== undefined
+                               ) {
+                                       return ret;
+                               }
+
+                               ret = elem.value;
+
+                               // Handle most common string cases
+                               if ( typeof ret === "string" ) {
+                                       return ret.replace( rreturn, "" );
+                               }
+
+                               // Handle cases where value is null/undef or number
+                               return ret == null ? "" : ret;
+                       }
+
+                       return;
+               }
+
+               isFunction = jQuery.isFunction( value );
+
+               return this.each( function( i ) {
+                       var val;
+
+                       if ( this.nodeType !== 1 ) {
+                               return;
+                       }
+
+                       if ( isFunction ) {
+                               val = value.call( this, i, jQuery( this ).val() );
+                       } else {
+                               val = value;
+                       }
+
+                       // Treat null/undefined as ""; convert numbers to string
+                       if ( val == null ) {
+                               val = "";
+
+                       } else if ( typeof val === "number" ) {
+                               val += "";
+
+                       } else if ( Array.isArray( val ) ) {
+                               val = jQuery.map( val, function( value ) {
+                                       return value == null ? "" : value + "";
+                               } );
+                       }
+
+                       hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+                       // If set returns undefined, fall back to normal setting
+                       if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
+                               this.value = val;
+                       }
+               } );
+       }
+} );
+
+jQuery.extend( {
+       valHooks: {
+               option: {
+                       get: function( elem ) {
+
+                               var val = jQuery.find.attr( elem, "value" );
+                               return val != null ?
+                                       val :
+
+                                       // Support: IE <=10 - 11 only
+                                       // option.text throws exceptions (#14686, #14858)
+                                       // Strip and collapse whitespace
+                                       // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+                                       stripAndCollapse( jQuery.text( elem ) );
+                       }
+               },
+               select: {
+                       get: function( elem ) {
+                               var value, option, i,
+                                       options = elem.options,
+                                       index = elem.selectedIndex,
+                                       one = elem.type === "select-one",
+                                       values = one ? null : [],
+                                       max = one ? index + 1 : options.length;
+
+                               if ( index < 0 ) {
+                                       i = max;
+
+                               } else {
+                                       i = one ? index : 0;
+                               }
+
+                               // Loop through all the selected options
+                               for ( ; i < max; i++ ) {
+                                       option = options[ i ];
+
+                                       // Support: IE <=9 only
+                                       // IE8-9 doesn't update selected after form reset (#2551)
+                                       if ( ( option.selected || i === index ) &&
+
+                                                       // Don't return options that are disabled or in a disabled optgroup
+                                                       !option.disabled &&
+                                                       ( !option.parentNode.disabled ||
+                                                               !nodeName( option.parentNode, "optgroup" ) ) ) {
+
+                                               // Get the specific value for the option
+                                               value = jQuery( option ).val();
+
+                                               // We don't need an array for one selects
+                                               if ( one ) {
+                                                       return value;
+                                               }
+
+                                               // Multi-Selects return an array
+                                               values.push( value );
+                                       }
+                               }
+
+                               return values;
+                       },
+
+                       set: function( elem, value ) {
+                               var optionSet, option,
+                                       options = elem.options,
+                                       values = jQuery.makeArray( value ),
+                                       i = options.length;
+
+                               while ( i-- ) {
+                                       option = options[ i ];
+
+                                       /* eslint-disable no-cond-assign */
+
+                                       if ( option.selected =
+                                               jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+                                       ) {
+                                               optionSet = true;
+                                       }
+
+                                       /* eslint-enable no-cond-assign */
+                               }
+
+                               // Force browsers to behave consistently when non-matching value is set
+                               if ( !optionSet ) {
+                                       elem.selectedIndex = -1;
+                               }
+                               return values;
+                       }
+               }
+       }
+} );
+
+// Radios and checkboxes getter/setter
+jQuery.each( [ "radio", "checkbox" ], function() {
+       jQuery.valHooks[ this ] = {
+               set: function( elem, value ) {
+                       if ( Array.isArray( value ) ) {
+                               return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
+                       }
+               }
+       };
+       if ( !support.checkOn ) {
+               jQuery.valHooks[ this ].get = function( elem ) {
+                       return elem.getAttribute( "value" ) === null ? "on" : elem.value;
+               };
+       }
+} );
+
+
+
+
+// Return jQuery for attributes-only inclusion
+
+
+var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
+
+jQuery.extend( jQuery.event, {
+
+       trigger: function( event, data, elem, onlyHandlers ) {
+
+               var i, cur, tmp, bubbleType, ontype, handle, special,
+                       eventPath = [ elem || document ],
+                       type = hasOwn.call( event, "type" ) ? event.type : event,
+                       namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
+
+               cur = tmp = elem = elem || document;
+
+               // Don't do events on text and comment nodes
+               if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+                       return;
+               }
+
+               // focus/blur morphs to focusin/out; ensure we're not firing them right now
+               if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+                       return;
+               }
+
+               if ( type.indexOf( "." ) > -1 ) {
+
+                       // Namespaced trigger; create a regexp to match event type in handle()
+                       namespaces = type.split( "." );
+                       type = namespaces.shift();
+                       namespaces.sort();
+               }
+               ontype = type.indexOf( ":" ) < 0 && "on" + type;
+
+               // Caller can pass in a jQuery.Event object, Object, or just an event type string
+               event = event[ jQuery.expando ] ?
+                       event :
+                       new jQuery.Event( type, typeof event === "object" && event );
+
+               // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+               event.isTrigger = onlyHandlers ? 2 : 3;
+               event.namespace = namespaces.join( "." );
+               event.rnamespace = event.namespace ?
+                       new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
+                       null;
+
+               // Clean up the event in case it is being reused
+               event.result = undefined;
+               if ( !event.target ) {
+                       event.target = elem;
+               }
+
+               // Clone any incoming data and prepend the event, creating the handler arg list
+               data = data == null ?
+                       [ event ] :
+                       jQuery.makeArray( data, [ event ] );
+
+               // Allow special events to draw outside the lines
+               special = jQuery.event.special[ type ] || {};
+               if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+                       return;
+               }
+
+               // Determine event propagation path in advance, per W3C events spec (#9951)
+               // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+               if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
+
+                       bubbleType = special.delegateType || type;
+                       if ( !rfocusMorph.test( bubbleType + type ) ) {
+                               cur = cur.parentNode;
+                       }
+                       for ( ; cur; cur = cur.parentNode ) {
+                               eventPath.push( cur );
+                               tmp = cur;
+                       }
+
+                       // Only add window if we got to document (e.g., not plain obj or detached DOM)
+                       if ( tmp === ( elem.ownerDocument || document ) ) {
+                               eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+                       }
+               }
+
+               // Fire handlers on the event path
+               i = 0;
+               while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
+
+                       event.type = i > 1 ?
+                               bubbleType :
+                               special.bindType || type;
+
+                       // jQuery handler
+                       handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
+                               dataPriv.get( cur, "handle" );
+                       if ( handle ) {
+                               handle.apply( cur, data );
+                       }
+
+                       // Native handler
+                       handle = ontype && cur[ ontype ];
+                       if ( handle && handle.apply && acceptData( cur ) ) {
+                               event.result = handle.apply( cur, data );
+                               if ( event.result === false ) {
+                                       event.preventDefault();
+                               }
+                       }
+               }
+               event.type = type;
+
+               // If nobody prevented the default action, do it now
+               if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+                       if ( ( !special._default ||
+                               special._default.apply( eventPath.pop(), data ) === false ) &&
+                               acceptData( elem ) ) {
+
+                               // Call a native DOM method on the target with the same name as the event.
+                               // Don't do default actions on window, that's where global variables be (#6170)
+                               if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
+
+                                       // Don't re-trigger an onFOO event when we call its FOO() method
+                                       tmp = elem[ ontype ];
+
+                                       if ( tmp ) {
+                                               elem[ ontype ] = null;
+                                       }
+
+                                       // Prevent re-triggering of the same event, since we already bubbled it above
+                                       jQuery.event.triggered = type;
+                                       elem[ type ]();
+                                       jQuery.event.triggered = undefined;
+
+                                       if ( tmp ) {
+                                               elem[ ontype ] = tmp;
+                                       }
+                               }
+                       }
+               }
+
+               return event.result;
+       },
+
+       // Piggyback on a donor event to simulate a different one
+       // Used only for `focus(in | out)` events
+       simulate: function( type, elem, event ) {
+               var e = jQuery.extend(
+                       new jQuery.Event(),
+                       event,
+                       {
+                               type: type,
+                               isSimulated: true
+                       }
+               );
+
+               jQuery.event.trigger( e, null, elem );
+       }
+
+} );
+
+jQuery.fn.extend( {
+
+       trigger: function( type, data ) {
+               return this.each( function() {
+                       jQuery.event.trigger( type, data, this );
+               } );
+       },
+       triggerHandler: function( type, data ) {
+               var elem = this[ 0 ];
+               if ( elem ) {
+                       return jQuery.event.trigger( type, data, elem, true );
+               }
+       }
+} );
+
+
+jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
+       "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+       "change select submit keydown keypress keyup contextmenu" ).split( " " ),
+       function( i, name ) {
+
+       // Handle event binding
+       jQuery.fn[ name ] = function( data, fn ) {
+               return arguments.length > 0 ?
+                       this.on( name, null, data, fn ) :
+                       this.trigger( name );
+       };
+} );
+
+jQuery.fn.extend( {
+       hover: function( fnOver, fnOut ) {
+               return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+       }
+} );
+
+
+
+
+support.focusin = "onfocusin" in window;
+
+
+// Support: Firefox <=44
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
+       jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+               // Attach a single capturing handler on the document while someone wants focusin/focusout
+               var handler = function( event ) {
+                       jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
+               };
+
+               jQuery.event.special[ fix ] = {
+                       setup: function() {
+                               var doc = this.ownerDocument || this,
+                                       attaches = dataPriv.access( doc, fix );
+
+                               if ( !attaches ) {
+                                       doc.addEventListener( orig, handler, true );
+                               }
+                               dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
+                       },
+                       teardown: function() {
+                               var doc = this.ownerDocument || this,
+                                       attaches = dataPriv.access( doc, fix ) - 1;
+
+                               if ( !attaches ) {
+                                       doc.removeEventListener( orig, handler, true );
+                                       dataPriv.remove( doc, fix );
+
+                               } else {
+                                       dataPriv.access( doc, fix, attaches );
+                               }
+                       }
+               };
+       } );
+}
+var location = window.location;
+
+var nonce = jQuery.now();
+
+var rquery = ( /\?/ );
+
+
+
+// Cross-browser xml parsing
+jQuery.parseXML = function( data ) {
+       var xml;
+       if ( !data || typeof data !== "string" ) {
+               return null;
+       }
+
+       // Support: IE 9 - 11 only
+       // IE throws on parseFromString with invalid input.
+       try {
+               xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
+       } catch ( e ) {
+               xml = undefined;
+       }
+
+       if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
+               jQuery.error( "Invalid XML: " + data );
+       }
+       return xml;
+};
+
+
+var
+       rbracket = /\[\]$/,
+       rCRLF = /\r?\n/g,
+       rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+       rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+function buildParams( prefix, obj, traditional, add ) {
+       var name;
+
+       if ( Array.isArray( obj ) ) {
+
+               // Serialize array item.
+               jQuery.each( obj, function( i, v ) {
+                       if ( traditional || rbracket.test( prefix ) ) {
+
+                               // Treat each array item as a scalar.
+                               add( prefix, v );
+
+                       } else {
+
+                               // Item is non-scalar (array or object), encode its numeric index.
+                               buildParams(
+                                       prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
+                                       v,
+                                       traditional,
+                                       add
+                               );
+                       }
+               } );
+
+       } else if ( !traditional && jQuery.type( obj ) === "object" ) {
+
+               // Serialize object item.
+               for ( name in obj ) {
+                       buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+               }
+
+       } else {
+
+               // Serialize scalar item.
+               add( prefix, obj );
+       }
+}
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+jQuery.param = function( a, traditional ) {
+       var prefix,
+               s = [],
+               add = function( key, valueOrFunction ) {
+
+                       // If value is a function, invoke it and use its return value
+                       var value = jQuery.isFunction( valueOrFunction ) ?
+                               valueOrFunction() :
+                               valueOrFunction;
+
+                       s[ s.length ] = encodeURIComponent( key ) + "=" +
+                               encodeURIComponent( value == null ? "" : value );
+               };
+
+       // If an array was passed in, assume that it is an array of form elements.
+       if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+
+               // Serialize the form elements
+               jQuery.each( a, function() {
+                       add( this.name, this.value );
+               } );
+
+       } else {
+
+               // If traditional, encode the "old" way (the way 1.3.2 or older
+               // did it), otherwise encode params recursively.
+               for ( prefix in a ) {
+                       buildParams( prefix, a[ prefix ], traditional, add );
+               }
+       }
+
+       // Return the resulting serialization
+       return s.join( "&" );
+};
+
+jQuery.fn.extend( {
+       serialize: function() {
+               return jQuery.param( this.serializeArray() );
+       },
+       serializeArray: function() {
+               return this.map( function() {
+
+                       // Can add propHook for "elements" to filter or add form elements
+                       var elements = jQuery.prop( this, "elements" );
+                       return elements ? jQuery.makeArray( elements ) : this;
+               } )
+               .filter( function() {
+                       var type = this.type;
+
+                       // Use .is( ":disabled" ) so that fieldset[disabled] works
+                       return this.name && !jQuery( this ).is( ":disabled" ) &&
+                               rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+                               ( this.checked || !rcheckableType.test( type ) );
+               } )
+               .map( function( i, elem ) {
+                       var val = jQuery( this ).val();
+
+                       if ( val == null ) {
+                               return null;
+                       }
+
+                       if ( Array.isArray( val ) ) {
+                               return jQuery.map( val, function( val ) {
+                                       return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+                               } );
+                       }
+
+                       return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+               } ).get();
+       }
+} );
+
+
+var
+       r20 = /%20/g,
+       rhash = /#.*$/,
+       rantiCache = /([?&])_=[^&]*/,
+       rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
+
+       // #7653, #8125, #8152: local protocol detection
+       rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+       rnoContent = /^(?:GET|HEAD)$/,
+       rprotocol = /^\/\//,
+
+       /* Prefilters
+        * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+        * 2) These are called:
+        *    - BEFORE asking for a transport
+        *    - AFTER param serialization (s.data is a string if s.processData is true)
+        * 3) key is the dataType
+        * 4) the catchall symbol "*" can be used
+        * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+        */
+       prefilters = {},
+
+       /* Transports bindings
+        * 1) key is the dataType
+        * 2) the catchall symbol "*" can be used
+        * 3) selection will start with transport dataType and THEN go to "*" if needed
+        */
+       transports = {},
+
+       // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+       allTypes = "*/".concat( "*" ),
+
+       // Anchor tag for parsing the document origin
+       originAnchor = document.createElement( "a" );
+       originAnchor.href = location.href;
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+       // dataTypeExpression is optional and defaults to "*"
+       return function( dataTypeExpression, func ) {
+
+               if ( typeof dataTypeExpression !== "string" ) {
+                       func = dataTypeExpression;
+                       dataTypeExpression = "*";
+               }
+
+               var dataType,
+                       i = 0,
+                       dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
+
+               if ( jQuery.isFunction( func ) ) {
+
+                       // For each dataType in the dataTypeExpression
+                       while ( ( dataType = dataTypes[ i++ ] ) ) {
+
+                               // Prepend if requested
+                               if ( dataType[ 0 ] === "+" ) {
+                                       dataType = dataType.slice( 1 ) || "*";
+                                       ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
+
+                               // Otherwise append
+                               } else {
+                                       ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
+                               }
+                       }
+               }
+       };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+       var inspected = {},
+               seekingTransport = ( structure === transports );
+
+       function inspect( dataType ) {
+               var selected;
+               inspected[ dataType ] = true;
+               jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+                       var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+                       if ( typeof dataTypeOrTransport === "string" &&
+                               !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+
+                               options.dataTypes.unshift( dataTypeOrTransport );
+                               inspect( dataTypeOrTransport );
+                               return false;
+                       } else if ( seekingTransport ) {
+                               return !( selected = dataTypeOrTransport );
+                       }
+               } );
+               return selected;
+       }
+
+       return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+       var key, deep,
+               flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+       for ( key in src ) {
+               if ( src[ key ] !== undefined ) {
+                       ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
+               }
+       }
+       if ( deep ) {
+               jQuery.extend( true, target, deep );
+       }
+
+       return target;
+}
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+       var ct, type, finalDataType, firstDataType,
+               contents = s.contents,
+               dataTypes = s.dataTypes;
+
+       // Remove auto dataType and get content-type in the process
+       while ( dataTypes[ 0 ] === "*" ) {
+               dataTypes.shift();
+               if ( ct === undefined ) {
+                       ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
+               }
+       }
+
+       // Check if we're dealing with a known content-type
+       if ( ct ) {
+               for ( type in contents ) {
+                       if ( contents[ type ] && contents[ type ].test( ct ) ) {
+                               dataTypes.unshift( type );
+                               break;
+                       }
+               }
+       }
+
+       // Check to see if we have a response for the expected dataType
+       if ( dataTypes[ 0 ] in responses ) {
+               finalDataType = dataTypes[ 0 ];
+       } else {
+
+               // Try convertible dataTypes
+               for ( type in responses ) {
+                       if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
+                               finalDataType = type;
+                               break;
+                       }
+                       if ( !firstDataType ) {
+                               firstDataType = type;
+                       }
+               }
+
+               // Or just use first one
+               finalDataType = finalDataType || firstDataType;
+       }
+
+       // If we found a dataType
+       // We add the dataType to the list if needed
+       // and return the corresponding response
+       if ( finalDataType ) {
+               if ( finalDataType !== dataTypes[ 0 ] ) {
+                       dataTypes.unshift( finalDataType );
+               }
+               return responses[ finalDataType ];
+       }
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+       var conv2, current, conv, tmp, prev,
+               converters = {},
+
+               // Work with a copy of dataTypes in case we need to modify it for conversion
+               dataTypes = s.dataTypes.slice();
+
+       // Create converters map with lowercased keys
+       if ( dataTypes[ 1 ] ) {
+               for ( conv in s.converters ) {
+                       converters[ conv.toLowerCase() ] = s.converters[ conv ];
+               }
+       }
+
+       current = dataTypes.shift();
+
+       // Convert to each sequential dataType
+       while ( current ) {
+
+               if ( s.responseFields[ current ] ) {
+                       jqXHR[ s.responseFields[ current ] ] = response;
+               }
+
+               // Apply the dataFilter if provided
+               if ( !prev && isSuccess && s.dataFilter ) {
+                       response = s.dataFilter( response, s.dataType );
+               }
+
+               prev = current;
+               current = dataTypes.shift();
+
+               if ( current ) {
+
+                       // There's only work to do if current dataType is non-auto
+                       if ( current === "*" ) {
+
+                               current = prev;
+
+                       // Convert response if prev dataType is non-auto and differs from current
+                       } else if ( prev !== "*" && prev !== current ) {
+
+                               // Seek a direct converter
+                               conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+                               // If none found, seek a pair
+                               if ( !conv ) {
+                                       for ( conv2 in converters ) {
+
+                                               // If conv2 outputs current
+                                               tmp = conv2.split( " " );
+                                               if ( tmp[ 1 ] === current ) {
+
+                                                       // If prev can be converted to accepted input
+                                                       conv = converters[ prev + " " + tmp[ 0 ] ] ||
+                                                               converters[ "* " + tmp[ 0 ] ];
+                                                       if ( conv ) {
+
+                                                               // Condense equivalence converters
+                                                               if ( conv === true ) {
+                                                                       conv = converters[ conv2 ];
+
+                                                               // Otherwise, insert the intermediate dataType
+                                                               } else if ( converters[ conv2 ] !== true ) {
+                                                                       current = tmp[ 0 ];
+                                                                       dataTypes.unshift( tmp[ 1 ] );
+                                                               }
+                                                               break;
+                                                       }
+                                               }
+                                       }
+                               }
+
+                               // Apply converter (if not an equivalence)
+                               if ( conv !== true ) {
+
+                                       // Unless errors are allowed to bubble, catch and return them
+                                       if ( conv && s.throws ) {
+                                               response = conv( response );
+                                       } else {
+                                               try {
+                                                       response = conv( response );
+                                               } catch ( e ) {
+                                                       return {
+                                                               state: "parsererror",
+                                                               error: conv ? e : "No conversion from " + prev + " to " + current
+                                                       };
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       return { state: "success", data: response };
+}
+
+jQuery.extend( {
+
+       // Counter for holding the number of active queries
+       active: 0,
+
+       // Last-Modified header cache for next request
+       lastModified: {},
+       etag: {},
+
+       ajaxSettings: {
+               url: location.href,
+               type: "GET",
+               isLocal: rlocalProtocol.test( location.protocol ),
+               global: true,
+               processData: true,
+               async: true,
+               contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+
+               /*
+               timeout: 0,
+               data: null,
+               dataType: null,
+               username: null,
+               password: null,
+               cache: null,
+               throws: false,
+               traditional: false,
+               headers: {},
+               */
+
+               accepts: {
+                       "*": allTypes,
+                       text: "text/plain",
+                       html: "text/html",
+                       xml: "application/xml, text/xml",
+                       json: "application/json, text/javascript"
+               },
+
+               contents: {
+                       xml: /\bxml\b/,
+                       html: /\bhtml/,
+                       json: /\bjson\b/
+               },
+
+               responseFields: {
+                       xml: "responseXML",
+                       text: "responseText",
+                       json: "responseJSON"
+               },
+
+               // Data converters
+               // Keys separate source (or catchall "*") and destination types with a single space
+               converters: {
+
+                       // Convert anything to text
+                       "* text": String,
+
+                       // Text to html (true = no transformation)
+                       "text html": true,
+
+                       // Evaluate text as a json expression
+                       "text json": JSON.parse,
+
+                       // Parse text as xml
+                       "text xml": jQuery.parseXML
+               },
+
+               // For options that shouldn't be deep extended:
+               // you can add your own custom options here if
+               // and when you create one that shouldn't be
+               // deep extended (see ajaxExtend)
+               flatOptions: {
+                       url: true,
+                       context: true
+               }
+       },
+
+       // Creates a full fledged settings object into target
+       // with both ajaxSettings and settings fields.
+       // If target is omitted, writes into ajaxSettings.
+       ajaxSetup: function( target, settings ) {
+               return settings ?
+
+                       // Building a settings object
+                       ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+                       // Extending ajaxSettings
+                       ajaxExtend( jQuery.ajaxSettings, target );
+       },
+
+       ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+       ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+       // Main method
+       ajax: function( url, options ) {
+
+               // If url is an object, simulate pre-1.5 signature
+               if ( typeof url === "object" ) {
+                       options = url;
+                       url = undefined;
+               }
+
+               // Force options to be an object
+               options = options || {};
+
+               var transport,
+
+                       // URL without anti-cache param
+                       cacheURL,
+
+                       // Response headers
+                       responseHeadersString,
+                       responseHeaders,
+
+                       // timeout handle
+                       timeoutTimer,
+
+                       // Url cleanup var
+                       urlAnchor,
+
+                       // Request state (becomes false upon send and true upon completion)
+                       completed,
+
+                       // To know if global events are to be dispatched
+                       fireGlobals,
+
+                       // Loop variable
+                       i,
+
+                       // uncached part of the url
+                       uncached,
+
+                       // Create the final options object
+                       s = jQuery.ajaxSetup( {}, options ),
+
+                       // Callbacks context
+                       callbackContext = s.context || s,
+
+                       // Context for global events is callbackContext if it is a DOM node or jQuery collection
+                       globalEventContext = s.context &&
+                               ( callbackContext.nodeType || callbackContext.jquery ) ?
+                                       jQuery( callbackContext ) :
+                                       jQuery.event,
+
+                       // Deferreds
+                       deferred = jQuery.Deferred(),
+                       completeDeferred = jQuery.Callbacks( "once memory" ),
+
+                       // Status-dependent callbacks
+                       statusCode = s.statusCode || {},
+
+                       // Headers (they are sent all at once)
+                       requestHeaders = {},
+                       requestHeadersNames = {},
+
+                       // Default abort message
+                       strAbort = "canceled",
+
+                       // Fake xhr
+                       jqXHR = {
+                               readyState: 0,
+
+                               // Builds headers hashtable if needed
+                               getResponseHeader: function( key ) {
+                                       var match;
+                                       if ( completed ) {
+                                               if ( !responseHeaders ) {
+                                                       responseHeaders = {};
+                                                       while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
+                                                               responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
+                                                       }
+                                               }
+                                               match = responseHeaders[ key.toLowerCase() ];
+                                       }
+                                       return match == null ? null : match;
+                               },
+
+                               // Raw string
+                               getAllResponseHeaders: function() {
+                                       return completed ? responseHeadersString : null;
+                               },
+
+                               // Caches the header
+                               setRequestHeader: function( name, value ) {
+                                       if ( completed == null ) {
+                                               name = requestHeadersNames[ name.toLowerCase() ] =
+                                                       requestHeadersNames[ name.toLowerCase() ] || name;
+                                               requestHeaders[ name ] = value;
+                                       }
+                                       return this;
+                               },
+
+                               // Overrides response content-type header
+                               overrideMimeType: function( type ) {
+                                       if ( completed == null ) {
+                                               s.mimeType = type;
+                                       }
+                                       return this;
+                               },
+
+                               // Status-dependent callbacks
+                               statusCode: function( map ) {
+                                       var code;
+                                       if ( map ) {
+                                               if ( completed ) {
+
+                                                       // Execute the appropriate callbacks
+                                                       jqXHR.always( map[ jqXHR.status ] );
+                                               } else {
+
+                                                       // Lazy-add the new callbacks in a way that preserves old ones
+                                                       for ( code in map ) {
+                                                               statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+                                                       }
+                                               }
+                                       }
+                                       return this;
+                               },
+
+                               // Cancel the request
+                               abort: function( statusText ) {
+                                       var finalText = statusText || strAbort;
+                                       if ( transport ) {
+                                               transport.abort( finalText );
+                                       }
+                                       done( 0, finalText );
+                                       return this;
+                               }
+                       };
+
+               // Attach deferreds
+               deferred.promise( jqXHR );
+
+               // Add protocol if not provided (prefilters might expect it)
+               // Handle falsy url in the settings object (#10093: consistency with old signature)
+               // We also use the url parameter if available
+               s.url = ( ( url || s.url || location.href ) + "" )
+                       .replace( rprotocol, location.protocol + "//" );
+
+               // Alias method option to type as per ticket #12004
+               s.type = options.method || options.type || s.method || s.type;
+
+               // Extract dataTypes list
+               s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
+
+               // A cross-domain request is in order when the origin doesn't match the current origin.
+               if ( s.crossDomain == null ) {
+                       urlAnchor = document.createElement( "a" );
+
+                       // Support: IE <=8 - 11, Edge 12 - 13
+                       // IE throws exception on accessing the href property if url is malformed,
+                       // e.g. http://example.com:80x/
+                       try {
+                               urlAnchor.href = s.url;
+
+                               // Support: IE <=8 - 11 only
+                               // Anchor's host property isn't correctly set when s.url is relative
+                               urlAnchor.href = urlAnchor.href;
+                               s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
+                                       urlAnchor.protocol + "//" + urlAnchor.host;
+                       } catch ( e ) {
+
+                               // If there is an error parsing the URL, assume it is crossDomain,
+                               // it can be rejected by the transport if it is invalid
+                               s.crossDomain = true;
+                       }
+               }
+
+               // Convert data if not already a string
+               if ( s.data && s.processData && typeof s.data !== "string" ) {
+                       s.data = jQuery.param( s.data, s.traditional );
+               }
+
+               // Apply prefilters
+               inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+               // If request was aborted inside a prefilter, stop there
+               if ( completed ) {
+                       return jqXHR;
+               }
+
+               // We can fire global events as of now if asked to
+               // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
+               fireGlobals = jQuery.event && s.global;
+
+               // Watch for a new set of requests
+               if ( fireGlobals && jQuery.active++ === 0 ) {
+                       jQuery.event.trigger( "ajaxStart" );
+               }
+
+               // Uppercase the type
+               s.type = s.type.toUpperCase();
+
+               // Determine if request has content
+               s.hasContent = !rnoContent.test( s.type );
+
+               // Save the URL in case we're toying with the If-Modified-Since
+               // and/or If-None-Match header later on
+               // Remove hash to simplify url manipulation
+               cacheURL = s.url.replace( rhash, "" );
+
+               // More options handling for requests with no content
+               if ( !s.hasContent ) {
+
+                       // Remember the hash so we can put it back
+                       uncached = s.url.slice( cacheURL.length );
+
+                       // If data is available, append data to url
+                       if ( s.data ) {
+                               cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
+
+                               // #9682: remove data so that it's not used in an eventual retry
+                               delete s.data;
+                       }
+
+                       // Add or update anti-cache param if needed
+                       if ( s.cache === false ) {
+                               cacheURL = cacheURL.replace( rantiCache, "$1" );
+                               uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
+                       }
+
+                       // Put hash and anti-cache on the URL that will be requested (gh-1732)
+                       s.url = cacheURL + uncached;
+
+               // Change '%20' to '+' if this is encoded form body content (gh-2658)
+               } else if ( s.data && s.processData &&
+                       ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
+                       s.data = s.data.replace( r20, "+" );
+               }
+
+               // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+               if ( s.ifModified ) {
+                       if ( jQuery.lastModified[ cacheURL ] ) {
+                               jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+                       }
+                       if ( jQuery.etag[ cacheURL ] ) {
+                               jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+                       }
+               }
+
+               // Set the correct header, if data is being sent
+               if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+                       jqXHR.setRequestHeader( "Content-Type", s.contentType );
+               }
+
+               // Set the Accepts header for the server, depending on the dataType
+               jqXHR.setRequestHeader(
+                       "Accept",
+                       s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
+                               s.accepts[ s.dataTypes[ 0 ] ] +
+                                       ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+                               s.accepts[ "*" ]
+               );
+
+               // Check for headers option
+               for ( i in s.headers ) {
+                       jqXHR.setRequestHeader( i, s.headers[ i ] );
+               }
+
+               // Allow custom headers/mimetypes and early abort
+               if ( s.beforeSend &&
+                       ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
+
+                       // Abort if not done already and return
+                       return jqXHR.abort();
+               }
+
+               // Aborting is no longer a cancellation
+               strAbort = "abort";
+
+               // Install callbacks on deferreds
+               completeDeferred.add( s.complete );
+               jqXHR.done( s.success );
+               jqXHR.fail( s.error );
+
+               // Get transport
+               transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+               // If no transport, we auto-abort
+               if ( !transport ) {
+                       done( -1, "No Transport" );
+               } else {
+                       jqXHR.readyState = 1;
+
+                       // Send global event
+                       if ( fireGlobals ) {
+                               globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+                       }
+
+                       // If request was aborted inside ajaxSend, stop there
+                       if ( completed ) {
+                               return jqXHR;
+                       }
+
+                       // Timeout
+                       if ( s.async && s.timeout > 0 ) {
+                               timeoutTimer = window.setTimeout( function() {
+                                       jqXHR.abort( "timeout" );
+                               }, s.timeout );
+                       }
+
+                       try {
+                               completed = false;
+                               transport.send( requestHeaders, done );
+                       } catch ( e ) {
+
+                               // Rethrow post-completion exceptions
+                               if ( completed ) {
+                                       throw e;
+                               }
+
+                               // Propagate others as results
+                               done( -1, e );
+                       }
+               }
+
+               // Callback for when everything is done
+               function done( status, nativeStatusText, responses, headers ) {
+                       var isSuccess, success, error, response, modified,
+                               statusText = nativeStatusText;
+
+                       // Ignore repeat invocations
+                       if ( completed ) {
+                               return;
+                       }
+
+                       completed = true;
+
+                       // Clear timeout if it exists
+                       if ( timeoutTimer ) {
+                               window.clearTimeout( timeoutTimer );
+                       }
+
+                       // Dereference transport for early garbage collection
+                       // (no matter how long the jqXHR object will be used)
+                       transport = undefined;
+
+                       // Cache response headers
+                       responseHeadersString = headers || "";
+
+                       // Set readyState
+                       jqXHR.readyState = status > 0 ? 4 : 0;
+
+                       // Determine if successful
+                       isSuccess = status >= 200 && status < 300 || status === 304;
+
+                       // Get response data
+                       if ( responses ) {
+                               response = ajaxHandleResponses( s, jqXHR, responses );
+                       }
+
+                       // Convert no matter what (that way responseXXX fields are always set)
+                       response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+                       // If successful, handle type chaining
+                       if ( isSuccess ) {
+
+                               // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+                               if ( s.ifModified ) {
+                                       modified = jqXHR.getResponseHeader( "Last-Modified" );
+                                       if ( modified ) {
+                                               jQuery.lastModified[ cacheURL ] = modified;
+                                       }
+                                       modified = jqXHR.getResponseHeader( "etag" );
+                                       if ( modified ) {
+                                               jQuery.etag[ cacheURL ] = modified;
+                                       }
+                               }
+
+                               // if no content
+                               if ( status === 204 || s.type === "HEAD" ) {
+                                       statusText = "nocontent";
+
+                               // if not modified
+                               } else if ( status === 304 ) {
+                                       statusText = "notmodified";
+
+                               // If we have data, let's convert it
+                               } else {
+                                       statusText = response.state;
+                                       success = response.data;
+                                       error = response.error;
+                                       isSuccess = !error;
+                               }
+                       } else {
+
+                               // Extract error from statusText and normalize for non-aborts
+                               error = statusText;
+                               if ( status || !statusText ) {
+                                       statusText = "error";
+                                       if ( status < 0 ) {
+                                               status = 0;
+                                       }
+                               }
+                       }
+
+                       // Set data for the fake xhr object
+                       jqXHR.status = status;
+                       jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+                       // Success/Error
+                       if ( isSuccess ) {
+                               deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+                       } else {
+                               deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+                       }
+
+                       // Status-dependent callbacks
+                       jqXHR.statusCode( statusCode );
+                       statusCode = undefined;
+
+                       if ( fireGlobals ) {
+                               globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+                                       [ jqXHR, s, isSuccess ? success : error ] );
+                       }
+
+                       // Complete
+                       completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+                       if ( fireGlobals ) {
+                               globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+
+                               // Handle the global AJAX counter
+                               if ( !( --jQuery.active ) ) {
+                                       jQuery.event.trigger( "ajaxStop" );
+                               }
+                       }
+               }
+
+               return jqXHR;
+       },
+
+       getJSON: function( url, data, callback ) {
+               return jQuery.get( url, data, callback, "json" );
+       },
+
+       getScript: function( url, callback ) {
+               return jQuery.get( url, undefined, callback, "script" );
+       }
+} );
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+       jQuery[ method ] = function( url, data, callback, type ) {
+
+               // Shift arguments if data argument was omitted
+               if ( jQuery.isFunction( data ) ) {
+                       type = type || callback;
+                       callback = data;
+                       data = undefined;
+               }
+
+               // The url can be an options object (which then must have .url)
+               return jQuery.ajax( jQuery.extend( {
+                       url: url,
+                       type: method,
+                       dataType: type,
+                       data: data,
+                       success: callback
+               }, jQuery.isPlainObject( url ) && url ) );
+       };
+} );
+
+
+jQuery._evalUrl = function( url ) {
+       return jQuery.ajax( {
+               url: url,
+
+               // Make this explicit, since user can override this through ajaxSetup (#11264)
+               type: "GET",
+               dataType: "script",
+               cache: true,
+               async: false,
+               global: false,
+               "throws": true
+       } );
+};
+
+
+jQuery.fn.extend( {
+       wrapAll: function( html ) {
+               var wrap;
+
+               if ( this[ 0 ] ) {
+                       if ( jQuery.isFunction( html ) ) {
+                               html = html.call( this[ 0 ] );
+                       }
+
+                       // The elements to wrap the target around
+                       wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
+
+                       if ( this[ 0 ].parentNode ) {
+                               wrap.insertBefore( this[ 0 ] );
+                       }
+
+                       wrap.map( function() {
+                               var elem = this;
+
+                               while ( elem.firstElementChild ) {
+                                       elem = elem.firstElementChild;
+                               }
+
+                               return elem;
+                       } ).append( this );
+               }
+
+               return this;
+       },
+
+       wrapInner: function( html ) {
+               if ( jQuery.isFunction( html ) ) {
+                       return this.each( function( i ) {
+                               jQuery( this ).wrapInner( html.call( this, i ) );
+                       } );
+               }
+
+               return this.each( function() {
+                       var self = jQuery( this ),
+                               contents = self.contents();
+
+                       if ( contents.length ) {
+                               contents.wrapAll( html );
+
+                       } else {
+                               self.append( html );
+                       }
+               } );
+       },
+
+       wrap: function( html ) {
+               var isFunction = jQuery.isFunction( html );
+
+               return this.each( function( i ) {
+                       jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
+               } );
+       },
+
+       unwrap: function( selector ) {
+               this.parent( selector ).not( "body" ).each( function() {
+                       jQuery( this ).replaceWith( this.childNodes );
+               } );
+               return this;
+       }
+} );
+
+
+jQuery.expr.pseudos.hidden = function( elem ) {
+       return !jQuery.expr.pseudos.visible( elem );
+};
+jQuery.expr.pseudos.visible = function( elem ) {
+       return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
+};
+
+
+
+
+jQuery.ajaxSettings.xhr = function() {
+       try {
+               return new window.XMLHttpRequest();
+       } catch ( e ) {}
+};
+
+var xhrSuccessStatus = {
+
+               // File protocol always yields status code 0, assume 200
+               0: 200,
+
+               // Support: IE <=9 only
+               // #1450: sometimes IE returns 1223 when it should be 204
+               1223: 204
+       },
+       xhrSupported = jQuery.ajaxSettings.xhr();
+
+support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+support.ajax = xhrSupported = !!xhrSupported;
+
+jQuery.ajaxTransport( function( options ) {
+       var callback, errorCallback;
+
+       // Cross domain only allowed if supported through XMLHttpRequest
+       if ( support.cors || xhrSupported && !options.crossDomain ) {
+               return {
+                       send: function( headers, complete ) {
+                               var i,
+                                       xhr = options.xhr();
+
+                               xhr.open(
+                                       options.type,
+                                       options.url,
+                                       options.async,
+                                       options.username,
+                                       options.password
+                               );
+
+                               // Apply custom fields if provided
+                               if ( options.xhrFields ) {
+                                       for ( i in options.xhrFields ) {
+                                               xhr[ i ] = options.xhrFields[ i ];
+                                       }
+                               }
+
+                               // Override mime type if needed
+                               if ( options.mimeType && xhr.overrideMimeType ) {
+                                       xhr.overrideMimeType( options.mimeType );
+                               }
+
+                               // X-Requested-With header
+                               // For cross-domain requests, seeing as conditions for a preflight are
+                               // akin to a jigsaw puzzle, we simply never set it to be sure.
+                               // (it can always be set on a per-request basis or even using ajaxSetup)
+                               // For same-domain requests, won't change header if already provided.
+                               if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
+                                       headers[ "X-Requested-With" ] = "XMLHttpRequest";
+                               }
+
+                               // Set headers
+                               for ( i in headers ) {
+                                       xhr.setRequestHeader( i, headers[ i ] );
+                               }
+
+                               // Callback
+                               callback = function( type ) {
+                                       return function() {
+                                               if ( callback ) {
+                                                       callback = errorCallback = xhr.onload =
+                                                               xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;
+
+                                                       if ( type === "abort" ) {
+                                                               xhr.abort();
+                                                       } else if ( type === "error" ) {
+
+                                                               // Support: IE <=9 only
+                                                               // On a manual native abort, IE9 throws
+                                                               // errors on any property access that is not readyState
+                                                               if ( typeof xhr.status !== "number" ) {
+                                                                       complete( 0, "error" );
+                                                               } else {
+                                                                       complete(
+
+                                                                               // File: protocol always yields status 0; see #8605, #14207
+                                                                               xhr.status,
+                                                                               xhr.statusText
+                                                                       );
+                                                               }
+                                                       } else {
+                                                               complete(
+                                                                       xhrSuccessStatus[ xhr.status ] || xhr.status,
+                                                                       xhr.statusText,
+
+                                                                       // Support: IE <=9 only
+                                                                       // IE9 has no XHR2 but throws on binary (trac-11426)
+                                                                       // For XHR2 non-text, let the caller handle it (gh-2498)
+                                                                       ( xhr.responseType || "text" ) !== "text"  ||
+                                                                       typeof xhr.responseText !== "string" ?
+                                                                               { binary: xhr.response } :
+                                                                               { text: xhr.responseText },
+                                                                       xhr.getAllResponseHeaders()
+                                                               );
+                                                       }
+                                               }
+                                       };
+                               };
+
+                               // Listen to events
+                               xhr.onload = callback();
+                               errorCallback = xhr.onerror = callback( "error" );
+
+                               // Support: IE 9 only
+                               // Use onreadystatechange to replace onabort
+                               // to handle uncaught aborts
+                               if ( xhr.onabort !== undefined ) {
+                                       xhr.onabort = errorCallback;
+                               } else {
+                                       xhr.onreadystatechange = function() {
+
+                                               // Check readyState before timeout as it changes
+                                               if ( xhr.readyState === 4 ) {
+
+                                                       // Allow onerror to be called first,
+                                                       // but that will not handle a native abort
+                                                       // Also, save errorCallback to a variable
+                                                       // as xhr.onerror cannot be accessed
+                                                       window.setTimeout( function() {
+                                                               if ( callback ) {
+                                                                       errorCallback();
+                                                               }
+                                                       } );
+                                               }
+                                       };
+                               }
+
+                               // Create the abort callback
+                               callback = callback( "abort" );
+
+                               try {
+
+                                       // Do send the request (this may raise an exception)
+                                       xhr.send( options.hasContent && options.data || null );
+                               } catch ( e ) {
+
+                                       // #14683: Only rethrow if this hasn't been notified as an error yet
+                                       if ( callback ) {
+                                               throw e;
+                                       }
+                               }
+                       },
+
+                       abort: function() {
+                               if ( callback ) {
+                                       callback();
+                               }
+                       }
+               };
+       }
+} );
+
+
+
+
+// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
+jQuery.ajaxPrefilter( function( s ) {
+       if ( s.crossDomain ) {
+               s.contents.script = false;
+       }
+} );
+
+// Install script dataType
+jQuery.ajaxSetup( {
+       accepts: {
+               script: "text/javascript, application/javascript, " +
+                       "application/ecmascript, application/x-ecmascript"
+       },
+       contents: {
+               script: /\b(?:java|ecma)script\b/
+       },
+       converters: {
+               "text script": function( text ) {
+                       jQuery.globalEval( text );
+                       return text;
+               }
+       }
+} );
+
+// Handle cache's special case and crossDomain
+jQuery.ajaxPrefilter( "script", function( s ) {
+       if ( s.cache === undefined ) {
+               s.cache = false;
+       }
+       if ( s.crossDomain ) {
+               s.type = "GET";
+       }
+} );
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function( s ) {
+
+       // This transport only deals with cross domain requests
+       if ( s.crossDomain ) {
+               var script, callback;
+               return {
+                       send: function( _, complete ) {
+                               script = jQuery( "<script>" ).prop( {
+                                       charset: s.scriptCharset,
+                                       src: s.url
+                               } ).on(
+                                       "load error",
+                                       callback = function( evt ) {
+                                               script.remove();
+                                               callback = null;
+                                               if ( evt ) {
+                                                       complete( evt.type === "error" ? 404 : 200, evt.type );
+                                               }
+                                       }
+                               );
+
+                               // Use native DOM manipulation to avoid our domManip AJAX trickery
+                               document.head.appendChild( script[ 0 ] );
+                       },
+                       abort: function() {
+                               if ( callback ) {
+                                       callback();
+                               }
+                       }
+               };
+       }
+} );
+
+
+
+
+var oldCallbacks = [],
+       rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup( {
+       jsonp: "callback",
+       jsonpCallback: function() {
+               var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
+               this[ callback ] = true;
+               return callback;
+       }
+} );
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+       var callbackName, overwritten, responseContainer,
+               jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+                       "url" :
+                       typeof s.data === "string" &&
+                               ( s.contentType || "" )
+                                       .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
+                               rjsonp.test( s.data ) && "data"
+               );
+
+       // Handle iff the expected data type is "jsonp" or we have a parameter to set
+       if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+               // Get callback name, remembering preexisting value associated with it
+               callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
+                       s.jsonpCallback() :
+                       s.jsonpCallback;
+
+               // Insert callback into url or form data
+               if ( jsonProp ) {
+                       s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+               } else if ( s.jsonp !== false ) {
+                       s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+               }
+
+               // Use data converter to retrieve json after script execution
+               s.converters[ "script json" ] = function() {
+                       if ( !responseContainer ) {
+                               jQuery.error( callbackName + " was not called" );
+                       }
+                       return responseContainer[ 0 ];
+               };
+
+               // Force json dataType
+               s.dataTypes[ 0 ] = "json";
+
+               // Install callback
+               overwritten = window[ callbackName ];
+               window[ callbackName ] = function() {
+                       responseContainer = arguments;
+               };
+
+               // Clean-up function (fires after converters)
+               jqXHR.always( function() {
+
+                       // If previous value didn't exist - remove it
+                       if ( overwritten === undefined ) {
+                               jQuery( window ).removeProp( callbackName );
+
+                       // Otherwise restore preexisting value
+                       } else {
+                               window[ callbackName ] = overwritten;
+                       }
+
+                       // Save back as free
+                       if ( s[ callbackName ] ) {
+
+                               // Make sure that re-using the options doesn't screw things around
+                               s.jsonpCallback = originalSettings.jsonpCallback;
+
+                               // Save the callback name for future use
+                               oldCallbacks.push( callbackName );
+                       }
+
+                       // Call if it was a function and we have a response
+                       if ( responseContainer && jQuery.isFunction( overwritten ) ) {
+                               overwritten( responseContainer[ 0 ] );
+                       }
+
+                       responseContainer = overwritten = undefined;
+               } );
+
+               // Delegate to script
+               return "script";
+       }
+} );
+
+
+
+
+// Support: Safari 8 only
+// In Safari 8 documents created via document.implementation.createHTMLDocument
+// collapse sibling forms: the second one becomes a child of the first one.
+// Because of that, this security measure has to be disabled in Safari 8.
+// https://bugs.webkit.org/show_bug.cgi?id=137337
+support.createHTMLDocument = ( function() {
+       var body = document.implementation.createHTMLDocument( "" ).body;
+       body.innerHTML = "<form></form><form></form>";
+       return body.childNodes.length === 2;
+} )();
+
+
+// Argument "data" should be string of html
+// context (optional): If specified, the fragment will be created in this context,
+// defaults to document
+// keepScripts (optional): If true, will include scripts passed in the html string
+jQuery.parseHTML = function( data, context, keepScripts ) {
+       if ( typeof data !== "string" ) {
+               return [];
+       }
+       if ( typeof context === "boolean" ) {
+               keepScripts = context;
+               context = false;
+       }
+
+       var base, parsed, scripts;
+
+       if ( !context ) {
+
+               // Stop scripts or inline event handlers from being executed immediately
+               // by using document.implementation
+               if ( support.createHTMLDocument ) {
+                       context = document.implementation.createHTMLDocument( "" );
+
+                       // Set the base href for the created document
+                       // so any parsed elements with URLs
+                       // are based on the document's URL (gh-2965)
+                       base = context.createElement( "base" );
+                       base.href = document.location.href;
+                       context.head.appendChild( base );
+               } else {
+                       context = document;
+               }
+       }
+
+       parsed = rsingleTag.exec( data );
+       scripts = !keepScripts && [];
+
+       // Single tag
+       if ( parsed ) {
+               return [ context.createElement( parsed[ 1 ] ) ];
+       }
+
+       parsed = buildFragment( [ data ], context, scripts );
+
+       if ( scripts && scripts.length ) {
+               jQuery( scripts ).remove();
+       }
+
+       return jQuery.merge( [], parsed.childNodes );
+};
+
+
+/**
+ * Load a url into a page
+ */
+jQuery.fn.load = function( url, params, callback ) {
+       var selector, type, response,
+               self = this,
+               off = url.indexOf( " " );
+
+       if ( off > -1 ) {
+               selector = stripAndCollapse( url.slice( off ) );
+               url = url.slice( 0, off );
+       }
+
+       // If it's a function
+       if ( jQuery.isFunction( params ) ) {
+
+               // We assume that it's the callback
+               callback = params;
+               params = undefined;
+
+       // Otherwise, build a param string
+       } else if ( params && typeof params === "object" ) {
+               type = "POST";
+       }
+
+       // If we have elements to modify, make the request
+       if ( self.length > 0 ) {
+               jQuery.ajax( {
+                       url: url,
+
+                       // If "type" variable is undefined, then "GET" method will be used.
+                       // Make value of this field explicit since
+                       // user can override it through ajaxSetup method
+                       type: type || "GET",
+                       dataType: "html",
+                       data: params
+               } ).done( function( responseText ) {
+
+                       // Save response for use in complete callback
+                       response = arguments;
+
+                       self.html( selector ?
+
+                               // If a selector was specified, locate the right elements in a dummy div
+                               // Exclude scripts to avoid IE 'Permission Denied' errors
+                               jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+                               // Otherwise use the full result
+                               responseText );
+
+               // If the request succeeds, this function gets "data", "status", "jqXHR"
+               // but they are ignored because response was set above.
+               // If it fails, this function gets "jqXHR", "status", "error"
+               } ).always( callback && function( jqXHR, status ) {
+                       self.each( function() {
+                               callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
+                       } );
+               } );
+       }
+
+       return this;
+};
+
+
+
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [
+       "ajaxStart",
+       "ajaxStop",
+       "ajaxComplete",
+       "ajaxError",
+       "ajaxSuccess",
+       "ajaxSend"
+], function( i, type ) {
+       jQuery.fn[ type ] = function( fn ) {
+               return this.on( type, fn );
+       };
+} );
+
+
+
+
+jQuery.expr.pseudos.animated = function( elem ) {
+       return jQuery.grep( jQuery.timers, function( fn ) {
+               return elem === fn.elem;
+       } ).length;
+};
+
+
+
+
+jQuery.offset = {
+       setOffset: function( elem, options, i ) {
+               var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
+                       position = jQuery.css( elem, "position" ),
+                       curElem = jQuery( elem ),
+                       props = {};
+
+               // Set position first, in-case top/left are set even on static elem
+               if ( position === "static" ) {
+                       elem.style.position = "relative";
+               }
+
+               curOffset = curElem.offset();
+               curCSSTop = jQuery.css( elem, "top" );
+               curCSSLeft = jQuery.css( elem, "left" );
+               calculatePosition = ( position === "absolute" || position === "fixed" ) &&
+                       ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
+
+               // Need to be able to calculate position if either
+               // top or left is auto and position is either absolute or fixed
+               if ( calculatePosition ) {
+                       curPosition = curElem.position();
+                       curTop = curPosition.top;
+                       curLeft = curPosition.left;
+
+               } else {
+                       curTop = parseFloat( curCSSTop ) || 0;
+                       curLeft = parseFloat( curCSSLeft ) || 0;
+               }
+
+               if ( jQuery.isFunction( options ) ) {
+
+                       // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
+                       options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
+               }
+
+               if ( options.top != null ) {
+                       props.top = ( options.top - curOffset.top ) + curTop;
+               }
+               if ( options.left != null ) {
+                       props.left = ( options.left - curOffset.left ) + curLeft;
+               }
+
+               if ( "using" in options ) {
+                       options.using.call( elem, props );
+
+               } else {
+                       curElem.css( props );
+               }
+       }
+};
+
+jQuery.fn.extend( {
+       offset: function( options ) {
+
+               // Preserve chaining for setter
+               if ( arguments.length ) {
+                       return options === undefined ?
+                               this :
+                               this.each( function( i ) {
+                                       jQuery.offset.setOffset( this, options, i );
+                               } );
+               }
+
+               var doc, docElem, rect, win,
+                       elem = this[ 0 ];
+
+               if ( !elem ) {
+                       return;
+               }
+
+               // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
+               // Support: IE <=11 only
+               // Running getBoundingClientRect on a
+               // disconnected node in IE throws an error
+               if ( !elem.getClientRects().length ) {
+                       return { top: 0, left: 0 };
+               }
+
+               rect = elem.getBoundingClientRect();
+
+               doc = elem.ownerDocument;
+               docElem = doc.documentElement;
+               win = doc.defaultView;
+
+               return {
+                       top: rect.top + win.pageYOffset - docElem.clientTop,
+                       left: rect.left + win.pageXOffset - docElem.clientLeft
+               };
+       },
+
+       position: function() {
+               if ( !this[ 0 ] ) {
+                       return;
+               }
+
+               var offsetParent, offset,
+                       elem = this[ 0 ],
+                       parentOffset = { top: 0, left: 0 };
+
+               // Fixed elements are offset from window (parentOffset = {top:0, left: 0},
+               // because it is its only offset parent
+               if ( jQuery.css( elem, "position" ) === "fixed" ) {
+
+                       // Assume getBoundingClientRect is there when computed position is fixed
+                       offset = elem.getBoundingClientRect();
+
+               } else {
+
+                       // Get *real* offsetParent
+                       offsetParent = this.offsetParent();
+
+                       // Get correct offsets
+                       offset = this.offset();
+                       if ( !nodeName( offsetParent[ 0 ], "html" ) ) {
+                               parentOffset = offsetParent.offset();
+                       }
+
+                       // Add offsetParent borders
+                       parentOffset = {
+                               top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ),
+                               left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true )
+                       };
+               }
+
+               // Subtract parent offsets and element margins
+               return {
+                       top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+                       left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
+               };
+       },
+
+       // This method will return documentElement in the following cases:
+       // 1) For the element inside the iframe without offsetParent, this method will return
+       //    documentElement of the parent window
+       // 2) For the hidden or detached element
+       // 3) For body or html element, i.e. in case of the html node - it will return itself
+       //
+       // but those exceptions were never presented as a real life use-cases
+       // and might be considered as more preferable results.
+       //
+       // This logic, however, is not guaranteed and can change at any point in the future
+       offsetParent: function() {
+               return this.map( function() {
+                       var offsetParent = this.offsetParent;
+
+                       while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+                               offsetParent = offsetParent.offsetParent;
+                       }
+
+                       return offsetParent || documentElement;
+               } );
+       }
+} );
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
+       var top = "pageYOffset" === prop;
+
+       jQuery.fn[ method ] = function( val ) {
+               return access( this, function( elem, method, val ) {
+
+                       // Coalesce documents and windows
+                       var win;
+                       if ( jQuery.isWindow( elem ) ) {
+                               win = elem;
+                       } else if ( elem.nodeType === 9 ) {
+                               win = elem.defaultView;
+                       }
+
+                       if ( val === undefined ) {
+                               return win ? win[ prop ] : elem[ method ];
+                       }
+
+                       if ( win ) {
+                               win.scrollTo(
+                                       !top ? val : win.pageXOffset,
+                                       top ? val : win.pageYOffset
+                               );
+
+                       } else {
+                               elem[ method ] = val;
+                       }
+               }, method, val, arguments.length );
+       };
+} );
+
+// Support: Safari <=7 - 9.1, Chrome <=37 - 49
+// Add the top/left cssHooks using jQuery.fn.position
+// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
+// getComputedStyle returns percent when specified for top/left/bottom/right;
+// rather than make the css module depend on the offset module, just check for it here
+jQuery.each( [ "top", "left" ], function( i, prop ) {
+       jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
+               function( elem, computed ) {
+                       if ( computed ) {
+                               computed = curCSS( elem, prop );
+
+                               // If curCSS returns percentage, fallback to offset
+                               return rnumnonpx.test( computed ) ?
+                                       jQuery( elem ).position()[ prop ] + "px" :
+                                       computed;
+                       }
+               }
+       );
+} );
+
+
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+       jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
+               function( defaultExtra, funcName ) {
+
+               // Margin is only for outerHeight, outerWidth
+               jQuery.fn[ funcName ] = function( margin, value ) {
+                       var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+                               extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+                       return access( this, function( elem, type, value ) {
+                               var doc;
+
+                               if ( jQuery.isWindow( elem ) ) {
+
+                                       // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
+                                       return funcName.indexOf( "outer" ) === 0 ?
+                                               elem[ "inner" + name ] :
+                                               elem.document.documentElement[ "client" + name ];
+                               }
+
+                               // Get document width or height
+                               if ( elem.nodeType === 9 ) {
+                                       doc = elem.documentElement;
+
+                                       // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
+                                       // whichever is greatest
+                                       return Math.max(
+                                               elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+                                               elem.body[ "offset" + name ], doc[ "offset" + name ],
+                                               doc[ "client" + name ]
+                                       );
+                               }
+
+                               return value === undefined ?
+
+                                       // Get width or height on the element, requesting but not forcing parseFloat
+                                       jQuery.css( elem, type, extra ) :
+
+                                       // Set width or height on the element
+                                       jQuery.style( elem, type, value, extra );
+                       }, type, chainable ? margin : undefined, chainable );
+               };
+       } );
+} );
+
+
+jQuery.fn.extend( {
+
+       bind: function( types, data, fn ) {
+               return this.on( types, null, data, fn );
+       },
+       unbind: function( types, fn ) {
+               return this.off( types, null, fn );
+       },
+
+       delegate: function( selector, types, data, fn ) {
+               return this.on( types, selector, data, fn );
+       },
+       undelegate: function( selector, types, fn ) {
+
+               // ( namespace ) or ( selector, types [, fn] )
+               return arguments.length === 1 ?
+                       this.off( selector, "**" ) :
+                       this.off( types, selector || "**", fn );
+       }
+} );
+
+jQuery.holdReady = function( hold ) {
+       if ( hold ) {
+               jQuery.readyWait++;
+       } else {
+               jQuery.ready( true );
+       }
+};
+jQuery.isArray = Array.isArray;
+jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
+
+
+
+
+// Register as a named AMD module, since jQuery can be concatenated with other
+// files that may use define, but not via a proper concatenation script that
+// understands anonymous AMD modules. A named AMD is safest and most robust
+// way to register. Lowercase jquery is used because AMD module names are
+// derived from file names, and jQuery is normally delivered in a lowercase
+// file name. Do this after creating the global so that if an AMD module wants
+// to call noConflict to hide this version of jQuery, it will work.
+
+// Note that for maximum portability, libraries that are not jQuery should
+// declare themselves as anonymous modules, and avoid setting a global if an
+// AMD loader is present. jQuery is a special case. For more information, see
+// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
+
+if ( typeof define === "function" && define.amd ) {
+       define( "jquery", [], function() {
+               return jQuery;
+       } );
+}
+
+
+
+
+var
+
+       // Map over jQuery in case of overwrite
+       _jQuery = window.jQuery,
+
+       // Map over the $ in case of overwrite
+       _$ = window.$;
+
+jQuery.noConflict = function( deep ) {
+       if ( window.$ === jQuery ) {
+               window.$ = _$;
+       }
+
+       if ( deep && window.jQuery === jQuery ) {
+               window.jQuery = _jQuery;
+       }
+
+       return jQuery;
+};
+
+// Expose jQuery and $ identifiers, even in AMD
+// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
+// and CommonJS for browser emulators (#13566)
+if ( !noGlobal ) {
+       window.jQuery = window.$ = jQuery;
+}
+
+
+
+
+return jQuery;
+} );
+</script>
+        <script>/*!
+ * Bootstrap v3.3.7 (http://getbootstrap.com)
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under the MIT license
+ */
+
+if (typeof jQuery === 'undefined') {
+  throw new Error('Bootstrap\'s JavaScript requires jQuery')
+}
+
++function ($) {
+  'use strict';
+  var version = $.fn.jquery.split(' ')[0].split('.')
+  if ((version[0] < 2 && version[1] < 9) || (version[0] == 1 && version[1] == 9 && version[2] < 1) || (version[0] > 3)) {
+    throw new Error('Bootstrap\'s JavaScript requires jQuery version 1.9.1 or higher, but lower than version 4')
+  }
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: transition.js v3.3.7
+ * http://getbootstrap.com/javascript/#transitions
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // CSS TRANSITION SUPPORT (Shoutout: http://www.modernizr.com/)
+  // ============================================================
+
+  function transitionEnd() {
+    var el = document.createElement('bootstrap')
+
+    var transEndEventNames = {
+      WebkitTransition : 'webkitTransitionEnd',
+      MozTransition    : 'transitionend',
+      OTransition      : 'oTransitionEnd otransitionend',
+      transition       : 'transitionend'
+    }
+
+    for (var name in transEndEventNames) {
+      if (el.style[name] !== undefined) {
+        return { end: transEndEventNames[name] }
+      }
+    }
+
+    return false // explicit for ie8 (  ._.)
+  }
+
+  // http://blog.alexmaccaw.com/css-transitions
+  $.fn.emulateTransitionEnd = function (duration) {
+    var called = false
+    var $el = this
+    $(this).one('bsTransitionEnd', function () { called = true })
+    var callback = function () { if (!called) $($el).trigger($.support.transition.end) }
+    setTimeout(callback, duration)
+    return this
+  }
+
+  $(function () {
+    $.support.transition = transitionEnd()
+
+    if (!$.support.transition) return
+
+    $.event.special.bsTransitionEnd = {
+      bindType: $.support.transition.end,
+      delegateType: $.support.transition.end,
+      handle: function (e) {
+        if ($(e.target).is(this)) return e.handleObj.handler.apply(this, arguments)
+      }
+    }
+  })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: alert.js v3.3.7
+ * http://getbootstrap.com/javascript/#alerts
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // ALERT CLASS DEFINITION
+  // ======================
+
+  var dismiss = '[data-dismiss="alert"]'
+  var Alert   = function (el) {
+    $(el).on('click', dismiss, this.close)
+  }
+
+  Alert.VERSION = '3.3.7'
+
+  Alert.TRANSITION_DURATION = 150
+
+  Alert.prototype.close = function (e) {
+    var $this    = $(this)
+    var selector = $this.attr('data-target')
+
+    if (!selector) {
+      selector = $this.attr('href')
+      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+    }
+
+    var $parent = $(selector === '#' ? [] : selector)
+
+    if (e) e.preventDefault()
+
+    if (!$parent.length) {
+      $parent = $this.closest('.alert')
+    }
+
+    $parent.trigger(e = $.Event('close.bs.alert'))
+
+    if (e.isDefaultPrevented()) return
+
+    $parent.removeClass('in')
+
+    function removeElement() {
+      // detach from parent, fire event then clean up data
+      $parent.detach().trigger('closed.bs.alert').remove()
+    }
+
+    $.support.transition && $parent.hasClass('fade') ?
+      $parent
+        .one('bsTransitionEnd', removeElement)
+        .emulateTransitionEnd(Alert.TRANSITION_DURATION) :
+      removeElement()
+  }
+
+
+  // ALERT PLUGIN DEFINITION
+  // =======================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this = $(this)
+      var data  = $this.data('bs.alert')
+
+      if (!data) $this.data('bs.alert', (data = new Alert(this)))
+      if (typeof option == 'string') data[option].call($this)
+    })
+  }
+
+  var old = $.fn.alert
+
+  $.fn.alert             = Plugin
+  $.fn.alert.Constructor = Alert
+
+
+  // ALERT NO CONFLICT
+  // =================
+
+  $.fn.alert.noConflict = function () {
+    $.fn.alert = old
+    return this
+  }
+
+
+  // ALERT DATA-API
+  // ==============
+
+  $(document).on('click.bs.alert.data-api', dismiss, Alert.prototype.close)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: button.js v3.3.7
+ * http://getbootstrap.com/javascript/#buttons
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // BUTTON PUBLIC CLASS DEFINITION
+  // ==============================
+
+  var Button = function (element, options) {
+    this.$element  = $(element)
+    this.options   = $.extend({}, Button.DEFAULTS, options)
+    this.isLoading = false
+  }
+
+  Button.VERSION  = '3.3.7'
+
+  Button.DEFAULTS = {
+    loadingText: 'loading...'
+  }
+
+  Button.prototype.setState = function (state) {
+    var d    = 'disabled'
+    var $el  = this.$element
+    var val  = $el.is('input') ? 'val' : 'html'
+    var data = $el.data()
+
+    state += 'Text'
+
+    if (data.resetText == null) $el.data('resetText', $el[val]())
+
+    // push to event loop to allow forms to submit
+    setTimeout($.proxy(function () {
+      $el[val](data[state] == null ? this.options[state] : data[state])
+
+      if (state == 'loadingText') {
+        this.isLoading = true
+        $el.addClass(d).attr(d, d).prop(d, true)
+      } else if (this.isLoading) {
+        this.isLoading = false
+        $el.removeClass(d).removeAttr(d).prop(d, false)
+      }
+    }, this), 0)
+  }
+
+  Button.prototype.toggle = function () {
+    var changed = true
+    var $parent = this.$element.closest('[data-toggle="buttons"]')
+
+    if ($parent.length) {
+      var $input = this.$element.find('input')
+      if ($input.prop('type') == 'radio') {
+        if ($input.prop('checked')) changed = false
+        $parent.find('.active').removeClass('active')
+        this.$element.addClass('active')
+      } else if ($input.prop('type') == 'checkbox') {
+        if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
+        this.$element.toggleClass('active')
+      }
+      $input.prop('checked', this.$element.hasClass('active'))
+      if (changed) $input.trigger('change')
+    } else {
+      this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
+      this.$element.toggleClass('active')
+    }
+  }
+
+
+  // BUTTON PLUGIN DEFINITION
+  // ========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.button')
+      var options = typeof option == 'object' && option
+
+      if (!data) $this.data('bs.button', (data = new Button(this, options)))
+
+      if (option == 'toggle') data.toggle()
+      else if (option) data.setState(option)
+    })
+  }
+
+  var old = $.fn.button
+
+  $.fn.button             = Plugin
+  $.fn.button.Constructor = Button
+
+
+  // BUTTON NO CONFLICT
+  // ==================
+
+  $.fn.button.noConflict = function () {
+    $.fn.button = old
+    return this
+  }
+
+
+  // BUTTON DATA-API
+  // ===============
+
+  $(document)
+    .on('click.bs.button.data-api', '[data-toggle^="button"]', function (e) {
+      var $btn = $(e.target).closest('.btn')
+      Plugin.call($btn, 'toggle')
+      if (!($(e.target).is('input[type="radio"], input[type="checkbox"]'))) {
+        // Prevent double click on radios, and the double selections (so cancellation) on checkboxes
+        e.preventDefault()
+        // The target component still receive the focus
+        if ($btn.is('input,button')) $btn.trigger('focus')
+        else $btn.find('input:visible,button:visible').first().trigger('focus')
+      }
+    })
+    .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
+      $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
+    })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: carousel.js v3.3.7
+ * http://getbootstrap.com/javascript/#carousel
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // CAROUSEL CLASS DEFINITION
+  // =========================
+
+  var Carousel = function (element, options) {
+    this.$element    = $(element)
+    this.$indicators = this.$element.find('.carousel-indicators')
+    this.options     = options
+    this.paused      = null
+    this.sliding     = null
+    this.interval    = null
+    this.$active     = null
+    this.$items      = null
+
+    this.options.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))
+
+    this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element
+      .on('mouseenter.bs.carousel', $.proxy(this.pause, this))
+      .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
+  }
+
+  Carousel.VERSION  = '3.3.7'
+
+  Carousel.TRANSITION_DURATION = 600
+
+  Carousel.DEFAULTS = {
+    interval: 5000,
+    pause: 'hover',
+    wrap: true,
+    keyboard: true
+  }
+
+  Carousel.prototype.keydown = function (e) {
+    if (/input|textarea/i.test(e.target.tagName)) return
+    switch (e.which) {
+      case 37: this.prev(); break
+      case 39: this.next(); break
+      default: return
+    }
+
+    e.preventDefault()
+  }
+
+  Carousel.prototype.cycle = function (e) {
+    e || (this.paused = false)
+
+    this.interval && clearInterval(this.interval)
+
+    this.options.interval
+      && !this.paused
+      && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
+
+    return this
+  }
+
+  Carousel.prototype.getItemIndex = function (item) {
+    this.$items = item.parent().children('.item')
+    return this.$items.index(item || this.$active)
+  }
+
+  Carousel.prototype.getItemForDirection = function (direction, active) {
+    var activeIndex = this.getItemIndex(active)
+    var willWrap = (direction == 'prev' && activeIndex === 0)
+                || (direction == 'next' && activeIndex == (this.$items.length - 1))
+    if (willWrap && !this.options.wrap) return active
+    var delta = direction == 'prev' ? -1 : 1
+    var itemIndex = (activeIndex + delta) % this.$items.length
+    return this.$items.eq(itemIndex)
+  }
+
+  Carousel.prototype.to = function (pos) {
+    var that        = this
+    var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))
+
+    if (pos > (this.$items.length - 1) || pos < 0) return
+
+    if (this.sliding)       return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, "slid"
+    if (activeIndex == pos) return this.pause().cycle()
+
+    return this.slide(pos > activeIndex ? 'next' : 'prev', this.$items.eq(pos))
+  }
+
+  Carousel.prototype.pause = function (e) {
+    e || (this.paused = true)
+
+    if (this.$element.find('.next, .prev').length && $.support.transition) {
+      this.$element.trigger($.support.transition.end)
+      this.cycle(true)
+    }
+
+    this.interval = clearInterval(this.interval)
+
+    return this
+  }
+
+  Carousel.prototype.next = function () {
+    if (this.sliding) return
+    return this.slide('next')
+  }
+
+  Carousel.prototype.prev = function () {
+    if (this.sliding) return
+    return this.slide('prev')
+  }
+
+  Carousel.prototype.slide = function (type, next) {
+    var $active   = this.$element.find('.item.active')
+    var $next     = next || this.getItemForDirection(type, $active)
+    var isCycling = this.interval
+    var direction = type == 'next' ? 'left' : 'right'
+    var that      = this
+
+    if ($next.hasClass('active')) return (this.sliding = false)
+
+    var relatedTarget = $next[0]
+    var slideEvent = $.Event('slide.bs.carousel', {
+      relatedTarget: relatedTarget,
+      direction: direction
+    })
+    this.$element.trigger(slideEvent)
+    if (slideEvent.isDefaultPrevented()) return
+
+    this.sliding = true
+
+    isCycling && this.pause()
+
+    if (this.$indicators.length) {
+      this.$indicators.find('.active').removeClass('active')
+      var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
+      $nextIndicator && $nextIndicator.addClass('active')
+    }
+
+    var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"
+    if ($.support.transition && this.$element.hasClass('slide')) {
+      $next.addClass(type)
+      $next[0].offsetWidth // force reflow
+      $active.addClass(direction)
+      $next.addClass(direction)
+      $active
+        .one('bsTransitionEnd', function () {
+          $next.removeClass([type, direction].join(' ')).addClass('active')
+          $active.removeClass(['active', direction].join(' '))
+          that.sliding = false
+          setTimeout(function () {
+            that.$element.trigger(slidEvent)
+          }, 0)
+        })
+        .emulateTransitionEnd(Carousel.TRANSITION_DURATION)
+    } else {
+      $active.removeClass('active')
+      $next.addClass('active')
+      this.sliding = false
+      this.$element.trigger(slidEvent)
+    }
+
+    isCycling && this.cycle()
+
+    return this
+  }
+
+
+  // CAROUSEL PLUGIN DEFINITION
+  // ==========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.carousel')
+      var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option)
+      var action  = typeof option == 'string' ? option : options.slide
+
+      if (!data) $this.data('bs.carousel', (data = new Carousel(this, options)))
+      if (typeof option == 'number') data.to(option)
+      else if (action) data[action]()
+      else if (options.interval) data.pause().cycle()
+    })
+  }
+
+  var old = $.fn.carousel
+
+  $.fn.carousel             = Plugin
+  $.fn.carousel.Constructor = Carousel
+
+
+  // CAROUSEL NO CONFLICT
+  // ====================
+
+  $.fn.carousel.noConflict = function () {
+    $.fn.carousel = old
+    return this
+  }
+
+
+  // CAROUSEL DATA-API
+  // =================
+
+  var clickHandler = function (e) {
+    var href
+    var $this   = $(this)
+    var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) // strip for ie7
+    if (!$target.hasClass('carousel')) return
+    var options = $.extend({}, $target.data(), $this.data())
+    var slideIndex = $this.attr('data-slide-to')
+    if (slideIndex) options.interval = false
+
+    Plugin.call($target, options)
+
+    if (slideIndex) {
+      $target.data('bs.carousel').to(slideIndex)
+    }
+
+    e.preventDefault()
+  }
+
+  $(document)
+    .on('click.bs.carousel.data-api', '[data-slide]', clickHandler)
+    .on('click.bs.carousel.data-api', '[data-slide-to]', clickHandler)
+
+  $(window).on('load', function () {
+    $('[data-ride="carousel"]').each(function () {
+      var $carousel = $(this)
+      Plugin.call($carousel, $carousel.data())
+    })
+  })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: collapse.js v3.3.7
+ * http://getbootstrap.com/javascript/#collapse
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+/* jshint latedef: false */
+
++function ($) {
+  'use strict';
+
+  // COLLAPSE PUBLIC CLASS DEFINITION
+  // ================================
+
+  var Collapse = function (element, options) {
+    this.$element      = $(element)
+    this.options       = $.extend({}, Collapse.DEFAULTS, options)
+    this.$trigger      = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
+                           '[data-toggle="collapse"][data-target="#' + element.id + '"]')
+    this.transitioning = null
+
+    if (this.options.parent) {
+      this.$parent = this.getParent()
+    } else {
+      this.addAriaAndCollapsedClass(this.$element, this.$trigger)
+    }
+
+    if (this.options.toggle) this.toggle()
+  }
+
+  Collapse.VERSION  = '3.3.7'
+
+  Collapse.TRANSITION_DURATION = 350
+
+  Collapse.DEFAULTS = {
+    toggle: true
+  }
+
+  Collapse.prototype.dimension = function () {
+    var hasWidth = this.$element.hasClass('width')
+    return hasWidth ? 'width' : 'height'
+  }
+
+  Collapse.prototype.show = function () {
+    if (this.transitioning || this.$element.hasClass('in')) return
+
+    var activesData
+    var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
+
+    if (actives && actives.length) {
+      activesData = actives.data('bs.collapse')
+      if (activesData && activesData.transitioning) return
+    }
+
+    var startEvent = $.Event('show.bs.collapse')
+    this.$element.trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) return
+
+    if (actives && actives.length) {
+      Plugin.call(actives, 'hide')
+      activesData || actives.data('bs.collapse', null)
+    }
+
+    var dimension = this.dimension()
+
+    this.$element
+      .removeClass('collapse')
+      .addClass('collapsing')[dimension](0)
+      .attr('aria-expanded', true)
+
+    this.$trigger
+      .removeClass('collapsed')
+      .attr('aria-expanded', true)
+
+    this.transitioning = 1
+
+    var complete = function () {
+      this.$element
+        .removeClass('collapsing')
+        .addClass('collapse in')[dimension]('')
+      this.transitioning = 0
+      this.$element
+        .trigger('shown.bs.collapse')
+    }
+
+    if (!$.support.transition) return complete.call(this)
+
+    var scrollSize = $.camelCase(['scroll', dimension].join('-'))
+
+    this.$element
+      .one('bsTransitionEnd', $.proxy(complete, this))
+      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
+  }
+
+  Collapse.prototype.hide = function () {
+    if (this.transitioning || !this.$element.hasClass('in')) return
+
+    var startEvent = $.Event('hide.bs.collapse')
+    this.$element.trigger(startEvent)
+    if (startEvent.isDefaultPrevented()) return
+
+    var dimension = this.dimension()
+
+    this.$element[dimension](this.$element[dimension]())[0].offsetHeight
+
+    this.$element
+      .addClass('collapsing')
+      .removeClass('collapse in')
+      .attr('aria-expanded', false)
+
+    this.$trigger
+      .addClass('collapsed')
+      .attr('aria-expanded', false)
+
+    this.transitioning = 1
+
+    var complete = function () {
+      this.transitioning = 0
+      this.$element
+        .removeClass('collapsing')
+        .addClass('collapse')
+        .trigger('hidden.bs.collapse')
+    }
+
+    if (!$.support.transition) return complete.call(this)
+
+    this.$element
+      [dimension](0)
+      .one('bsTransitionEnd', $.proxy(complete, this))
+      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
+  }
+
+  Collapse.prototype.toggle = function () {
+    this[this.$element.hasClass('in') ? 'hide' : 'show']()
+  }
+
+  Collapse.prototype.getParent = function () {
+    return $(this.options.parent)
+      .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
+      .each($.proxy(function (i, element) {
+        var $element = $(element)
+        this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
+      }, this))
+      .end()
+  }
+
+  Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
+    var isOpen = $element.hasClass('in')
+
+    $element.attr('aria-expanded', isOpen)
+    $trigger
+      .toggleClass('collapsed', !isOpen)
+      .attr('aria-expanded', isOpen)
+  }
+
+  function getTargetFromTrigger($trigger) {
+    var href
+    var target = $trigger.attr('data-target')
+      || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
+
+    return $(target)
+  }
+
+
+  // COLLAPSE PLUGIN DEFINITION
+  // ==========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.collapse')
+      var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+      if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
+      if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.collapse
+
+  $.fn.collapse             = Plugin
+  $.fn.collapse.Constructor = Collapse
+
+
+  // COLLAPSE NO CONFLICT
+  // ====================
+
+  $.fn.collapse.noConflict = function () {
+    $.fn.collapse = old
+    return this
+  }
+
+
+  // COLLAPSE DATA-API
+  // =================
+
+  $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
+    var $this   = $(this)
+
+    if (!$this.attr('data-target')) e.preventDefault()
+
+    var $target = getTargetFromTrigger($this)
+    var data    = $target.data('bs.collapse')
+    var option  = data ? 'toggle' : $this.data()
+
+    Plugin.call($target, option)
+  })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: dropdown.js v3.3.7
+ * http://getbootstrap.com/javascript/#dropdowns
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // DROPDOWN CLASS DEFINITION
+  // =========================
+
+  var backdrop = '.dropdown-backdrop'
+  var toggle   = '[data-toggle="dropdown"]'
+  var Dropdown = function (element) {
+    $(element).on('click.bs.dropdown', this.toggle)
+  }
+
+  Dropdown.VERSION = '3.3.7'
+
+  function getParent($this) {
+    var selector = $this.attr('data-target')
+
+    if (!selector) {
+      selector = $this.attr('href')
+      selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+    }
+
+    var $parent = selector && $(selector)
+
+    return $parent && $parent.length ? $parent : $this.parent()
+  }
+
+  function clearMenus(e) {
+    if (e && e.which === 3) return
+    $(backdrop).remove()
+    $(toggle).each(function () {
+      var $this         = $(this)
+      var $parent       = getParent($this)
+      var relatedTarget = { relatedTarget: this }
+
+      if (!$parent.hasClass('open')) return
+
+      if (e && e.type == 'click' && /input|textarea/i.test(e.target.tagName) && $.contains($parent[0], e.target)) return
+
+      $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))
+
+      if (e.isDefaultPrevented()) return
+
+      $this.attr('aria-expanded', 'false')
+      $parent.removeClass('open').trigger($.Event('hidden.bs.dropdown', relatedTarget))
+    })
+  }
+
+  Dropdown.prototype.toggle = function (e) {
+    var $this = $(this)
+
+    if ($this.is('.disabled, :disabled')) return
+
+    var $parent  = getParent($this)
+    var isActive = $parent.hasClass('open')
+
+    clearMenus()
+
+    if (!isActive) {
+      if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {
+        // if mobile we use a backdrop because click events don't delegate
+        $(document.createElement('div'))
+          .addClass('dropdown-backdrop')
+          .insertAfter($(this))
+          .on('click', clearMenus)
+      }
+
+      var relatedTarget = { relatedTarget: this }
+      $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))
+
+      if (e.isDefaultPrevented()) return
+
+      $this
+        .trigger('focus')
+        .attr('aria-expanded', 'true')
+
+      $parent
+        .toggleClass('open')
+        .trigger($.Event('shown.bs.dropdown', relatedTarget))
+    }
+
+    return false
+  }
+
+  Dropdown.prototype.keydown = function (e) {
+    if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return
+
+    var $this = $(this)
+
+    e.preventDefault()
+    e.stopPropagation()
+
+    if ($this.is('.disabled, :disabled')) return
+
+    var $parent  = getParent($this)
+    var isActive = $parent.hasClass('open')
+
+    if (!isActive && e.which != 27 || isActive && e.which == 27) {
+      if (e.which == 27) $parent.find(toggle).trigger('focus')
+      return $this.trigger('click')
+    }
+
+    var desc = ' li:not(.disabled):visible a'
+    var $items = $parent.find('.dropdown-menu' + desc)
+
+    if (!$items.length) return
+
+    var index = $items.index(e.target)
+
+    if (e.which == 38 && index > 0)                 index--         // up
+    if (e.which == 40 && index < $items.length - 1) index++         // down
+    if (!~index)                                    index = 0
+
+    $items.eq(index).trigger('focus')
+  }
+
+
+  // DROPDOWN PLUGIN DEFINITION
+  // ==========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this = $(this)
+      var data  = $this.data('bs.dropdown')
+
+      if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))
+      if (typeof option == 'string') data[option].call($this)
+    })
+  }
+
+  var old = $.fn.dropdown
+
+  $.fn.dropdown             = Plugin
+  $.fn.dropdown.Constructor = Dropdown
+
+
+  // DROPDOWN NO CONFLICT
+  // ====================
+
+  $.fn.dropdown.noConflict = function () {
+    $.fn.dropdown = old
+    return this
+  }
+
+
+  // APPLY TO STANDARD DROPDOWN ELEMENTS
+  // ===================================
+
+  $(document)
+    .on('click.bs.dropdown.data-api', clearMenus)
+    .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
+    .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)
+    .on('keydown.bs.dropdown.data-api', toggle, Dropdown.prototype.keydown)
+    .on('keydown.bs.dropdown.data-api', '.dropdown-menu', Dropdown.prototype.keydown)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: modal.js v3.3.7
+ * http://getbootstrap.com/javascript/#modals
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // MODAL CLASS DEFINITION
+  // ======================
+
+  var Modal = function (element, options) {
+    this.options             = options
+    this.$body               = $(document.body)
+    this.$element            = $(element)
+    this.$dialog             = this.$element.find('.modal-dialog')
+    this.$backdrop           = null
+    this.isShown             = null
+    this.originalBodyPad     = null
+    this.scrollbarWidth      = 0
+    this.ignoreBackdropClick = false
+
+    if (this.options.remote) {
+      this.$element
+        .find('.modal-content')
+        .load(this.options.remote, $.proxy(function () {
+          this.$element.trigger('loaded.bs.modal')
+        }, this))
+    }
+  }
+
+  Modal.VERSION  = '3.3.7'
+
+  Modal.TRANSITION_DURATION = 300
+  Modal.BACKDROP_TRANSITION_DURATION = 150
+
+  Modal.DEFAULTS = {
+    backdrop: true,
+    keyboard: true,
+    show: true
+  }
+
+  Modal.prototype.toggle = function (_relatedTarget) {
+    return this.isShown ? this.hide() : this.show(_relatedTarget)
+  }
+
+  Modal.prototype.show = function (_relatedTarget) {
+    var that = this
+    var e    = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })
+
+    this.$element.trigger(e)
+
+    if (this.isShown || e.isDefaultPrevented()) return
+
+    this.isShown = true
+
+    this.checkScrollbar()
+    this.setScrollbar()
+    this.$body.addClass('modal-open')
+
+    this.escape()
+    this.resize()
+
+    this.$element.on('click.dismiss.bs.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this))
+
+    this.$dialog.on('mousedown.dismiss.bs.modal', function () {
+      that.$element.one('mouseup.dismiss.bs.modal', function (e) {
+        if ($(e.target).is(that.$element)) that.ignoreBackdropClick = true
+      })
+    })
+
+    this.backdrop(function () {
+      var transition = $.support.transition && that.$element.hasClass('fade')
+
+      if (!that.$element.parent().length) {
+        that.$element.appendTo(that.$body) // don't move modals dom position
+      }
+
+      that.$element
+        .show()
+        .scrollTop(0)
+
+      that.adjustDialog()
+
+      if (transition) {
+        that.$element[0].offsetWidth // force reflow
+      }
+
+      that.$element.addClass('in')
+
+      that.enforceFocus()
+
+      var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })
+
+      transition ?
+        that.$dialog // wait for modal to slide in
+          .one('bsTransitionEnd', function () {
+            that.$element.trigger('focus').trigger(e)
+          })
+          .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
+        that.$element.trigger('focus').trigger(e)
+    })
+  }
+
+  Modal.prototype.hide = function (e) {
+    if (e) e.preventDefault()
+
+    e = $.Event('hide.bs.modal')
+
+    this.$element.trigger(e)
+
+    if (!this.isShown || e.isDefaultPrevented()) return
+
+    this.isShown = false
+
+    this.escape()
+    this.resize()
+
+    $(document).off('focusin.bs.modal')
+
+    this.$element
+      .removeClass('in')
+      .off('click.dismiss.bs.modal')
+      .off('mouseup.dismiss.bs.modal')
+
+    this.$dialog.off('mousedown.dismiss.bs.modal')
+
+    $.support.transition && this.$element.hasClass('fade') ?
+      this.$element
+        .one('bsTransitionEnd', $.proxy(this.hideModal, this))
+        .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
+      this.hideModal()
+  }
+
+  Modal.prototype.enforceFocus = function () {
+    $(document)
+      .off('focusin.bs.modal') // guard against infinite focus loop
+      .on('focusin.bs.modal', $.proxy(function (e) {
+        if (document !== e.target &&
+            this.$element[0] !== e.target &&
+            !this.$element.has(e.target).length) {
+          this.$element.trigger('focus')
+        }
+      }, this))
+  }
+
+  Modal.prototype.escape = function () {
+    if (this.isShown && this.options.keyboard) {
+      this.$element.on('keydown.dismiss.bs.modal', $.proxy(function (e) {
+        e.which == 27 && this.hide()
+      }, this))
+    } else if (!this.isShown) {
+      this.$element.off('keydown.dismiss.bs.modal')
+    }
+  }
+
+  Modal.prototype.resize = function () {
+    if (this.isShown) {
+      $(window).on('resize.bs.modal', $.proxy(this.handleUpdate, this))
+    } else {
+      $(window).off('resize.bs.modal')
+    }
+  }
+
+  Modal.prototype.hideModal = function () {
+    var that = this
+    this.$element.hide()
+    this.backdrop(function () {
+      that.$body.removeClass('modal-open')
+      that.resetAdjustments()
+      that.resetScrollbar()
+      that.$element.trigger('hidden.bs.modal')
+    })
+  }
+
+  Modal.prototype.removeBackdrop = function () {
+    this.$backdrop && this.$backdrop.remove()
+    this.$backdrop = null
+  }
+
+  Modal.prototype.backdrop = function (callback) {
+    var that = this
+    var animate = this.$element.hasClass('fade') ? 'fade' : ''
+
+    if (this.isShown && this.options.backdrop) {
+      var doAnimate = $.support.transition && animate
+
+      this.$backdrop = $(document.createElement('div'))
+        .addClass('modal-backdrop ' + animate)
+        .appendTo(this.$body)
+
+      this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {
+        if (this.ignoreBackdropClick) {
+          this.ignoreBackdropClick = false
+          return
+        }
+        if (e.target !== e.currentTarget) return
+        this.options.backdrop == 'static'
+          ? this.$element[0].focus()
+          : this.hide()
+      }, this))
+
+      if (doAnimate) this.$backdrop[0].offsetWidth // force reflow
+
+      this.$backdrop.addClass('in')
+
+      if (!callback) return
+
+      doAnimate ?
+        this.$backdrop
+          .one('bsTransitionEnd', callback)
+          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
+        callback()
+
+    } else if (!this.isShown && this.$backdrop) {
+      this.$backdrop.removeClass('in')
+
+      var callbackRemove = function () {
+        that.removeBackdrop()
+        callback && callback()
+      }
+      $.support.transition && this.$element.hasClass('fade') ?
+        this.$backdrop
+          .one('bsTransitionEnd', callbackRemove)
+          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
+        callbackRemove()
+
+    } else if (callback) {
+      callback()
+    }
+  }
+
+  // these following methods are used to handle overflowing modals
+
+  Modal.prototype.handleUpdate = function () {
+    this.adjustDialog()
+  }
+
+  Modal.prototype.adjustDialog = function () {
+    var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight
+
+    this.$element.css({
+      paddingLeft:  !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',
+      paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''
+    })
+  }
+
+  Modal.prototype.resetAdjustments = function () {
+    this.$element.css({
+      paddingLeft: '',
+      paddingRight: ''
+    })
+  }
+
+  Modal.prototype.checkScrollbar = function () {
+    var fullWindowWidth = window.innerWidth
+    if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8
+      var documentElementRect = document.documentElement.getBoundingClientRect()
+      fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left)
+    }
+    this.bodyIsOverflowing = document.body.clientWidth < fullWindowWidth
+    this.scrollbarWidth = this.measureScrollbar()
+  }
+
+  Modal.prototype.setScrollbar = function () {
+    var bodyPad = parseInt((this.$body.css('padding-right') || 0), 10)
+    this.originalBodyPad = document.body.style.paddingRight || ''
+    if (this.bodyIsOverflowing) this.$body.css('padding-right', bodyPad + this.scrollbarWidth)
+  }
+
+  Modal.prototype.resetScrollbar = function () {
+    this.$body.css('padding-right', this.originalBodyPad)
+  }
+
+  Modal.prototype.measureScrollbar = function () { // thx walsh
+    var scrollDiv = document.createElement('div')
+    scrollDiv.className = 'modal-scrollbar-measure'
+    this.$body.append(scrollDiv)
+    var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth
+    this.$body[0].removeChild(scrollDiv)
+    return scrollbarWidth
+  }
+
+
+  // MODAL PLUGIN DEFINITION
+  // =======================
+
+  function Plugin(option, _relatedTarget) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.modal')
+      var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)
+
+      if (!data) $this.data('bs.modal', (data = new Modal(this, options)))
+      if (typeof option == 'string') data[option](_relatedTarget)
+      else if (options.show) data.show(_relatedTarget)
+    })
+  }
+
+  var old = $.fn.modal
+
+  $.fn.modal             = Plugin
+  $.fn.modal.Constructor = Modal
+
+
+  // MODAL NO CONFLICT
+  // =================
+
+  $.fn.modal.noConflict = function () {
+    $.fn.modal = old
+    return this
+  }
+
+
+  // MODAL DATA-API
+  // ==============
+
+  $(document).on('click.bs.modal.data-api', '[data-toggle="modal"]', function (e) {
+    var $this   = $(this)
+    var href    = $this.attr('href')
+    var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) // strip for ie7
+    var option  = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())
+
+    if ($this.is('a')) e.preventDefault()
+
+    $target.one('show.bs.modal', function (showEvent) {
+      if (showEvent.isDefaultPrevented()) return // only register focus restorer if modal will actually get shown
+      $target.one('hidden.bs.modal', function () {
+        $this.is(':visible') && $this.trigger('focus')
+      })
+    })
+    Plugin.call($target, option, this)
+  })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: tooltip.js v3.3.7
+ * http://getbootstrap.com/javascript/#tooltip
+ * Inspired by the original jQuery.tipsy by Jason Frame
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // TOOLTIP PUBLIC CLASS DEFINITION
+  // ===============================
+
+  var Tooltip = function (element, options) {
+    this.type       = null
+    this.options    = null
+    this.enabled    = null
+    this.timeout    = null
+    this.hoverState = null
+    this.$element   = null
+    this.inState    = null
+
+    this.init('tooltip', element, options)
+  }
+
+  Tooltip.VERSION  = '3.3.7'
+
+  Tooltip.TRANSITION_DURATION = 150
+
+  Tooltip.DEFAULTS = {
+    animation: true,
+    placement: 'top',
+    selector: false,
+    template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
+    trigger: 'hover focus',
+    title: '',
+    delay: 0,
+    html: false,
+    container: false,
+    viewport: {
+      selector: 'body',
+      padding: 0
+    }
+  }
+
+  Tooltip.prototype.init = function (type, element, options) {
+    this.enabled   = true
+    this.type      = type
+    this.$element  = $(element)
+    this.options   = this.getOptions(options)
+    this.$viewport = this.options.viewport && $($.isFunction(this.options.viewport) ? this.options.viewport.call(this, this.$element) : (this.options.viewport.selector || this.options.viewport))
+    this.inState   = { click: false, hover: false, focus: false }
+
+    if (this.$element[0] instanceof document.constructor && !this.options.selector) {
+      throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
+    }
+
+    var triggers = this.options.trigger.split(' ')
+
+    for (var i = triggers.length; i--;) {
+      var trigger = triggers[i]
+
+      if (trigger == 'click') {
+        this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
+      } else if (trigger != 'manual') {
+        var eventIn  = trigger == 'hover' ? 'mouseenter' : 'focusin'
+        var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
+
+        this.$element.on(eventIn  + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
+        this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
+      }
+    }
+
+    this.options.selector ?
+      (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
+      this.fixTitle()
+  }
+
+  Tooltip.prototype.getDefaults = function () {
+    return Tooltip.DEFAULTS
+  }
+
+  Tooltip.prototype.getOptions = function (options) {
+    options = $.extend({}, this.getDefaults(), this.$element.data(), options)
+
+    if (options.delay && typeof options.delay == 'number') {
+      options.delay = {
+        show: options.delay,
+        hide: options.delay
+      }
+    }
+
+    return options
+  }
+
+  Tooltip.prototype.getDelegateOptions = function () {
+    var options  = {}
+    var defaults = this.getDefaults()
+
+    this._options && $.each(this._options, function (key, value) {
+      if (defaults[key] != value) options[key] = value
+    })
+
+    return options
+  }
+
+  Tooltip.prototype.enter = function (obj) {
+    var self = obj instanceof this.constructor ?
+      obj : $(obj.currentTarget).data('bs.' + this.type)
+
+    if (!self) {
+      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
+      $(obj.currentTarget).data('bs.' + this.type, self)
+    }
+
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusin' ? 'focus' : 'hover'] = true
+    }
+
+    if (self.tip().hasClass('in') || self.hoverState == 'in') {
+      self.hoverState = 'in'
+      return
+    }
+
+    clearTimeout(self.timeout)
+
+    self.hoverState = 'in'
+
+    if (!self.options.delay || !self.options.delay.show) return self.show()
+
+    self.timeout = setTimeout(function () {
+      if (self.hoverState == 'in') self.show()
+    }, self.options.delay.show)
+  }
+
+  Tooltip.prototype.isInStateTrue = function () {
+    for (var key in this.inState) {
+      if (this.inState[key]) return true
+    }
+
+    return false
+  }
+
+  Tooltip.prototype.leave = function (obj) {
+    var self = obj instanceof this.constructor ?
+      obj : $(obj.currentTarget).data('bs.' + this.type)
+
+    if (!self) {
+      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
+      $(obj.currentTarget).data('bs.' + this.type, self)
+    }
+
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusout' ? 'focus' : 'hover'] = false
+    }
+
+    if (self.isInStateTrue()) return
+
+    clearTimeout(self.timeout)
+
+    self.hoverState = 'out'
+
+    if (!self.options.delay || !self.options.delay.hide) return self.hide()
+
+    self.timeout = setTimeout(function () {
+      if (self.hoverState == 'out') self.hide()
+    }, self.options.delay.hide)
+  }
+
+  Tooltip.prototype.show = function () {
+    var e = $.Event('show.bs.' + this.type)
+
+    if (this.hasContent() && this.enabled) {
+      this.$element.trigger(e)
+
+      var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])
+      if (e.isDefaultPrevented() || !inDom) return
+      var that = this
+
+      var $tip = this.tip()
+
+      var tipId = this.getUID(this.type)
+
+      this.setContent()
+      $tip.attr('id', tipId)
+      this.$element.attr('aria-describedby', tipId)
+
+      if (this.options.animation) $tip.addClass('fade')
+
+      var placement = typeof this.options.placement == 'function' ?
+        this.options.placement.call(this, $tip[0], this.$element[0]) :
+        this.options.placement
+
+      var autoToken = /\s?auto?\s?/i
+      var autoPlace = autoToken.test(placement)
+      if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
+
+      $tip
+        .detach()
+        .css({ top: 0, left: 0, display: 'block' })
+        .addClass(placement)
+        .data('bs.' + this.type, this)
+
+      this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
+      this.$element.trigger('inserted.bs.' + this.type)
+
+      var pos          = this.getPosition()
+      var actualWidth  = $tip[0].offsetWidth
+      var actualHeight = $tip[0].offsetHeight
+
+      if (autoPlace) {
+        var orgPlacement = placement
+        var viewportDim = this.getPosition(this.$viewport)
+
+        placement = placement == 'bottom' && pos.bottom + actualHeight > viewportDim.bottom ? 'top'    :
+                    placement == 'top'    && pos.top    - actualHeight < viewportDim.top    ? 'bottom' :
+                    placement == 'right'  && pos.right  + actualWidth  > viewportDim.width  ? 'left'   :
+                    placement == 'left'   && pos.left   - actualWidth  < viewportDim.left   ? 'right'  :
+                    placement
+
+        $tip
+          .removeClass(orgPlacement)
+          .addClass(placement)
+      }
+
+      var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
+
+      this.applyPlacement(calculatedOffset, placement)
+
+      var complete = function () {
+        var prevHoverState = that.hoverState
+        that.$element.trigger('shown.bs.' + that.type)
+        that.hoverState = null
+
+        if (prevHoverState == 'out') that.leave(that)
+      }
+
+      $.support.transition && this.$tip.hasClass('fade') ?
+        $tip
+          .one('bsTransitionEnd', complete)
+          .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
+        complete()
+    }
+  }
+
+  Tooltip.prototype.applyPlacement = function (offset, placement) {
+    var $tip   = this.tip()
+    var width  = $tip[0].offsetWidth
+    var height = $tip[0].offsetHeight
+
+    // manually read margins because getBoundingClientRect includes difference
+    var marginTop = parseInt($tip.css('margin-top'), 10)
+    var marginLeft = parseInt($tip.css('margin-left'), 10)
+
+    // we must check for NaN for ie 8/9
+    if (isNaN(marginTop))  marginTop  = 0
+    if (isNaN(marginLeft)) marginLeft = 0
+
+    offset.top  += marginTop
+    offset.left += marginLeft
+
+    // $.fn.offset doesn't round pixel values
+    // so we use setOffset directly with our own function B-0
+    $.offset.setOffset($tip[0], $.extend({
+      using: function (props) {
+        $tip.css({
+          top: Math.round(props.top),
+          left: Math.round(props.left)
+        })
+      }
+    }, offset), 0)
+
+    $tip.addClass('in')
+
+    // check to see if placing tip in new offset caused the tip to resize itself
+    var actualWidth  = $tip[0].offsetWidth
+    var actualHeight = $tip[0].offsetHeight
+
+    if (placement == 'top' && actualHeight != height) {
+      offset.top = offset.top + height - actualHeight
+    }
+
+    var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)
+
+    if (delta.left) offset.left += delta.left
+    else offset.top += delta.top
+
+    var isVertical          = /top|bottom/.test(placement)
+    var arrowDelta          = isVertical ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight
+    var arrowOffsetPosition = isVertical ? 'offsetWidth' : 'offsetHeight'
+
+    $tip.offset(offset)
+    this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], isVertical)
+  }
+
+  Tooltip.prototype.replaceArrow = function (delta, dimension, isVertical) {
+    this.arrow()
+      .css(isVertical ? 'left' : 'top', 50 * (1 - delta / dimension) + '%')
+      .css(isVertical ? 'top' : 'left', '')
+  }
+
+  Tooltip.prototype.setContent = function () {
+    var $tip  = this.tip()
+    var title = this.getTitle()
+
+    $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
+    $tip.removeClass('fade in top bottom left right')
+  }
+
+  Tooltip.prototype.hide = function (callback) {
+    var that = this
+    var $tip = $(this.$tip)
+    var e    = $.Event('hide.bs.' + this.type)
+
+    function complete() {
+      if (that.hoverState != 'in') $tip.detach()
+      if (that.$element) { // TODO: Check whether guarding this code with this `if` is really necessary.
+        that.$element
+          .removeAttr('aria-describedby')
+          .trigger('hidden.bs.' + that.type)
+      }
+      callback && callback()
+    }
+
+    this.$element.trigger(e)
+
+    if (e.isDefaultPrevented()) return
+
+    $tip.removeClass('in')
+
+    $.support.transition && $tip.hasClass('fade') ?
+      $tip
+        .one('bsTransitionEnd', complete)
+        .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
+      complete()
+
+    this.hoverState = null
+
+    return this
+  }
+
+  Tooltip.prototype.fixTitle = function () {
+    var $e = this.$element
+    if ($e.attr('title') || typeof $e.attr('data-original-title') != 'string') {
+      $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
+    }
+  }
+
+  Tooltip.prototype.hasContent = function () {
+    return this.getTitle()
+  }
+
+  Tooltip.prototype.getPosition = function ($element) {
+    $element   = $element || this.$element
+
+    var el     = $element[0]
+    var isBody = el.tagName == 'BODY'
+
+    var elRect    = el.getBoundingClientRect()
+    if (elRect.width == null) {
+      // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093
+      elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })
+    }
+    var isSvg = window.SVGElement && el instanceof window.SVGElement
+    // Avoid using $.offset() on SVGs since it gives incorrect results in jQuery 3.
+    // See https://github.com/twbs/bootstrap/issues/20280
+    var elOffset  = isBody ? { top: 0, left: 0 } : (isSvg ? null : $element.offset())
+    var scroll    = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }
+    var outerDims = isBody ? { width: $(window).width(), height: $(window).height() } : null
+
+    return $.extend({}, elRect, scroll, outerDims, elOffset)
+  }
+
+  Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
+    return placement == 'bottom' ? { top: pos.top + pos.height,   left: pos.left + pos.width / 2 - actualWidth / 2 } :
+           placement == 'top'    ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :
+           placement == 'left'   ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
+        /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }
+
+  }
+
+  Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {
+    var delta = { top: 0, left: 0 }
+    if (!this.$viewport) return delta
+
+    var viewportPadding = this.options.viewport && this.options.viewport.padding || 0
+    var viewportDimensions = this.getPosition(this.$viewport)
+
+    if (/right|left/.test(placement)) {
+      var topEdgeOffset    = pos.top - viewportPadding - viewportDimensions.scroll
+      var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight
+      if (topEdgeOffset < viewportDimensions.top) { // top overflow
+        delta.top = viewportDimensions.top - topEdgeOffset
+      } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow
+        delta.top = viewportDimensions.top + viewportDimensions.height - bottomEdgeOffset
+      }
+    } else {
+      var leftEdgeOffset  = pos.left - viewportPadding
+      var rightEdgeOffset = pos.left + viewportPadding + actualWidth
+      if (leftEdgeOffset < viewportDimensions.left) { // left overflow
+        delta.left = viewportDimensions.left - leftEdgeOffset
+      } else if (rightEdgeOffset > viewportDimensions.right) { // right overflow
+        delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset
+      }
+    }
+
+    return delta
+  }
+
+  Tooltip.prototype.getTitle = function () {
+    var title
+    var $e = this.$element
+    var o  = this.options
+
+    title = $e.attr('data-original-title')
+      || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)
+
+    return title
+  }
+
+  Tooltip.prototype.getUID = function (prefix) {
+    do prefix += ~~(Math.random() * 1000000)
+    while (document.getElementById(prefix))
+    return prefix
+  }
+
+  Tooltip.prototype.tip = function () {
+    if (!this.$tip) {
+      this.$tip = $(this.options.template)
+      if (this.$tip.length != 1) {
+        throw new Error(this.type + ' `template` option must consist of exactly 1 top-level element!')
+      }
+    }
+    return this.$tip
+  }
+
+  Tooltip.prototype.arrow = function () {
+    return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))
+  }
+
+  Tooltip.prototype.enable = function () {
+    this.enabled = true
+  }
+
+  Tooltip.prototype.disable = function () {
+    this.enabled = false
+  }
+
+  Tooltip.prototype.toggleEnabled = function () {
+    this.enabled = !this.enabled
+  }
+
+  Tooltip.prototype.toggle = function (e) {
+    var self = this
+    if (e) {
+      self = $(e.currentTarget).data('bs.' + this.type)
+      if (!self) {
+        self = new this.constructor(e.currentTarget, this.getDelegateOptions())
+        $(e.currentTarget).data('bs.' + this.type, self)
+      }
+    }
+
+    if (e) {
+      self.inState.click = !self.inState.click
+      if (self.isInStateTrue()) self.enter(self)
+      else self.leave(self)
+    } else {
+      self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+    }
+  }
+
+  Tooltip.prototype.destroy = function () {
+    var that = this
+    clearTimeout(this.timeout)
+    this.hide(function () {
+      that.$element.off('.' + that.type).removeData('bs.' + that.type)
+      if (that.$tip) {
+        that.$tip.detach()
+      }
+      that.$tip = null
+      that.$arrow = null
+      that.$viewport = null
+      that.$element = null
+    })
+  }
+
+
+  // TOOLTIP PLUGIN DEFINITION
+  // =========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.tooltip')
+      var options = typeof option == 'object' && option
+
+      if (!data && /destroy|hide/.test(option)) return
+      if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.tooltip
+
+  $.fn.tooltip             = Plugin
+  $.fn.tooltip.Constructor = Tooltip
+
+
+  // TOOLTIP NO CONFLICT
+  // ===================
+
+  $.fn.tooltip.noConflict = function () {
+    $.fn.tooltip = old
+    return this
+  }
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: popover.js v3.3.7
+ * http://getbootstrap.com/javascript/#popovers
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // POPOVER PUBLIC CLASS DEFINITION
+  // ===============================
+
+  var Popover = function (element, options) {
+    this.init('popover', element, options)
+  }
+
+  if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')
+
+  Popover.VERSION  = '3.3.7'
+
+  Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {
+    placement: 'right',
+    trigger: 'click',
+    content: '',
+    template: '<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'
+  })
+
+
+  // NOTE: POPOVER EXTENDS tooltip.js
+  // ================================
+
+  Popover.prototype = $.extend({}, $.fn.tooltip.Constructor.prototype)
+
+  Popover.prototype.constructor = Popover
+
+  Popover.prototype.getDefaults = function () {
+    return Popover.DEFAULTS
+  }
+
+  Popover.prototype.setContent = function () {
+    var $tip    = this.tip()
+    var title   = this.getTitle()
+    var content = this.getContent()
+
+    $tip.find('.popover-title')[this.options.html ? 'html' : 'text'](title)
+    $tip.find('.popover-content').children().detach().end()[ // we use append for html objects to maintain js events
+      this.options.html ? (typeof content == 'string' ? 'html' : 'append') : 'text'
+    ](content)
+
+    $tip.removeClass('fade top bottom left right in')
+
+    // IE8 doesn't accept hiding via the `:empty` pseudo selector, we have to do
+    // this manually by checking the contents.
+    if (!$tip.find('.popover-title').html()) $tip.find('.popover-title').hide()
+  }
+
+  Popover.prototype.hasContent = function () {
+    return this.getTitle() || this.getContent()
+  }
+
+  Popover.prototype.getContent = function () {
+    var $e = this.$element
+    var o  = this.options
+
+    return $e.attr('data-content')
+      || (typeof o.content == 'function' ?
+            o.content.call($e[0]) :
+            o.content)
+  }
+
+  Popover.prototype.arrow = function () {
+    return (this.$arrow = this.$arrow || this.tip().find('.arrow'))
+  }
+
+
+  // POPOVER PLUGIN DEFINITION
+  // =========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.popover')
+      var options = typeof option == 'object' && option
+
+      if (!data && /destroy|hide/.test(option)) return
+      if (!data) $this.data('bs.popover', (data = new Popover(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.popover
+
+  $.fn.popover             = Plugin
+  $.fn.popover.Constructor = Popover
+
+
+  // POPOVER NO CONFLICT
+  // ===================
+
+  $.fn.popover.noConflict = function () {
+    $.fn.popover = old
+    return this
+  }
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: scrollspy.js v3.3.7
+ * http://getbootstrap.com/javascript/#scrollspy
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // SCROLLSPY CLASS DEFINITION
+  // ==========================
+
+  function ScrollSpy(element, options) {
+    this.$body          = $(document.body)
+    this.$scrollElement = $(element).is(document.body) ? $(window) : $(element)
+    this.options        = $.extend({}, ScrollSpy.DEFAULTS, options)
+    this.selector       = (this.options.target || '') + ' .nav li > a'
+    this.offsets        = []
+    this.targets        = []
+    this.activeTarget   = null
+    this.scrollHeight   = 0
+
+    this.$scrollElement.on('scroll.bs.scrollspy', $.proxy(this.process, this))
+    this.refresh()
+    this.process()
+  }
+
+  ScrollSpy.VERSION  = '3.3.7'
+
+  ScrollSpy.DEFAULTS = {
+    offset: 10
+  }
+
+  ScrollSpy.prototype.getScrollHeight = function () {
+    return this.$scrollElement[0].scrollHeight || Math.max(this.$body[0].scrollHeight, document.documentElement.scrollHeight)
+  }
+
+  ScrollSpy.prototype.refresh = function () {
+    var that          = this
+    var offsetMethod  = 'offset'
+    var offsetBase    = 0
+
+    this.offsets      = []
+    this.targets      = []
+    this.scrollHeight = this.getScrollHeight()
+
+    if (!$.isWindow(this.$scrollElement[0])) {
+      offsetMethod = 'position'
+      offsetBase   = this.$scrollElement.scrollTop()
+    }
+
+    this.$body
+      .find(this.selector)
+      .map(function () {
+        var $el   = $(this)
+        var href  = $el.data('target') || $el.attr('href')
+        var $href = /^#./.test(href) && $(href)
+
+        return ($href
+          && $href.length
+          && $href.is(':visible')
+          && [[$href[offsetMethod]().top + offsetBase, href]]) || null
+      })
+      .sort(function (a, b) { return a[0] - b[0] })
+      .each(function () {
+        that.offsets.push(this[0])
+        that.targets.push(this[1])
+      })
+  }
+
+  ScrollSpy.prototype.process = function () {
+    var scrollTop    = this.$scrollElement.scrollTop() + this.options.offset
+    var scrollHeight = this.getScrollHeight()
+    var maxScroll    = this.options.offset + scrollHeight - this.$scrollElement.height()
+    var offsets      = this.offsets
+    var targets      = this.targets
+    var activeTarget = this.activeTarget
+    var i
+
+    if (this.scrollHeight != scrollHeight) {
+      this.refresh()
+    }
+
+    if (scrollTop >= maxScroll) {
+      return activeTarget != (i = targets[targets.length - 1]) && this.activate(i)
+    }
+
+    if (activeTarget && scrollTop < offsets[0]) {
+      this.activeTarget = null
+      return this.clear()
+    }
+
+    for (i = offsets.length; i--;) {
+      activeTarget != targets[i]
+        && scrollTop >= offsets[i]
+        && (offsets[i + 1] === undefined || scrollTop < offsets[i + 1])
+        && this.activate(targets[i])
+    }
+  }
+
+  ScrollSpy.prototype.activate = function (target) {
+    this.activeTarget = target
+
+    this.clear()
+
+    var selector = this.selector +
+      '[data-target="' + target + '"],' +
+      this.selector + '[href="' + target + '"]'
+
+    var active = $(selector)
+      .parents('li')
+      .addClass('active')
+
+    if (active.parent('.dropdown-menu').length) {
+      active = active
+        .closest('li.dropdown')
+        .addClass('active')
+    }
+
+    active.trigger('activate.bs.scrollspy')
+  }
+
+  ScrollSpy.prototype.clear = function () {
+    $(this.selector)
+      .parentsUntil(this.options.target, '.active')
+      .removeClass('active')
+  }
+
+
+  // SCROLLSPY PLUGIN DEFINITION
+  // ===========================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.scrollspy')
+      var options = typeof option == 'object' && option
+
+      if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.scrollspy
+
+  $.fn.scrollspy             = Plugin
+  $.fn.scrollspy.Constructor = ScrollSpy
+
+
+  // SCROLLSPY NO CONFLICT
+  // =====================
+
+  $.fn.scrollspy.noConflict = function () {
+    $.fn.scrollspy = old
+    return this
+  }
+
+
+  // SCROLLSPY DATA-API
+  // ==================
+
+  $(window).on('load.bs.scrollspy.data-api', function () {
+    $('[data-spy="scroll"]').each(function () {
+      var $spy = $(this)
+      Plugin.call($spy, $spy.data())
+    })
+  })
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: tab.js v3.3.7
+ * http://getbootstrap.com/javascript/#tabs
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // TAB CLASS DEFINITION
+  // ====================
+
+  var Tab = function (element) {
+    // jscs:disable requireDollarBeforejQueryAssignment
+    this.element = $(element)
+    // jscs:enable requireDollarBeforejQueryAssignment
+  }
+
+  Tab.VERSION = '3.3.7'
+
+  Tab.TRANSITION_DURATION = 150
+
+  Tab.prototype.show = function () {
+    var $this    = this.element
+    var $ul      = $this.closest('ul:not(.dropdown-menu)')
+    var selector = $this.data('target')
+
+    if (!selector) {
+      selector = $this.attr('href')
+      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
+    }
+
+    if ($this.parent('li').hasClass('active')) return
+
+    var $previous = $ul.find('.active:last a')
+    var hideEvent = $.Event('hide.bs.tab', {
+      relatedTarget: $this[0]
+    })
+    var showEvent = $.Event('show.bs.tab', {
+      relatedTarget: $previous[0]
+    })
+
+    $previous.trigger(hideEvent)
+    $this.trigger(showEvent)
+
+    if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) return
+
+    var $target = $(selector)
+
+    this.activate($this.closest('li'), $ul)
+    this.activate($target, $target.parent(), function () {
+      $previous.trigger({
+        type: 'hidden.bs.tab',
+        relatedTarget: $this[0]
+      })
+      $this.trigger({
+        type: 'shown.bs.tab',
+        relatedTarget: $previous[0]
+      })
+    })
+  }
+
+  Tab.prototype.activate = function (element, container, callback) {
+    var $active    = container.find('> .active')
+    var transition = callback
+      && $.support.transition
+      && ($active.length && $active.hasClass('fade') || !!container.find('> .fade').length)
+
+    function next() {
+      $active
+        .removeClass('active')
+        .find('> .dropdown-menu > .active')
+          .removeClass('active')
+        .end()
+        .find('[data-toggle="tab"]')
+          .attr('aria-expanded', false)
+
+      element
+        .addClass('active')
+        .find('[data-toggle="tab"]')
+          .attr('aria-expanded', true)
+
+      if (transition) {
+        element[0].offsetWidth // reflow for transition
+        element.addClass('in')
+      } else {
+        element.removeClass('fade')
+      }
+
+      if (element.parent('.dropdown-menu').length) {
+        element
+          .closest('li.dropdown')
+            .addClass('active')
+          .end()
+          .find('[data-toggle="tab"]')
+            .attr('aria-expanded', true)
+      }
+
+      callback && callback()
+    }
+
+    $active.length && transition ?
+      $active
+        .one('bsTransitionEnd', next)
+        .emulateTransitionEnd(Tab.TRANSITION_DURATION) :
+      next()
+
+    $active.removeClass('in')
+  }
+
+
+  // TAB PLUGIN DEFINITION
+  // =====================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this = $(this)
+      var data  = $this.data('bs.tab')
+
+      if (!data) $this.data('bs.tab', (data = new Tab(this)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.tab
+
+  $.fn.tab             = Plugin
+  $.fn.tab.Constructor = Tab
+
+
+  // TAB NO CONFLICT
+  // ===============
+
+  $.fn.tab.noConflict = function () {
+    $.fn.tab = old
+    return this
+  }
+
+
+  // TAB DATA-API
+  // ============
+
+  var clickHandler = function (e) {
+    e.preventDefault()
+    Plugin.call($(this), 'show')
+  }
+
+  $(document)
+    .on('click.bs.tab.data-api', '[data-toggle="tab"]', clickHandler)
+    .on('click.bs.tab.data-api', '[data-toggle="pill"]', clickHandler)
+
+}(jQuery);
+
+/* ========================================================================
+ * Bootstrap: affix.js v3.3.7
+ * http://getbootstrap.com/javascript/#affix
+ * ========================================================================
+ * Copyright 2011-2016 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+ * ======================================================================== */
+
+
++function ($) {
+  'use strict';
+
+  // AFFIX CLASS DEFINITION
+  // ======================
+
+  var Affix = function (element, options) {
+    this.options = $.extend({}, Affix.DEFAULTS, options)
+
+    this.$target = $(this.options.target)
+      .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))
+      .on('click.bs.affix.data-api',  $.proxy(this.checkPositionWithEventLoop, this))
+
+    this.$element     = $(element)
+    this.affixed      = null
+    this.unpin        = null
+    this.pinnedOffset = null
+
+    this.checkPosition()
+  }
+
+  Affix.VERSION  = '3.3.7'
+
+  Affix.RESET    = 'affix affix-top affix-bottom'
+
+  Affix.DEFAULTS = {
+    offset: 0,
+    target: window
+  }
+
+  Affix.prototype.getState = function (scrollHeight, height, offsetTop, offsetBottom) {
+    var scrollTop    = this.$target.scrollTop()
+    var position     = this.$element.offset()
+    var targetHeight = this.$target.height()
+
+    if (offsetTop != null && this.affixed == 'top') return scrollTop < offsetTop ? 'top' : false
+
+    if (this.affixed == 'bottom') {
+      if (offsetTop != null) return (scrollTop + this.unpin <= position.top) ? false : 'bottom'
+      return (scrollTop + targetHeight <= scrollHeight - offsetBottom) ? false : 'bottom'
+    }
+
+    var initializing   = this.affixed == null
+    var colliderTop    = initializing ? scrollTop : position.top
+    var colliderHeight = initializing ? targetHeight : height
+
+    if (offsetTop != null && scrollTop <= offsetTop) return 'top'
+    if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'
+
+    return false
+  }
+
+  Affix.prototype.getPinnedOffset = function () {
+    if (this.pinnedOffset) return this.pinnedOffset
+    this.$element.removeClass(Affix.RESET).addClass('affix')
+    var scrollTop = this.$target.scrollTop()
+    var position  = this.$element.offset()
+    return (this.pinnedOffset = position.top - scrollTop)
+  }
+
+  Affix.prototype.checkPositionWithEventLoop = function () {
+    setTimeout($.proxy(this.checkPosition, this), 1)
+  }
+
+  Affix.prototype.checkPosition = function () {
+    if (!this.$element.is(':visible')) return
+
+    var height       = this.$element.height()
+    var offset       = this.options.offset
+    var offsetTop    = offset.top
+    var offsetBottom = offset.bottom
+    var scrollHeight = Math.max($(document).height(), $(document.body).height())
+
+    if (typeof offset != 'object')         offsetBottom = offsetTop = offset
+    if (typeof offsetTop == 'function')    offsetTop    = offset.top(this.$element)
+    if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)
+
+    var affix = this.getState(scrollHeight, height, offsetTop, offsetBottom)
+
+    if (this.affixed != affix) {
+      if (this.unpin != null) this.$element.css('top', '')
+
+      var affixType = 'affix' + (affix ? '-' + affix : '')
+      var e         = $.Event(affixType + '.bs.affix')
+
+      this.$element.trigger(e)
+
+      if (e.isDefaultPrevented()) return
+
+      this.affixed = affix
+      this.unpin = affix == 'bottom' ? this.getPinnedOffset() : null
+
+      this.$element
+        .removeClass(Affix.RESET)
+        .addClass(affixType)
+        .trigger(affixType.replace('affix', 'affixed') + '.bs.affix')
+    }
+
+    if (affix == 'bottom') {
+      this.$element.offset({
+        top: scrollHeight - height - offsetBottom
+      })
+    }
+  }
+
+
+  // AFFIX PLUGIN DEFINITION
+  // =======================
+
+  function Plugin(option) {
+    return this.each(function () {
+      var $this   = $(this)
+      var data    = $this.data('bs.affix')
+      var options = typeof option == 'object' && option
+
+      if (!data) $this.data('bs.affix', (data = new Affix(this, options)))
+      if (typeof option == 'string') data[option]()
+    })
+  }
+
+  var old = $.fn.affix
+
+  $.fn.affix             = Plugin
+  $.fn.affix.Constructor = Affix
+
+
+  // AFFIX NO CONFLICT
+  // =================
+
+  $.fn.affix.noConflict = function () {
+    $.fn.affix = old
+    return this
+  }
+
+
+  // AFFIX DATA-API
+  // ==============
+
+  $(window).on('load', function () {
+    $('[data-spy="affix"]').each(function () {
+      var $spy = $(this)
+      var data = $spy.data()
+
+      data.offset = data.offset || {}
+
+      if (data.offsetBottom != null) data.offset.bottom = data.offsetBottom
+      if (data.offsetTop    != null) data.offset.top    = data.offsetTop
+
+      Plugin.call($spy, data)
+    })
+  })
+
+}(jQuery);
+</script>
+        <script>(function() {
+  'use strict';
+
+  /**
+   * Extend an Object with another Object's properties.
+   *
+   * The source objects are specified as additional arguments.
+   *
+   * @param dst Object the object to extend.
+   *
+   * @return Object the final object.
+   */
+  var _extend = function(dst) {
+    var sources = Array.prototype.slice.call(arguments, 1);
+    for (var i=0; i<sources.length; ++i) {
+      var src = sources[i];
+      for (var p in src) {
+        if (src.hasOwnProperty(p)) dst[p] = src[p];
+      }
+    }
+    return dst;
+  };
+
+
+  /**
+   * Defer execution of given function.
+   * @param  {Function} func
+   */
+  var _defer = function(func) {
+    if (typeof setImmediate === 'function') {
+      return setImmediate(func);
+    } else {
+      return setTimeout(func, 0);
+    }
+  };
+
+  /**
+   * Based on the algorithm at http://en.wikipedia.org/wiki/Levenshtein_distance.
+   */
+  var Levenshtein = {
+    /**
+     * Calculate levenshtein distance of the two strings.
+     *
+     * @param str1 String the first string.
+     * @param str2 String the second string.
+     * @return Integer the levenshtein distance (0 and above).
+     */
+    get: function(str1, str2) {
+      // base cases
+      if (str1 === str2) return 0;
+      if (str1.length === 0) return str2.length;
+      if (str2.length === 0) return str1.length;
+
+      // two rows
+      var prevRow  = new Array(str2.length + 1),
+          curCol, nextCol, i, j, tmp;
+
+      // initialise previous row
+      for (i=0; i<prevRow.length; ++i) {
+        prevRow[i] = i;
+      }
+
+      // calculate current row distance from previous row
+      for (i=0; i<str1.length; ++i) {
+        nextCol = i + 1;
+
+        for (j=0; j<str2.length; ++j) {
+          curCol = nextCol;
+
+          // substution
+          nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
+          // insertion
+          tmp = curCol + 1;
+          if (nextCol > tmp) {
+            nextCol = tmp;
+          }
+          // deletion
+          tmp = prevRow[j + 1] + 1;
+          if (nextCol > tmp) {
+            nextCol = tmp;
+          }
+
+          // copy current col value into previous (in preparation for next iteration)
+          prevRow[j] = curCol;
+        }
+
+        // copy last col value into previous (in preparation for next iteration)
+        prevRow[j] = nextCol;
+      }
+
+      return nextCol;
+    },
+
+    /**
+     * Asynchronously calculate levenshtein distance of the two strings.
+     *
+     * @param str1 String the first string.
+     * @param str2 String the second string.
+     * @param cb Function callback function with signature: function(Error err, int distance)
+     * @param [options] Object additional options.
+     * @param [options.progress] Function progress callback with signature: function(percentComplete)
+     */
+    getAsync: function(str1, str2, cb, options) {
+      options = _extend({}, {
+        progress: null
+      }, options);
+
+      // base cases
+      if (str1 === str2) return cb(null, 0);
+      if (str1.length === 0) return cb(null, str2.length);
+      if (str2.length === 0) return cb(null, str1.length);
+
+      // two rows
+      var prevRow  = new Array(str2.length + 1),
+          curCol, nextCol,
+          i, j, tmp,
+          startTime, currentTime;
+
+      // initialise previous row
+      for (i=0; i<prevRow.length; ++i) {
+        prevRow[i] = i;
+      }
+
+      nextCol = 1;
+      i = 0;
+      j = -1;
+
+      var __calculate = function() {
+        // reset timer
+        startTime = new Date().valueOf();
+        currentTime = startTime;
+
+        // keep going until one second has elapsed
+        while (currentTime - startTime < 1000) {
+          // reached end of current row?
+          if (str2.length <= (++j)) {
+            // copy current into previous (in preparation for next iteration)
+            prevRow[j] = nextCol;
+
+            // if already done all chars
+            if (str1.length <= (++i)) {
+              return cb(null, nextCol);
+            }
+            // else if we have more left to do
+            else {
+              nextCol = i + 1;
+              j = 0;
+            }
+          }
+
+          // calculation
+          curCol = nextCol;
+
+          // substution
+          nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
+          // insertion
+          tmp = curCol + 1;
+          if (nextCol > tmp) {
+            nextCol = tmp;
+          }
+          // deletion
+          tmp = prevRow[j + 1] + 1;
+          if (nextCol > tmp) {
+            nextCol = tmp;
+          }
+
+          // copy current into previous (in preparation for next iteration)
+          prevRow[j] = curCol;
+
+          // get current time
+          currentTime = new Date().valueOf();
+        }
+
+        // send a progress update?
+        if (null !== options.progress) {
+          try {
+            options.progress.call(null, (i * 100.0/ str1.length));
+          } catch (err) {
+            return cb('Progress callback: ' + err.toString());
+          }
+        }
+
+        // next iteration
+        _defer(__calculate);
+      };
+
+      __calculate();
+    }
+
+  };
+
+  // amd
+  if (typeof define !== "undefined" && define !== null && define.amd) {
+    define(function() {
+      return Levenshtein;
+    });
+  }
+  // commonjs
+  else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
+    module.exports = Levenshtein;
+  }
+  // web worker
+  else if (typeof self !== "undefined" && typeof self.postMessage === 'function' && typeof self.importScripts === 'function') {
+    self.Levenshtein = Levenshtein;
+  }
+  // browser main thread
+  else if (typeof window !== "undefined" && window !== null) {
+    window.Levenshtein = Levenshtein;
+  }
+}());
+
+</script>
+        <script>/*! kjua v0.1.1 - https://larsjung.de/kjua/ */
+!function(r,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.kjua=t():r.kjua=t()}(this,function(){return function(r){function t(n){if(e[n])return e[n].exports;var o=e[n]={exports:{},id:n,loaded:!1};return r[n].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var e={};return t.m=r,t.c=e,t.p="",t(0)}([function(r,t,e){"use strict";var n=e(1),o=n.createCanvas,i=n.canvasToImg,a=n.dpr,u=e(2),f=e(3),c=e(4);r.exports=function(r){var t=Object.assign({},u,r),e=f(t.text,t.ecLevel,t.minVersion,t.quiet),n=t.ratio||a,l=o(t.size,n),s=l.getContext("2d");return s.scale(n,n),c(e,s,t),"image"===t.render?i(l):l}},function(r,t){"use strict";var e=window,n=e.document,o=e.devicePixelRatio||1,i=function(r){return n.createElement(r)},a=function(r,t){return r.getAttribute(t)},u=function(r,t,e){return r.setAttribute(t,e)},f=function(r,t){var e=i("canvas");return 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+        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bitcoinjs = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
+(function (global){
+'use strict';
+
+// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
+// original notice:
+
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
+function compare(a, b) {
+  if (a === b) {
+    return 0;
+  }
+
+  var x = a.length;
+  var y = b.length;
+
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i];
+      y = b[i];
+      break;
+    }
+  }
+
+  if (x < y) {
+    return -1;
+  }
+  if (y < x) {
+    return 1;
+  }
+  return 0;
+}
+function isBuffer(b) {
+  if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
+    return global.Buffer.isBuffer(b);
+  }
+  return !!(b != null && b._isBuffer);
+}
+
+// based on node assert, original notice:
+
+// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
+//
+// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
+//
+// Originally from narwhal.js (http://narwhaljs.org)
+// Copyright (c) 2009 Thomas Robinson <280north.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the 'Software'), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var util = require('util/');
+var hasOwn = Object.prototype.hasOwnProperty;
+var pSlice = Array.prototype.slice;
+var functionsHaveNames = (function () {
+  return function foo() {}.name === 'foo';
+}());
+function pToString (obj) {
+  return Object.prototype.toString.call(obj);
+}
+function isView(arrbuf) {
+  if (isBuffer(arrbuf)) {
+    return false;
+  }
+  if (typeof global.ArrayBuffer !== 'function') {
+    return false;
+  }
+  if (typeof ArrayBuffer.isView === 'function') {
+    return ArrayBuffer.isView(arrbuf);
+  }
+  if (!arrbuf) {
+    return false;
+  }
+  if (arrbuf instanceof DataView) {
+    return true;
+  }
+  if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
+    return true;
+  }
+  return false;
+}
+// 1. The assert module provides functions that throw
+// AssertionError's when particular conditions are not met. The
+// assert module must conform to the following interface.
+
+var assert = module.exports = ok;
+
+// 2. The AssertionError is defined in assert.
+// new assert.AssertionError({ message: message,
+//                             actual: actual,
+//                             expected: expected })
+
+var regex = /\s*function\s+([^\(\s]*)\s*/;
+// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
+function getName(func) {
+  if (!util.isFunction(func)) {
+    return;
+  }
+  if (functionsHaveNames) {
+    return func.name;
+  }
+  var str = func.toString();
+  var match = str.match(regex);
+  return match && match[1];
+}
+assert.AssertionError = function AssertionError(options) {
+  this.name = 'AssertionError';
+  this.actual = options.actual;
+  this.expected = options.expected;
+  this.operator = options.operator;
+  if (options.message) {
+    this.message = options.message;
+    this.generatedMessage = false;
+  } else {
+    this.message = getMessage(this);
+    this.generatedMessage = true;
+  }
+  var stackStartFunction = options.stackStartFunction || fail;
+  if (Error.captureStackTrace) {
+    Error.captureStackTrace(this, stackStartFunction);
+  } else {
+    // non v8 browsers so we can have a stacktrace
+    var err = new Error();
+    if (err.stack) {
+      var out = err.stack;
+
+      // try to strip useless frames
+      var fn_name = getName(stackStartFunction);
+      var idx = out.indexOf('\n' + fn_name);
+      if (idx >= 0) {
+        // once we have located the function frame
+        // we need to strip out everything before it (and its line)
+        var next_line = out.indexOf('\n', idx + 1);
+        out = out.substring(next_line + 1);
+      }
+
+      this.stack = out;
+    }
+  }
+};
+
+// assert.AssertionError instanceof Error
+util.inherits(assert.AssertionError, Error);
+
+function truncate(s, n) {
+  if (typeof s === 'string') {
+    return s.length < n ? s : s.slice(0, n);
+  } else {
+    return s;
+  }
+}
+function inspect(something) {
+  if (functionsHaveNames || !util.isFunction(something)) {
+    return util.inspect(something);
+  }
+  var rawname = getName(something);
+  var name = rawname ? ': ' + rawname : '';
+  return '[Function' +  name + ']';
+}
+function getMessage(self) {
+  return truncate(inspect(self.actual), 128) + ' ' +
+         self.operator + ' ' +
+         truncate(inspect(self.expected), 128);
+}
+
+// At present only the three keys mentioned above are used and
+// understood by the spec. Implementations or sub modules can pass
+// other keys to the AssertionError's constructor - they will be
+// ignored.
+
+// 3. All of the following functions must throw an AssertionError
+// when a corresponding condition is not met, with a message that
+// may be undefined if not provided.  All assertion methods provide
+// both the actual and expected values to the assertion error for
+// display purposes.
+
+function fail(actual, expected, message, operator, stackStartFunction) {
+  throw new assert.AssertionError({
+    message: message,
+    actual: actual,
+    expected: expected,
+    operator: operator,
+    stackStartFunction: stackStartFunction
+  });
+}
+
+// EXTENSION! allows for well behaved errors defined elsewhere.
+assert.fail = fail;
+
+// 4. Pure assertion tests whether a value is truthy, as determined
+// by !!guard.
+// assert.ok(guard, message_opt);
+// This statement is equivalent to assert.equal(true, !!guard,
+// message_opt);. To test strictly for the value true, use
+// assert.strictEqual(true, guard, message_opt);.
+
+function ok(value, message) {
+  if (!value) fail(value, true, message, '==', assert.ok);
+}
+assert.ok = ok;
+
+// 5. The equality assertion tests shallow, coercive equality with
+// ==.
+// assert.equal(actual, expected, message_opt);
+
+assert.equal = function equal(actual, expected, message) {
+  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
+};
+
+// 6. The non-equality assertion tests for whether two objects are not equal
+// with != assert.notEqual(actual, expected, message_opt);
+
+assert.notEqual = function notEqual(actual, expected, message) {
+  if (actual == expected) {
+    fail(actual, expected, message, '!=', assert.notEqual);
+  }
+};
+
+// 7. The equivalence assertion tests a deep equality relation.
+// assert.deepEqual(actual, expected, message_opt);
+
+assert.deepEqual = function deepEqual(actual, expected, message) {
+  if (!_deepEqual(actual, expected, false)) {
+    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+  }
+};
+
+assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
+  if (!_deepEqual(actual, expected, true)) {
+    fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
+  }
+};
+
+function _deepEqual(actual, expected, strict, memos) {
+  // 7.1. All identical values are equivalent, as determined by ===.
+  if (actual === expected) {
+    return true;
+  } else if (isBuffer(actual) && isBuffer(expected)) {
+    return compare(actual, expected) === 0;
+
+  // 7.2. If the expected value is a Date object, the actual value is
+  // equivalent if it is also a Date object that refers to the same time.
+  } else if (util.isDate(actual) && util.isDate(expected)) {
+    return actual.getTime() === expected.getTime();
+
+  // 7.3 If the expected value is a RegExp object, the actual value is
+  // equivalent if it is also a RegExp object with the same source and
+  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
+  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
+    return actual.source === expected.source &&
+           actual.global === expected.global &&
+           actual.multiline === expected.multiline &&
+           actual.lastIndex === expected.lastIndex &&
+           actual.ignoreCase === expected.ignoreCase;
+
+  // 7.4. Other pairs that do not both pass typeof value == 'object',
+  // equivalence is determined by ==.
+  } else if ((actual === null || typeof actual !== 'object') &&
+             (expected === null || typeof expected !== 'object')) {
+    return strict ? actual === expected : actual == expected;
+
+  // If both values are instances of typed arrays, wrap their underlying
+  // ArrayBuffers in a Buffer each to increase performance
+  // This optimization requires the arrays to have the same type as checked by
+  // Object.prototype.toString (aka pToString). Never perform binary
+  // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
+  // bit patterns are not identical.
+  } else if (isView(actual) && isView(expected) &&
+             pToString(actual) === pToString(expected) &&
+             !(actual instanceof Float32Array ||
+               actual instanceof Float64Array)) {
+    return compare(new Uint8Array(actual.buffer),
+                   new Uint8Array(expected.buffer)) === 0;
+
+  // 7.5 For all other Object pairs, including Array objects, equivalence is
+  // determined by having the same number of owned properties (as verified
+  // with Object.prototype.hasOwnProperty.call), the same set of keys
+  // (although not necessarily the same order), equivalent values for every
+  // corresponding key, and an identical 'prototype' property. Note: this
+  // accounts for both named and indexed properties on Arrays.
+  } else if (isBuffer(actual) !== isBuffer(expected)) {
+    return false;
+  } else {
+    memos = memos || {actual: [], expected: []};
+
+    var actualIndex = memos.actual.indexOf(actual);
+    if (actualIndex !== -1) {
+      if (actualIndex === memos.expected.indexOf(expected)) {
+        return true;
+      }
+    }
+
+    memos.actual.push(actual);
+    memos.expected.push(expected);
+
+    return objEquiv(actual, expected, strict, memos);
+  }
+}
+
+function isArguments(object) {
+  return Object.prototype.toString.call(object) == '[object Arguments]';
+}
+
+function objEquiv(a, b, strict, actualVisitedObjects) {
+  if (a === null || a === undefined || b === null || b === undefined)
+    return false;
+  // if one is a primitive, the other must be same
+  if (util.isPrimitive(a) || util.isPrimitive(b))
+    return a === b;
+  if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
+    return false;
+  var aIsArgs = isArguments(a);
+  var bIsArgs = isArguments(b);
+  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
+    return false;
+  if (aIsArgs) {
+    a = pSlice.call(a);
+    b = pSlice.call(b);
+    return _deepEqual(a, b, strict);
+  }
+  var ka = objectKeys(a);
+  var kb = objectKeys(b);
+  var key, i;
+  // having the same number of owned properties (keys incorporates
+  // hasOwnProperty)
+  if (ka.length !== kb.length)
+    return false;
+  //the same set of keys (although not necessarily the same order),
+  ka.sort();
+  kb.sort();
+  //~~~cheap key test
+  for (i = ka.length - 1; i >= 0; i--) {
+    if (ka[i] !== kb[i])
+      return false;
+  }
+  //equivalent values for every corresponding key, and
+  //~~~possibly expensive deep test
+  for (i = ka.length - 1; i >= 0; i--) {
+    key = ka[i];
+    if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
+      return false;
+  }
+  return true;
+}
+
+// 8. The non-equivalence assertion tests for any deep inequality.
+// assert.notDeepEqual(actual, expected, message_opt);
+
+assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
+  if (_deepEqual(actual, expected, false)) {
+    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+  }
+};
+
+assert.notDeepStrictEqual = notDeepStrictEqual;
+function notDeepStrictEqual(actual, expected, message) {
+  if (_deepEqual(actual, expected, true)) {
+    fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
+  }
+}
+
+
+// 9. The strict equality assertion tests strict equality, as determined by ===.
+// assert.strictEqual(actual, expected, message_opt);
+
+assert.strictEqual = function strictEqual(actual, expected, message) {
+  if (actual !== expected) {
+    fail(actual, expected, message, '===', assert.strictEqual);
+  }
+};
+
+// 10. The strict non-equality assertion tests for strict inequality, as
+// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);
+
+assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
+  if (actual === expected) {
+    fail(actual, expected, message, '!==', assert.notStrictEqual);
+  }
+};
+
+function expectedException(actual, expected) {
+  if (!actual || !expected) {
+    return false;
+  }
+
+  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
+    return expected.test(actual);
+  }
+
+  try {
+    if (actual instanceof expected) {
+      return true;
+    }
+  } catch (e) {
+    // Ignore.  The instanceof check doesn't work for arrow functions.
+  }
+
+  if (Error.isPrototypeOf(expected)) {
+    return false;
+  }
+
+  return expected.call({}, actual) === true;
+}
+
+function _tryBlock(block) {
+  var error;
+  try {
+    block();
+  } catch (e) {
+    error = e;
+  }
+  return error;
+}
+
+function _throws(shouldThrow, block, expected, message) {
+  var actual;
+
+  if (typeof block !== 'function') {
+    throw new TypeError('"block" argument must be a function');
+  }
+
+  if (typeof expected === 'string') {
+    message = expected;
+    expected = null;
+  }
+
+  actual = _tryBlock(block);
+
+  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
+            (message ? ' ' + message : '.');
+
+  if (shouldThrow && !actual) {
+    fail(actual, expected, 'Missing expected exception' + message);
+  }
+
+  var userProvidedMessage = typeof message === 'string';
+  var isUnwantedException = !shouldThrow && util.isError(actual);
+  var isUnexpectedException = !shouldThrow && actual && !expected;
+
+  if ((isUnwantedException &&
+      userProvidedMessage &&
+      expectedException(actual, expected)) ||
+      isUnexpectedException) {
+    fail(actual, expected, 'Got unwanted exception' + message);
+  }
+
+  if ((shouldThrow && actual && expected &&
+      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
+    throw actual;
+  }
+}
+
+// 11. Expected to throw an error:
+// assert.throws(block, Error_opt, message_opt);
+
+assert.throws = function(block, /*optional*/error, /*optional*/message) {
+  _throws(true, block, error, message);
+};
+
+// EXTENSION! This is annoying to write outside this module.
+assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
+  _throws(false, block, error, message);
+};
+
+assert.ifError = function(err) { if (err) throw err; };
+
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    if (hasOwn.call(obj, key)) keys.push(key);
+  }
+  return keys;
+};
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"util/":33}],2:[function(require,module,exports){
+'use strict'
+
+exports.byteLength = byteLength
+exports.toByteArray = toByteArray
+exports.fromByteArray = fromByteArray
+
+var lookup = []
+var revLookup = []
+var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+
+var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+for (var i = 0, len = code.length; i < len; ++i) {
+  lookup[i] = code[i]
+  revLookup[code.charCodeAt(i)] = i
+}
+
+revLookup['-'.charCodeAt(0)] = 62
+revLookup['_'.charCodeAt(0)] = 63
+
+function placeHoldersCount (b64) {
+  var len = b64.length
+  if (len % 4 > 0) {
+    throw new Error('Invalid string. Length must be a multiple of 4')
+  }
+
+  // the number of equal signs (place holders)
+  // if there are two placeholders, than the two characters before it
+  // represent one byte
+  // if there is only one, then the three characters before it represent 2 bytes
+  // this is just a cheap hack to not do indexOf twice
+  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+}
+
+function byteLength (b64) {
+  // base64 is 4/3 + up to two characters of the original data
+  return b64.length * 3 / 4 - placeHoldersCount(b64)
+}
+
+function toByteArray (b64) {
+  var i, j, l, tmp, placeHolders, arr
+  var len = b64.length
+  placeHolders = placeHoldersCount(b64)
+
+  arr = new Arr(len * 3 / 4 - placeHolders)
+
+  // if there are placeholders, only get up to the last complete 4 chars
+  l = placeHolders > 0 ? len - 4 : len
+
+  var L = 0
+
+  for (i = 0, j = 0; i < l; i += 4, j += 3) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
+    arr[L++] = (tmp >> 16) & 0xFF
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  if (placeHolders === 2) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
+    arr[L++] = tmp & 0xFF
+  } else if (placeHolders === 1) {
+    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
+    arr[L++] = (tmp >> 8) & 0xFF
+    arr[L++] = tmp & 0xFF
+  }
+
+  return arr
+}
+
+function tripletToBase64 (num) {
+  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+}
+
+function encodeChunk (uint8, start, end) {
+  var tmp
+  var output = []
+  for (var i = start; i < end; i += 3) {
+    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+    output.push(tripletToBase64(tmp))
+  }
+  return output.join('')
+}
+
+function fromByteArray (uint8) {
+  var tmp
+  var len = uint8.length
+  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
+  var output = ''
+  var parts = []
+  var maxChunkLength = 16383 // must be multiple of 3
+
+  // go through the array every three bytes, we'll deal with trailing stuff later
+  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
+    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  }
+
+  // pad the end with zeros, but make sure to not forget the extra bytes
+  if (extraBytes === 1) {
+    tmp = uint8[len - 1]
+    output += lookup[tmp >> 2]
+    output += lookup[(tmp << 4) & 0x3F]
+    output += '=='
+  } else if (extraBytes === 2) {
+    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
+    output += lookup[tmp >> 10]
+    output += lookup[(tmp >> 4) & 0x3F]
+    output += lookup[(tmp << 2) & 0x3F]
+    output += '='
+  }
+
+  parts.push(output)
+
+  return parts.join('')
+}
+
+},{}],3:[function(require,module,exports){
+
+},{}],4:[function(require,module,exports){
+(function (global){
+'use strict';
+
+var buffer = require('buffer');
+var Buffer = buffer.Buffer;
+var SlowBuffer = buffer.SlowBuffer;
+var MAX_LEN = buffer.kMaxLength || 2147483647;
+exports.alloc = function alloc(size, fill, encoding) {
+  if (typeof Buffer.alloc === 'function') {
+    return Buffer.alloc(size, fill, encoding);
+  }
+  if (typeof encoding === 'number') {
+    throw new TypeError('encoding must not be number');
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size > MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  var enc = encoding;
+  var _fill = fill;
+  if (_fill === undefined) {
+    enc = undefined;
+    _fill = 0;
+  }
+  var buf = new Buffer(size);
+  if (typeof _fill === 'string') {
+    var fillBuf = new Buffer(_fill, enc);
+    var flen = fillBuf.length;
+    var i = -1;
+    while (++i < size) {
+      buf[i] = fillBuf[i % flen];
+    }
+  } else {
+    buf.fill(_fill);
+  }
+  return buf;
+}
+exports.allocUnsafe = function allocUnsafe(size) {
+  if (typeof Buffer.allocUnsafe === 'function') {
+    return Buffer.allocUnsafe(size);
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size > MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  return new Buffer(size);
+}
+exports.from = function from(value, encodingOrOffset, length) {
+  if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) {
+    return Buffer.from(value, encodingOrOffset, length);
+  }
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number');
+  }
+  if (typeof value === 'string') {
+    return new Buffer(value, encodingOrOffset);
+  }
+  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
+    var offset = encodingOrOffset;
+    if (arguments.length === 1) {
+      return new Buffer(value);
+    }
+    if (typeof offset === 'undefined') {
+      offset = 0;
+    }
+    var len = length;
+    if (typeof len === 'undefined') {
+      len = value.byteLength - offset;
+    }
+    if (offset >= value.byteLength) {
+      throw new RangeError('\'offset\' is out of bounds');
+    }
+    if (len > value.byteLength - offset) {
+      throw new RangeError('\'length\' is out of bounds');
+    }
+    return new Buffer(value.slice(offset, offset + len));
+  }
+  if (Buffer.isBuffer(value)) {
+    var out = new Buffer(value.length);
+    value.copy(out, 0, 0, value.length);
+    return out;
+  }
+  if (value) {
+    if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) {
+      return new Buffer(value);
+    }
+    if (value.type === 'Buffer' && Array.isArray(value.data)) {
+      return new Buffer(value.data);
+    }
+  }
+
+  throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.');
+}
+exports.allocUnsafeSlow = function allocUnsafeSlow(size) {
+  if (typeof Buffer.allocUnsafeSlow === 'function') {
+    return Buffer.allocUnsafeSlow(size);
+  }
+  if (typeof size !== 'number') {
+    throw new TypeError('size must be a number');
+  }
+  if (size >= MAX_LEN) {
+    throw new RangeError('size is too large');
+  }
+  return new SlowBuffer(size);
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"buffer":5}],5:[function(require,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
+/* eslint-disable no-proto */
+
+'use strict'
+
+var base64 = require('base64-js')
+var ieee754 = require('ieee754')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+
+var K_MAX_LENGTH = 0x7fffffff
+exports.kMaxLength = K_MAX_LENGTH
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ *   === true    Use Uint8Array implementation (fastest)
+ *   === false   Print warning and recommend using `buffer` v4.x which has an Object
+ *               implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * We report that the browser does not support typed arrays if the are not subclassable
+ * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
+ * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
+ * for __proto__ and has a buggy typed array implementation.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+
+if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
+    typeof console.error === 'function') {
+  console.error(
+    'This browser lacks typed array (Uint8Array) support which is required by ' +
+    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
+  )
+}
+
+function typedArraySupport () {
+  // Can typed array instances can be augmented?
+  try {
+    var arr = new Uint8Array(1)
+    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
+    return arr.foo() === 42
+  } catch (e) {
+    return false
+  }
+}
+
+function createBuffer (length) {
+  if (length > K_MAX_LENGTH) {
+    throw new RangeError('Invalid typed array length')
+  }
+  // Return an augmented `Uint8Array` instance
+  var buf = new Uint8Array(length)
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+/**
+ * The Buffer constructor returns instances of `Uint8Array` that have their
+ * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
+ * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
+ * and the `Uint8Array` methods. Square bracket notation works as expected -- it
+ * returns a single octet.
+ *
+ * The `Uint8Array` prototype remains unmodified.
+ */
+
+function Buffer (arg, encodingOrOffset, length) {
+  // Common case.
+  if (typeof arg === 'number') {
+    if (typeof encodingOrOffset === 'string') {
+      throw new Error(
+        'If encoding is specified then the first argument must be a string'
+      )
+    }
+    return allocUnsafe(arg)
+  }
+  return from(arg, encodingOrOffset, length)
+}
+
+// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
+if (typeof Symbol !== 'undefined' && Symbol.species &&
+    Buffer[Symbol.species] === Buffer) {
+  Object.defineProperty(Buffer, Symbol.species, {
+    value: null,
+    configurable: true,
+    enumerable: false,
+    writable: false
+  })
+}
+
+Buffer.poolSize = 8192 // not used by this implementation
+
+function from (value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
+  }
+
+  if (value instanceof ArrayBuffer) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  return fromObject(value)
+}
+
+/**
+ * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
+ * if value is a number.
+ * Buffer.from(str[, encoding])
+ * Buffer.from(array)
+ * Buffer.from(buffer)
+ * Buffer.from(arrayBuffer[, byteOffset[, length]])
+ **/
+Buffer.from = function (value, encodingOrOffset, length) {
+  return from(value, encodingOrOffset, length)
+}
+
+// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
+// https://github.com/feross/buffer/pull/148
+Buffer.prototype.__proto__ = Uint8Array.prototype
+Buffer.__proto__ = Uint8Array
+
+function assertSize (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('"size" argument must be a number')
+  } else if (size < 0) {
+    throw new RangeError('"size" argument must not be negative')
+  }
+}
+
+function alloc (size, fill, encoding) {
+  assertSize(size)
+  if (size <= 0) {
+    return createBuffer(size)
+  }
+  if (fill !== undefined) {
+    // Only pay attention to encoding if it's a string. This
+    // prevents accidentally sending in a number that would
+    // be interpretted as a start offset.
+    return typeof encoding === 'string'
+      ? createBuffer(size).fill(fill, encoding)
+      : createBuffer(size).fill(fill)
+  }
+  return createBuffer(size)
+}
+
+/**
+ * Creates a new filled Buffer instance.
+ * alloc(size[, fill[, encoding]])
+ **/
+Buffer.alloc = function (size, fill, encoding) {
+  return alloc(size, fill, encoding)
+}
+
+function allocUnsafe (size) {
+  assertSize(size)
+  return createBuffer(size < 0 ? 0 : checked(size) | 0)
+}
+
+/**
+ * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
+ * */
+Buffer.allocUnsafe = function (size) {
+  return allocUnsafe(size)
+}
+/**
+ * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
+ */
+Buffer.allocUnsafeSlow = function (size) {
+  return allocUnsafe(size)
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  var length = byteLength(string, encoding) | 0
+  var buf = createBuffer(length)
+
+  var actual = buf.write(string, encoding)
+
+  if (actual !== length) {
+    // Writing a hex string, for example, that contains invalid characters will
+    // cause everything after the first invalid character to be ignored. (e.g.
+    // 'abxxcd' will be treated as 'ab')
+    buf = buf.slice(0, actual)
+  }
+
+  return buf
+}
+
+function fromArrayLike (array) {
+  var length = array.length < 0 ? 0 : checked(array.length) | 0
+  var buf = createBuffer(length)
+  for (var i = 0; i < length; i += 1) {
+    buf[i] = array[i] & 255
+  }
+  return buf
+}
+
+function fromArrayBuffer (array, byteOffset, length) {
+  if (byteOffset < 0 || array.byteLength < byteOffset) {
+    throw new RangeError('\'offset\' is out of bounds')
+  }
+
+  if (array.byteLength < byteOffset + (length || 0)) {
+    throw new RangeError('\'length\' is out of bounds')
+  }
+
+  var buf
+  if (byteOffset === undefined && length === undefined) {
+    buf = new Uint8Array(array)
+  } else if (length === undefined) {
+    buf = new Uint8Array(array, byteOffset)
+  } else {
+    buf = new Uint8Array(array, byteOffset, length)
+  }
+
+  // Return an augmented `Uint8Array` instance
+  buf.__proto__ = Buffer.prototype
+  return buf
+}
+
+function fromObject (obj) {
+  if (Buffer.isBuffer(obj)) {
+    var len = checked(obj.length) | 0
+    var buf = createBuffer(len)
+
+    if (buf.length === 0) {
+      return buf
+    }
+
+    obj.copy(buf, 0, 0, len)
+    return buf
+  }
+
+  if (obj) {
+    if (isArrayBufferView(obj) || 'length' in obj) {
+      if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
+        return createBuffer(0)
+      }
+      return fromArrayLike(obj)
+    }
+
+    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
+      return fromArrayLike(obj.data)
+    }
+  }
+
+  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
+}
+
+function checked (length) {
+  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
+  // length is NaN (which is otherwise coerced to zero.)
+  if (length >= K_MAX_LENGTH) {
+    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
+                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+  }
+  return length | 0
+}
+
+function SlowBuffer (length) {
+  if (+length != length) { // eslint-disable-line eqeqeq
+    length = 0
+  }
+  return Buffer.alloc(+length)
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+  return b != null && b._isBuffer === true
+}
+
+Buffer.compare = function compare (a, b) {
+  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+    throw new TypeError('Arguments must be Buffers')
+  }
+
+  if (a === b) return 0
+
+  var x = a.length
+  var y = b.length
+
+  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
+    if (a[i] !== b[i]) {
+      x = a[i]
+      y = b[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+  switch (String(encoding).toLowerCase()) {
+    case 'hex':
+    case 'utf8':
+    case 'utf-8':
+    case 'ascii':
+    case 'latin1':
+    case 'binary':
+    case 'base64':
+    case 'ucs2':
+    case 'ucs-2':
+    case 'utf16le':
+    case 'utf-16le':
+      return true
+    default:
+      return false
+  }
+}
+
+Buffer.concat = function concat (list, length) {
+  if (!Array.isArray(list)) {
+    throw new TypeError('"list" argument must be an Array of Buffers')
+  }
+
+  if (list.length === 0) {
+    return Buffer.alloc(0)
+  }
+
+  var i
+  if (length === undefined) {
+    length = 0
+    for (i = 0; i < list.length; ++i) {
+      length += list[i].length
+    }
+  }
+
+  var buffer = Buffer.allocUnsafe(length)
+  var pos = 0
+  for (i = 0; i < list.length; ++i) {
+    var buf = list[i]
+    if (!Buffer.isBuffer(buf)) {
+      throw new TypeError('"list" argument must be an Array of Buffers')
+    }
+    buf.copy(buffer, pos)
+    pos += buf.length
+  }
+  return buffer
+}
+
+function byteLength (string, encoding) {
+  if (Buffer.isBuffer(string)) {
+    return string.length
+  }
+  if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
+    return string.byteLength
+  }
+  if (typeof string !== 'string') {
+    string = '' + string
+  }
+
+  var len = string.length
+  if (len === 0) return 0
+
+  // Use a for loop to avoid recursion
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'ascii':
+      case 'latin1':
+      case 'binary':
+        return len
+      case 'utf8':
+      case 'utf-8':
+      case undefined:
+        return utf8ToBytes(string).length
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return len * 2
+      case 'hex':
+        return len >>> 1
+      case 'base64':
+        return base64ToBytes(string).length
+      default:
+        if (loweredCase) return utf8ToBytes(string).length // assume utf8
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+Buffer.byteLength = byteLength
+
+function slowToString (encoding, start, end) {
+  var loweredCase = false
+
+  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
+  // property of a typed array.
+
+  // This behaves neither like String nor Uint8Array in that we set start/end
+  // to their upper/lower bounds if the value passed is out of range.
+  // undefined is handled specially as per ECMA-262 6th Edition,
+  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
+  if (start === undefined || start < 0) {
+    start = 0
+  }
+  // Return early if start > this.length. Done here to prevent potential uint32
+  // coercion fail below.
+  if (start > this.length) {
+    return ''
+  }
+
+  if (end === undefined || end > this.length) {
+    end = this.length
+  }
+
+  if (end <= 0) {
+    return ''
+  }
+
+  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
+  end >>>= 0
+  start >>>= 0
+
+  if (end <= start) {
+    return ''
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  while (true) {
+    switch (encoding) {
+      case 'hex':
+        return hexSlice(this, start, end)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Slice(this, start, end)
+
+      case 'ascii':
+        return asciiSlice(this, start, end)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Slice(this, start, end)
+
+      case 'base64':
+        return base64Slice(this, start, end)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return utf16leSlice(this, start, end)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = (encoding + '').toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
+// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
+// reliably in a browserify context because there could be multiple different
+// copies of the 'buffer' package in use. This method works even for Buffer
+// instances that were created from another copy of the `buffer` package.
+// See: https://github.com/feross/buffer/issues/154
+Buffer.prototype._isBuffer = true
+
+function swap (b, n, m) {
+  var i = b[n]
+  b[n] = b[m]
+  b[m] = i
+}
+
+Buffer.prototype.swap16 = function swap16 () {
+  var len = this.length
+  if (len % 2 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 16-bits')
+  }
+  for (var i = 0; i < len; i += 2) {
+    swap(this, i, i + 1)
+  }
+  return this
+}
+
+Buffer.prototype.swap32 = function swap32 () {
+  var len = this.length
+  if (len % 4 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 32-bits')
+  }
+  for (var i = 0; i < len; i += 4) {
+    swap(this, i, i + 3)
+    swap(this, i + 1, i + 2)
+  }
+  return this
+}
+
+Buffer.prototype.swap64 = function swap64 () {
+  var len = this.length
+  if (len % 8 !== 0) {
+    throw new RangeError('Buffer size must be a multiple of 64-bits')
+  }
+  for (var i = 0; i < len; i += 8) {
+    swap(this, i, i + 7)
+    swap(this, i + 1, i + 6)
+    swap(this, i + 2, i + 5)
+    swap(this, i + 3, i + 4)
+  }
+  return this
+}
+
+Buffer.prototype.toString = function toString () {
+  var length = this.length
+  if (length === 0) return ''
+  if (arguments.length === 0) return utf8Slice(this, 0, length)
+  return slowToString.apply(this, arguments)
+}
+
+Buffer.prototype.equals = function equals (b) {
+  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+  if (this === b) return true
+  return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+  var str = ''
+  var max = exports.INSPECT_MAX_BYTES
+  if (this.length > 0) {
+    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+    if (this.length > max) str += ' ... '
+  }
+  return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
+  if (!Buffer.isBuffer(target)) {
+    throw new TypeError('Argument must be a Buffer')
+  }
+
+  if (start === undefined) {
+    start = 0
+  }
+  if (end === undefined) {
+    end = target ? target.length : 0
+  }
+  if (thisStart === undefined) {
+    thisStart = 0
+  }
+  if (thisEnd === undefined) {
+    thisEnd = this.length
+  }
+
+  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
+    throw new RangeError('out of range index')
+  }
+
+  if (thisStart >= thisEnd && start >= end) {
+    return 0
+  }
+  if (thisStart >= thisEnd) {
+    return -1
+  }
+  if (start >= end) {
+    return 1
+  }
+
+  start >>>= 0
+  end >>>= 0
+  thisStart >>>= 0
+  thisEnd >>>= 0
+
+  if (this === target) return 0
+
+  var x = thisEnd - thisStart
+  var y = end - start
+  var len = Math.min(x, y)
+
+  var thisCopy = this.slice(thisStart, thisEnd)
+  var targetCopy = target.slice(start, end)
+
+  for (var i = 0; i < len; ++i) {
+    if (thisCopy[i] !== targetCopy[i]) {
+      x = thisCopy[i]
+      y = targetCopy[i]
+      break
+    }
+  }
+
+  if (x < y) return -1
+  if (y < x) return 1
+  return 0
+}
+
+// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
+// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
+//
+// Arguments:
+// - buffer - a Buffer to search
+// - val - a string, Buffer, or number
+// - byteOffset - an index into `buffer`; will be clamped to an int32
+// - encoding - an optional encoding, relevant is val is a string
+// - dir - true for indexOf, false for lastIndexOf
+function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
+  // Empty buffer means no match
+  if (buffer.length === 0) return -1
+
+  // Normalize byteOffset
+  if (typeof byteOffset === 'string') {
+    encoding = byteOffset
+    byteOffset = 0
+  } else if (byteOffset > 0x7fffffff) {
+    byteOffset = 0x7fffffff
+  } else if (byteOffset < -0x80000000) {
+    byteOffset = -0x80000000
+  }
+  byteOffset = +byteOffset  // Coerce to Number.
+  if (numberIsNaN(byteOffset)) {
+    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
+    byteOffset = dir ? 0 : (buffer.length - 1)
+  }
+
+  // Normalize byteOffset: negative offsets start from the end of the buffer
+  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
+  if (byteOffset >= buffer.length) {
+    if (dir) return -1
+    else byteOffset = buffer.length - 1
+  } else if (byteOffset < 0) {
+    if (dir) byteOffset = 0
+    else return -1
+  }
+
+  // Normalize val
+  if (typeof val === 'string') {
+    val = Buffer.from(val, encoding)
+  }
+
+  // Finally, search either indexOf (if dir is true) or lastIndexOf
+  if (Buffer.isBuffer(val)) {
+    // Special case: looking for empty string/buffer always fails
+    if (val.length === 0) {
+      return -1
+    }
+    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
+  } else if (typeof val === 'number') {
+    val = val & 0xFF // Search for a byte value [0-255]
+    if (typeof Uint8Array.prototype.indexOf === 'function') {
+      if (dir) {
+        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
+      } else {
+        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
+      }
+    }
+    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
+  }
+
+  throw new TypeError('val must be string, number or Buffer')
+}
+
+function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
+  var indexSize = 1
+  var arrLength = arr.length
+  var valLength = val.length
+
+  if (encoding !== undefined) {
+    encoding = String(encoding).toLowerCase()
+    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
+        encoding === 'utf16le' || encoding === 'utf-16le') {
+      if (arr.length < 2 || val.length < 2) {
+        return -1
+      }
+      indexSize = 2
+      arrLength /= 2
+      valLength /= 2
+      byteOffset /= 2
+    }
+  }
+
+  function read (buf, i) {
+    if (indexSize === 1) {
+      return buf[i]
+    } else {
+      return buf.readUInt16BE(i * indexSize)
+    }
+  }
+
+  var i
+  if (dir) {
+    var foundIndex = -1
+    for (i = byteOffset; i < arrLength; i++) {
+      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
+        if (foundIndex === -1) foundIndex = i
+        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
+      } else {
+        if (foundIndex !== -1) i -= i - foundIndex
+        foundIndex = -1
+      }
+    }
+  } else {
+    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
+    for (i = byteOffset; i >= 0; i--) {
+      var found = true
+      for (var j = 0; j < valLength; j++) {
+        if (read(arr, i + j) !== read(val, j)) {
+          found = false
+          break
+        }
+      }
+      if (found) return i
+    }
+  }
+
+  return -1
+}
+
+Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
+  return this.indexOf(val, byteOffset, encoding) !== -1
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
+}
+
+Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
+  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
+}
+
+function hexWrite (buf, string, offset, length) {
+  offset = Number(offset) || 0
+  var remaining = buf.length - offset
+  if (!length) {
+    length = remaining
+  } else {
+    length = Number(length)
+    if (length > remaining) {
+      length = remaining
+    }
+  }
+
+  // must be an even number of digits
+  var strLen = string.length
+  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+
+  if (length > strLen / 2) {
+    length = strLen / 2
+  }
+  for (var i = 0; i < length; ++i) {
+    var parsed = parseInt(string.substr(i * 2, 2), 16)
+    if (numberIsNaN(parsed)) return i
+    buf[offset + i] = parsed
+  }
+  return i
+}
+
+function utf8Write (buf, string, offset, length) {
+  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+function asciiWrite (buf, string, offset, length) {
+  return blitBuffer(asciiToBytes(string), buf, offset, length)
+}
+
+function latin1Write (buf, string, offset, length) {
+  return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+  return blitBuffer(base64ToBytes(string), buf, offset, length)
+}
+
+function ucs2Write (buf, string, offset, length) {
+  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+  // Buffer#write(string)
+  if (offset === undefined) {
+    encoding = 'utf8'
+    length = this.length
+    offset = 0
+  // Buffer#write(string, encoding)
+  } else if (length === undefined && typeof offset === 'string') {
+    encoding = offset
+    length = this.length
+    offset = 0
+  // Buffer#write(string, offset[, length][, encoding])
+  } else if (isFinite(offset)) {
+    offset = offset >>> 0
+    if (isFinite(length)) {
+      length = length >>> 0
+      if (encoding === undefined) encoding = 'utf8'
+    } else {
+      encoding = length
+      length = undefined
+    }
+  } else {
+    throw new Error(
+      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
+    )
+  }
+
+  var remaining = this.length - offset
+  if (length === undefined || length > remaining) length = remaining
+
+  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
+    throw new RangeError('Attempt to write outside buffer bounds')
+  }
+
+  if (!encoding) encoding = 'utf8'
+
+  var loweredCase = false
+  for (;;) {
+    switch (encoding) {
+      case 'hex':
+        return hexWrite(this, string, offset, length)
+
+      case 'utf8':
+      case 'utf-8':
+        return utf8Write(this, string, offset, length)
+
+      case 'ascii':
+        return asciiWrite(this, string, offset, length)
+
+      case 'latin1':
+      case 'binary':
+        return latin1Write(this, string, offset, length)
+
+      case 'base64':
+        // Warning: maxLength not taken into account in base64Write
+        return base64Write(this, string, offset, length)
+
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return ucs2Write(this, string, offset, length)
+
+      default:
+        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+        encoding = ('' + encoding).toLowerCase()
+        loweredCase = true
+    }
+  }
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+  return {
+    type: 'Buffer',
+    data: Array.prototype.slice.call(this._arr || this, 0)
+  }
+}
+
+function base64Slice (buf, start, end) {
+  if (start === 0 && end === buf.length) {
+    return base64.fromByteArray(buf)
+  } else {
+    return base64.fromByteArray(buf.slice(start, end))
+  }
+}
+
+function utf8Slice (buf, start, end) {
+  end = Math.min(buf.length, end)
+  var res = []
+
+  var i = start
+  while (i < end) {
+    var firstByte = buf[i]
+    var codePoint = null
+    var bytesPerSequence = (firstByte > 0xEF) ? 4
+      : (firstByte > 0xDF) ? 3
+      : (firstByte > 0xBF) ? 2
+      : 1
+
+    if (i + bytesPerSequence <= end) {
+      var secondByte, thirdByte, fourthByte, tempCodePoint
+
+      switch (bytesPerSequence) {
+        case 1:
+          if (firstByte < 0x80) {
+            codePoint = firstByte
+          }
+          break
+        case 2:
+          secondByte = buf[i + 1]
+          if ((secondByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
+            if (tempCodePoint > 0x7F) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 3:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
+            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
+              codePoint = tempCodePoint
+            }
+          }
+          break
+        case 4:
+          secondByte = buf[i + 1]
+          thirdByte = buf[i + 2]
+          fourthByte = buf[i + 3]
+          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
+            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
+            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
+              codePoint = tempCodePoint
+            }
+          }
+      }
+    }
+
+    if (codePoint === null) {
+      // we did not generate a valid codePoint so insert a
+      // replacement char (U+FFFD) and advance only 1 byte
+      codePoint = 0xFFFD
+      bytesPerSequence = 1
+    } else if (codePoint > 0xFFFF) {
+      // encode to utf16 (surrogate pair dance)
+      codePoint -= 0x10000
+      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
+      codePoint = 0xDC00 | codePoint & 0x3FF
+    }
+
+    res.push(codePoint)
+    i += bytesPerSequence
+  }
+
+  return decodeCodePointsArray(res)
+}
+
+// Based on http://stackoverflow.com/a/22747272/680742, the browser with
+// the lowest limit is Chrome, with 0x10000 args.
+// We go 1 magnitude less, for safety
+var MAX_ARGUMENTS_LENGTH = 0x1000
+
+function decodeCodePointsArray (codePoints) {
+  var len = codePoints.length
+  if (len <= MAX_ARGUMENTS_LENGTH) {
+    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
+  }
+
+  // Decode in chunks to avoid "call stack size exceeded".
+  var res = ''
+  var i = 0
+  while (i < len) {
+    res += String.fromCharCode.apply(
+      String,
+      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
+    )
+  }
+  return res
+}
+
+function asciiSlice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i] & 0x7F)
+  }
+  return ret
+}
+
+function latin1Slice (buf, start, end) {
+  var ret = ''
+  end = Math.min(buf.length, end)
+
+  for (var i = start; i < end; ++i) {
+    ret += String.fromCharCode(buf[i])
+  }
+  return ret
+}
+
+function hexSlice (buf, start, end) {
+  var len = buf.length
+
+  if (!start || start < 0) start = 0
+  if (!end || end < 0 || end > len) end = len
+
+  var out = ''
+  for (var i = start; i < end; ++i) {
+    out += toHex(buf[i])
+  }
+  return out
+}
+
+function utf16leSlice (buf, start, end) {
+  var bytes = buf.slice(start, end)
+  var res = ''
+  for (var i = 0; i < bytes.length; i += 2) {
+    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
+  }
+  return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+  var len = this.length
+  start = ~~start
+  end = end === undefined ? len : ~~end
+
+  if (start < 0) {
+    start += len
+    if (start < 0) start = 0
+  } else if (start > len) {
+    start = len
+  }
+
+  if (end < 0) {
+    end += len
+    if (end < 0) end = 0
+  } else if (end > len) {
+    end = len
+  }
+
+  if (end < start) end = start
+
+  var newBuf = this.subarray(start, end)
+  // Return an augmented `Uint8Array` instance
+  newBuf.__proto__ = Buffer.prototype
+  return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    checkOffset(offset, byteLength, this.length)
+  }
+
+  var val = this[offset + --byteLength]
+  var mul = 1
+  while (byteLength > 0 && (mul *= 0x100)) {
+    val += this[offset + --byteLength] * mul
+  }
+
+  return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return ((this[offset]) |
+      (this[offset + 1] << 8) |
+      (this[offset + 2] << 16)) +
+      (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] * 0x1000000) +
+    ((this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var val = this[offset]
+  var mul = 1
+  var i = 0
+  while (++i < byteLength && (mul *= 0x100)) {
+    val += this[offset + i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+  var i = byteLength
+  var mul = 1
+  var val = this[offset + --i]
+  while (i > 0 && (mul *= 0x100)) {
+    val += this[offset + --i] * mul
+  }
+  mul *= 0x80
+
+  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+  return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 1, this.length)
+  if (!(this[offset] & 0x80)) return (this[offset])
+  return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset] | (this[offset + 1] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 2, this.length)
+  var val = this[offset + 1] | (this[offset] << 8)
+  return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset]) |
+    (this[offset + 1] << 8) |
+    (this[offset + 2] << 16) |
+    (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+
+  return (this[offset] << 24) |
+    (this[offset + 1] << 16) |
+    (this[offset + 2] << 8) |
+    (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 4, this.length)
+  return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+  offset = offset >>> 0
+  if (!noAssert) checkOffset(offset, 8, this.length)
+  return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
+  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var mul = 1
+  var i = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  byteLength = byteLength >>> 0
+  if (!noAssert) {
+    var maxBytes = Math.pow(2, 8 * byteLength) - 1
+    checkInt(this, value, offset, byteLength, maxBytes, 0)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    this[offset + i] = (value / mul) & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset + 3] = (value >>> 24)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 1] = (value >>> 8)
+  this[offset] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = 0
+  var mul = 1
+  var sub = 0
+  this[offset] = value & 0xFF
+  while (++i < byteLength && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    var limit = Math.pow(2, (8 * byteLength) - 1)
+
+    checkInt(this, value, offset, byteLength, limit - 1, -limit)
+  }
+
+  var i = byteLength - 1
+  var mul = 1
+  var sub = 0
+  this[offset + i] = value & 0xFF
+  while (--i >= 0 && (mul *= 0x100)) {
+    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
+      sub = 1
+    }
+    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  }
+
+  return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+  if (value < 0) value = 0xff + value + 1
+  this[offset] = (value & 0xff)
+  return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+  this[offset] = (value >>> 8)
+  this[offset + 1] = (value & 0xff)
+  return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  this[offset] = (value & 0xff)
+  this[offset + 1] = (value >>> 8)
+  this[offset + 2] = (value >>> 16)
+  this[offset + 3] = (value >>> 24)
+  return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+  if (value < 0) value = 0xffffffff + value + 1
+  this[offset] = (value >>> 24)
+  this[offset + 1] = (value >>> 16)
+  this[offset + 2] = (value >>> 8)
+  this[offset + 3] = (value & 0xff)
+  return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+  if (offset + ext > buf.length) throw new RangeError('Index out of range')
+  if (offset < 0) throw new RangeError('Index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 23, 4)
+  return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+  return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+  value = +value
+  offset = offset >>> 0
+  if (!noAssert) {
+    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+  }
+  ieee754.write(buf, value, offset, littleEndian, 52, 8)
+  return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+  return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, targetStart, start, end) {
+  if (!start) start = 0
+  if (!end && end !== 0) end = this.length
+  if (targetStart >= target.length) targetStart = target.length
+  if (!targetStart) targetStart = 0
+  if (end > 0 && end < start) end = start
+
+  // Copy 0 bytes; we're done
+  if (end === start) return 0
+  if (target.length === 0 || this.length === 0) return 0
+
+  // Fatal error conditions
+  if (targetStart < 0) {
+    throw new RangeError('targetStart out of bounds')
+  }
+  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
+  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+  // Are we oob?
+  if (end > this.length) end = this.length
+  if (target.length - targetStart < end - start) {
+    end = target.length - targetStart + start
+  }
+
+  var len = end - start
+  var i
+
+  if (this === target && start < targetStart && targetStart < end) {
+    // descending copy from end
+    for (i = len - 1; i >= 0; --i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else if (len < 1000) {
+    // ascending copy from start
+    for (i = 0; i < len; ++i) {
+      target[i + targetStart] = this[i + start]
+    }
+  } else {
+    Uint8Array.prototype.set.call(
+      target,
+      this.subarray(start, start + len),
+      targetStart
+    )
+  }
+
+  return len
+}
+
+// Usage:
+//    buffer.fill(number[, offset[, end]])
+//    buffer.fill(buffer[, offset[, end]])
+//    buffer.fill(string[, offset[, end]][, encoding])
+Buffer.prototype.fill = function fill (val, start, end, encoding) {
+  // Handle string cases:
+  if (typeof val === 'string') {
+    if (typeof start === 'string') {
+      encoding = start
+      start = 0
+      end = this.length
+    } else if (typeof end === 'string') {
+      encoding = end
+      end = this.length
+    }
+    if (val.length === 1) {
+      var code = val.charCodeAt(0)
+      if (code < 256) {
+        val = code
+      }
+    }
+    if (encoding !== undefined && typeof encoding !== 'string') {
+      throw new TypeError('encoding must be a string')
+    }
+    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
+      throw new TypeError('Unknown encoding: ' + encoding)
+    }
+  } else if (typeof val === 'number') {
+    val = val & 255
+  }
+
+  // Invalid ranges are not set to a default, so can range check early.
+  if (start < 0 || this.length < start || this.length < end) {
+    throw new RangeError('Out of range index')
+  }
+
+  if (end <= start) {
+    return this
+  }
+
+  start = start >>> 0
+  end = end === undefined ? this.length : end >>> 0
+
+  if (!val) val = 0
+
+  var i
+  if (typeof val === 'number') {
+    for (i = start; i < end; ++i) {
+      this[i] = val
+    }
+  } else {
+    var bytes = Buffer.isBuffer(val)
+      ? val
+      : new Buffer(val, encoding)
+    var len = bytes.length
+    for (i = 0; i < end - start; ++i) {
+      this[i + start] = bytes[i % len]
+    }
+  }
+
+  return this
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+
+function base64clean (str) {
+  // Node strips out invalid characters like \n and \t from the string, base64-js does not
+  str = str.trim().replace(INVALID_BASE64_RE, '')
+  // Node converts strings with length < 2 to ''
+  if (str.length < 2) return ''
+  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+  while (str.length % 4 !== 0) {
+    str = str + '='
+  }
+  return str
+}
+
+function toHex (n) {
+  if (n < 16) return '0' + n.toString(16)
+  return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+  units = units || Infinity
+  var codePoint
+  var length = string.length
+  var leadSurrogate = null
+  var bytes = []
+
+  for (var i = 0; i < length; ++i) {
+    codePoint = string.charCodeAt(i)
+
+    // is surrogate component
+    if (codePoint > 0xD7FF && codePoint < 0xE000) {
+      // last char was a lead
+      if (!leadSurrogate) {
+        // no lead yet
+        if (codePoint > 0xDBFF) {
+          // unexpected trail
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        } else if (i + 1 === length) {
+          // unpaired lead
+          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+          continue
+        }
+
+        // valid lead
+        leadSurrogate = codePoint
+
+        continue
+      }
+
+      // 2 leads in a row
+      if (codePoint < 0xDC00) {
+        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+        leadSurrogate = codePoint
+        continue
+      }
+
+      // valid surrogate pair
+      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
+    } else if (leadSurrogate) {
+      // valid bmp char, but last char was a lead
+      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+    }
+
+    leadSurrogate = null
+
+    // encode utf8
+    if (codePoint < 0x80) {
+      if ((units -= 1) < 0) break
+      bytes.push(codePoint)
+    } else if (codePoint < 0x800) {
+      if ((units -= 2) < 0) break
+      bytes.push(
+        codePoint >> 0x6 | 0xC0,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x10000) {
+      if ((units -= 3) < 0) break
+      bytes.push(
+        codePoint >> 0xC | 0xE0,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else if (codePoint < 0x110000) {
+      if ((units -= 4) < 0) break
+      bytes.push(
+        codePoint >> 0x12 | 0xF0,
+        codePoint >> 0xC & 0x3F | 0x80,
+        codePoint >> 0x6 & 0x3F | 0x80,
+        codePoint & 0x3F | 0x80
+      )
+    } else {
+      throw new Error('Invalid code point')
+    }
+  }
+
+  return bytes
+}
+
+function asciiToBytes (str) {
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    // Node's code seems to be doing this and not & 0x7F..
+    byteArray.push(str.charCodeAt(i) & 0xFF)
+  }
+  return byteArray
+}
+
+function utf16leToBytes (str, units) {
+  var c, hi, lo
+  var byteArray = []
+  for (var i = 0; i < str.length; ++i) {
+    if ((units -= 2) < 0) break
+
+    c = str.charCodeAt(i)
+    hi = c >> 8
+    lo = c % 256
+    byteArray.push(lo)
+    byteArray.push(hi)
+  }
+
+  return byteArray
+}
+
+function base64ToBytes (str) {
+  return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+  for (var i = 0; i < length; ++i) {
+    if ((i + offset >= dst.length) || (i >= src.length)) break
+    dst[i + offset] = src[i]
+  }
+  return i
+}
+
+// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
+function isArrayBufferView (obj) {
+  return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+}
+
+function numberIsNaN (obj) {
+  return obj !== obj // eslint-disable-line no-self-compare
+}
+
+},{"base64-js":2,"ieee754":8}],6:[function(require,module,exports){
+(function (Buffer){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isArray(arg) {
+  if (Array.isArray) {
+    return Array.isArray(arg);
+  }
+  return objectToString(arg) === '[object Array]';
+}
+exports.isArray = isArray;
+
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
+
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
+
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
+
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
+
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
+
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
+
+function isRegExp(re) {
+  return objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
+
+function isDate(d) {
+  return objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
+
+function isError(e) {
+  return (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
+
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
+
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
+
+exports.isBuffer = Buffer.isBuffer;
+
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
+
+}).call(this,{"isBuffer":require("../../is-buffer/index.js")})
+},{"../../is-buffer/index.js":10}],7:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+function EventEmitter() {
+  this._events = this._events || {};
+  this._maxListeners = this._maxListeners || undefined;
+}
+module.exports = EventEmitter;
+
+// Backwards-compat with node 0.10.x
+EventEmitter.EventEmitter = EventEmitter;
+
+EventEmitter.prototype._events = undefined;
+EventEmitter.prototype._maxListeners = undefined;
+
+// By default EventEmitters will print a warning if more than 10 listeners are
+// added to it. This is a useful default which helps finding memory leaks.
+EventEmitter.defaultMaxListeners = 10;
+
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+EventEmitter.prototype.setMaxListeners = function(n) {
+  if (!isNumber(n) || n < 0 || isNaN(n))
+    throw TypeError('n must be a positive number');
+  this._maxListeners = n;
+  return this;
+};
+
+EventEmitter.prototype.emit = function(type) {
+  var er, handler, len, args, i, listeners;
+
+  if (!this._events)
+    this._events = {};
+
+  // If there is no 'error' event listener then throw.
+  if (type === 'error') {
+    if (!this._events.error ||
+        (isObject(this._events.error) && !this._events.error.length)) {
+      er = arguments[1];
+      if (er instanceof Error) {
+        throw er; // Unhandled 'error' event
+      } else {
+        // At least give some kind of context to the user
+        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
+        err.context = er;
+        throw err;
+      }
+    }
+  }
+
+  handler = this._events[type];
+
+  if (isUndefined(handler))
+    return false;
+
+  if (isFunction(handler)) {
+    switch (arguments.length) {
+      // fast cases
+      case 1:
+        handler.call(this);
+        break;
+      case 2:
+        handler.call(this, arguments[1]);
+        break;
+      case 3:
+        handler.call(this, arguments[1], arguments[2]);
+        break;
+      // slower
+      default:
+        args = Array.prototype.slice.call(arguments, 1);
+        handler.apply(this, args);
+    }
+  } else if (isObject(handler)) {
+    args = Array.prototype.slice.call(arguments, 1);
+    listeners = handler.slice();
+    len = listeners.length;
+    for (i = 0; i < len; i++)
+      listeners[i].apply(this, args);
+  }
+
+  return true;
+};
+
+EventEmitter.prototype.addListener = function(type, listener) {
+  var m;
+
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
+
+  if (!this._events)
+    this._events = {};
+
+  // To avoid recursion in the case that type === "newListener"! Before
+  // adding it to the listeners, first emit "newListener".
+  if (this._events.newListener)
+    this.emit('newListener', type,
+              isFunction(listener.listener) ?
+              listener.listener : listener);
+
+  if (!this._events[type])
+    // Optimize the case of one listener. Don't need the extra array object.
+    this._events[type] = listener;
+  else if (isObject(this._events[type]))
+    // If we've already got an array, just append.
+    this._events[type].push(listener);
+  else
+    // Adding the second element, need to change to array.
+    this._events[type] = [this._events[type], listener];
 
-        <style>
-            body {
-                padding-bottom: 32px;
-            }
-            .form-control[readonly] {
-                cursor: text;
-            }
-            .feedback-container {
-                position: fixed;
-                top: 0;
-                width: 100%;
-                text-align: center;
-                z-index: 4;
-            }
-            .feedback {
-                display: table;
-                padding: 0.5em 1em;
-                background-color: orange;
-                margin: 0 auto;
-                font-size: 2em;
-                color: #444;
-                border: 2px solid #555;
-                border-top: 0;
-                border-bottom-left-radius: 20px 20px;
-                border-bottom-right-radius: 20px 20px;
-            }
-            .no-border {
-                border: 0;
-                box-shadow: inset 0 1px 1px rgba(0,0,0,.0);
-                -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.0);
-            }
-            .phrase {
-                word-break: keep-all;
-            }
-            .generate-container .strength {
-                /* override mobile width from bootstrap */
-                width: auto!important;
-                display: inline-block;
-            }
-            .languages a {
-                padding-left: 10px;
-            }
-            .languages a:nth-of-type(1) {
-                margin-left: -12px;
-                padding-left: 0;
-            }
-            .monospace {
-                font-family: monospace;
-            }
-            .entropy-container .filtered,
-            .entropy-container .binary {
-                word-wrap: break-word;
-            }
-            .entropy-container li {
-                padding-bottom: 5px;
-            }
-            .card-suit {
-                font-size: 19px;
-                line-height: 0;
-            }
-            .card-suit.club {
-                color: #009F00;
-            }
-            .card-suit.diamond {
-                color: #3D5DC4;
-            }
-            .card-suit.heart {
-                color: #F00;
-            }
-            .card-suit.spade {
-                color: #000;
-            }
-            .qr-container {
-                position: fixed;
-                top: 0;
-                right: 0;
-                text-align: center;
-                background-color: #FFF;
-                border: 1px solid #CCC;
-            }
-            .qr-image {
-                margin: 5px;
-            }
-            .qr-hint,
-            .qr-warning {
-                padding: 2px;
-                max-width: 150px;
-            }
-            .more-info {
-                cursor: help;
-                border-bottom: 1px dashed #000;
-                text-decoration: none;
-            }
-            .version {
-                position: absolute;
-                top: 5px;
-                right: 5px;
+  // Check for listener leak
+  if (isObject(this._events[type]) && !this._events[type].warned) {
+    if (!isUndefined(this._maxListeners)) {
+      m = this._maxListeners;
+    } else {
+      m = EventEmitter.defaultMaxListeners;
+    }
+
+    if (m && m > 0 && this._events[type].length > m) {
+      this._events[type].warned = true;
+      console.error('(node) warning: possible EventEmitter memory ' +
+                    'leak detected. %d listeners added. ' +
+                    'Use emitter.setMaxListeners() to increase limit.',
+                    this._events[type].length);
+      if (typeof console.trace === 'function') {
+        // not supported in IE 10
+        console.trace();
+      }
+    }
+  }
+
+  return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
+
+  var fired = false;
+
+  function g() {
+    this.removeListener(type, g);
+
+    if (!fired) {
+      fired = true;
+      listener.apply(this, arguments);
+    }
+  }
+
+  g.listener = listener;
+  this.on(type, g);
+
+  return this;
+};
+
+// emits a 'removeListener' event iff the listener was removed
+EventEmitter.prototype.removeListener = function(type, listener) {
+  var list, position, length, i;
+
+  if (!isFunction(listener))
+    throw TypeError('listener must be a function');
+
+  if (!this._events || !this._events[type])
+    return this;
+
+  list = this._events[type];
+  length = list.length;
+  position = -1;
+
+  if (list === listener ||
+      (isFunction(list.listener) && list.listener === listener)) {
+    delete this._events[type];
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
+
+  } else if (isObject(list)) {
+    for (i = length; i-- > 0;) {
+      if (list[i] === listener ||
+          (list[i].listener && list[i].listener === listener)) {
+        position = i;
+        break;
+      }
+    }
+
+    if (position < 0)
+      return this;
+
+    if (list.length === 1) {
+      list.length = 0;
+      delete this._events[type];
+    } else {
+      list.splice(position, 1);
+    }
+
+    if (this._events.removeListener)
+      this.emit('removeListener', type, listener);
+  }
+
+  return this;
+};
+
+EventEmitter.prototype.removeAllListeners = function(type) {
+  var key, listeners;
+
+  if (!this._events)
+    return this;
+
+  // not listening for removeListener, no need to emit
+  if (!this._events.removeListener) {
+    if (arguments.length === 0)
+      this._events = {};
+    else if (this._events[type])
+      delete this._events[type];
+    return this;
+  }
+
+  // emit removeListener for all listeners on all events
+  if (arguments.length === 0) {
+    for (key in this._events) {
+      if (key === 'removeListener') continue;
+      this.removeAllListeners(key);
+    }
+    this.removeAllListeners('removeListener');
+    this._events = {};
+    return this;
+  }
+
+  listeners = this._events[type];
+
+  if (isFunction(listeners)) {
+    this.removeListener(type, listeners);
+  } else if (listeners) {
+    // LIFO order
+    while (listeners.length)
+      this.removeListener(type, listeners[listeners.length - 1]);
+  }
+  delete this._events[type];
+
+  return this;
+};
+
+EventEmitter.prototype.listeners = function(type) {
+  var ret;
+  if (!this._events || !this._events[type])
+    ret = [];
+  else if (isFunction(this._events[type]))
+    ret = [this._events[type]];
+  else
+    ret = this._events[type].slice();
+  return ret;
+};
+
+EventEmitter.prototype.listenerCount = function(type) {
+  if (this._events) {
+    var evlistener = this._events[type];
+
+    if (isFunction(evlistener))
+      return 1;
+    else if (evlistener)
+      return evlistener.length;
+  }
+  return 0;
+};
+
+EventEmitter.listenerCount = function(emitter, type) {
+  return emitter.listenerCount(type);
+};
+
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+
+function isUndefined(arg) {
+  return arg === void 0;
+}
+
+},{}],8:[function(require,module,exports){
+exports.read = function (buffer, offset, isLE, mLen, nBytes) {
+  var e, m
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var nBits = -7
+  var i = isLE ? (nBytes - 1) : 0
+  var d = isLE ? -1 : 1
+  var s = buffer[offset + i]
+
+  i += d
+
+  e = s & ((1 << (-nBits)) - 1)
+  s >>= (-nBits)
+  nBits += eLen
+  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+  m = e & ((1 << (-nBits)) - 1)
+  e >>= (-nBits)
+  nBits += mLen
+  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+
+  if (e === 0) {
+    e = 1 - eBias
+  } else if (e === eMax) {
+    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  } else {
+    m = m + Math.pow(2, mLen)
+    e = e - eBias
+  }
+  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
+}
+
+exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
+  var e, m, c
+  var eLen = nBytes * 8 - mLen - 1
+  var eMax = (1 << eLen) - 1
+  var eBias = eMax >> 1
+  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
+  var i = isLE ? 0 : (nBytes - 1)
+  var d = isLE ? 1 : -1
+  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+
+  value = Math.abs(value)
+
+  if (isNaN(value) || value === Infinity) {
+    m = isNaN(value) ? 1 : 0
+    e = eMax
+  } else {
+    e = Math.floor(Math.log(value) / Math.LN2)
+    if (value * (c = Math.pow(2, -e)) < 1) {
+      e--
+      c *= 2
+    }
+    if (e + eBias >= 1) {
+      value += rt / c
+    } else {
+      value += rt * Math.pow(2, 1 - eBias)
+    }
+    if (value * c >= 2) {
+      e++
+      c /= 2
+    }
+
+    if (e + eBias >= eMax) {
+      m = 0
+      e = eMax
+    } else if (e + eBias >= 1) {
+      m = (value * c - 1) * Math.pow(2, mLen)
+      e = e + eBias
+    } else {
+      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
+      e = 0
+    }
+  }
+
+  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+
+  e = (e << mLen) | m
+  eLen += mLen
+  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+
+  buffer[offset + i - d] |= s * 128
+}
+
+},{}],9:[function(require,module,exports){
+if (typeof Object.create === 'function') {
+  // implementation from standard node.js 'util' module
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    ctor.prototype = Object.create(superCtor.prototype, {
+      constructor: {
+        value: ctor,
+        enumerable: false,
+        writable: true,
+        configurable: true
+      }
+    });
+  };
+} else {
+  // old school shim for old browsers
+  module.exports = function inherits(ctor, superCtor) {
+    ctor.super_ = superCtor
+    var TempCtor = function () {}
+    TempCtor.prototype = superCtor.prototype
+    ctor.prototype = new TempCtor()
+    ctor.prototype.constructor = ctor
+  }
+}
+
+},{}],10:[function(require,module,exports){
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license  MIT
+ */
+
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+module.exports = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+}
+
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
+
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
+
+},{}],11:[function(require,module,exports){
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
+
+},{}],12:[function(require,module,exports){
+(function (process){
+'use strict';
+
+if (!process.version ||
+    process.version.indexOf('v0.') === 0 ||
+    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
+  module.exports = nextTick;
+} else {
+  module.exports = process.nextTick;
+}
+
+function nextTick(fn, arg1, arg2, arg3) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('"callback" argument must be a function');
+  }
+  var len = arguments.length;
+  var args, i;
+  switch (len) {
+  case 0:
+  case 1:
+    return process.nextTick(fn);
+  case 2:
+    return process.nextTick(function afterTickOne() {
+      fn.call(null, arg1);
+    });
+  case 3:
+    return process.nextTick(function afterTickTwo() {
+      fn.call(null, arg1, arg2);
+    });
+  case 4:
+    return process.nextTick(function afterTickThree() {
+      fn.call(null, arg1, arg2, arg3);
+    });
+  default:
+    args = new Array(len - 1);
+    i = 0;
+    while (i < args.length) {
+      args[i++] = arguments[i];
+    }
+    return process.nextTick(function afterTick() {
+      fn.apply(null, args);
+    });
+  }
+}
+
+}).call(this,require('_process'))
+},{"_process":13}],13:[function(require,module,exports){
+// shim for using process in browser
+var process = module.exports = {};
+
+// cached from whatever global is present so that test runners that stub it
+// don't break things.  But we need to wrap it in a try catch in case it is
+// wrapped in strict mode code which doesn't define any globals.  It's inside a
+// function because try/catches deoptimize in certain engines.
+
+var cachedSetTimeout;
+var cachedClearTimeout;
+
+function defaultSetTimout() {
+    throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout () {
+    throw new Error('clearTimeout has not been defined');
+}
+(function () {
+    try {
+        if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+        } else {
+            cachedSetTimeout = defaultSetTimout;
+        }
+    } catch (e) {
+        cachedSetTimeout = defaultSetTimout;
+    }
+    try {
+        if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+        } else {
+            cachedClearTimeout = defaultClearTimeout;
+        }
+    } catch (e) {
+        cachedClearTimeout = defaultClearTimeout;
+    }
+} ())
+function runTimeout(fun) {
+    if (cachedSetTimeout === setTimeout) {
+        //normal enviroments in sane situations
+        return setTimeout(fun, 0);
+    }
+    // if setTimeout wasn't available but was latter defined
+    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+        cachedSetTimeout = setTimeout;
+        return setTimeout(fun, 0);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedSetTimeout(fun, 0);
+    } catch(e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+        } catch(e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+        }
+    }
+
+
+}
+function runClearTimeout(marker) {
+    if (cachedClearTimeout === clearTimeout) {
+        //normal enviroments in sane situations
+        return clearTimeout(marker);
+    }
+    // if clearTimeout wasn't available but was latter defined
+    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+        cachedClearTimeout = clearTimeout;
+        return clearTimeout(marker);
+    }
+    try {
+        // when when somebody has screwed with setTimeout but no I.E. maddness
+        return cachedClearTimeout(marker);
+    } catch (e){
+        try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+        } catch (e){
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+        }
+    }
+
+
+
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
+
+function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
+    draining = false;
+    if (currentQueue.length) {
+        queue = currentQueue.concat(queue);
+    } else {
+        queueIndex = -1;
+    }
+    if (queue.length) {
+        drainQueue();
+    }
+}
+
+function drainQueue() {
+    if (draining) {
+        return;
+    }
+    var timeout = runTimeout(cleanUpNextTick);
+    draining = true;
+
+    var len = queue.length;
+    while(len) {
+        currentQueue = queue;
+        queue = [];
+        while (++queueIndex < len) {
+            if (currentQueue) {
+                currentQueue[queueIndex].run();
             }
-        </style>
-    </head>
-    <body>
-        <div class="container">
+        }
+        queueIndex = -1;
+        len = queue.length;
+    }
+    currentQueue = null;
+    draining = false;
+    runClearTimeout(timeout);
+}
 
-            <h1 class="text-center">Mnemonic Code Converter</h1>
-            <p class="version">v0.1.1</p>
-            <hr>
-            <div class="row">
-                <div class="col-md-12">
-                    <h2>Mnemonic</h2>
-                    <form class="form-horizontal" role="form">
-                        <div class="form-group">
-                            <div class="col-sm-2"></div>
-                            <div class="col-sm-10">
-                                <p data-translate>You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word is a checksum).</p>
-                                <p data-translate-html>
-                                    For more info see the
-                                    <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" target="_blank">BIP39 spec</a>.
-                                </p>
-                            </div>
-                        </div>
-                        <div class="form-group generate-container">
-                            <label class="col-sm-2 control-label"></label>
-                            <div class="col-sm-10">
-                                <div class="form-inline">
-                                    <div class="input-group-inline">
-                                        <span data-translate>Generate a random mnemonic, or enter your own below</span>:
-                                        <button class="btn generate">Generate</button>
-                                        <select id="strength" class="strength form-control">
-                                            <option value="3">3</option>
-                                            <option value="6">6</option>
-                                            <option value="9">9</option>
-                                            <option value="12">12</option>
-                                            <option value="15" selected>15</option>
-                                            <option value="18">18</option>
-                                            <option value="21">21</option>
-                                            <option value="24">24</option>
-                                        </select>
-                                        <span data-translate>words</span>
-                                    </div>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="entropy-container hidden">
-                            <div class="form-group text-danger">
-                                <label class="col-sm-2 control-label" data-translate>Warning</label>
-                                <div class="col-sm-10 form-control-static">
-                                    <span data-translate>Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.</span>
-                                    <a href="#entropy-notes" data-translate>Read more</a>
-                                </div>
-                            </div>
-                            <div class="form-group">
-                                <label for="entropy" class="col-sm-2 control-label" data-translate>Entropy</label>
-                                <div class="col-sm-7">
-                                    <textarea id="entropy" rows="2" class="entropy form-control" placeholder="Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards" data-translate-placeholder></textarea>
-                                    <div class="row">
-                                        <label class="col-sm-3 control-label" data-translate><span class="more-info" data-translate-title title="Based on estimates from zxcvbn using Filtered Entropy">Time To Crack</span></label>
-                                        <div class="crack-time col-sm-3 form-control-static"></div>
-                                        <label class="col-sm-3 control-label" data-translate>Event Count</label>
-                                        <div class="event-count col-sm-3 form-control-static"></div>
-                                    </div>
-                                    <div class="row">
-                                        <label class="col-sm-3 control-label" data-translate>Entropy Type</label>
-                                        <div class="type col-sm-3 form-control-static"></div>
-                                        <label class="col-sm-3 control-label" data-translate>Bits Per Event</label>
-                                        <div class="bits-per-event col-sm-3 form-control-static"></div>
-                                    </div>
-                                    <div class="row">
-                                        <label class="col-sm-3 control-label" data-translate>Raw Entropy Words</label>
-                                        <div class="word-count col-sm-3 form-control-static"></div>
-                                        <label class="col-sm-3 control-label" data-translate><span class="more-info" data-translate-title title="Total bits of entropy may be less than indicated if any entropy event uses a weak source.">Total Bits</span></label>
-                                        <div class="bits col-sm-3 form-control-static"></div>
-                                    </div>
-                                    <label class="col-sm-3 control-label" data-translate>Filtered Entropy</label>
-                                    <div class="filtered col-sm-9 form-control-static"></div>
-                                    <label class="col-sm-3 control-label" data-translate>Raw Binary</label>
-                                    <div class="binary col-sm-9 form-control-static"></div>
-                                    <label class="col-sm-3 control-label" data-translate>Mnemonic Length</label>
-                                    <div class="col-sm-9">
-                                        <select class="mnemonic-length form-control">
-                                            <option value="raw" selected data-translate>Use Raw Entropy (3 words per 32 bits)</option>
-                                            <option value="12">12 <span data-translate>Words</span></option>
-                                            <option value="15">15 <span data-translate>Words</option>
-                                            <option value="18">18 <span data-translate>Words</span></option>
-                                            <option value="21">21 <span data-translate>Words</span></option>
-                                            <option value="24">24 <span data-translate>Words</span></option>
-                                        </select>
-                                    </div>
-                                </div>
-                                <div class="col-sm-3">
-                                    <p data-translate>Valid entropy values include:</p>
-                                    <ul>
-                                        <li><strong data-translate>Binary</strong> [0-1]<br>101010011</li>
-                                        <li><strong data-translate>Base 6</strong> [0-5]<br>123434014</li>
-                                        <li><strong data-translate>Dice</strong> [1-6]<br>62535634</li>
-                                        <li><strong data-translate>Base 10</strong> [0-9]<br>90834528</li>
-                                        <li><strong data-translate>Hex</strong> [0-9A-F]<br>4187a8bfd9</li>
-                                        <li><strong data-translate>Card</strong> [A2-9TJQK][CDHS]<br>ahqs9dtc</li>
-                                    </ul>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <div class="col-sm-2"></div>
-                            <div class="col-sm-10 checkbox">
-                                <label>
-                                    <input type="checkbox" class="use-entropy">
-                                    <span data-translate>Supply my own source of entropy</span>
-                                </label>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label class="col-sm-2 control-label" data-translate>Mnemonic Language</label>
-                            <div class="col-sm-10 languages">
-                                <div class="form-control no-border">
-                                    <a href="#english">English</a>
-                                    <a href="#japanese" title="Japanese">日本語</a>
-                                    <a href="#spanish"  title="Spanish">Español</a>
-                                    <a href="#chinese_simplified"  title="Chinese (Simplified)">中文(简体)</a>
-                                    <a href="#chinese_traditional"  title="Chinese (Traditional)">中文(繁體)</a>
-                                    <a href="#french"  title="French">Français</a>
-                                    <a href="#italian"  title="Italian">Italiano</a>
-                                </div>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="phrase" class="col-sm-2 control-label" data-translate>BIP39 Mnemonic</label>
-                            <div class="col-sm-10">
-                                <textarea id="phrase" class="phrase form-control" data-show-qr></textarea>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="passphrase" class="col-sm-2 control-label" data-translate>BIP39 Passphrase (optional)</label>
-                            <div class="col-sm-10">
-                                <textarea id="passphrase" class="passphrase form-control"></textarea>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="seed" class="col-sm-2 control-label" data-translate>BIP39 Seed</label>
-                            <div class="col-sm-10">
-                                <textarea id="seed" class="seed form-control" readonly="readonly" data-show-qr></textarea>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="network-phrase" class="col-sm-2 control-label" data-translate>Coin</label>
-                            <div class="col-sm-10">
-                                <select id="network-phrase" class="network form-control">
-                                    <!-- populated by javascript -->
-                                </select>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="root-key" class="col-sm-2 control-label" data-translate>BIP32 Root Key</label>
-                            <div class="col-sm-10">
-                                <textarea id="root-key" class="root-key form-control" data-show-qr></textarea>
-                            </div>
-                        </div>
-                    </form>
-                </div>
-            </div>
+process.nextTick = function (fun) {
+    var args = new Array(arguments.length - 1);
+    if (arguments.length > 1) {
+        for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+        }
+    }
+    queue.push(new Item(fun, args));
+    if (queue.length === 1 && !draining) {
+        runTimeout(drainQueue);
+    }
+};
 
-            <hr>
+// v8 likes predictible objects
+function Item(fun, array) {
+    this.fun = fun;
+    this.array = array;
+}
+Item.prototype.run = function () {
+    this.fun.apply(null, this.array);
+};
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
 
-            <div class="row">
-                <div class="col-md-12">
-                    <h2>Derivation Path</h2>
-                    <ul class="derivation-type nav nav-tabs" role="tablist">
-                        <li id="bip44-tab" class="active">
-                            <a href="#bip44" role="tab" data-toggle="tab">BIP44</a>
-                        </li>
-                        <li id="bip32-tab">
-                            <a href="#bip32" role="tab" data-toggle="tab">BIP32</a>
-                        </li>
-                    </ul>
-                    <div class="derivation-type tab-content">
-                        <div id="bip44" class="tab-pane active">
-                            <form class="form-horizontal" role="form">
-                                <br>
-                                <div class="col-sm-2"></div>
-                                <div class="col-sm-10">
-                                    <p data-translate-html>
-                                        For more info see the
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">BIP44 spec</a>.
-                                    </p>
-                                </div>
-                                <div class="form-group">
-                                    <label for="purpose" class="col-sm-2 control-label">
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#purpose" target="_blank" data-translate>Purpose</a>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="purpose" type="text" class="purpose form-control" value="44">
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="coin" class="col-sm-2 control-label">
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#registered-coin-types" target="_blank" data-translate>Coin</a>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="coin" type="text" class="coin form-control" value="0">
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account" class="col-sm-2 control-label">
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#account" target="_blank" data-translate>Account</a>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="account" type="text" class="account form-control" value="0">
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="change" class="col-sm-2 control-label">
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki#change" target="_blank" data-translate>External / Internal</a>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <input id="change" type="text" class="change form-control" value="0">
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label class="col-sm-2 control-label">
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <p data-translate>The account extended keys can be used for importing to most BIP44 compatible wallets, such as mycelium or electrum.</p>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account-xprv" class="col-sm-2 control-label">
-                                        <span data-translate>Account Extended Private Key</span>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="account-xpub" class="col-sm-2 control-label">
-                                        <span data-translate>Account Extended Public Key</span>
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label class="col-sm-2 control-label">
-                                    </label>
-                                    <div class="col-sm-10">
-                                        <p data-translate>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="bip44-path" class="col-sm-2 control-label" data-translate>BIP32 Derivation Path</label>
-                                    <div class="col-sm-10">
-                                        <input id="bip44-path" type="text" class="path form-control" value="m/44'/0'/0'/0" readonly="readonly">
-                                    </div>
-                                </div>
-                            </form>
-                        </div>
-                        <div id="bip32" class="tab-pane">
-                            <form class="form-horizontal" role="form">
-                                <br>
-                                <div class="col-sm-2"></div>
-                                <div class="col-sm-10">
-                                    <p data-translate>
-                                        For more info see the
-                                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">BIP32 spec</a>
-                                    </p>
-                                </div>
-                                <div class="form-group">
-                                    <label for="bip32-client" class="col-sm-2 control-label" data-translate>Client</label>
-                                    <div class="col-sm-10">
-                                        <select id="bip32-client" class="client form-control">
-                                            <option value="custom">Custom derivation path</option>
-                                            <!-- populated by javascript -->
-                                        </select>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="bip32-path" class="col-sm-2 control-label" data-translate>BIP32 Derivation Path</label>
-                                    <div class="col-sm-10">
-                                        <input id="bip32-path" type="text" class="path form-control" value="m/0">
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <div class="col-sm-2"></div>
-                                    <label class="col-sm-10">
-                                        <input class="hardened-addresses" type="checkbox">
-                                        <span data-translate>Use hardened addresses</span>
-                                    </label>
-                                </div>
-                                <div class="form-group">
-                                    <label for="core-path" class="col-sm-2 control-label" data-translate>Bitcoin Core</label>
-                                    <div class="col-sm-10">
-                                        <p class="form-control no-border" data-translate-html>
-                                        Use path <code>m/0'/0'</code> with hardened addresses.
-                                        </p>
-                                        <p class="form-control no-border" data-translate-html>
-                                            For more info see the
-                                            <a href="https://github.com/bitcoin/bitcoin/pull/8035" target="_blank">Bitcoin Core BIP32 implementation</a>
-                                        </p>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label for="core-path" class="col-sm-2 control-label" data-translate>Multibit</label>
-                                    <div class="col-sm-10">
-                                        <p class="form-control no-border">
-                                            <span data-translate-html>Use path <code>m/0'/0</code>.</span>
-                                        </p>
-                                        <p class="form-control no-border">
-                                            <span data-translate>For more info see</span>
-                                            <a href="https://multibit.org/" target="_blank">MultiBit HD</a>
-                                        </p>
-                                    </div>
-                                </div>
-                                <div class="form-group">
-                                    <label class="col-sm-2 control-label" data-translate>Block Explorers</label>
-                                    <div class="col-sm-10">
-                                        <p class="form-control no-border">
-                                            <span data-translate-html>Use path <code>m/44'/0'/0'</code>.</span>
-                                            <span data-translate-html>Only enter the <code>xpub</code> extended key into block explorer search fields, never the <code>xprv</code> key.</span>
-                                        </p>
-                                        <p class="form-control no-border">
-                                            <span data-translate>Can be used with</span>:
-                                            <a href="https://blockchain.info/" target="_blank">blockchain.info</a>
-                                        </p>
-                                    </div>
-                                </div>
-                            </form>
-                        </div>
-                    </div>
-                    <form class="form-horizontal" role="form">
-                        <div class="form-group">
-                            <label for="extended-priv-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Private Key</label>
-                            <div class="col-sm-10">
-                                <textarea id="extended-priv-key" class="extended-priv-key form-control" readonly="readonly" data-show-qr></textarea>
-                            </div>
-                        </div>
-                        <div class="form-group">
-                            <label for="extended-pub-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Public Key</label>
-                            <div class="col-sm-10">
-                                <textarea id="extended-pub-key" class="extended-pub-key form-control" readonly="readonly" data-show-qr></textarea>
-                            </div>
-                        </div>
-                    </form>
-                </div>
-            </div>
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+process.prependListener = noop;
+process.prependOnceListener = noop;
+
+process.listeners = function (name) { return [] }
+
+process.binding = function (name) {
+    throw new Error('process.binding is not supported');
+};
+
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+    throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+},{}],14:[function(require,module,exports){
+module.exports = require('./lib/_stream_duplex.js');
+
+},{"./lib/_stream_duplex.js":15}],15:[function(require,module,exports){
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+var keys = objectKeys(Writable.prototype);
+for (var v = 0; v < keys.length; v++) {
+  var method = keys[v];
+  if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+}
+
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+
+  Readable.call(this, options);
+  Writable.call(this, options);
+
+  if (options && options.readable === false) this.readable = false;
+
+  if (options && options.writable === false) this.writable = false;
+
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+
+  this.once('end', onend);
+}
+
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  processNextTick(onEndNT, this);
+}
+
+function onEndNT(self) {
+  self.end();
+}
+
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
+}
+},{"./_stream_readable":17,"./_stream_writable":19,"core-util-is":6,"inherits":9,"process-nextick-args":12}],16:[function(require,module,exports){
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+
+  Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
+},{"./_stream_transform":18,"core-util-is":6,"inherits":9}],17:[function(require,module,exports){
+(function (process){
+'use strict';
+
+module.exports = Readable;
+
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var isArray = require('isarray');
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+
+/*<replacement>*/
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function (emitter, type) {
+  return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var debugUtil = require('util');
+var debug = void 0;
+if (debugUtil && debugUtil.debuglog) {
+  debug = debugUtil.debuglog('stream');
+} else {
+  debug = function () {};
+}
+/*</replacement>*/
+
+var BufferList = require('./internal/streams/BufferList');
+var StringDecoder;
+
+util.inherits(Readable, Stream);
+
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
+  if (typeof emitter.prependListener === 'function') {
+    return emitter.prependListener(event, fn);
+  } else {
+    // This is a hack to make sure that our error handler is attached before any
+    // userland ones.  NEVER DO THIS. This is here only because this code needs
+    // to continue to work with older versions of Node.js that do not include
+    // the prependListener() method. The goal is to eventually remove this hack.
+    if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+  }
+}
+
+function ReadableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // object stream flag. Used to make read(n) ignore n and to
+  // make all the buffer merging and length checks go away
+  this.objectMode = !!options.objectMode;
 
-            <hr>
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
 
-            <div class="row">
-                <div class="col-md-12">
-                    <h2>Derived Addresses</h2>
-                    <p data-translate>Note these addreses are derived from the BIP32 Extended Key</p>
-                    <table class="table table-striped">
-                        <thead>
-                            <th>
-                                <div class="input-group">
-                                    <span data-translate>Path</span>&nbsp;&nbsp;
-                                    <button class="index-toggle" data-translate>Toggle</button>
-                                </div>
-                            </th>
-                            <th>
-                                <div class="input-group">
-                                    <span data-translate>Address</span>&nbsp;&nbsp;
-                                    <button class="address-toggle" data-translate>Toggle</button>
-                                </div>
-                            </th>
-                            <th>
-                                <div class="input-group">
-                                    <span data-translate>Public Key</span>&nbsp;&nbsp;
-                                    <button class="public-key-toggle" data-translate>Toggle</button>
-                                </div>
-                            </th>
-                            <th>
-                                <div class="input-group">
-                                    <span data-translate>Private Key</span>&nbsp;&nbsp;
-                                    <button class="private-key-toggle" data-translate>Toggle</button>
-                                </div>
-                            </th>
-                        </thead>
-                        <tbody class="addresses monospace">
-                            <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
-                            <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
-                            <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
-                            <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
-                            <tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
-                        </tbody>
-                    </table>
-                </div>
-            </div>
-            <span data-translate>Show more rows</span>:
-            <input type="number" class="rows-to-add" value="20">
-            <button class="more" data-translate>Show</button>
+  // the point at which it stops calling _read() to fill the buffer
+  // Note: 0 is a valid value, means "don't call _read preemptively ever"
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-            <hr>
+  // cast to ints.
+  this.highWaterMark = ~~this.highWaterMark;
 
-            <div class="row">
-                <div class="col-md-12">
-                    <h2 data-translate>More info</h2>
-                    <h3>BIP39 <span class="small" data-translate>Mnemonic code for generating deterministic keys</span></h3>
-                    <p data-translate-html>
-                        Read more at the
-                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki">official BIP39 spec</a>
-                    </p>
-                    <h3>BIP32 <span class="small" data-translate>Hierarchical Deterministic Wallets</span></h3>
-                    <p data-translate-html>
-                        Read more at the
-                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki" target="_blank">official BIP32 spec</a>
-                    </p>
-                    <p data-translate-html>
-                        See the demo at
-                        <a href="http://bip32.org/" target="_blank">bip32.org</a>
-                    </p>
-                    <h3>BIP44 <span class="small" data-translate>Multi-Account Hierarchy for Deterministic Wallets</span></h3>
-                    <p data-translate-html>
-                        Read more at the
-                        <a href="https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki" target="_blank">official BIP44 spec</a>
-                    </p>
-                    <h3 data-translate>Private Keys</h3>
-                    <p>
-                        <span data-translate-html>
-                            Use private keys at
-                            <a href="https://web.archive.org/web/20150707020924/https://brainwallet.org/" target="_blank">brainwallet.org</a>.
-                        </span>
-                        <span data-translate>Be careful - it can be easy to make mistakes if you don't know what you're doing.</span>
-                    </p>
-                    <h3 id="entropy-notes" data-translate>Entropy</h3>
-                    <p>
-                        <span data-translate-html>
-                            Entropy values must be sourced from a
-                            <a href="https://en.wikipedia.org/wiki/Random_number_generation" target="_blank">strong source of randomness</a>.
-                        </span>
-                        <span data-translate>This means flipping a fair coin, rolling a fair dice, noise measurements etc.</span>
-                        <span data-translate-html>
-                            Do <strong>NOT</strong> use phrases from books, lyrics from songs, your birthday or steet address,
-                            keyboard mashing, or anything you <i>think</i> is random, because chances are overwhelming it isn't
-                            random enough for the needs of this tool.
-                        </span>
-                    </p>
-                    <p>
-                        <strong><span data-translate>Do not store entropy.</span></strong>
-                    </p>
-                    <p>
-                        <span data-translate>Storing entropy (such as keeping a deck of cards in a specific shuffled order) is unreliable compared to storing a mnemonic.</span>
-                        <span data-translate>Instead of storing entropy, store the mnemonic generated from the entropy.</span>
-                        <span data-translate-html><a href="https://en.wikipedia.org/wiki/Steganography#Physical" target="_blank">Steganography</a> may be beneficial when storing the mnemonic.</span>
-                    </p>
-                    <p>
-                        <span data-translate-html>
-                            The random mnemonic generator on this page uses a
-                            <a href="https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues" target="_blank">cryptographically secure random number generator</a>.
-                        </span>
-                        <span data-translate>The built in random generator can generally be trusted more than your own intuition about randomness.</span>
-                        <span data-translate>If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work.</span>
-                        <span data-translate>In that case you might choose to use your own source of entropy.</span>
-                    </p>
-                    <p>
-                        <a href="https://bitcointalk.org/index.php?topic=311000.msg3345309#msg3345309" target="_blank" data-translate>You are not a good source of entropy.</a>
-                    </p>
-                    <h3 data-translate>License</h3>
-                    <p>
-                    <span data-translate-html>Please refer to <a href="https://github.com/iancoleman/bip39/blob/master/LICENSE" target="_blank">the software license</a> for more detail.
-                    </span>
-                    </p>
-                    <p data-translate>The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.</p>
-                </div>
-            </div>
+  // A linked list is used to store data chunks instead of an array because the
+  // linked list can remove elements from the beginning faster than
+  // array.shift()
+  this.buffer = new BufferList();
+  this.length = 0;
+  this.pipes = null;
+  this.pipesCount = 0;
+  this.flowing = null;
+  this.ended = false;
+  this.endEmitted = false;
+  this.reading = false;
 
-            <hr>
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
 
-            <div class="row">
-                <div class="col-md-12">
+  // whenever we return null, then we set a flag to say
+  // that we're awaiting a 'readable' event emission.
+  this.needReadable = false;
+  this.emittedReadable = false;
+  this.readableListening = false;
+  this.resumeScheduled = false;
 
-                    <h2 data-translate>Offline Usage</h2>
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-                    <p data-translate>
-                    You can use this tool without having to be online.
-                    </p>
-                    <p data-translate>
-                    In your browser, select file save-as, and save this page
-                    as a file.
-                    </p>
-                    <p data-translate>
-                    Double-click that file to open it in a browser
-                    on any offline computer.
-                    </p>
-                    <p>
-                    <span data-translate>Alternatively, download the file from the repository</span>
-                    -
-                    <a href="https://github.com/iancoleman/bip39">https://github.com/iancoleman/bip39</a>
-                    </p>
+  // when piping, we only care about 'readable' events that happen
+  // after read()ing all the bytes and not getting any pushback.
+  this.ranOut = false;
 
-                </div>
-            </div>
+  // the number of writers that are awaiting a drain event in .pipe()s
+  this.awaitDrain = 0;
 
-            <hr>
+  // if true, a maybeReadMore has been scheduled
+  this.readingMore = false;
 
-            <div class="row">
-                <div class="col-md-12">
+  this.decoder = null;
+  this.encoding = null;
+  if (options.encoding) {
+    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+    this.decoder = new StringDecoder(options.encoding);
+    this.encoding = options.encoding;
+  }
+}
 
-                    <h2 data-translate>This project is 100% open-source code</h2>
+function Readable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-                    <p>
-                        <span data-translate>Get the source code from the repository</span>
-                        -
-                        <a href="https://github.com/iancoleman/bip39" target="_blank">
-                            https://github.com/iancoleman/bip39
-                        </a>
-                    </p>
+  if (!(this instanceof Readable)) return new Readable(options);
 
-                    <h3 data-translate>Libraries</h3>
+  this._readableState = new ReadableState(options, this);
 
-                    <p>
-                        <span>BitcoinJS - </span>
-                        <a href="https://github.com/bitcoinjs/bitcoinjs-lib" target="_blank">
-                            https://github.com/bitcoinjs/bitcoinjs-lib
-                        </a>
-                    </p>
+  // legacy
+  this.readable = true;
 
-                    <p>
-                        <span>jsBIP39 - </span>
-                        <a href="https://github.com/iancoleman/jsbip39" target="_blank">
-                            https://github.com/iancoleman/jsbip39
-                        </a>
-                    </p>
+  if (options && typeof options.read === 'function') this._read = options.read;
 
-                    <p>
-                        <span>sjcl - </span>
-                        <a href="https://github.com/bitwiseshiftleft/sjcl" target="_blank">
-                            https://github.com/bitwiseshiftleft/sjcl
-                        </a>
-                    </p>
+  Stream.call(this);
+}
 
-                    <p>
-                        <span>jQuery - </span>
-                        <a href="https://jquery.com/" target="_blank">
-                            https://jquery.com/
-                        </a>
-                    </p>
+// Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+Readable.prototype.push = function (chunk, encoding) {
+  var state = this._readableState;
 
-                    <p>
-                        <span>Twitter Bootstrap - </span>
-                        <a href="http://getbootstrap.com/" target="_blank">
-                            http://getbootstrap.com/
-                        </a>
-                    </p>
+  if (!state.objectMode && typeof chunk === 'string') {
+    encoding = encoding || state.defaultEncoding;
+    if (encoding !== state.encoding) {
+      chunk = bufferShim.from(chunk, encoding);
+      encoding = '';
+    }
+  }
 
-                </div>
-            </div>
+  return readableAddChunk(this, state, chunk, encoding, false);
+};
 
-        </div>
+// Unshift should *always* be something directly out of read()
+Readable.prototype.unshift = function (chunk) {
+  var state = this._readableState;
+  return readableAddChunk(this, state, chunk, '', true);
+};
 
-        <div class="qr-container hidden">
-            <div class="qr-hint bg-primary hidden" data-translate>Click field to hide QR</div>
-            <div class="qr-hint bg-primary" data-translate>Click field to show QR</div>
-            <div class="qr-hider hidden">
-                <div class="qr-image"></div>
-                <div class="qr-warning bg-primary" data-translate>Caution: Scanner may keep history</div>
-            </div>
-        </div>
+Readable.prototype.isPaused = function () {
+  return this._readableState.flowing === false;
+};
 
-        <div class="feedback-container">
-            <div class="feedback">Loading...</div>
-        </div>
+function readableAddChunk(stream, state, chunk, encoding, addToFront) {
+  var er = chunkInvalid(state, chunk);
+  if (er) {
+    stream.emit('error', er);
+  } else if (chunk === null) {
+    state.reading = false;
+    onEofChunk(stream, state);
+  } else if (state.objectMode || chunk && chunk.length > 0) {
+    if (state.ended && !addToFront) {
+      var e = new Error('stream.push() after EOF');
+      stream.emit('error', e);
+    } else if (state.endEmitted && addToFront) {
+      var _e = new Error('stream.unshift() after end event');
+      stream.emit('error', _e);
+    } else {
+      var skipAdd;
+      if (state.decoder && !addToFront && !encoding) {
+        chunk = state.decoder.write(chunk);
+        skipAdd = !state.objectMode && chunk.length === 0;
+      }
 
-        <script type="text/template" id="address-row-template">
-            <tr>
-                <td class="index"><span></span></td>
-                <td class="address"><span data-show-qr></span></td>
-                <td class="pubkey"><span data-show-qr></span></td>
-                <td class="privkey"><span data-show-qr></span></td>
-            </tr>
-        </script>
-        <script>// From
-// https://raw.githubusercontent.com/inexorabletash/polyfill/a6bc6ced78160c994f76a909b6ff6bbbab3d43de/es6.js
-// Required for ethereumjs-utils.js when run in phantomjs-2.1.1
-// but is not required in any modern browsers.
-// For more information, see
-// https://www.bountysource.com/issues/38485709-error-rendering-plot-with-phantomjs
+      if (!addToFront) state.reading = false;
 
-//----------------------------------------------------------------------
-//
-// ECMAScript 2015 Polyfills
-//
-//----------------------------------------------------------------------
+      // Don't add to the buffer if we've decoded to an empty string chunk and
+      // we're not in object mode
+      if (!skipAdd) {
+        // if we want the data now, just emit it.
+        if (state.flowing && state.length === 0 && !state.sync) {
+          stream.emit('data', chunk);
+          stream.read(0);
+        } else {
+          // update the buffer info.
+          state.length += state.objectMode ? 1 : chunk.length;
+          if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
 
-(function (global) {
-  "use strict";
+          if (state.needReadable) emitReadable(stream);
+        }
+      }
 
-  // Set this to always override native implementations, for testing
-  // the polyfill in browsers with partial/full ES2015 support.
-  var OVERRIDE_NATIVE_FOR_TESTING = false;
+      maybeReadMore(stream, state);
+    }
+  } else if (!addToFront) {
+    state.reading = false;
+  }
 
-  var undefined = (void 0); // Paranoia
+  return needMoreData(state);
+}
 
-  // Helpers
+// if it's past the high water mark, we can push in some more.
+// Also, if we have no data yet, we can stand some
+// more bytes.  This is to work around cases where hwm=0,
+// such as the repl.  Also, if the push() triggered a
+// readable event, and the user called read(largeNumber) such that
+// needReadable was set, then we ought to push more, so that another
+// 'readable' event will be triggered.
+function needMoreData(state) {
+  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
+}
 
-  function strict(o) {
-    return o === global ? undefined : o;
+// backwards compatibility.
+Readable.prototype.setEncoding = function (enc) {
+  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+  this._readableState.decoder = new StringDecoder(enc);
+  this._readableState.encoding = enc;
+  return this;
+};
+
+// Don't raise the hwm > 8MB
+var MAX_HWM = 0x800000;
+function computeNewHighWaterMark(n) {
+  if (n >= MAX_HWM) {
+    n = MAX_HWM;
+  } else {
+    // Get the next highest power of 2 to prevent increasing hwm excessively in
+    // tiny amounts
+    n--;
+    n |= n >>> 1;
+    n |= n >>> 2;
+    n |= n >>> 4;
+    n |= n >>> 8;
+    n |= n >>> 16;
+    n++;
   }
+  return n;
+}
 
-  function hook(o, p, f) {
-    var op = o[p];
-    console.assert(typeof op === 'function', 'Hooking a non-function');
-    o[p] = function() {
-      var o = strict(this);
-      var r = f.apply(o, arguments);
-      return r !== undefined ? r : op.apply(o, arguments);
-    };
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function howMuchToRead(n, state) {
+  if (n <= 0 || state.length === 0 && state.ended) return 0;
+  if (state.objectMode) return 1;
+  if (n !== n) {
+    // Only flow one buffer at a time
+    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+  }
+  // If we're asking for more than the current hwm, then raise the hwm.
+  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+  if (n <= state.length) return n;
+  // Don't have enough
+  if (!state.ended) {
+    state.needReadable = true;
+    return 0;
   }
+  return state.length;
+}
 
-  function isSymbol(s) {
-    return (typeof s === 'symbol') || ('Symbol' in global && s instanceof global.Symbol);
+// you can override either this method, or the async _read(n) below.
+Readable.prototype.read = function (n) {
+  debug('read', n);
+  n = parseInt(n, 10);
+  var state = this._readableState;
+  var nOrig = n;
+
+  if (n !== 0) state.emittedReadable = false;
+
+  // if we're doing read(0) to trigger a readable event, but we
+  // already have a bunch of data in the buffer, then just trigger
+  // the 'readable' event and move on.
+  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
+    debug('read: emitReadable', state.length, state.ended);
+    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+    return null;
   }
 
-  function getPropertyDescriptor(target, name) {
-    var desc = Object.getOwnPropertyDescriptor(target, name);
-    var proto = Object.getPrototypeOf(target);
-    while (!desc && proto) {
-      desc = Object.getOwnPropertyDescriptor(proto, name);
-      proto = Object.getPrototypeOf(proto);
-    }
-    return desc;
+  n = howMuchToRead(n, state);
+
+  // if we've ended, and we're now clear, then finish it up.
+  if (n === 0 && state.ended) {
+    if (state.length === 0) endReadable(this);
+    return null;
   }
 
-  var enqueue = (function(nativePromise, nativeSetImmediate) {
-    if (nativePromise)
-      return function(job) { nativePromise.resolve().then(function() { job(); }); };
-    if (nativeSetImmediate)
-      return function(job) { nativeSetImmediate(job); };
-    return function(job) { setTimeout(job, 0); };
-  }(global['Promise'], global['setImmediate']));
+  // All the actual chunk generation logic needs to be
+  // *below* the call to _read.  The reason is that in certain
+  // synthetic stream cases, such as passthrough streams, _read
+  // may be a completely synchronous operation which may change
+  // the state of the read buffer, providing enough data when
+  // before there was *not* enough.
+  //
+  // So, the steps are:
+  // 1. Figure out what the state of things will be after we do
+  // a read from the buffer.
+  //
+  // 2. If that resulting state will trigger a _read, then call _read.
+  // Note that this may be asynchronous, or synchronous.  Yes, it is
+  // deeply ugly to write APIs this way, but that still doesn't mean
+  // that the Readable class should behave improperly, as streams are
+  // designed to be sync/async agnostic.
+  // Take note if the _read call is sync or async (ie, if the read call
+  // has returned yet), so that we know whether or not it's safe to emit
+  // 'readable' etc.
+  //
+  // 3. Actually pull the requested chunks out of the buffer and return.
 
-  function define(o, p, v, override) {
-    if (p in o && !override && !OVERRIDE_NATIVE_FOR_TESTING)
-      return;
+  // if we need a readable event, then we need to do some reading.
+  var doRead = state.needReadable;
+  debug('need readable', doRead);
 
-    if (typeof v === 'function') {
-      // Sanity check that functions are appropriately named (where possible)
-      console.assert(isSymbol(p) || !('name' in v) || v.name === p || v.name === p + '_', 'Expected function name "' + p.toString() + '", was "' + v.name + '"');
-      Object.defineProperty(o, p, {
-        value: v,
-        configurable: true,
-        enumerable: false,
-        writable: true
-      });
-    } else {
-      Object.defineProperty(o, p, {
-        value: v,
-        configurable: false,
-        enumerable: false,
-        writable: false
-      });
+  // if we currently have less than the highWaterMark, then also read some
+  if (state.length === 0 || state.length - n < state.highWaterMark) {
+    doRead = true;
+    debug('length less than watermark', doRead);
+  }
+
+  // however, if we've ended, then there's no point, and if we're already
+  // reading, then it's unnecessary.
+  if (state.ended || state.reading) {
+    doRead = false;
+    debug('reading or ended', doRead);
+  } else if (doRead) {
+    debug('do read');
+    state.reading = true;
+    state.sync = true;
+    // if the length is currently zero, then we *need* a readable event.
+    if (state.length === 0) state.needReadable = true;
+    // call internal read method
+    this._read(state.highWaterMark);
+    state.sync = false;
+    // If _read pushed data synchronously, then `reading` will be false,
+    // and we need to re-evaluate how much data we can return to the user.
+    if (!state.reading) n = howMuchToRead(nOrig, state);
+  }
+
+  var ret;
+  if (n > 0) ret = fromList(n, state);else ret = null;
+
+  if (ret === null) {
+    state.needReadable = true;
+    n = 0;
+  } else {
+    state.length -= n;
+  }
+
+  if (state.length === 0) {
+    // If we have nothing in the buffer, then we want to know
+    // as soon as we *do* get something into the buffer.
+    if (!state.ended) state.needReadable = true;
+
+    // If we tried to read() past the EOF, then emit end on the next tick.
+    if (nOrig !== n && state.ended) endReadable(this);
+  }
+
+  if (ret !== null) this.emit('data', ret);
+
+  return ret;
+};
+
+function chunkInvalid(state, chunk) {
+  var er = null;
+  if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  return er;
+}
+
+function onEofChunk(stream, state) {
+  if (state.ended) return;
+  if (state.decoder) {
+    var chunk = state.decoder.end();
+    if (chunk && chunk.length) {
+      state.buffer.push(chunk);
+      state.length += state.objectMode ? 1 : chunk.length;
     }
   }
+  state.ended = true;
+
+  // emit 'readable' now to make sure it gets picked up.
+  emitReadable(stream);
+}
+
+// Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow.  This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+function emitReadable(stream) {
+  var state = stream._readableState;
+  state.needReadable = false;
+  if (!state.emittedReadable) {
+    debug('emitReadable', state.flowing);
+    state.emittedReadable = true;
+    if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
+  }
+}
+
+function emitReadable_(stream) {
+  debug('emit readable');
+  stream.emit('readable');
+  flow(stream);
+}
+
+// at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data.  that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+function maybeReadMore(stream, state) {
+  if (!state.readingMore) {
+    state.readingMore = true;
+    processNextTick(maybeReadMore_, stream, state);
+  }
+}
 
-  function set_internal(o, p, v) {
-    Object.defineProperty(o, p, {
-      value: v,
-      configurable: false,
-      enumerable: false,
-      writable: true
-    });
+function maybeReadMore_(stream, state) {
+  var len = state.length;
+  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
+    debug('maybeReadMore read 0');
+    stream.read(0);
+    if (len === state.length)
+      // didn't get any data, stop spinning.
+      break;else len = state.length;
   }
+  state.readingMore = false;
+}
 
-  // Snapshot intrinsic functions
-  var $isNaN = global.isNaN,
-      $parseInt = global.parseInt,
-      $parseFloat = global.parseFloat;
-
-  var E = Math.E,
-      LOG10E = Math.LOG10E,
-      LOG2E = Math.LOG2E,
-      abs = Math.abs,
-      ceil = Math.ceil,
-      exp = Math.exp,
-      floor = Math.floor,
-      log = Math.log,
-      max = Math.max,
-      min = Math.min,
-      pow = Math.pow,
-      random = Math.random,
-      sqrt = Math.sqrt;
+// abstract method.  to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+Readable.prototype._read = function (n) {
+  this.emit('error', new Error('_read() is not implemented'));
+};
 
-  var orig_match = String.prototype.match,
-      orig_replace = String.prototype.replace,
-      orig_search = String.prototype.search,
-      orig_split = String.prototype.split;
+Readable.prototype.pipe = function (dest, pipeOpts) {
+  var src = this;
+  var state = this._readableState;
 
-  // These are used for implementing the polyfills, but not exported.
+  switch (state.pipesCount) {
+    case 0:
+      state.pipes = dest;
+      break;
+    case 1:
+      state.pipes = [state.pipes, dest];
+      break;
+    default:
+      state.pipes.push(dest);
+      break;
+  }
+  state.pipesCount += 1;
+  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
 
-  // Inspired by https://gist.github.com/1638059
-  /** @constructor */
-  function EphemeronTable() {
-    var secretKey = ObjectCreate(null);
+  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
 
-    function conceal(o) {
-      var oValueOf = o.valueOf, secrets = ObjectCreate(null);
-      Object.defineProperty(o, 'valueOf', {
-          value: (function(secretKey) {
-            return function (k) {
-              return (k === secretKey) ? secrets : oValueOf.apply(o, arguments);
-            };
-          }(secretKey)),
-        configurable: true,
-        writeable: true,
-        enumerable: false
-        });
-      return secrets;
-    }
+  var endFn = doEnd ? onend : cleanup;
+  if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
 
-    function reveal(o) {
-      var v = typeof o.valueOf === 'function' && o.valueOf(secretKey);
-      return v === o ? null : v;
+  dest.on('unpipe', onunpipe);
+  function onunpipe(readable) {
+    debug('onunpipe');
+    if (readable === src) {
+      cleanup();
     }
-
-    return {
-      clear: function() {
-        secretKey = ObjectCreate(null);
-      },
-      remove: function(key) {
-        var secrets = reveal(key);
-        if (secrets && HasOwnProperty(secrets, 'value')) {
-          delete secrets.value;
-          return true;
-        }
-        return false;
-      },
-      get: function(key, defaultValue) {
-        var secrets = reveal(key);
-        return (secrets && HasOwnProperty(secrets, 'value')) ? secrets.value : defaultValue;
-      },
-      has: function(key) {
-        var secrets = reveal(key);
-        return Boolean(secrets && HasOwnProperty(secrets, 'value'));
-      },
-      set: function(key, value) {
-        var secrets = reveal(key) || conceal(key);
-        secrets.value = value;
-      }
-    };
   }
 
-  var empty = Object.create(null);
-
-  //----------------------------------------------------------------------
-  //
-  // ECMAScript 2015
-  // http://www.ecma-international.org/ecma-262/6.0/
-  //
-  //----------------------------------------------------------------------
-
-  // ---------------------------------------
-  // 19.4 Symbol Objects
-  // ---------------------------------------
+  function onend() {
+    debug('onend');
+    dest.end();
+  }
 
-  // NOTE: Symbols are defined here - out of spec order - since we need the
-  // properties and prototype to be populated for other polyfills.
+  // when the dest drains, it reduces the awaitDrain counter
+  // on the source.  This would be more elegant with a .once()
+  // handler in flow(), but adding and removing repeatedly is
+  // too slow.
+  var ondrain = pipeOnDrain(src);
+  dest.on('drain', ondrain);
 
-  // NOTE: Not secure, nor is obj[$$symbol] hidden from Object.keys()
+  var cleanedUp = false;
+  function cleanup() {
+    debug('cleanup');
+    // cleanup event handlers once the pipe is broken
+    dest.removeListener('close', onclose);
+    dest.removeListener('finish', onfinish);
+    dest.removeListener('drain', ondrain);
+    dest.removeListener('error', onerror);
+    dest.removeListener('unpipe', onunpipe);
+    src.removeListener('end', onend);
+    src.removeListener('end', cleanup);
+    src.removeListener('data', ondata);
 
-  var symbolForKey;
-  (function() {
-    var secret = Object.create(null);
-    var symbolMap = {};
-    symbolForKey = function(k) {
-      return symbolMap[k];
-    };
+    cleanedUp = true;
 
-    var GlobalSymbolRegistry = [];
+    // if the reader is waiting for a drain event from this
+    // specific writer, then it would cause it to never start
+    // flowing again.
+    // So, if this is awaiting a drain, then we just call it now.
+    // If we don't know, then assume that we are waiting for one.
+    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+  }
 
-    function unique(bits) {
-      return Array(bits + 1).join('x').replace(/x/g, function() {
-        return random() < 0.5 ? '\u200C' : '\u200D'; // JWNJ / ZWJ
-      });
+  // If the user pushes more data while we're writing to dest then we'll end up
+  // in ondata again. However, we only want to increase awaitDrain once because
+  // dest will only emit one 'drain' event for the multiple writes.
+  // => Introduce a guard on increasing awaitDrain.
+  var increasedAwaitDrain = false;
+  src.on('data', ondata);
+  function ondata(chunk) {
+    debug('ondata');
+    increasedAwaitDrain = false;
+    var ret = dest.write(chunk);
+    if (false === ret && !increasedAwaitDrain) {
+      // If the user unpiped during `dest.write()`, it is possible
+      // to get stuck in a permanently paused state if that write
+      // also returned false.
+      // => Check whether `dest` is still a piping destination.
+      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+        debug('false write response, pause', src._readableState.awaitDrain);
+        src._readableState.awaitDrain++;
+        increasedAwaitDrain = true;
+      }
+      src.pause();
     }
+  }
 
-    // 19.4.1 The Symbol Constructor
-    // 19.4.1.1 Symbol ( description=undefined )
-    function Symbol(description) {
-      if (!(this instanceof Symbol)) return new Symbol(description, secret);
-      if (this instanceof Symbol && arguments[1] !== secret) throw TypeError();
-
-      var descString = description === undefined ? undefined : String(description);
+  // if the dest has an error, then stop piping into it.
+  // however, don't suppress the throwing behavior for this.
+  function onerror(er) {
+    debug('onerror', er);
+    unpipe();
+    dest.removeListener('error', onerror);
+    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
+  }
 
-      set_internal(this, '[[SymbolData]]', unique(128));
-      set_internal(this, '[[Description]]', descString);
+  // Make sure our error handler is attached before userland ones.
+  prependListener(dest, 'error', onerror);
 
-      symbolMap[this] = this;
-      return this;
-    }
+  // Both close and finish should trigger unpipe, but only once.
+  function onclose() {
+    dest.removeListener('finish', onfinish);
+    unpipe();
+  }
+  dest.once('close', onclose);
+  function onfinish() {
+    debug('onfinish');
+    dest.removeListener('close', onclose);
+    unpipe();
+  }
+  dest.once('finish', onfinish);
 
-    if (!('Symbol' in global) || OVERRIDE_NATIVE_FOR_TESTING)
-      global.Symbol = Symbol;
+  function unpipe() {
+    debug('unpipe');
+    src.unpipe(dest);
+  }
 
-    // 19.4.2 Properties of the Symbol Constructor
+  // tell the dest that it's being piped to
+  dest.emit('pipe', src);
 
-    // 19.4.2.1 Symbol.for (key)
-    define(Symbol, 'for', function for_(key) {
-      var stringKey = String(key);
-      for (var i = 0; i < GlobalSymbolRegistry.length; ++i) {
-        var e = GlobalSymbolRegistry[i];
-        if (SameValue(e['[[key]]'], stringKey)) return e['[[symbol]]'];
-      }
-      var newSymbol = Symbol(key);
-      GlobalSymbolRegistry.push({'[[key]]': stringKey, '[[symbol]]': newSymbol});
-      return newSymbol;
-    });
+  // start the flow if it hasn't been started already.
+  if (!state.flowing) {
+    debug('pipe resume');
+    src.resume();
+  }
 
-    // 19.4.2.2 Symbol.hasInstance
-    // 19.4.2.3 Symbol.isConcatSpreadable
+  return dest;
+};
 
-    // 19.4.2.4 Symbol.iterator
-    define(global.Symbol, 'iterator', global.Symbol('Symbol.iterator'));
+function pipeOnDrain(src) {
+  return function () {
+    var state = src._readableState;
+    debug('pipeOnDrain', state.awaitDrain);
+    if (state.awaitDrain) state.awaitDrain--;
+    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+      state.flowing = true;
+      flow(src);
+    }
+  };
+}
 
-    // 19.4.2.5 Symbol.keyFor (sym)
-    define(Symbol, 'keyFor', function keyFor(sym) {
-      if (!(sym instanceof Symbol)) throw TypeError();
-      for (var i = 0; i < GlobalSymbolRegistry.length; ++i) {
-        var e = GlobalSymbolRegistry[i];
-        if (SameValue(e['[[symbol]]'], sym)) return e['[[key]]'];
-      }
-      return undefined;
-    });
+Readable.prototype.unpipe = function (dest) {
+  var state = this._readableState;
 
-    // 19.4.2.6 Symbol.match
-    define(global.Symbol, 'match', global.Symbol('Symbol.match'));
+  // if we're not piping anywhere, then do nothing.
+  if (state.pipesCount === 0) return this;
 
-    // 19.4.2.7 Symbol.prototype
+  // just one destination.  most common case.
+  if (state.pipesCount === 1) {
+    // passed in one, but it's not the right one.
+    if (dest && dest !== state.pipes) return this;
 
-    // 19.4.2.8 Symbol.replace
-    define(global.Symbol, 'replace', global.Symbol('Symbol.replace'));
+    if (!dest) dest = state.pipes;
 
-    // 19.4.2.9 Symbol.search
-    define(global.Symbol, 'search', global.Symbol('Symbol.search'));
+    // got a match.
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
+    if (dest) dest.emit('unpipe', this);
+    return this;
+  }
 
-    // 19.4.2.10 Symbol.species
+  // slow case. multiple pipe destinations.
 
-    // 19.4.2.11 Symbol.search
-    define(global.Symbol, 'split', global.Symbol('Symbol.split'));
+  if (!dest) {
+    // remove all.
+    var dests = state.pipes;
+    var len = state.pipesCount;
+    state.pipes = null;
+    state.pipesCount = 0;
+    state.flowing = false;
 
-    // 19.4.2.12 Symbol.toPrimitive
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this);
+    }return this;
+  }
 
-    // 19.4.2.13 Symbol.toStringTag
-    define(global.Symbol, 'toStringTag', global.Symbol('Symbol.toStringTag'));
+  // try to find the right one.
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
 
-    // 19.4.2.14 Symbol.unscopables
+  state.pipes.splice(index, 1);
+  state.pipesCount -= 1;
+  if (state.pipesCount === 1) state.pipes = state.pipes[0];
 
-    // 19.4.3 Properties of the Symbol Prototype Object
-    // 19.4.3.1 Symbol.prototype.constructor
+  dest.emit('unpipe', this);
 
-    // 19.4.3.2 Symbol.prototype.toString ( )
-    Object.defineProperty(Symbol.prototype, 'toString', {
-      value: function toString() {
-        var s = strict(this);
-        var desc = s['[[Description]]'];
-        return 'Symbol(' + (desc === undefined ? '' : desc) + s['[[SymbolData]]'] + ')';
-      },
-      configurable: true, writeable: true, enumerable: false });
+  return this;
+};
 
-    // 19.4.3.3 Symbol.prototype.valueOf ( )
-    Object.defineProperty(Symbol.prototype, 'valueOf', {
-      value: function valueOf() {
-        // To prevent automatic string conversion:
-        throw TypeError();
+// set up data events if they are asked for
+// Ensure readable listeners eventually get something
+Readable.prototype.on = function (ev, fn) {
+  var res = Stream.prototype.on.call(this, ev, fn);
 
-        // Spec has approximately the following:
-        //var s = strict(this);
-        //if (Type(s) === 'symbol') return s;
-        //if (Type(s) !== 'object') throw TypeError();
-        //if (!('[[SymbolData]]' in s)) throw TypeError();
-        //return s['[[SymbolData]]'];
-      },
-      configurable: true, writeable: true, enumerable: false });
+  if (ev === 'data') {
+    // Start flowing on next tick if stream isn't explicitly paused
+    if (this._readableState.flowing !== false) this.resume();
+  } else if (ev === 'readable') {
+    var state = this._readableState;
+    if (!state.endEmitted && !state.readableListening) {
+      state.readableListening = state.needReadable = true;
+      state.emittedReadable = false;
+      if (!state.reading) {
+        processNextTick(nReadingNextTick, this);
+      } else if (state.length) {
+        emitReadable(this, state);
+      }
+    }
+  }
 
-    // 19.4.3.4 Symbol.prototype [ @@toStringTag ]
-    // (Done later to polyfill partial implementations)
+  return res;
+};
+Readable.prototype.addListener = Readable.prototype.on;
 
-    // 19.4.4 Properties of Symbol Instances
-  }());
+function nReadingNextTick(self) {
+  debug('readable nexttick read 0');
+  self.read(0);
+}
 
-  console.assert(typeof global.Symbol() === 'symbol' || symbolForKey(String(global.Symbol('x'))));
+// pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+Readable.prototype.resume = function () {
+  var state = this._readableState;
+  if (!state.flowing) {
+    debug('resume');
+    state.flowing = true;
+    resume(this, state);
+  }
+  return this;
+};
 
-  // Defined here so that other prototypes can reference it
-  // 25.1.2 The %IteratorPrototype% Object
-  var $IteratorPrototype$ = {};
+function resume(stream, state) {
+  if (!state.resumeScheduled) {
+    state.resumeScheduled = true;
+    processNextTick(resume_, stream, state);
+  }
+}
 
-  //----------------------------------------
-  // 6 ECMAScript Data Types and Values
-  //----------------------------------------
+function resume_(stream, state) {
+  if (!state.reading) {
+    debug('resume read 0');
+    stream.read(0);
+  }
 
-  // 6.1 ECMAScript Language Types
+  state.resumeScheduled = false;
+  state.awaitDrain = 0;
+  stream.emit('resume');
+  flow(stream);
+  if (state.flowing && !state.reading) stream.read(0);
+}
 
-  // "Type(x)" is used as shorthand for "the type of x"...
-  function Type(v) {
-    switch (typeof v) {
-    case 'undefined': return 'undefined';
-    case 'boolean': return 'boolean';
-    case 'number': return 'number';
-    case 'string': return 'string';
-    case 'symbol': return 'symbol';
-    default:
-      if (v === null) return 'null';
-      if (v instanceof global.Symbol) return 'symbol';
-      return 'object';
-    }
+Readable.prototype.pause = function () {
+  debug('call pause flowing=%j', this._readableState.flowing);
+  if (false !== this._readableState.flowing) {
+    debug('pause');
+    this._readableState.flowing = false;
+    this.emit('pause');
   }
+  return this;
+};
 
-  // 6.1.5.1 Well-Known Symbols
-  var $$iterator = global.Symbol.iterator,
-      $$match = global.Symbol.match,
-      $$replace = global.Symbol.replace,
-      $$search = global.Symbol.search,
-      $$split = global.Symbol.split,
-      $$toStringTag = global.Symbol.toStringTag;
+function flow(stream) {
+  var state = stream._readableState;
+  debug('flow', state.flowing);
+  while (state.flowing && stream.read() !== null) {}
+}
 
-  //----------------------------------------
-  // 7 Abstract Operations
-  //----------------------------------------
+// wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+Readable.prototype.wrap = function (stream) {
+  var state = this._readableState;
+  var paused = false;
 
-  //----------------------------------------
-  // 7.1 Type Conversion
-  //----------------------------------------
+  var self = this;
+  stream.on('end', function () {
+    debug('wrapped end');
+    if (state.decoder && !state.ended) {
+      var chunk = state.decoder.end();
+      if (chunk && chunk.length) self.push(chunk);
+    }
 
-  // 7.1.1 ToPrimitive ( input [, PreferredType] )
-  // just use valueOf()
+    self.push(null);
+  });
 
-  // 7.1.2 ToBoolean ( argument )
-  // just use Boolean()
+  stream.on('data', function (chunk) {
+    debug('wrapped data');
+    if (state.decoder) chunk = state.decoder.write(chunk);
 
-  // 7.1.3 ToNumber ( argument )
-  // just use Number()
+    // don't skip over falsy values in objectMode
+    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
 
-  // 7.1.4 ToInteger ( argument )
-  function ToInteger(n) {
-    n = Number(n);
-    if ($isNaN(n)) return 0;
-    if (n === 0 || n === Infinity || n === -Infinity) return n;
-    return ((n < 0) ? -1 : 1) * floor(abs(n));
+    var ret = self.push(chunk);
+    if (!ret) {
+      paused = true;
+      stream.pause();
+    }
+  });
+
+  // proxy all the other methods.
+  // important when wrapping filters and duplexes.
+  for (var i in stream) {
+    if (this[i] === undefined && typeof stream[i] === 'function') {
+      this[i] = function (method) {
+        return function () {
+          return stream[method].apply(stream, arguments);
+        };
+      }(i);
+    }
   }
 
-  // 7.1.5 ToInt32 ( argument )
-  function ToInt32(v) { return v >> 0; }
-
-  // 7.1.6 ToUint32 ( argument )
-  function ToUint32(v) { return v >>> 0; }
+  // proxy certain important events.
+  for (var n = 0; n < kProxyEvents.length; n++) {
+    stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n]));
+  }
 
-  // 7.1.7 ToInt16 ( argument )
-  function ToInt16(v) { return (v << 16) >> 16; }
+  // when we try to consume some more bytes, simply unpause the
+  // underlying stream.
+  self._read = function (n) {
+    debug('wrapped _read', n);
+    if (paused) {
+      paused = false;
+      stream.resume();
+    }
+  };
 
-  // 7.1.8 ToUint16 ( argument )
-  function ToUint16(v) { return v & 0xFFFF; }
+  return self;
+};
 
-  // 7.1.9 ToInt8 ( argument )
-  function ToInt8(v) { return (v << 24) >> 24; }
+// exposed for testing purposes only.
+Readable._fromList = fromList;
 
-  // 7.1.10 ToUint8 ( argument )
-  function ToUint8(v) { return v & 0xFF; }
+// Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromList(n, state) {
+  // nothing buffered
+  if (state.length === 0) return null;
 
-  // 7.1.11 ToUint8Clamp ( argument )
-  function ToUint8Clamp(argument) {
-    var number = Number(argument);
-    if ($isNaN(number)) return 0;
-    if (number <= 0) return 0;
-    if (number >= 255) return 255;
-    var f = floor(number);
-    if ((f + 0.5) < number) return f + 1;
-    if (number < (f + 0.5)) return f;
-    if (f % 2) return f + 1;
-    return f;
+  var ret;
+  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+    // read it all, truncate the list
+    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
+    state.buffer.clear();
+  } else {
+    // read part of list
+    ret = fromListPartial(n, state.buffer, state.decoder);
   }
 
-  // 7.1.12 ToString ( argument )
-  // just use String()
+  return ret;
+}
 
-  // 7.1.13 ToObject ( argument )
-  function ToObject(v) {
-    if (v === null || v === undefined) throw TypeError();
-    return Object(v);
+// Extracts only enough buffered data to satisfy the amount requested.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function fromListPartial(n, list, hasStrings) {
+  var ret;
+  if (n < list.head.data.length) {
+    // slice is the same for buffers and strings
+    ret = list.head.data.slice(0, n);
+    list.head.data = list.head.data.slice(n);
+  } else if (n === list.head.data.length) {
+    // first chunk is a perfect match
+    ret = list.shift();
+  } else {
+    // result spans more than one buffer
+    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
   }
+  return ret;
+}
 
-  // 7.1.14 ToPropertyKey ( argument )
-  function ToPropertyKey(v) {
-    return String(v);
+// Copies a specified amount of characters from the list of buffered data
+// chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBufferString(n, list) {
+  var p = list.head;
+  var c = 1;
+  var ret = p.data;
+  n -= ret.length;
+  while (p = p.next) {
+    var str = p.data;
+    var nb = n > str.length ? str.length : n;
+    if (nb === str.length) ret += str;else ret += str.slice(0, n);
+    n -= nb;
+    if (n === 0) {
+      if (nb === str.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = str.slice(nb);
+      }
+      break;
+    }
+    ++c;
   }
+  list.length -= c;
+  return ret;
+}
 
-  // 7.1.15 ToLength ( argument )
-  function ToLength(v) {
-    var len = ToInteger(v);
-    if (len <= 0) return 0;
-    if (len === Infinity) return 0x20000000000000 - 1; // 2^53-1
-    return min(len, 0x20000000000000 - 1); // 2^53-1
+// Copies a specified amount of bytes from the list of buffered data chunks.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+function copyFromBuffer(n, list) {
+  var ret = bufferShim.allocUnsafe(n);
+  var p = list.head;
+  var c = 1;
+  p.data.copy(ret);
+  n -= p.data.length;
+  while (p = p.next) {
+    var buf = p.data;
+    var nb = n > buf.length ? buf.length : n;
+    buf.copy(ret, ret.length - n, 0, nb);
+    n -= nb;
+    if (n === 0) {
+      if (nb === buf.length) {
+        ++c;
+        if (p.next) list.head = p.next;else list.head = list.tail = null;
+      } else {
+        list.head = p;
+        p.data = buf.slice(nb);
+      }
+      break;
+    }
+    ++c;
   }
+  list.length -= c;
+  return ret;
+}
 
-  // 7.1.16 CanonicalNumericIndexString ( argument )
-
-  //----------------------------------------
-  // 7.2 Testing and Comparison Operations
-  //----------------------------------------
+function endReadable(stream) {
+  var state = stream._readableState;
 
-  // 7.2.1 RequireObjectCoercible ( argument )
-  // 7.2.2 IsArray ( argument )
+  // If we get here before consuming all the bytes, then that is a
+  // bug in node.  Should never happen.
+  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
 
-  // 7.2.3 IsCallable ( argument )
-  function IsCallable(o) { return typeof o === 'function'; }
+  if (!state.endEmitted) {
+    state.ended = true;
+    processNextTick(endReadableNT, state, stream);
+  }
+}
 
-  // 7.2.4 IsConstructor ( argument )
-  function IsConstructor(o) {
-    // Hacks for Safari 7 TypedArray XXXConstructor objects
-    if (/Constructor/.test(Object.prototype.toString.call(o))) return true;
-    if (/Function/.test(Object.prototype.toString.call(o))) return true;
-    // TODO: Can this be improved on?
-    return typeof o === 'function';
+function endReadableNT(state, stream) {
+  // Check that we didn't get one last unshift.
+  if (!state.endEmitted && state.length === 0) {
+    state.endEmitted = true;
+    stream.readable = false;
+    stream.emit('end');
   }
+}
 
-  // 7.2.5 IsExtensible (O)
-  // 7.2.6 IsInteger ( argument )
+function forEach(xs, f) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    f(xs[i], i);
+  }
+}
 
-  // 7.2.7 IsPropertyKey ( argument )
-  function IsPropertyKey(argument) {
-    if (Type(argument) === 'string') return true;
-    if (Type(argument) === 'symbol') return true;
-    return false;
+function indexOf(xs, x) {
+  for (var i = 0, l = xs.length; i < l; i++) {
+    if (xs[i] === x) return i;
   }
+  return -1;
+}
+}).call(this,require('_process'))
+},{"./_stream_duplex":15,"./internal/streams/BufferList":20,"./internal/streams/stream":21,"_process":13,"buffer":5,"buffer-shims":4,"core-util-is":6,"events":7,"inherits":9,"isarray":11,"process-nextick-args":12,"string_decoder/":22,"util":3}],18:[function(require,module,exports){
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
 
-  // 7.2.8 IsRegExp ( argument )
-  // 7.2.5 IsConstructor ( argument )
+'use strict';
 
-  // 7.2.9 SameValue(x, y)
-  function SameValue(x, y) {
-    if (typeof x !== typeof y) return false;
-    switch (typeof x) {
-    case 'undefined':
-      return true;
-    case 'number':
-      if (x !== x && y !== y) return true;
-      if (x === 0 && y === 0) return 1/x === 1/y;
-      return x === y;
-    case 'boolean':
-    case 'string':
-    case 'object':
-    default:
-      return x === y;
-    }
-  }
+module.exports = Transform;
 
-  // 7.2.10 SameValueZero(x, y)
-  function SameValueZero(x, y) {
-    if (typeof x !== typeof y) return false;
-    switch (typeof x) {
-    case 'undefined':
-      return true;
-    case 'number':
-      if (x !== x && y !== y) return true;
-      return x === y;
-    case 'boolean':
-    case 'string':
-    case 'object':
-    default:
-      return x === y;
-    }
-  }
+var Duplex = require('./_stream_duplex');
 
-  //----------------------------------------
-  // 7.3 Operations on Objects
-  //----------------------------------------
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-  // 7.3.1 Get (O, P)
-  // - just use o.p or o[p]
+util.inherits(Transform, Duplex);
 
-  // 7.3.2 GetV (V, P)
-  function GetV(v, p) {
-    var o = ToObject(v);
-    return o[p];
-  }
+function TransformState(stream) {
+  this.afterTransform = function (er, data) {
+    return afterTransform(stream, er, data);
+  };
 
-  // 7.3.3 Set (O, P, V, Throw)
-  // - just use o.p = v or o[p] = v
+  this.needTransform = false;
+  this.transforming = false;
+  this.writecb = null;
+  this.writechunk = null;
+  this.writeencoding = null;
+}
 
+function afterTransform(stream, er, data) {
+  var ts = stream._transformState;
+  ts.transforming = false;
 
+  var cb = ts.writecb;
 
+  if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
 
-  // 7.3.9 GetMethod (O, P)
-  function GetMethod(o, p) {
-    var func = GetV(o, p);
-    if (func === undefined || func === null) return undefined;
-    if (!IsCallable(func)) throw TypeError();
-    return func;
-  }
+  ts.writechunk = null;
+  ts.writecb = null;
 
-  // 7.3.10 HasProperty (O, P)
-  function HasProperty(o, p) {
-    while (o) {
-      if (Object.prototype.hasOwnProperty.call(o, p)) return true;
-      if (Type(o) !== 'object') return false;
-      o = Object.getPrototypeOf(o);
-    }
-    return false;
-  }
+  if (data !== null && data !== undefined) stream.push(data);
 
-  // 7.3.11 HasOwnProperty (O, P)
-  function HasOwnProperty(o, p) {
-    return Object.prototype.hasOwnProperty.call(o, p);
+  cb(er);
+
+  var rs = stream._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    stream._read(rs.highWaterMark);
   }
+}
 
-  //----------------------------------------
-  // 7.4 Operations on Iterator Objects
-  //----------------------------------------
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
 
-  // 7.4.1 GetIterator ( obj, method )
-  function GetIterator(obj, method) {
-    if (arguments.length < 2)
-      method = GetMethod(obj, $$iterator);
-    var iterator = method.call(obj);
-    if (Type(iterator) !== 'object') throw TypeError();
-    return iterator;
-  }
+  Duplex.call(this, options);
 
-  // 7.4.2 IteratorNext ( iterator, value )
-  function IteratorNext(iterator, value) {
-    if (arguments.length < 2)
-      var result = iterator.next();
-    else
-      result = iterator.next(value);
-    if (Type(result) !== 'object') throw TypeError();
-    return result;
-  }
+  this._transformState = new TransformState(this);
 
-  // 7.4.3 IteratorComplete ( iterResult )
-  function IteratorComplete(iterResult) {
-    console.assert(Type(iterResult) === 'object');
-    return Boolean(iterResult.done);
-  }
+  var stream = this;
 
-  // 7.4.4 IteratorValue ( iterResult )
-  function IteratorValue(iterResult) {
-    console.assert(Type(iterResult) === 'object');
-    return iterResult.value;
-  }
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
 
-  // 7.4.5 IteratorStep ( iterator )
-  function IteratorStep( iterator, value ) {
-    var result = IteratorNext(iterator, value);
-    var done = result['done'];
-    if (Boolean(done) === true) return false;
-    return result;
-  }
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
 
-  // 7.4.6 IteratorClose( iterator, completion )
-  function IteratorClose( iterator, completion ) {
-    console.assert(Type(iterator) === 'object');
-    var _return = GetMethod(iterator, 'return');
-    if (_return === undefined) return completion;
-    try {
-      var innerResult = _return[iterator]();
-    } catch (result) {
-      // TODO: If completion.[[type]] is throw, return completion
-      return result;
-    }
-    if (Type(innerResult) !== 'object') throw TypeError();
-    return completion;
-  }
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
 
-  // 7.4.7 CreateIterResultObject (value, done)
-  function CreateIterResultObject(value, done) {
-    console.assert(Type(done) === 'boolean');
-    var obj = {};
-    obj["value"] = value;
-    obj["done"] = done;
-    return obj;
+    if (typeof options.flush === 'function') this._flush = options.flush;
   }
 
-  // 7.4.8 CreateListIterator (list)
-  // 7.4.8.1 ListIterator next( )
-  // 7.4.9 CreateCompoundIterator ( iterator1, iterator2 )
-  // 7.4.9.1 CompoundIterator next( )
+  // When the writable side finishes, then flush out anything remaining.
+  this.once('prefinish', function () {
+    if (typeof this._flush === 'function') this._flush(function (er, data) {
+      done(stream, er, data);
+    });else done(stream);
+  });
+}
 
-  //----------------------------------------
-  // 8 Executable Code and Execution Contexts
-  //----------------------------------------
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
 
-  //----------------------------------------
-  // 8.4 Jobs and Job Queues
-  //----------------------------------------
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('_transform() is not implemented');
+};
 
-  // 8.4.1 EnqueueJob ( queueName, job, arguments)
-  function EnqueueJob(queueName, job, args) {
-    var fn = function() { job.apply(undefined, args); };
-    enqueue(fn);
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
   }
+};
 
-  // 8.4.2 NextJob result
-  function NextJob(result) {
-    // no-op
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
   }
+};
 
-  //----------------------------------------
-  // 9 Ordinary and Exotic Objects Behaviors
-  //----------------------------------------
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
 
-  // 9.1.11 [[Enumerate]] ()
-  function Enumerate(obj) {
-    var e = [];
-    if (Object(obj) !== obj) return e;
-    var visited = new Set;
-    while (obj !== null) {
-      Object.getOwnPropertyNames(obj).forEach(function(name) {
-        if (!visited.has(name)) {
-          var desc = Object.getOwnPropertyDescriptor(obj, name);
-          if (desc) {
-            visited.add(name);
-            if (desc.enumerable) e.push(name);
-          }
-        }
-      });
-      obj = Object.getPrototypeOf(obj);
-    }
-    return e[$$iterator]();
-  }
+  if (data !== null && data !== undefined) stream.push(data);
 
-  // 9.1.12 [[OwnPropertyKeys]] ( )
-  function OwnPropertyKeys(o) {
-    return Object.getOwnPropertyNames(o);
-  }
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  var ws = stream._writableState;
+  var ts = stream._transformState;
+
+  if (ws.length) throw new Error('Calling transform done when ws.length != 0');
+
+  if (ts.transforming) throw new Error('Calling transform done when still transforming');
+
+  return stream.push(null);
+}
+},{"./_stream_duplex":15,"core-util-is":6,"inherits":9}],19:[function(require,module,exports){
+(function (process){
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
 
-  // 9.1.13 ObjectCreate(proto, internalSlotsList)
-  function ObjectCreate(proto, internalSlotsList) {
-    return Object.create(proto, internalSlotsList);
-  }
+'use strict';
 
-  // ---------------------------------------
-  // 19 Fundamental Objects
-  // ---------------------------------------
+module.exports = Writable;
 
-  // ---------------------------------------
-  // 19.1 Object Objects
-  // ---------------------------------------
+/*<replacement>*/
+var processNextTick = require('process-nextick-args');
+/*</replacement>*/
 
-  // 19.1.1 The Object Constructor
-  // 19.1.1.1 Object ( [ value ] )
-  // 19.1.2 Properties of the Object Constructor
-  // 19.1.2.1 Object.assign ( target, ...sources )
-  define(
-    Object, 'assign',
-    function assign(target, /*...*/sources) {
-      var to = ToObject(target);
-      if (arguments.length < 2) return to;
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
+/*</replacement>*/
 
-      var sourcesIndex = 1;
-      while (sourcesIndex < arguments.length) {
-        var nextSource = arguments[sourcesIndex++];
-        if (nextSource === undefined || nextSource === null) {
-          var keys = [];
-        } else {
-          var from = ToObject(nextSource);
-          keys = OwnPropertyKeys(from);
-        }
-        for (var keysIndex = 0; keysIndex < keys.length; ++keysIndex) {
-          var nextKey = keys[keysIndex];
-          var desc = Object.getOwnPropertyDescriptor(from, nextKey);
-          if (desc !== undefined && desc.enumerable) {
-            var propValue = from[nextKey];
-            to[nextKey] = propValue;
-          }
-        }
-      }
-      return to;
-    });
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
 
-  // 19.1.2.2 Object.create ( O [ , Properties ] )
-  // 19.1.2.3 Object.defineProperties ( O, Properties )
-  // 19.1.2.4 Object.defineProperty ( O, P, Attributes )
-  // 19.1.2.5 Object.freeze ( O )
-  // 19.1.2.6 Object.getOwnPropertyDescriptor ( O, P )
+Writable.WritableState = WritableState;
 
-  (function() {
-    var nativeSymbols = (typeof global.Symbol() === 'symbol'),
-        $getOwnPropertyNames = Object.getOwnPropertyNames,
-        $keys = Object.keys,
-        $window_names = (typeof window === 'object' ? $getOwnPropertyNames(window) : []);
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
 
-    function isStringKey(k) { return !symbolForKey(k); }
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
 
-    // 19.1.2.7 Object.getOwnPropertyNames ( O )
-    define(
-      Object, 'getOwnPropertyNames',
-      function getOwnPropertyNames(o) {
-        if (Object.prototype.toString.call(o) === '[object Window]') {
-          // Workaround for cross-realm calling by IE itself.
-          // https://github.com/inexorabletash/polyfill/issues/96
-          try {
-            return $getOwnPropertyNames(o).filter(isStringKey);
-          } catch (_) {
-            return $window_names.slice();
-          }
-        }
-        return $getOwnPropertyNames(o).filter(isStringKey);
-      }, !nativeSymbols);
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
 
-    // 19.1.2.8 Object.getOwnPropertySymbols ( O )
-    define(
-      Object, 'getOwnPropertySymbols',
-      function getOwnPropertySymbols(o) {
-        return $getOwnPropertyNames(o).filter(symbolForKey).map(symbolForKey);
-      }, !nativeSymbols);
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
 
-    // 19.1.2.14 Object.keys ( O )
-    define(
-      Object, 'keys',
-      function keys(o) {
-        return $keys(o).filter(isStringKey);
-      }, !nativeSymbols);
-  }());
+util.inherits(Writable, Stream);
 
-  // 19.1.2.9 Object.getPrototypeOf ( O )
-  // 19.1.2.10 Object.is ( value1, value2 )
-  define(
-    Object, 'is',
-    function is(value1, value2) {
-      return SameValue(value1, value2);
-    });
+function nop() {}
 
-  // 19.1.2.11 Object.isExtensible ( O )
-  // 19.1.2.12 Object.isFrozen ( O )
-  // 19.1.2.13 Object.isSealed ( O )
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
 
-  // 19.1.2.14 Object.keys ( O )
-  // see above
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-  // 19.1.2.15 Object.preventExtensions ( O )
-  // 19.1.2.16 Object.prototype
-  // 19.1.2.17 Object.seal ( O )
+  options = options || {};
 
-  // 19.1.2.18 Object.setPrototypeOf ( O, proto )
-  define(
-    Object, 'setPrototypeOf',
-    function setPrototypeOf(o, proto) {
-      if (Type(o) !== 'object') throw TypeError();
-      if (Type(proto) !== 'object' && Type(proto) !== 'null') throw TypeError();
-      o.__proto__ = proto;
-      return o;
-    }
-  );
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
 
-  // 19.1.3 Properties of the Object Prototype Object
-  // 19.1.3.1 Object.prototype.constructor
-  // 19.1.3.2 Object.prototype.hasOwnProperty ( V )
-  // 19.1.3.3 Object.prototype.isPrototypeOf ( V )
-  // 19.1.3.4 Object.prototype.propertyIsEnumerable ( V )
-  // 19.1.3.5 Object.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
-  // 19.1.3.6 Object.prototype.toString ( )
-  hook(Object.prototype, 'toString',
-       function() {
-         var o = strict(this);
-         if (o === Object(o) && $$toStringTag in o) {
-           return '[object ' + o[$$toStringTag] + ']';
-         }
-         return undefined;
-       });
+  if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
 
-  // 19.1.3.7 Object.prototype.valueOf ( )
-  // 19.1.4 Properties of Object Instances
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+  this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
 
-  // ---------------------------------------
-  // 19.2 Function Objects
-  // ---------------------------------------
+  // cast to ints.
+  this.highWaterMark = ~~this.highWaterMark;
 
-  // 19.2.1 The Function Constructor
-  // 19.2.1.1 Function ( p1, p2, … , pn, body )
-  // 19.2.2 Properties of the Function Constructor
-  // 19.2.2.1 Function.length
-  // 19.2.2.2 Function.prototype
-  // 19.2.3 Properties of the Function Prototype Object
-  // 19.2.3.1 Function.prototype.apply ( thisArg, argArray )
-  // 19.2.3.2 Function.prototype.bind ( thisArg , ...args)
-  // 19.2.3.3 Function.prototype.call (thisArg , ...args)
-  // 19.2.3.4 Function.prototype.constructor
-  // 19.2.3.5 Function.prototype.toString ( )
-  // 19.2.3.6 Function.prototype[@@hasInstance] ( V )
-  // 19.2.4 Function Instances
-  // 19.2.4.1 length
-  // 19.2.4.2 name
-  // 19.2.4.3 prototype
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
 
-  // (No polyfillable changes from ES5)
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
 
-  // ---------------------------------------
-  // 19.3 Boolean Objects
-  // ---------------------------------------
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
 
-  // 19.3.1 The Boolean Constructor
-  // 19.3.1.1 Boolean ( value )
-  // 19.3.2 Properties of the Boolean Constructor
-  // 19.3.2.1 Boolean.prototype
-  // 19.3.3 Properties of the Boolean Prototype Object
-  // 19.3.3.1 Boolean.prototype.constructor
-  // 19.3.3.2 Boolean.prototype.toString ( )
-  // 19.3.3.3 Boolean.prototype.valueOf ( )
-  // 19.3.4 Properties of Boolean Instances
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
 
-  // (No polyfillable changes from ES5)
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
 
-  // ---------------------------------------
-  // 19.4 Symbol Objects
-  // ---------------------------------------
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
 
-  // Moved earlier in this script, so that other polyfills can depend on them.
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
 
-  // 19.4.3.4 Symbol.prototype [ @@toStringTag ]
-  define(global.Symbol.prototype, global.Symbol.toStringTag, 'Symbol');
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
 
-  // ---------------------------------------
-  // 19.5 Error Objects
-  // ---------------------------------------
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
 
-  // 19.5.1 The Error Constructor
-  // 19.5.1.1 Error ( message )
-  // 19.5.1.2 new Error( ...argumentsList )
-  // 19.5.2 Properties of the Error Constructor
-  // 19.5.2.1 Error.prototype
-  // 19.5.3 Properties of the Error Prototype Object
-  // 19.5.3.1 Error.prototype.constructor
-  // 19.5.3.2 Error.prototype.message
-  // 19.5.3.3 Error.prototype.name
-  // 19.5.3.4 Error.prototype.toString ( )
-  // 19.5.4 Properties of Error Instances
-  // 19.5.5 Native Error Types Used in This Standard
-  // 19.5.5.1 EvalError
-  // 19.5.5.2 RangeError
-  // 19.5.5.3 ReferenceError
-  // 19.5.5.4 SyntaxError
-  // 19.5.5.5 TypeError
-  // 19.5.5.6 URIError
-  // 19.5.6 NativeError Object Structure
-  // 19.5.6.1 NativeError Constructors
-  // 19.5.6.1.1 NativeError ( message )
-  // 19.5.6.1.2 new NativeError ( ...argumentsList )
-  // 19.5.6.2 Properties of the NativeError Constructors
-  // 19.5.6.2.1 NativeError.prototype
-  // 19.5.6.3 Properties of the NativeError Prototype Objects
-  // 19.5.6.4 Properties of NativeError Instances
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
 
-  // (No polyfillable changes from ES5)
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
 
-  // ---------------------------------------
-  // 20 Numbers and Dates
-  // ---------------------------------------
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
 
-  // ---------------------------------------
-  // 20.1 Number Objects
-  // ---------------------------------------
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
 
-  // 20.1.1 The Number Constructor
-  // 20.1.1.1 Number ( [ value ] )
-  // 20.1.1.2 new Number ( ...argumentsList )
-  // 20.1.2 Properties of the Number Constructor
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
 
-  // 20.1.2.1 Number.EPSILON
-  define(
-    Number, 'EPSILON',
-    (function () {
-      var next, result;
-      for (next = 1; 1 + next !== 1; next = next / 2)
-        result = next;
-      return result;
-    }()));
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
 
-  // 20.1.2.2 Number.isFinite ( number )
-  define(
-    Number, 'isFinite',
-    function isFinite(number) {
-      if (Type(number) !== 'number') return false;
-      if (number !== number || number === +Infinity || number === -Infinity) return false;
-      return true;
-    });
+  // count buffered requests
+  this.bufferedRequestCount = 0;
 
-  // 20.1.2.3 Number.isInteger ( number )
-  define(
-    Number, 'isInteger',
-    function isInteger(number) {
-      if (Type(number) !== 'number') return false;
-      if (number !== number || number === +Infinity || number === -Infinity) return false;
-      var integer = ToInteger(number);
-      if (integer !== number) return false;
-      return true;
-    });
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
 
-  // 20.1.2.4 Number.isNaN ( number )
-  define(
-    Number, 'isNaN',
-    function isNaN(number) {
-      if (Type(number) !== 'number') return false;
-      if (number !== number) return true;
-      return false;
-    });
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
 
-  // 20.1.2.5 Number.isSafeInteger ( number )
-  define(
-    Number, 'isSafeInteger',
-    function isSafeInteger(number) {
-      if (Type(number) !== 'number') return false;
-      if (number !== number || number === +Infinity || number === -Infinity) return false;
-      var integer = ToInteger(number);
-      if (integer !== number) return false;
-      if (abs(integer) <= (0x20000000000000 - 1)) // 2^53-1
-        return true;
-      return false;
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
     });
+  } catch (_) {}
+})();
 
-  // 20.1.2.6 Number.MAX_SAFE_INTEGER
-  define(
-    Number, 'MAX_SAFE_INTEGER',
-    9007199254740991); // 2^53-1
-
-  // 20.1.2.7 Number.MAX_VALUE
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
 
-  // 20.1.2.8 Number.MIN_SAFE_INTEGER
-  define(
-    Number, 'MIN_SAFE_INTEGER',
-    -9007199254740991); // -2^53+1
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
+}
 
-  // 20.1.2.9 Number.MIN_VALUE
-  // 20.1.2.10 Number.NaN
-  // 20.1.2.11 Number.NEGATIVE_INFINITY
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
 
-  // 20.1.2.12 Number.parseFloat ( string )
-  define(Number, 'parseFloat', $parseFloat);
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
 
-  // 20.1.2.13 Number.parseInt ( string, radix )
-  define(Number, 'parseInt', $parseInt);
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
 
-  // 20.1.2.14 Number.POSITIVE_INFINITY
-  // 20.1.2.15 Number.prototype
+  this._writableState = new WritableState(options, this);
 
-  // 20.1.3 Properties of the Number Prototype Object
-  // 20.1.3.1 Number.prototype.constructor
-  // 20.1.3.2 Number.prototype.toExponential ( fractionDigits )
-  // 20.1.3.3 Number.prototype.toFixed ( fractionDigits )
-  // 20.1.3.4 Number.prototype.toLocaleString( [ reserved1 [ , reserved2 ] ])
-  // 20.1.3.5 Number.prototype.toPrecision ( precision )
-  // 20.1.3.6 Number.prototype.toString ( [ radix ] )
-  // 20.1.3.7 Number.prototype.valueOf ( )
-  // 20.1.4 Properties of Number Instances
+  // legacy.
+  this.writable = true;
 
-  // ---------------------------------------
-  // 20.2 The Math Object
-  // ---------------------------------------
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
 
-  // 20.2.1 Value Properties of the Math Object
-  // 20.2.1.1 Math.E
-  // 20.2.1.2 Math.LN10
-  // 20.2.1.3 Math.LN2
-  // 20.2.1.4 Math.LOG10E
-  // 20.2.1.5 Math.LOG2E
-  // 20.2.1.6 Math.PI
-  // 20.2.1.7 Math.SQRT1_2
-  // 20.2.1.8 Math.SQRT2
+    if (typeof options.writev === 'function') this._writev = options.writev;
+  }
 
-  // 20.2.1.9 Math [ @@toStringTag ]
-  define(Math, $$toStringTag, 'Math');
+  Stream.call(this);
+}
 
-  // 20.2.2 Function Properties of the Math Object
-  // 20.2.2.1 Math.abs ( x )
-  // 20.2.2.2 Math.acos ( x )
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
 
-  // 20.2.2.3 Math.acosh(x)
-  define(
-    Math, 'acosh',
-    function acosh(x) {
-      x = Number(x);
-      return log(x + sqrt(x * x - 1));
-    });
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  processNextTick(cb, er);
+}
 
-  // 20.2.2.4 Math.asin ( x )
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
 
-  // 20.2.2.5 Math.asinh( x )
-  define(
-    Math, 'asinh',
-    function asinh(x) {
-      x = Number(x);
-      if (SameValue(x, -0)) {
-        return x;
-      }
-      var s = sqrt(x * x + 1);
-      return (s === -x) ? log(0) : log(x + s);
-    });
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    processNextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
 
-  // 20.2.2.6 Math.atan ( x )
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = Buffer.isBuffer(chunk);
 
-  // 20.2.2.7 Math.atanh( x )
-  define(
-    Math, 'atanh',
-    function atanh(x) {
-      x = Number(x);
-      return (x === 0) ? x : log((1 + x) / (1 - x)) / 2;
-    });
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
 
-  // 20.2.2.8 Math.atan2 ( y, x )
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
 
-  // 20.2.2.9 Math.cbrt ( x )
-  define(
-    Math, 'cbrt',
-    function cbrt(x) {
-      x = Number(x);
-      if ($isNaN(x/x)) {
-        return x;
-      }
-      var r = pow(abs(x), 1/3);
-      var t = x/r/r;
-      return r + (r * (t-r) / (2*r + t));
-    });
+  if (typeof cb !== 'function') cb = nop;
 
-  // 20.2.2.10 Math.ceil ( x )
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
 
-  // 20.2.2.11 Math.clz32 ( x )
-  define(
-    Math, 'clz32',
-    function clz32(x) {
-      function clz8(x) {
-        return (x & 0xf0) ? (x & 0x80 ? 0 : x & 0x40 ? 1 : x & 0x20 ? 2 : 3) :
-        (x & 0x08 ? 4 : x & 0x04 ? 5 : x & 0x02 ? 6 : x & 0x01 ? 7 : 8);
-      }
-      x = ToUint32(x);
-      return x & 0xff000000 ? clz8(x >> 24) :
-        x & 0xff0000 ? clz8(x >> 16) + 8 :
-        x & 0xff00 ? clz8(x >> 8) + 16 : clz8(x) + 24;
-    });
+  return ret;
+};
 
+Writable.prototype.cork = function () {
+  var state = this._writableState;
 
+  state.corked++;
+};
 
-  // 20.2.2.12 Math.cos ( x )
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
 
-  // 20.2.2.13 Math.cosh ( x )
-  define(
-    Math, 'cosh',
-    function cosh(x) {
-      x = Number(x);
-      return (pow(E, x) + pow(E, -x)) / 2;
-    });
+  if (state.corked) {
+    state.corked--;
 
-  // 20.2.2.14 Math.exp ( x )
+    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
 
-  // 20.2.2.15 Math.expm1 ( x )
-  define(
-    Math, 'expm1',
-    function expm1(x) {
-      x = Number(x);
-      // from: http://www.johndcook.com/cpp_log1p.html
-      if (SameValue(x, -0)) {
-        return -0;
-      } else if (abs(x) < 1e-5) {
-        return x + 0.5 * x * x; // two terms of Taylor expansion
-      } else {
-        return exp(x) - 1;
-      }
-    });
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
 
-  // 20.2.2.16 Math.floor ( x )
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = bufferShim.from(chunk, encoding);
+  }
+  return chunk;
+}
 
-  // 20.2.2.17 Math.fround ( x )
-  define(
-    Math, 'fround',
-    function fround(x) {
-      if ($isNaN(x)) {
-        return NaN;
-      }
-      if (1/x === +Infinity || 1/x === -Infinity || x === +Infinity || x === -Infinity) {
-        return x;
-      }
-      return (new Float32Array([x]))[0];
-    });
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    chunk = decodeChunk(state, chunk, encoding);
+    if (Buffer.isBuffer(chunk)) encoding = 'buffer';
+  }
+  var len = state.objectMode ? 1 : chunk.length;
 
-  // 20.2.2.18 Math.hypot ( value1 [, value2 [ ... ] ] )
-  define(
-    Math, 'hypot',
-    function hypot() {
-      var values = [];
-      var m = 0, sawNaN = false;
-      for (var i = 0; i < arguments.length; ++i) {
-        var n = abs(Number(arguments[i]));
-        if (n === Infinity) return n;
-        if (n !== n) sawNaN = true;
-        if (n > m) m = n;
-        values[i] = n;
-      }
-      if (sawNaN) return NaN;
-      if (m === 0) return +0;
-      var sum = +0;
-      for (i = 0; i < values.length; ++i) {
-        var r = values[i] / m;
-        sum = sum + r * r;
-      }
-      return m * sqrt(sum);
-    });
+  state.length += len;
 
-  // 20.2.2.19 Math.imul ( x, y )
-  define(
-    Math, 'imul',
-    function imul(x, y) {
-      var a = ToUint32(x);
-      var b = ToUint32(y);
-      // (slow but accurate)
-      var ah  = (a >>> 16) & 0xffff;
-      var al = a & 0xffff;
-      var bh  = (b >>> 16) & 0xffff;
-      var bl = b & 0xffff;
-      return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
-    }, ('imul' in Math && Math.imul(1, 0x80000000) === 0) // Safari 7 bug
-  );
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
 
-  // 20.2.2.20 Math.log ( x )
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
 
-  // 20.2.2.21 Math.log1p ( x )
-  define(
-    Math, 'log1p',
-    function log1p(x) {
-      x = Number(x);
-      // from: http://www.johndcook.com/cpp_expm1.html
-      if (x < -1) {
-        return NaN;
-      } else if (SameValue(x, -0)) {
-        return -0;
-      } else if (abs(x) > 1e-4) {
-        return log(1 + x);
-      } else {
-        return (-0.5 * x + 1) * x;
-      }
-    });
+  return ret;
+}
 
-  // 20.2.2.22 Math.log10 ( x )
-  define(
-    Math, 'log10',
-    function log10(x) {
-      x = Number(x);
-      return log(x) * LOG10E;
-    });
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
 
-  // 20.2.2.23 Math.log2 ( x )
-  define(
-    Math, 'log2',
-    function log2(x) {
-      x = Number(x);
-      return log(x) * LOG2E;
-    });
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+  if (sync) processNextTick(cb, er);else cb(er);
 
-  // 20.2.2.24 Math.max ( value1, value2 , ...values )
-  // 20.2.2.25 Math.min ( value1, value2 , ...values )
-  // 20.2.2.26 Math.pow ( x, y )
-  // 20.2.2.27 Math.random ( )
-  // 20.2.2.28 Math.round ( x )
+  stream._writableState.errorEmitted = true;
+  stream.emit('error', er);
+}
 
-  // 20.2.2.29 Math.sign(x)
-  define(
-    Math, 'sign',
-    function sign(x) {
-      x = Number(x);
-      return x < 0 ? -1 : x > 0 ? 1 : x;
-    });
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
 
-  // 20.2.2.30 Math.sin ( x )
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
 
-  // 20.2.2.31 Math.sinh( x )
-  define(
-    Math, 'sinh',
-    function sinh(x) {
-      x = Number(x);
-      return SameValue(x, -0) ? x : (pow(E, x) - pow(E, -x)) / 2;
-    });
+  onwriteStateUpdate(state);
 
-  // 20.2.2.32 Math.sqrt ( x )
-  // 20.2.2.33 Math.tan ( x )
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
 
-  // 20.2.2.34 Math.tanh ( x )
-  define(
-    Math, 'tanh',
-    function tanh(x) {
-      x = Number(x);
-      var n = pow(E, 2 * x) - 1,
-          d = pow(E, 2 * x) + 1;
-      if (SameValue(x, -0))
-        return x;
-      return (n === d) ? 1 : n / d; // Handle Infinity/Infinity
-    });
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
 
-  // 20.2.2.35 Math.trunc ( x )
-  define(
-    Math, 'trunc',
-    function trunc(x) {
-      x = Number(x);
-      return $isNaN(x) ? NaN :
-        x < 0 ? ceil(x) : floor(x);
-    });
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
 
-  // ---------------------------------------
-  // 20.3 Date Objects
-  // ---------------------------------------
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
 
-  // 20.3.1 Overview of Date Objects and Definitions of Abstract Operations
-  // 20.3.1.1 Time Values and Time Range
-  // 20.3.1.2 Day Number and Time within Day
-  // 20.3.1.3 Year Number
-  // 20.3.1.4 Month Number
-  // 20.3.1.5 Date Number
-  // 20.3.1.6 Week Day
-  // 20.3.1.7 Local Time Zone Adjustment
-  // 20.3.1.8 Daylight Saving Time Adjustment
-  // 20.3.1.9 Local Time
-  // 20.3.1.10 Hours, Minutes, Second, and Milliseconds
-  // 20.3.1.11 MakeTime (hour, min, sec, ms)
-  // 20.3.1.12 MakeDay (year, month, date)
-  // 20.3.1.13 MakeDate (day, time)
-  // 20.3.1.14 TimeClip (time)
-  // 20.3.1.15 Date Time String Format
-  // 20.3.1.15.1 Extended years
-  // 20.3.2 The Date Constructor
-  // 20.3.2.1 Date ( year, month [, date [ , hours [ , minutes [ , seconds [ , ms ] ] ] ] ] )
-  // 20.3.2.2 Date ( value )
-  // 20.3.2.3 Date ( )
-  // 20.3.3 Properties of the Date Constructor
-  // 20.3.3.1 Date.now ( )
-  // 20.3.3.2 Date.parse (string)
-  // 20.3.3.3 Date.prototype
-  // 20.3.3.4 Date.UTC ( year, month [ , date [ , hours [ , minutes [ , seconds [ , ms ] ] ] ] ] )
-  // 20.3.4 Properties of the Date Prototype Object
-  // 20.3.4.1 Date.prototype.constructor
-  // 20.3.4.2 Date.prototype.getDate ( )
-  // 20.3.4.3 Date.prototype.getDay ( )
-  // 20.3.4.4 Date.prototype.getFullYear ( )
-  // 20.3.4.5 Date.prototype.getHours ( )
-  // 20.3.4.6 Date.prototype.getMilliseconds ( )
-  // 20.3.4.7 Date.prototype.getMinutes ( )
-  // 20.3.4.8 Date.prototype.getMonth ( )
-  // 20.3.4.9 Date.prototype.getSeconds ( )
-  // 20.3.4.10 Date.prototype.getTime ( )
-  // 20.3.4.11 Date.prototype.getTimezoneOffset ( )
-  // 20.3.4.12 Date.prototype.getUTCDate ( )
-  // 20.3.4.13 Date.prototype.getUTCDay ( )
-  // 20.3.4.14 Date.prototype.getUTCFullYear ( )
-  // 20.3.4.15 Date.prototype.getUTCHours ( )
-  // 20.3.4.16 Date.prototype.getUTCMilliseconds ( )
-  // 20.3.4.17 Date.prototype.getUTCMinutes ( )
-  // 20.3.4.18 Date.prototype.getUTCMonth ( )
-  // 20.3.4.19 Date.prototype.getUTCSeconds ( )
-  // 20.3.4.20 Date.prototype.setDate ( date )
-  // 20.3.4.21 Date.prototype.setFullYear ( year [ , month [ , date ] ] )
-  // 20.3.4.22 Date.prototype.setHours ( hour [ , min [ , sec [ , ms ] ] ] )
-  // 20.3.4.23 Date.prototype.setMilliseconds ( ms )
-  // 20.3.4.24 Date.prototype.setMinutes ( min [ , sec [ , ms ] ] )
-  // 20.3.4.25 Date.prototype.setMonth ( month [ , date ] )
-  // 20.3.4.26 Date.prototype.setSeconds ( sec [ , ms ] )
-  // 20.3.4.27 Date.prototype.setTime ( time )
-  // 20.3.4.28 Date.prototype.setUTCDate ( date )
-  // 20.3.4.29 Date.prototype.setUTCFullYear ( year [ , month [ , date ] ] )
-  // 20.3.4.30 Date.prototype.setUTCHours ( hour [ , min [ , sec [ , ms ] ] ] )
-  // 20.3.4.31 Date.prototype.setUTCMilliseconds ( ms )
-  // 20.3.4.32 Date.prototype.setUTCMinutes ( min [ , sec [, ms ] ] )
-  // 20.3.4.33 Date.prototype.setUTCMonth ( month [ , date ] )
-  // 20.3.4.34 Date.prototype.setUTCSeconds ( sec [ , ms ] )
-  // 20.3.4.35 Date.prototype.toDateString ( )
-  // 20.3.4.36 Date.prototype.toISOString ( )
-  // 20.3.4.37 Date.prototype.toJSON ( key )
-  // 20.3.4.38 Date.prototype.toLocaleDateString ( [ reserved1 [ , reserved2 ] ] )
-  // 20.3.4.39 Date.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
-  // 20.3.4.40 Date.prototype.toLocaleTimeString ( [ reserved1 [ , reserved2 ] ] )
-  // 20.3.4.41 Date.prototype.toString ( )
-  // 20.3.4.42 Date.prototype.toTimeString ( )
-  // 20.3.4.43 Date.prototype.toUTCString ( )
-  // 20.3.4.44 Date.prototype.valueOf ( )
-  // 20.3.4.45 Date.prototype [ @@toPrimitive ] ( hint )
-  // 20.3.5 Properties of Date Instances
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
 
-  // (No polyfillable changes from ES5)
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
 
-  // ---------------------------------------
-  // 21 Text Processing
-  // ---------------------------------------
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
 
-  var string_regexp_dispatch = (function() {
-    var faux = {}, secret = Symbol();
-    faux[Symbol.match] = function() { return secret; };
-    return ("").match(faux) === secret;
-  }());
+    var count = 0;
+    while (entry) {
+      buffer[count] = entry;
+      entry = entry.next;
+      count += 1;
+    }
 
-  // 21.1 String Objects
-  // 21.1.1 The String Constructor
-  // 21.1.1.1 String ( value )
-  // 21.1.2 Properties of the String Constructor
-  // 21.1.2.1 String.fromCharCode ( ...codeUnits )
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
 
-  // 21.1.2.2 String.fromCodePoint ( ...codePoints )
-  define(
-    String, 'fromCodePoint',
-    function fromCodePoint(/*...codePoints*/) {
-      var codePoints = arguments,
-          length = codePoints.length,
-          elements = [],
-          nextIndex = 0;
-      while (nextIndex < length) {
-        var next = codePoints[nextIndex];
-        var nextCP = Number(next);
-        if (!SameValue(nextCP, ToInteger(nextCP)) ||
-            nextCP < 0 || nextCP > 0x10FFFF) {
-          throw RangeError('Invalid code point ' + nextCP);
-        }
-        if (nextCP < 0x10000) {
-          elements.push(String.fromCharCode(nextCP));
-        } else {
-          nextCP -= 0x10000;
-          elements.push(String.fromCharCode((nextCP >> 10) + 0xD800));
-          elements.push(String.fromCharCode((nextCP % 0x400) + 0xDC00));
-        }
-        nextIndex += 1;
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
       }
-      return elements.join('');
-    });
+    }
 
-  // 21.1.2.3 String.prototype
+    if (entry === null) state.lastBufferedRequest = null;
+  }
 
-  // 21.1.2.4 String.raw ( template , ...substitutions )
-  define(
-    String, 'raw',
-    function raw(template /*, ...substitutions*/) {
-      var substitutions = [].slice.call(arguments, 1);
+  state.bufferedRequestCount = 0;
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
 
-      var cooked = Object(template);
-      var rawValue = cooked['raw'];
-      var raw = Object(rawValue);
-      var len = raw['length'];
-      var literalSegments = ToLength(len);
-      if (literalSegments <= 0) return '';
-      var stringElements = [];
-      var nextIndex = 0;
-      while (true) {
-        var next = raw[nextIndex];
-        var nextSeg = String(next);
-        stringElements.push(nextSeg);
-        if (nextIndex + 1 === literalSegments)
-          return stringElements.join('');
-        next = substitutions[nextIndex];
-        var nextSub = String(next);
-        stringElements.push(nextSub);
-        nextIndex = nextIndex + 1;
-      }
-    });
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('_write() is not implemented'));
+};
 
-  // See https://githib.com/inexorabletash/uate for a more useful version.
+Writable.prototype._writev = null;
 
-  // 21.1.3 Properties of the String Prototype Object
-  // 21.1.3.1 String.prototype.charAt ( pos )
-  // 21.1.3.2 String.prototype.charCodeAt ( pos )
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
 
-  // 21.1.3.3 String.prototype.codePointAt ( pos )
-  define(
-    String.prototype, 'codePointAt',
-    function codePointAt(pos) {
-      var o = strict(this);
-      var s = String(o);
-      var position = ToInteger(pos);
-      var size = s.length;
-      if (position < 0 || position >= size) return undefined;
-      var first = s.charCodeAt(position);
-      if (first < 0xD800 || first > 0xDBFF || position + 1 === size) return first;
-      var second = s.charCodeAt(position + 1);
-      if (second < 0xDC00 || second > 0xDFFF) return first;
-      return ((first - 0xD800) * 1024) + (second - 0xDC00) + 0x10000;
-    });
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
 
-  // 21.1.3.4 String.prototype.concat ( ...args )
-  // 21.1.3.5 String.prototype.constructor
+  // ignore unnecessary end() calls.
+  if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
 
-  // 21.1.3.6 String.prototype.endsWith ( searchString [ , endPosition] )
-  define(
-    String.prototype, 'endsWith',
-    function endsWith(searchString) {
-      var endPosition = arguments[1];
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
 
-      var o = strict(this);
-      var s = String(o);
-      var searchStr = String(searchString);
-      var len = s.length;
-      var pos = (endPosition === undefined) ? len : ToInteger(endPosition);
-      var end = min(max(pos, 0), len);
-      var searchLength = searchStr.length;
-      var start = end - searchLength;
-      if (start < 0) return false;
-      if (s.substring(start, start + searchLength) === searchStr) return true;
-      return false;
-    });
+function prefinish(stream, state) {
+  if (!state.prefinished) {
+    state.prefinished = true;
+    stream.emit('prefinish');
+  }
+}
 
-  // 21.1.3.7 String.prototype.includes ( searchString [ , position ] )
-  define(
-    String.prototype, 'includes',
-    function includes(searchString) {
-      var position = arguments[1];
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    if (state.pendingcb === 0) {
+      prefinish(stream, state);
+      state.finished = true;
+      stream.emit('finish');
+    } else {
+      prefinish(stream, state);
+    }
+  }
+  return need;
+}
 
-      var o = strict(this);
-      var s = String(o);
-      var searchStr = String(searchString);
-      var pos = ToInteger(position);
-      var len = s.length;
-      var start = min(max(pos, 0), len);
-      return s.indexOf(searchStr, start) !== -1;
-    });
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) processNextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
 
-  // 21.1.3.8 String.prototype.indexOf ( searchString [ , position ] )
-  // 21.1.3.9 String.prototype.lastIndexOf ( searchString [ , position ] )
-  // 21.1.3.10 String.prototype.localeCompare ( that [, reserved1 [ , reserved2 ] ] )
-  // 21.1.3.11 String.prototype.match ( regexp )
-  define(
-    String.prototype, 'match',
-    function match(regexp) {
-      var o = strict(this);
-      var s = String(o);
-      if (HasProperty(regexp, $$match)) var rx = regexp;
-      else rx = new RegExp(regexp);
-      return rx[$$match](s);
-    }, !string_regexp_dispatch);
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
 
-  // 21.1.3.12 String.prototype.normalize ( [ form ] )
+  this.next = null;
+  this.entry = null;
+  this.finish = function (err) {
+    var entry = _this.entry;
+    _this.entry = null;
+    while (entry) {
+      var cb = entry.callback;
+      state.pendingcb--;
+      cb(err);
+      entry = entry.next;
+    }
+    if (state.corkedRequestsFree) {
+      state.corkedRequestsFree.next = _this;
+    } else {
+      state.corkedRequestsFree = _this;
+    }
+  };
+}
+}).call(this,require('_process'))
+},{"./_stream_duplex":15,"./internal/streams/stream":21,"_process":13,"buffer":5,"buffer-shims":4,"core-util-is":6,"inherits":9,"process-nextick-args":12,"util-deprecate":30}],20:[function(require,module,exports){
+'use strict';
 
-  // Not practical due to table sizes; if needed, pull in:
-  // https://github.com/walling/unorm/
+var Buffer = require('buffer').Buffer;
+/*<replacement>*/
+var bufferShim = require('buffer-shims');
+/*</replacement>*/
 
-  // 21.1.3.13 String.prototype.repeat ( count )
-  define(
-    String.prototype, 'repeat',
-    function repeat(count) {
-      var o = strict(this);
-      var s = String(o);
-      var n = ToInteger(count);
-      if (n < 0) throw RangeError();
-      if (n === Infinity) throw RangeError();
-      var t = new Array(n + 1).join(s);
-      return t;
-    });
+module.exports = BufferList;
 
-  // 21.1.3.14 String.prototype.replace (searchValue, replaceValue )
-  define(
-    String.prototype, 'replace',
-    function replace(searchValue, replaceValue) {
-      var o = strict(this);
-      if (HasProperty(searchValue, $$replace))
-        return searchValue[$$replace](o, replaceValue);
-      return orig_replace.call(o, searchValue, replaceValue);
-    }, !string_regexp_dispatch);
+function BufferList() {
+  this.head = null;
+  this.tail = null;
+  this.length = 0;
+}
 
-  // 21.1.3.15 String.prototype.search ( regexp )
-  define(
-    String.prototype, 'search',
-    function search(regexp) {
-      var o = strict(this);
-      var string = String(o);
-      if (HasProperty(regexp, $$search)) var rx = regexp;
-      else rx = new RegExp(regexp);
-      return rx[$$search](string);
-    }, !string_regexp_dispatch);
+BufferList.prototype.push = function (v) {
+  var entry = { data: v, next: null };
+  if (this.length > 0) this.tail.next = entry;else this.head = entry;
+  this.tail = entry;
+  ++this.length;
+};
 
-  // 21.1.3.16 String.prototype.slice ( start, end )
-  // 21.1.3.17 String.prototype.split ( separator, limit )
-  define(
-    String.prototype, 'split',
-    function split(separator, limit) {
-      var o = strict(this);
-      if (HasProperty(separator, $$split))
-        return separator[$$split](o, limit);
-      return orig_split.call(o, separator, limit);
-    }, !string_regexp_dispatch);
+BufferList.prototype.unshift = function (v) {
+  var entry = { data: v, next: this.head };
+  if (this.length === 0) this.tail = entry;
+  this.head = entry;
+  ++this.length;
+};
 
-  // 21.1.3.18 String.prototype.startsWith ( searchString [, position ] )
-  define(
-    String.prototype, 'startsWith',
-    function startsWith(searchString) {
-      var position = arguments[1];
+BufferList.prototype.shift = function () {
+  if (this.length === 0) return;
+  var ret = this.head.data;
+  if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+  --this.length;
+  return ret;
+};
 
-      var o = strict(this);
-      var s = String(o);
-      var searchStr = String(searchString);
-      var pos = ToInteger(position);
-      var len = s.length;
-      var start = min(max(pos, 0), len);
-      var searchLength = searchStr.length;
-      if (searchLength + start > len) return false;
-      if (s.substring(start, start + searchLength) === searchStr) return true;
-      return false;
-    });
+BufferList.prototype.clear = function () {
+  this.head = this.tail = null;
+  this.length = 0;
+};
 
-  // 21.1.3.19 String.prototype.substring ( start, end )
-  // 21.1.3.20 String.prototype.toLocaleLowerCase ( [ reserved1 [ , reserved2 ] ] )
-  // 21.1.3.21 String.prototype.toLocaleUpperCase ([ reserved1 [ , reserved2 ] ] )
-  // 21.1.3.22 String.prototype.toLowerCase ( )
-  // 21.1.3.23 String.prototype.toString ( )
-  // 21.1.3.24 String.prototype.toUpperCase ( )
-  // 21.1.3.25 String.prototype.trim ( )
-  // 21.1.3.26 String.prototype.valueOf ( )
+BufferList.prototype.join = function (s) {
+  if (this.length === 0) return '';
+  var p = this.head;
+  var ret = '' + p.data;
+  while (p = p.next) {
+    ret += s + p.data;
+  }return ret;
+};
 
-  // 21.1.3.27 String.prototype [ @@iterator ]( )
-  define(
-    String.prototype, $$iterator,
-    function entries() {
-      return CreateStringIterator(this, 'value');
-    });
+BufferList.prototype.concat = function (n) {
+  if (this.length === 0) return bufferShim.alloc(0);
+  if (this.length === 1) return this.head.data;
+  var ret = bufferShim.allocUnsafe(n >>> 0);
+  var p = this.head;
+  var i = 0;
+  while (p) {
+    p.data.copy(ret, i);
+    i += p.data.length;
+    p = p.next;
+  }
+  return ret;
+};
+},{"buffer":5,"buffer-shims":4}],21:[function(require,module,exports){
+module.exports = require('events').EventEmitter;
 
-  // 21.1.4 Properties of String Instances
-  // 21.1.4.1 length
+},{"events":7}],22:[function(require,module,exports){
+'use strict';
 
-  // 21.1.5 String Iterator Objects
-  /** @constructor */
-  function StringIterator() {}
+var Buffer = require('safe-buffer').Buffer;
 
-  // 21.1.5.1 CreateStringIterator Abstract Operation
-  function CreateStringIterator(string, kind) {
-    var s = String(string);
-    var iterator = new StringIterator;
-    set_internal(iterator, '[[IteratedString]]', s);
-    set_internal(iterator, '[[StringIteratorNextIndex]]', 0);
-    set_internal(iterator, '[[StringIterationKind]]', kind);
-    return iterator;
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
   }
+};
 
-  // 21.1.5.2 The %StringIteratorPrototype% Object
-  var $StringIteratorPrototype$ = Object.create($IteratorPrototype$);
-  StringIterator.prototype = $StringIteratorPrototype$;
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
 
-  // 21.1.5.2.1 %StringIteratorPrototype%.next ( )
-  define(
-    $StringIteratorPrototype$, 'next',
-    function next() {
-      var o = ToObject(this);
-      var s = String(o['[[IteratedString]]']),
-          index = o['[[StringIteratorNextIndex]]'],
-          len = s.length;
-      if (index >= len) {
-        set_internal(o, '[[StringIteratorNextIndex]]', Infinity);
-        return CreateIterResultObject(undefined, true);
-      }
-      var cp = s.codePointAt(index);
-      set_internal(o, '[[StringIteratorNextIndex]]', index + (cp > 0xFFFF ? 2 : 1));
-      return CreateIterResultObject(String.fromCodePoint(cp), false);
-    });
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
+}
 
-  // 21.1.5.2.2 %StringIteratorPrototype% [ @@toStringTag ]
-  define($StringIteratorPrototype$, $$toStringTag, 'String Iterator');
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
 
-  // 21.1.5.3 Properties of String Iterator Instances
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
 
-  // ---------------------------------------
-  // 21.2 RegExp (Regular Expression) Objects
-  // ---------------------------------------
+StringDecoder.prototype.end = utf8End;
 
-  // 21.2.1 Patterns
-  // 21.2.2 Pattern Semantics
-  // 21.2.2.1 Notation
-  // 21.2.2.2 Pattern
-  // 21.2.2.3 Disjunction
-  // 21.2.2.4 Alternative
-  // 21.2.2.5 Term
-  // 21.2.2.6 Assertion
-  // 21.2.2.7 Quantifier
-  // 21.2.2.8 Atom
-  // 21.2.2.9 AtomEscape
-  // 21.2.2.10 CharacterEscape
-  // 21.2.2.11 DecimalEscape
-  // 21.2.2.12 CharacterClassEscape
-  // 21.2.2.13 CharacterClass
-  // 21.2.2.14 ClassRanges
-  // 21.2.2.15 NonemptyClassRanges
-  // 21.2.2.16 NonemptyClassRangesNoDash
-  // 21.2.2.17 ClassAtom
-  // 21.2.2.18 ClassAtomNoDash
-  // 21.2.2.19 ClassEscape
-  // 21.2.3 The RegExp Constructor
-  // 21.2.3.1 RegExp ( pattern, flags )
-  // 21.2.3.2 new RegExp( ...argumentsList )
-  // 21.2.3.3 Abstract Operations for the RegExp Constructor
-  // 21.2.4 Properties of the RegExp Constructor
-  // 21.2.4.1 RegExp.prototype
-  // 21.2.5 Properties of the RegExp Prototype Object
-  // 21.2.5.1 RegExp.prototype.constructor
-  // 21.2.5.2 RegExp.prototype.exec ( string )
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
 
-  // 21.2.5.3 get RegExp.prototype.flags
-  if (!('flags' in RegExp.prototype)) {
-    Object.defineProperty(
-      RegExp.prototype, 'flags', {
-        get: function() {
-          var s = String(this);
-          return s.substring(s.lastIndexOf('/') + 1);
-        }
-      });
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
   }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
 
-  // 21.2.5.4 get RegExp.prototype.global
-  // 21.2.5.5 get RegExp.prototype.ignoreCase
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return -1;
+}
 
-  // 21.2.5.6 RegExp.prototype [ @@match ] ( string )
-  define(RegExp.prototype, $$match, function(string) {
-    var o = strict(this);
-    return orig_match.call(string, o);
-  });
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
 
-  // 21.2.5.7 get RegExp.prototype.multiline
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd'.repeat(p);
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd'.repeat(p + 1);
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd'.repeat(p + 2);
+      }
+    }
+  }
+}
 
-  // 21.2.5.8 RegExp.prototype [ @@replace ] ( string, replaceValue )
-  define(RegExp.prototype, $$replace, function(string, replaceValue) {
-    var o = strict(this);
-    return orig_replace.call(string, o, replaceValue);
-  });
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
 
-  // 21.2.5.9 RegExp.prototype [ @@search ] ( string )
-  define(RegExp.prototype, $$search, function(string) {
-    var o = strict(this);
-    return orig_search.call(string, o);
-  });
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
 
-  // 21.2.5.10 get RegExp.prototype.source
+// For UTF-8, a replacement character for each buffered byte of a (partial)
+// character needs to be added to the output.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed);
+  return r;
+}
 
-  // 21.2.5.11 RegExp.prototype [ @@split ] ( string, limit )
-  define(RegExp.prototype, $$split, function(string, limit) {
-    var o = strict(this);
-    return orig_split.call(string, o, limit);
-  });
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
 
-  // 21.2.5.12 get RegExp.prototype.sticky
-  // 21.2.5.13 RegExp.prototype.test( S )
-  // 21.2.5.14 RegExp.prototype.toString ( )
-  // 21.2.5.15 get RegExp.prototype.unicode
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
+}
 
-  // 21.2.6 Properties of RegExp Instances
-  // 21.2.6.1 lastIndex
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
 
-  // (No polyfillable changes from ES5)
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
 
-  // ---------------------------------------
-  // 22 Indexed Collections
-  // ---------------------------------------
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
 
-  // ---------------------------------------
-  // 22.1 Array Objects
-  // ---------------------------------------
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
+},{"safe-buffer":27}],23:[function(require,module,exports){
+module.exports = require('./readable').PassThrough
 
-  // 22.1.1 The Array Constructor
-  // 22.1.1.1 Array ( )
-  // 22.1.1.2 Array (len)
-  // 22.1.1.3 Array (...items )
+},{"./readable":24}],24:[function(require,module,exports){
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
 
-  // 22.1.2 Properties of the Array Constructor
+},{"./lib/_stream_duplex.js":15,"./lib/_stream_passthrough.js":16,"./lib/_stream_readable.js":17,"./lib/_stream_transform.js":18,"./lib/_stream_writable.js":19}],25:[function(require,module,exports){
+module.exports = require('./readable').Transform
 
-  // 22.1.2.1 Array.from ( items [ , mapfn [ , thisArg ] ] )
-  define(
-    Array, 'from',
-    function from(items) {
-      var mapfn = arguments[1];
-      var thisArg = arguments[2];
+},{"./readable":24}],26:[function(require,module,exports){
+module.exports = require('./lib/_stream_writable.js');
 
-      var c = strict(this);
-      if (mapfn === undefined) {
-        var mapping = false;
-      } else {
-        if (!IsCallable(mapfn)) throw TypeError();
-        var t = thisArg;
-        mapping = true;
-      }
-      var usingIterator = GetMethod(items, $$iterator);
-      if (usingIterator !== undefined) {
-         if (IsConstructor(c)) {
-          var a = new c();
-        } else {
-          a = new Array(0);
-        }
-        var iterator = GetIterator(items, usingIterator);
-        var k = 0;
-        while (true) {
-          var next = IteratorStep(iterator);
-          if (next === false) {
-            a.length = k;
-            return a;
-          }
-          var nextValue = IteratorValue(next);
-          if (mapping)
-            var mappedValue = mapfn.call(t, nextValue);
-          else
-            mappedValue = nextValue;
-          a[k] = mappedValue;
-          k += 1;
-        }
-      }
-      var arrayLike = ToObject(items);
-      var lenValue = arrayLike.length;
-      var len = ToLength(lenValue);
-      if (IsConstructor(c)) {
-        a = new c(len);
-      } else {
-        a = new Array(len);
-      }
-      k = 0;
-      while (k < len) {
-        var kValue = arrayLike[k];
-        if (mapping)
-          mappedValue = mapfn.call(t, kValue, k);
-        else
-          mappedValue = kValue;
-        a[k] = mappedValue;
-        k += 1;
-      }
-      a.length = len;
-      return a;
-    });
+},{"./lib/_stream_writable.js":19}],27:[function(require,module,exports){
+module.exports = require('buffer')
+
+},{"buffer":5}],28:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  // 22.1.2.2 Array.isArray ( arg )
+module.exports = Stream;
 
-  // 22.1.2.3 Array.of ( ...items )
-  define(
-    Array, 'of',
-    function of() {
-      var items = arguments;
+var EE = require('events').EventEmitter;
+var inherits = require('inherits');
 
-      var lenValue = items.length;
-      var len = ToUint32(lenValue);
-      var c = strict(this), a;
-      if (IsConstructor(c)) {
-        a = new c(len);
-        a = ToObject(a);
-      } else {
-        a = new Array(len);
-      }
-      var k = 0;
-      while (k < len) {
-        a[k] = items[k];
-        k += 1;
-      }
-      a.length = len;
-      return a;
-    });
+inherits(Stream, EE);
+Stream.Readable = require('readable-stream/readable.js');
+Stream.Writable = require('readable-stream/writable.js');
+Stream.Duplex = require('readable-stream/duplex.js');
+Stream.Transform = require('readable-stream/transform.js');
+Stream.PassThrough = require('readable-stream/passthrough.js');
 
-  // 22.1.2.4 Array.prototype
-  // 22.1.2.5 get Array [ @@species ]
-  // 22.1.3 Properties of the Array Prototype Object
-  // 22.1.3.1 Array.prototype.concat ( ...arguments )
-  // 22.1.3.1.1 Runtime Semantics: IsConcatSpreadable ( O )
-  // 22.1.3.2 Array.prototype.constructor
-  // 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
-  define(
-    Array.prototype, 'copyWithin',
-    function copyWithin(target, start/*, end*/) {
-      var end = arguments[2];
+// Backwards-compat with node 0.4.x
+Stream.Stream = Stream;
 
-      var o = ToObject(this);
-      var lenVal = o.length;
-      var len = ToLength(lenVal);
-      len = max(len, 0);
-      var relativeTarget = ToInteger(target);
-      var to;
-      if (relativeTarget < 0)
-        to = max(len + relativeTarget, 0);
-      else
-        to = min(relativeTarget, len);
-      var relativeStart = ToInteger(start);
-      var from;
-      if (relativeStart < 0)
-        from = max(len + relativeStart, 0);
-      else
-        from = min(relativeStart, len);
-      var relativeEnd;
-      if (end === undefined)
-        relativeEnd = len;
-      else
-        relativeEnd = ToInteger(end);
-      var final;
-      if (relativeEnd < 0)
-        final = max(len + relativeEnd, 0);
-      else
-        final = min(relativeEnd, len);
-      var count = min(final - from, len - to);
-      var direction;
-      if (from < to && to < from + count) {
-        direction = -1;
-        from = from + count - 1;
-        to = to + count - 1;
-      } else {
-        direction = 1;
-      }
-      while (count > 0) {
-        var fromKey = String(from);
-        var toKey = String(to);
-        var fromPresent = HasProperty(o, fromKey);
-        if (fromPresent) {
-          var fromVal = o[fromKey];
-          o[toKey] = fromVal;
-        } else {
-          delete o[toKey];
-        }
-        from = from + direction;
-        to = to + direction;
-        count = count - 1;
-      }
-      return o;
-    });
 
-  // 22.1.3.4 Array.prototype.entries ( )
-  var nativeArrayIteratorMethods =
-        ('entries' in Array.prototype && 'next' in [].entries());
 
-  define(
-    Array.prototype, 'entries',
-    function entries() {
-      return CreateArrayIterator(this, 'key+value');
-    }, !nativeArrayIteratorMethods);
+// old-style streams.  Note that the pipe method (the only relevant
+// part of this class) is overridden in the Readable class.
 
-  // 22.1.3.5 Array.prototype.every ( callbackfn [ , thisArg] )
+function Stream() {
+  EE.call(this);
+}
 
-  // 22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
-  define(
-    Array.prototype, 'fill',
-    function fill(value/*, start, end*/) {
-      var start = arguments[1],
-          end = arguments[2];
+Stream.prototype.pipe = function(dest, options) {
+  var source = this;
 
-      var o = ToObject(this);
-      var lenVal = o.length;
-      var len = ToLength(lenVal);
-      len = max(len, 0);
-      var relativeStart = ToInteger(start);
-      var k;
-      if (relativeStart < 0)
-        k = max((len + relativeStart), 0);
-      else
-        k = min(relativeStart, len);
-      var relativeEnd;
-      if (end === undefined)
-        relativeEnd = len;
-      else
-        relativeEnd = ToInteger(end);
-      var final;
-      if (relativeEnd < 0)
-        final = max((len + relativeEnd), 0);
-      else
-        final = min(relativeEnd, len);
-      while (k < final) {
-        var pk = String(k);
-        o[pk] = value;
-        k += 1;
+  function ondata(chunk) {
+    if (dest.writable) {
+      if (false === dest.write(chunk) && source.pause) {
+        source.pause();
       }
-      return o;
-    });
+    }
+  }
 
-  // 22.1.3.7 Array.prototype.filter ( callbackfn [ , thisArg ] )
+  source.on('data', ondata);
 
-  // 22.1.3.8 Array.prototype.find ( predicate [ , thisArg ] )
-  define(
-    Array.prototype, 'find',
-    function find(predicate) {
-      var o = ToObject(this);
-      var lenValue = o.length;
-      var len = ToInteger(lenValue);
-      if (!IsCallable(predicate)) throw TypeError();
-      var t = arguments.length > 1 ? arguments[1] : undefined;
-      var k = 0;
-      while (k < len) {
-        var pk = String(k);
-        var kPresent = HasProperty(o, pk);
-        if (kPresent) {
-          var kValue = o[pk];
-          var testResult = predicate.call(t, kValue, k, o);
-          if (Boolean(testResult)) {
-            return kValue;
-          }
-        }
-        ++k;
-      }
-      return undefined;
-    });
+  function ondrain() {
+    if (source.readable && source.resume) {
+      source.resume();
+    }
+  }
 
-  // 22.1.3.9 Array.prototype.findIndex ( predicate [ , thisArg ] )
-  define(
-    Array.prototype, 'findIndex',
-    function findIndex(predicate) {
-      var o = ToObject(this);
-      var lenValue = o.length;
-      var len = ToLength(lenValue);
-      if (!IsCallable(predicate)) throw TypeError();
-      var t = arguments.length > 1 ? arguments[1] : undefined;
-      var k = 0;
-      while (k < len) {
-        var pk = String(k);
-        var kPresent = HasProperty(o, pk);
-        if (kPresent) {
-          var kValue = o[pk];
-          var testResult = predicate.call(t, kValue, k, o);
-          if (Boolean(testResult)) {
-            return k;
-          }
-        }
-        ++k;
-      }
-      return -1;
-    });
+  dest.on('drain', ondrain);
 
-  // 22.1.3.10 Array.prototype.forEach ( callbackfn [ , thisArg ] )
-  // 22.1.3.11 Array.prototype.indexOf ( searchElement [ , fromIndex ] )
-  // 22.1.3.12 Array.prototype.join (separator)
+  // If the 'end' option is not supplied, dest.end() will be called when
+  // source gets the 'end' or 'close' events.  Only dest.end() once.
+  if (!dest._isStdio && (!options || options.end !== false)) {
+    source.on('end', onend);
+    source.on('close', onclose);
+  }
 
-  // 22.1.3.13 Array.prototype.keys ( )
-  define(
-    Array.prototype, 'keys',
-    function keys() {
-      return CreateArrayIterator(this, 'key');
-    }, !nativeArrayIteratorMethods);
+  var didOnEnd = false;
+  function onend() {
+    if (didOnEnd) return;
+    didOnEnd = true;
 
-  // 22.1.3.14 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
-  // 22.1.3.15 Array.prototype.map ( callbackfn [ , thisArg ] )
-  // 22.1.3.16 Array.prototype.pop ( )
-  // 22.1.3.17 Array.prototype.push ( ...items )
-  // 22.1.3.18 Array.prototype.reduce ( callbackfn [ , initialValue ] )
-  // 22.1.3.19 Array.prototype.reduceRight ( callbackfn [ , initialValue ] )
-  // 22.1.3.20 Array.prototype.reverse ( )
-  // 22.1.3.21 Array.prototype.shift ( )
-  // 22.1.3.22 Array.prototype.slice (start, end)
-  // 22.1.3.23 Array.prototype.some ( callbackfn [ , thisArg ] )
-  // 22.1.3.24 Array.prototype.sort (comparefn)
-  // 22.1.3.25 Array.prototype.splice (start, deleteCount , ...items )
-  // 22.1.3.26 Array.prototype.toLocaleString ( [ reserved1 [ , reserved2 ] ] )
-  // 22.1.3.27 Array.prototype.toString ( )
-  // 22.1.3.28 Array.prototype.unshift ( ...items )
+    dest.end();
+  }
 
-  // 22.1.3.29 Array.prototype.values ( )
-  define(
-    Array.prototype, 'values',
-    function values() {
-      return CreateArrayIterator(this, 'value');
-    }, !nativeArrayIteratorMethods);
 
-  // 22.1.3.30 Array.prototype [ @@iterator ] ( )
-  define(
-    Array.prototype, $$iterator,
-    Array.prototype.values
-    );
+  function onclose() {
+    if (didOnEnd) return;
+    didOnEnd = true;
 
-  // 22.1.3.31 Array.prototype [ @@unscopables ]
-  // 22.1.4 Properties of Array Instances
-  // 22.1.4.1 length
+    if (typeof dest.destroy === 'function') dest.destroy();
+  }
 
-  // 22.1.5 Array Iterator Objects
-  function ArrayIterator() {}
+  // don't leave dangling pipes when there are errors.
+  function onerror(er) {
+    cleanup();
+    if (EE.listenerCount(this, 'error') === 0) {
+      throw er; // Unhandled stream error in pipe.
+    }
+  }
 
-  // 22.1.5.1 CreateArrayIterator Abstract Operation
-  function CreateArrayIterator(array, kind) {
-    var o = ToObject(array);
-    var iterator = new ArrayIterator;
-    set_internal(iterator, '[[IteratedObject]]', o);
-    set_internal(iterator, '[[ArrayIteratorNextIndex]]', 0);
-    set_internal(iterator, '[[ArrayIterationKind]]', kind);
-    return iterator;
+  source.on('error', onerror);
+  dest.on('error', onerror);
+
+  // remove all the event listeners that were added.
+  function cleanup() {
+    source.removeListener('data', ondata);
+    dest.removeListener('drain', ondrain);
+
+    source.removeListener('end', onend);
+    source.removeListener('close', onclose);
+
+    source.removeListener('error', onerror);
+    dest.removeListener('error', onerror);
+
+    source.removeListener('end', cleanup);
+    source.removeListener('close', cleanup);
+
+    dest.removeListener('close', cleanup);
   }
 
-  // 22.1.5.2 The %ArrayIteratorPrototype% Object
-  var $ArrayIteratorPrototype$ = Object.create($IteratorPrototype$);
-  ArrayIterator.prototype = $ArrayIteratorPrototype$;
+  source.on('end', cleanup);
+  source.on('close', cleanup);
 
-  // 22.1.5.2.1 %ArrayIteratorPrototype%. next( )
-  define(
-    $ArrayIteratorPrototype$, 'next',
-    function next() {
-      var o = strict(this);
-      if (Type(o) !== 'object') throw TypeError();
-      var a = o['[[IteratedObject]]'],
-          index = o['[[ArrayIteratorNextIndex]]'],
-          itemKind = o['[[ArrayIterationKind]]'],
-          lenValue = a.length,
-          len = ToUint32(lenValue),
-          elementKey,
-          elementValue;
-      if (itemKind.indexOf('sparse') !== -1) {
-        var found = false;
-        while (!found && index < len) {
-          elementKey = String(index);
-          found = HasProperty(a, elementKey);
-          if (!found) {
-            index += 1;
-          }
-        }
-      }
-      if (index >= len) {
-        set_internal(o, '[[ArrayIteratorNextIndex]]', Infinity);
-        return CreateIterResultObject(undefined, true);
-      }
-      elementKey = index;
-      set_internal(o, '[[ArrayIteratorNextIndex]]', index + 1);
-      if (itemKind.indexOf('value') !== -1)
-        elementValue = a[elementKey];
-      if (itemKind.indexOf('key+value') !== -1)
-        return CreateIterResultObject([elementKey, elementValue], false);
-      if (itemKind.indexOf('key') !== -1)
-        return CreateIterResultObject(elementKey, false);
-      if (itemKind === 'value')
-        return CreateIterResultObject(elementValue, false);
-      throw Error('Internal error');
-    });
+  dest.on('close', cleanup);
 
-  // 22.1.5.2.2 %ArrayIteratorPrototype% [ @@toStringTag ]
-  define($ArrayIteratorPrototype$, $$toStringTag, 'Array Iterator');
+  dest.emit('pipe', source);
 
-  // 22.1.5.3 Properties of Array Iterator Instances
+  // Allow for unix-like usage: A.pipe(B).pipe(C)
+  return dest;
+};
 
+},{"events":7,"inherits":9,"readable-stream/duplex.js":14,"readable-stream/passthrough.js":23,"readable-stream/readable.js":24,"readable-stream/transform.js":25,"readable-stream/writable.js":26}],29:[function(require,module,exports){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  // ---------------------------------------
-  // 22.2 TypedArray Objects
-  // ---------------------------------------
+var Buffer = require('buffer').Buffer;
 
-  // See typedarray.js for TypedArray polyfill
+var isBufferEncoding = Buffer.isEncoding
+  || function(encoding) {
+       switch (encoding && encoding.toLowerCase()) {
+         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
+         default: return false;
+       }
+     }
 
-  ['Int8Array', 'Uint8Array', 'Uint8ClampedArray',
-   'Int16Array', 'Uint16Array',
-   'Int32Array', 'Uint32Array',
-   'Float32Array', 'Float64Array'].forEach(function ($TypedArrayName$) {
-     if (!($TypedArrayName$ in global))
-       return;
-     var $TypedArray$ = global[$TypedArrayName$];
 
-     // 22.2.1 The %TypedArray% Intrinsic Object
-     // 22.2.1.1 %TypedArray% ( length )
-     // 22.2.1.2 %TypedArray% ( typedArray )
-     // 22.2.1.3 %TypedArray% ( object )
-     // 22.2.1.4 %TypedArray% ( buffer [ , byteOffset [ , length ] ] )
-     // 22.2.1.5 %TypedArray% ( all other argument combinations )
-     // 22.2.2 Properties of the %TypedArray% Intrinsic Object
+function assertEncoding(encoding) {
+  if (encoding && !isBufferEncoding(encoding)) {
+    throw new Error('Unknown encoding: ' + encoding);
+  }
+}
 
-     // 22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
-     define(
-       $TypedArray$, 'from',
-       function from(source) {
-         var mapfn = arguments[1];
-         var thisArg = arguments[2];
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters. CESU-8 is handled as part of the UTF-8 encoding.
+//
+// @TODO Handling all encodings inside a single object makes it very difficult
+// to reason about this code, so it should be split up in the future.
+// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
+// points as used by CESU-8.
+var StringDecoder = exports.StringDecoder = function(encoding) {
+  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
+  assertEncoding(encoding);
+  switch (this.encoding) {
+    case 'utf8':
+      // CESU-8 represents each of Surrogate Pair by 3-bytes
+      this.surrogateSize = 3;
+      break;
+    case 'ucs2':
+    case 'utf16le':
+      // UTF-16 represents each of Surrogate Pair by 2-bytes
+      this.surrogateSize = 2;
+      this.detectIncompleteChar = utf16DetectIncompleteChar;
+      break;
+    case 'base64':
+      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
+      this.surrogateSize = 3;
+      this.detectIncompleteChar = base64DetectIncompleteChar;
+      break;
+    default:
+      this.write = passThroughWrite;
+      return;
+  }
 
-         var c = strict(this);
-         if (!IsConstructor(c)) throw TypeError();
-         if (mapfn === undefined) {
-           var mapping = false;
-         } else {
-           if (IsCallable(mapfn)) throw TypeError();
-           var t = thisArg;
-           mapping = true;
-         }
-         var usingIterator = GetMethod(source, $$iterator);
-         if (usingIterator !== undefined) {
-           var iterator = GetIterator(source, usingIterator);
-           var values = [];
-           var next = true;
-           while (next !== false) {
-             next = IteratorStep(iterator);
-             if (next !== false) {
-               var nextValue = IteratorValue(next);
-               values.push(nextValue);
-             }
-           }
-           var len = values.length;
-           var newObj = new c(len);
-           var k = 0;
-           while (k < len) {
-             var kValue = values.shift();
-             if (mapping) {
-               var mappedValue = mapfn.call(t, kValue);
-             } else {
-               mappedValue = kValue;
-             }
-             newObj[k] = mappedValue;
-             ++k;
-           }
-           console.assert(values.length === 0);
-           return newObj;
-         }
-         var arrayLike = ToObject(source);
-         var lenValue = arrayLike.length;
-         len = ToLength(lenValue);
-         newObj = new c(len);
-         k = 0;
-         while (k < len) {
-           kValue = arrayLike[k];
-           if (mapping) {
-             mappedValue = mapfn.call(t, kValue, k);
-           } else {
-             mappedValue = kValue;
-           }
-           newObj[k] = mappedValue;
-           ++k;
-         }
-         return newObj;
-       });
+  // Enough space to store all bytes of a single character. UTF-8 needs 4
+  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
+  this.charBuffer = new Buffer(6);
+  // Number of bytes received for the current incomplete multi-byte character.
+  this.charReceived = 0;
+  // Number of bytes expected for the current incomplete multi-byte character.
+  this.charLength = 0;
+};
+
+
+// write decodes the given buffer and returns it as JS string that is
+// guaranteed to not contain any partial multi-byte characters. Any partial
+// character found at the end of the buffer is buffered up, and will be
+// returned when calling write again with the remaining bytes.
+//
+// Note: Converting a Buffer containing an orphan surrogate to a String
+// currently works, but converting a String to a Buffer (via `new Buffer`, or
+// Buffer#write) will replace incomplete surrogates with the unicode
+// replacement character. See https://codereview.chromium.org/121173009/ .
+StringDecoder.prototype.write = function(buffer) {
+  var charStr = '';
+  // if our last write ended with an incomplete multibyte character
+  while (this.charLength) {
+    // determine how many remaining bytes this buffer has to offer for this char
+    var available = (buffer.length >= this.charLength - this.charReceived) ?
+        this.charLength - this.charReceived :
+        buffer.length;
 
-     // 22.2.2.2 %TypedArray%.of ( ...items )
-     define(
-       $TypedArray$, 'of',
-       function of() {
-         var items = arguments;
+    // add the new bytes to the char buffer
+    buffer.copy(this.charBuffer, this.charReceived, 0, available);
+    this.charReceived += available;
 
-         var len = items.length;
-         var c = strict(this);
-         var newObj = new c(len);
-         var k = 0;
-         while (k < len) {
-           newObj[k] = items[k];
-           ++k;
-         }
-         return newObj;
-       });
+    if (this.charReceived < this.charLength) {
+      // still not enough chars in this buffer? wait for more ...
+      return '';
+    }
 
-     // 22.2.2.3 %TypedArray%.prototype
-     // 22.2.2.4 get %TypedArray% [ @@species ]
-     // 22.2.3 Properties of the %TypedArrayPrototype% Object
-     // 22.2.3.1 get %TypedArray%.prototype.buffer
-     // 22.2.3.2 get %TypedArray%.prototype.byteLength
-     // 22.2.3.3 get %TypedArray%.prototype.byteOffset
-     // 22.2.3.4 %TypedArray%.prototype.constructor
+    // remove bytes belonging to the current character from the buffer
+    buffer = buffer.slice(available, buffer.length);
 
-     // 22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [, end ] )
-     define($TypedArray$.prototype, 'copyWithin', Array.prototype.copyWithin);
+    // get the character that was split
+    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
 
-     // 22.2.3.6 %TypedArray%.prototype.entries ( )
-     define($TypedArray$.prototype, 'entries', Array.prototype.entries);
+    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+    var charCode = charStr.charCodeAt(charStr.length - 1);
+    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+      this.charLength += this.surrogateSize;
+      charStr = '';
+      continue;
+    }
+    this.charReceived = this.charLength = 0;
 
-     // 22.2.3.7 %TypedArray%.prototype.every ( callbackfn [ , thisArg ] )
-     define($TypedArray$.prototype, 'every', Array.prototype.every);
+    // if there are no more bytes in this buffer, just emit our char
+    if (buffer.length === 0) {
+      return charStr;
+    }
+    break;
+  }
 
-     // 22.2.3.8 %TypedArray%.prototype.fill (value [ , start [ , end ] ] )
-     define(
-       $TypedArray$.prototype, 'fill',
-       //Array.prototype.fill // Doesn't work in Safari 7
-       function fill(value/*, start, end*/) {
-         var start = arguments[1],
-             end = arguments[2];
+  // determine and set charLength / charReceived
+  this.detectIncompleteChar(buffer);
 
-         var o = ToObject(this);
-         var lenVal = o.length;
-         var len = ToLength(lenVal);
-         len = max(len, 0);
-         var relativeStart = ToInteger(start);
-         var k;
-         if (relativeStart < 0) k = max((len + relativeStart), 0);
-         else k = min(relativeStart, len);
-         var relativeEnd;
-         if (end === undefined) relativeEnd = len;
-         else relativeEnd = ToInteger(end);
-         var final;
-         if (relativeEnd < 0) final = max((len + relativeEnd), 0);
-         else final = min(relativeEnd, len);
-         while (k < final) {
-           var pk = String(k);
-           o[pk] = value;
-           k += 1;
-         }
-         return o;
-       });
+  var end = buffer.length;
+  if (this.charLength) {
+    // buffer the incomplete character bytes we got
+    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
+    end -= this.charReceived;
+  }
 
-     // 22.2.3.9 %TypedArray%.prototype.filter ( callbackfn [ , thisArg ] )
-     define(
-       $TypedArray$.prototype, 'filter',
-       function filter(callbackfn) {
-         var thisArg = arguments[1];
+  charStr += buffer.toString(this.encoding, 0, end);
 
-         var o = ToObject(this);
-         var lenVal = o.length;
-         var len = ToLength(lenVal);
-         if (!IsCallable(callbackfn)) throw TypeError();
-         var t = thisArg;
-         var c = o.constructor;
-         var kept = [];
-         var k = 0;
-         var captured = 0;
-         while (k < len) {
-           var kValue = o[k];
-           var selected = callbackfn.call(t, kValue, k, o);
-           if (selected) {
-             kept.push(kValue);
-             ++captured;
-           }
-           ++k;
-         }
-         var a = new c(captured);
-         var n = 0;
-         for (var i = 0; i < kept.length; ++i) {
-           var e = kept[i];
-           a[n] = e;
-           ++n;
-         }
-         return a;
-       });
+  var end = charStr.length - 1;
+  var charCode = charStr.charCodeAt(end);
+  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
+  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
+    var size = this.surrogateSize;
+    this.charLength += size;
+    this.charReceived += size;
+    this.charBuffer.copy(this.charBuffer, size, 0, size);
+    buffer.copy(this.charBuffer, 0, 0, size);
+    return charStr.substring(0, end);
+  }
 
-     // 22.2.3.10 %TypedArray%.prototype.find (predicate [ , thisArg ] )
-     define($TypedArray$.prototype, 'find', Array.prototype.find);
+  // or just emit the charStr
+  return charStr;
+};
 
-     // 22.2.3.11 %TypedArray%.prototype.findIndex ( predicate [ , thisArg ] )
-     define($TypedArray$.prototype, 'findIndex', Array.prototype.findIndex);
+// detectIncompleteChar determines if there is an incomplete UTF-8 character at
+// the end of the given buffer. If so, it sets this.charLength to the byte
+// length that character, and sets this.charReceived to the number of bytes
+// that are available for this character.
+StringDecoder.prototype.detectIncompleteChar = function(buffer) {
+  // determine how many bytes we have to check at the end of this buffer
+  var i = (buffer.length >= 3) ? 3 : buffer.length;
 
-     // 22.2.3.12 %TypedArray%.prototype.forEach ( callbackfn [ , thisArg ] )
-     define($TypedArray$.prototype, 'forEach', Array.prototype.forEach);
+  // Figure out if one of the last i bytes of our buffer announces an
+  // incomplete char.
+  for (; i > 0; i--) {
+    var c = buffer[buffer.length - i];
 
-     // 22.2.3.13 %TypedArray%.prototype.indexOf (searchElement [ , fromIndex ] )
-     define($TypedArray$.prototype, 'indexOf', Array.prototype.indexOf);
+    // See http://en.wikipedia.org/wiki/UTF-8#Description
 
-     // 22.2.3.14 %TypedArray%.prototype.join ( separator )
-     define($TypedArray$.prototype, 'join', Array.prototype.join);
+    // 110XXXXX
+    if (i == 1 && c >> 5 == 0x06) {
+      this.charLength = 2;
+      break;
+    }
 
-     // 22.2.3.15 %TypedArray%.prototype.keys ( )
-     define($TypedArray$.prototype, 'keys', Array.prototype.keys);
+    // 1110XXXX
+    if (i <= 2 && c >> 4 == 0x0E) {
+      this.charLength = 3;
+      break;
+    }
 
-     // 22.2.3.16 %TypedArray%.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
-     define($TypedArray$.prototype, 'lastIndexOf', Array.prototype.lastIndexOf);
+    // 11110XXX
+    if (i <= 3 && c >> 3 == 0x1E) {
+      this.charLength = 4;
+      break;
+    }
+  }
+  this.charReceived = i;
+};
 
-     // 22.2.3.17 get %TypedArray%.prototype.length
+StringDecoder.prototype.end = function(buffer) {
+  var res = '';
+  if (buffer && buffer.length)
+    res = this.write(buffer);
 
-     // 22.2.3.18 %TypedArray%.prototype.map ( callbackfn [ , thisArg ] )
-     define(
-       $TypedArray$.prototype, 'map',
-       function map(callbackfn) {
-         var thisArg = arguments[1];
+  if (this.charReceived) {
+    var cr = this.charReceived;
+    var buf = this.charBuffer;
+    var enc = this.encoding;
+    res += buf.slice(0, cr).toString(enc);
+  }
 
-         var o = ToObject(this);
-         var lenValue = o.length;
-         var len = ToLength(lenValue);
-         if (!IsCallable(callbackfn)) throw TypeError();
-         var t = thisArg;
-         var a = undefined;
-         var c = o.constructor;
-         if (IsConstructor(c))
-           a = new c(len);
-         if (a === undefined)
-           a = new Array(len);
-         var k = 0;
-         while (k < len) {
-           var kPresent = HasProperty(o, k);
-           if (kPresent) {
-             var kValue = o[k];
-             var mappedValue = callbackfn.call(t, kValue, k, o);
-             a[k] = mappedValue;
-           }
-           ++k;
-         }
-         return a;
-       });
+  return res;
+};
 
-     // 22.2.3.19 %TypedArray%.prototype.reduce ( callbackfn [, initialValue] )
-     define($TypedArray$.prototype, 'reduce', Array.prototype.reduce);
+function passThroughWrite(buffer) {
+  return buffer.toString(this.encoding);
+}
 
-     // 22.2.3.20 %TypedArray%.prototype.reduceRight ( callbackfn [, initialValue] )
-     define($TypedArray$.prototype, 'reduceRight', Array.prototype.reduceRight);
+function utf16DetectIncompleteChar(buffer) {
+  this.charReceived = buffer.length % 2;
+  this.charLength = this.charReceived ? 2 : 0;
+}
 
-     // 22.2.3.21 %TypedArray%.prototype.reverse ( )
-     define($TypedArray$.prototype, 'reverse', Array.prototype.reverse);
+function base64DetectIncompleteChar(buffer) {
+  this.charReceived = buffer.length % 3;
+  this.charLength = this.charReceived ? 3 : 0;
+}
 
-     // 22.2.3.22 %TypedArray%.prototype.set ( overloaded [ , offset ])
-     // 22.2.3.22.1 %TypedArray%.prototype.set (array [ , offset ] )
-     // 22.2.3.22.2 %TypedArray%.prototype.set(typedArray [, offset ] )
+},{"buffer":5}],30:[function(require,module,exports){
+(function (global){
 
-     // 22.2.3.23 %TypedArray%.prototype.slice ( start, end )
-     define(
-       $TypedArray$.prototype, 'slice',
-       function slice(start, end) {
-         var o = ToObject(this);
-         var lenVal = o.length;
-         var len = ToLength(lenVal);
-         var relativeStart = ToInteger(start);
-         var k = (relativeStart < 0) ? max(len + relativeStart, 0) : min(relativeStart, len);
-         var relativeEnd = (end === undefined) ? len : ToInteger(end);
-         var final = (relativeEnd < 0) ? max(len + relativeEnd, 0) : min(relativeEnd, len);
-         var count = final - k;
-         var c = o.constructor;
-         if (IsConstructor(c)) {
-           var a = new c(count);
-         } else {
-           throw TypeError();
-         }
-         var n = 0;
-         while (k < final) {
-           var kValue = o[k];
-           a[n] = kValue;
-           ++k;
-           ++n;
-         }
-         return a;
-       });
+/**
+ * Module exports.
+ */
 
-     // 22.2.3.24 %TypedArray%.prototype.some ( callbackfn [ , thisArg ] )
-     define($TypedArray$.prototype, 'some', Array.prototype.some);
+module.exports = deprecate;
 
-     // 22.2.3.25 %TypedArray%.prototype.sort ( comparefn )
-     define(
-       $TypedArray$.prototype, 'sort',
-       function sort() {
-         var comparefn = arguments[0];
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
 
-         function sortCompare(x, y) {
-           console.assert(Type(x) === 'number' && Type(y) === 'number');
-           if (x !== x && y !== y) return +0;
-           if (x !== x) return 1;
-           if (y !== y) return -1;
-           if (comparefn !== undefined) {
-             return comparefn(x, y);
-           }
-           if (x < y) return -1;
-           if (x > y) return 1;
-           return +0;
-         }
-         return Array.prototype.sort.call(this, sortCompare);
-       });
+function deprecate (fn, msg) {
+  if (config('noDeprecation')) {
+    return fn;
+  }
 
-     // 22.2.3.26 %TypedArray%.prototype.subarray( [ begin [ , end ] ] )
-     // 22.2.3.27 %TypedArray%.prototype.toLocaleString ([ reserved1 [ , reserved2 ] ])
-     // 22.2.3.28 %TypedArray%.prototype.toString ( )
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (config('throwDeprecation')) {
+        throw new Error(msg);
+      } else if (config('traceDeprecation')) {
+        console.trace(msg);
+      } else {
+        console.warn(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
 
-     // 22.2.3.29 %TypedArray%.prototype.values ( )
-     define($TypedArray$.prototype, 'values', Array.prototype.values);
+  return deprecated;
+}
 
-     // 22.2.3.30 %TypedArray%.prototype [ @@iterator ] ( )
-     define(
-       $TypedArray$.prototype, $$iterator,
-       $TypedArray$.prototype.values
-     );
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
 
-     // 22.2.3.31 get %TypedArray%.prototype [ @@toStringTag ]
-     define($TypedArray$.prototype, $$toStringTag, $TypedArrayName$);
+function config (name) {
+  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+  try {
+    if (!global.localStorage) return false;
+  } catch (_) {
+    return false;
+  }
+  var val = global.localStorage[name];
+  if (null == val) return false;
+  return String(val).toLowerCase() === 'true';
+}
 
-     // 22.2.4 The TypedArray Constructors
-     // 22.2.4.1TypedArray( ... argumentsList)
-     // 22.2.5 Properties of the TypedArray Constructors
-     // 22.2.5.1 TypedArray.BYTES_PER_ELEMENT
-     // 22.2.5.2 TypedArray.prototype
-     // 22.2.6 Properties of TypedArray Prototype Objects
-     // 22.2.6.1 TypedArray.prototype.BYTES_PER_ELEMENT
-     // 22.2.6.2 TypedArray.prototype.constructor
-     // 22.2.7 Properties of TypedArray Instances
-   });
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],31:[function(require,module,exports){
+arguments[4][9][0].apply(exports,arguments)
+},{"dup":9}],32:[function(require,module,exports){
+module.exports = function isBuffer(arg) {
+  return arg && typeof arg === 'object'
+    && typeof arg.copy === 'function'
+    && typeof arg.fill === 'function'
+    && typeof arg.readUInt8 === 'function';
+}
+},{}],33:[function(require,module,exports){
+(function (process,global){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-  // ---------------------------------------
-  // 23 Keyed Collection
-  // ---------------------------------------
+var formatRegExp = /%[sdj%]/g;
+exports.format = function(f) {
+  if (!isString(f)) {
+    var objects = [];
+    for (var i = 0; i < arguments.length; i++) {
+      objects.push(inspect(arguments[i]));
+    }
+    return objects.join(' ');
+  }
 
-  // ---------------------------------------
-  // 23.1 Map Objects
-  // ---------------------------------------
+  var i = 1;
+  var args = arguments;
+  var len = args.length;
+  var str = String(f).replace(formatRegExp, function(x) {
+    if (x === '%%') return '%';
+    if (i >= len) return x;
+    switch (x) {
+      case '%s': return String(args[i++]);
+      case '%d': return Number(args[i++]);
+      case '%j':
+        try {
+          return JSON.stringify(args[i++]);
+        } catch (_) {
+          return '[Circular]';
+        }
+      default:
+        return x;
+    }
+  });
+  for (var x = args[i]; i < len; x = args[++i]) {
+    if (isNull(x) || !isObject(x)) {
+      str += ' ' + x;
+    } else {
+      str += ' ' + inspect(x);
+    }
+  }
+  return str;
+};
 
-  (function() {
-    // 23.1.1 The Map Constructor
 
-    // 23.1.1.1 Map ( [ iterable ] )
-    /** @constructor */
-    function Map(/*iterable*/) {
-      var map = strict(this);
-      var iterable = arguments[0];
+// Mark that a method should not be used.
+// Returns a modified function which warns once by default.
+// If --no-deprecation is set, then it is a no-op.
+exports.deprecate = function(fn, msg) {
+  // Allow for deprecating things in the process of starting up.
+  if (isUndefined(global.process)) {
+    return function() {
+      return exports.deprecate(fn, msg).apply(this, arguments);
+    };
+  }
+
+  if (process.noDeprecation === true) {
+    return fn;
+  }
+
+  var warned = false;
+  function deprecated() {
+    if (!warned) {
+      if (process.throwDeprecation) {
+        throw new Error(msg);
+      } else if (process.traceDeprecation) {
+        console.trace(msg);
+      } else {
+        console.error(msg);
+      }
+      warned = true;
+    }
+    return fn.apply(this, arguments);
+  }
+
+  return deprecated;
+};
+
+
+var debugs = {};
+var debugEnviron;
+exports.debuglog = function(set) {
+  if (isUndefined(debugEnviron))
+    debugEnviron = process.env.NODE_DEBUG || '';
+  set = set.toUpperCase();
+  if (!debugs[set]) {
+    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
+      var pid = process.pid;
+      debugs[set] = function() {
+        var msg = exports.format.apply(exports, arguments);
+        console.error('%s %d: %s', set, pid, msg);
+      };
+    } else {
+      debugs[set] = function() {};
+    }
+  }
+  return debugs[set];
+};
+
+
+/**
+ * Echos the value of a value. Trys to print the value out
+ * in the best way possible given the different types.
+ *
+ * @param {Object} obj The object to print out.
+ * @param {Object} opts Optional options object that alters the output.
+ */
+/* legacy: obj, showHidden, depth, colors*/
+function inspect(obj, opts) {
+  // default options
+  var ctx = {
+    seen: [],
+    stylize: stylizeNoColor
+  };
+  // legacy...
+  if (arguments.length >= 3) ctx.depth = arguments[2];
+  if (arguments.length >= 4) ctx.colors = arguments[3];
+  if (isBoolean(opts)) {
+    // legacy...
+    ctx.showHidden = opts;
+  } else if (opts) {
+    // got an "options" object
+    exports._extend(ctx, opts);
+  }
+  // set default options
+  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
+  if (isUndefined(ctx.depth)) ctx.depth = 2;
+  if (isUndefined(ctx.colors)) ctx.colors = false;
+  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
+  if (ctx.colors) ctx.stylize = stylizeWithColor;
+  return formatValue(ctx, obj, ctx.depth);
+}
+exports.inspect = inspect;
+
 
-      if (Type(map) !== 'object') throw TypeError();
-      if ('[[MapData]]' in map) throw TypeError();
+// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+inspect.colors = {
+  'bold' : [1, 22],
+  'italic' : [3, 23],
+  'underline' : [4, 24],
+  'inverse' : [7, 27],
+  'white' : [37, 39],
+  'grey' : [90, 39],
+  'black' : [30, 39],
+  'blue' : [34, 39],
+  'cyan' : [36, 39],
+  'green' : [32, 39],
+  'magenta' : [35, 39],
+  'red' : [31, 39],
+  'yellow' : [33, 39]
+};
 
-      if (iterable !== undefined) {
-        var adder = map['set'];
-        if (!IsCallable(adder)) throw TypeError();
-        var iter = GetIterator(ToObject(iterable));
-      }
-      set_internal(map, '[[MapData]]', { keys: [], values: [] });
-      if (iter === undefined) return map;
-      while (true) {
-        var next = IteratorStep(iter);
-        if (next === false)
-          return map;
-        var nextItem = IteratorValue(next);
-        if (Type(nextItem) !== 'object') throw TypeError();
-        var k = nextItem[0];
-        var v = nextItem[1];
-        adder.call(map, k, v);
-      }
+// Don't use 'blue' not visible on cmd.exe
+inspect.styles = {
+  'special': 'cyan',
+  'number': 'yellow',
+  'boolean': 'yellow',
+  'undefined': 'grey',
+  'null': 'bold',
+  'string': 'green',
+  'date': 'magenta',
+  // "name": intentionally not styling
+  'regexp': 'red'
+};
 
-      return map;
-    }
 
-    if (!('Map' in global) || OVERRIDE_NATIVE_FOR_TESTING ||
-        (function() { try { new global.Map([]); return false; } catch (_) { return true; } }()) ||
-        (function() { try { return !new global.Map().entries().next; } catch (_) { return true; } }()) ||
-        (new global.Map([['a', 1]]).size !== 1))
-      global.Map = Map;
+function stylizeWithColor(str, styleType) {
+  var style = inspect.styles[styleType];
 
+  if (style) {
+    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
+           '\u001b[' + inspect.colors[style][1] + 'm';
+  } else {
+    return str;
+  }
+}
 
-    function MapDataIndexOf(mapData, key) {
-      var i;
-      if (key === key) return mapData.keys.indexOf(key);
-      // Slow case for NaN
-      for (i = 0; i < mapData.keys.length; i += 1)
-        if (SameValueZero(mapData.keys[i], key)) return i;
-      return -1;
-    }
 
-    // 23.1.1.2 new Map ( ... argumentsList )
-    // 23.1.2 Properties of the Map Constructor
-    // 23.1.2.1 Map.prototype
-    var $MapPrototype$ = {};
-    Map.prototype = $MapPrototype$;
+function stylizeNoColor(str, styleType) {
+  return str;
+}
 
-    // 23.1.2.2 get Map [ @@species ]
 
-    // 23.1.3 Properties of the Map Prototype Object
-    // 23.1.3.1 Map.prototype.clear ()
-    define(
-      Map.prototype, 'clear',
-      function clear() {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
-        entries.keys.length = 0;
-        entries.values.length = 0;
-        return undefined;
-      });
+function arrayToHash(array) {
+  var hash = {};
 
-    // 23.1.3.2 Map.prototype.constructor
+  array.forEach(function(val, idx) {
+    hash[val] = true;
+  });
 
-    // 23.1.3.3 Map.prototype.delete ( key )
-    define(
-      Map.prototype, 'delete',
-      function delete_(key) {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
-        var i = MapDataIndexOf(entries, key);
-        if (i < 0) return false;
-        entries.keys[i] = empty;
-        entries.values[i] = empty;
-        return true;
-      });
+  return hash;
+}
 
-    // 23.1.3.4 Map.prototype.entries ( )
-    define(
-      Map.prototype, 'entries',
-      function entries() {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        return CreateMapIterator(m, 'key+value');
-      });
 
-    // 23.1.3.5 Map.prototype.forEach ( callbackfn [ , thisArg ] )
-    define(
-      Map.prototype, 'forEach',
-      function forEach(callbackfn /*, thisArg*/) {
-        var thisArg = arguments[1];
+function formatValue(ctx, value, recurseTimes) {
+  // Provide a hook for user-specified inspect functions.
+  // Check that value is an object with an inspect function on it
+  if (ctx.customInspect &&
+      value &&
+      isFunction(value.inspect) &&
+      // Filter out the util module, it's inspect function is special
+      value.inspect !== exports.inspect &&
+      // Also filter out any prototype objects using the circular check.
+      !(value.constructor && value.constructor.prototype === value)) {
+    var ret = value.inspect(recurseTimes, ctx);
+    if (!isString(ret)) {
+      ret = formatValue(ctx, ret, recurseTimes);
+    }
+    return ret;
+  }
 
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
+  // Primitive types cannot have properties
+  var primitive = formatPrimitive(ctx, value);
+  if (primitive) {
+    return primitive;
+  }
 
-        if (!IsCallable(callbackfn)) {
-          throw TypeError('First argument to forEach is not callable.');
-        }
-        for (var i = 0; i < entries.keys.length; ++i) {
-          if (entries.keys[i] !== empty) {
-            callbackfn.call(thisArg, entries.values[i], entries.keys[i], m);
-          }
-        }
-        return undefined;
-      });
+  // Look up the keys of the object.
+  var keys = Object.keys(value);
+  var visibleKeys = arrayToHash(keys);
 
-    // 23.1.3.6 Map.prototype.get ( key )
-    define(
-      Map.prototype, 'get',
-      function get(key) {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
-        var i = MapDataIndexOf(entries, key);
-        if (i >= 0) return entries.values[i];
-        return undefined;
-      });
+  if (ctx.showHidden) {
+    keys = Object.getOwnPropertyNames(value);
+  }
 
-    // 23.1.3.7 Map.prototype.has ( key )
-    define(
-      Map.prototype, 'has',
-      function has(key) {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
-        if (MapDataIndexOf(entries, key) >= 0) return true;
-        return false;
-      });
+  // IE doesn't make error fields non-enumerable
+  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
+  if (isError(value)
+      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
+    return formatError(value);
+  }
 
-    // 23.1.3.8 Map.prototype.keys ( )
-    define(
-      Map.prototype, 'keys',
-      function keys() {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        return CreateMapIterator(m, 'key');
-      });
+  // Some type of object without properties can be shortcutted.
+  if (keys.length === 0) {
+    if (isFunction(value)) {
+      var name = value.name ? ': ' + value.name : '';
+      return ctx.stylize('[Function' + name + ']', 'special');
+    }
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+    }
+    if (isDate(value)) {
+      return ctx.stylize(Date.prototype.toString.call(value), 'date');
+    }
+    if (isError(value)) {
+      return formatError(value);
+    }
+  }
 
-    // 23.1.3.9 Map.prototype.set ( key , value )
-    define(
-      Map.prototype, 'set',
-      function set(key, value) {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        if (!('[[MapData]]' in m)) throw TypeError();
-        if (m['[[MapData]]'] === undefined) throw TypeError();
-        var entries = m['[[MapData]]'];
-        var i = MapDataIndexOf(entries, key);
-        if (i < 0) i = entries.keys.length;
-        if (SameValue(key, -0)) key = 0;
-        entries.keys[i] = key;
-        entries.values[i] = value;
-        return m;
-      });
+  var base = '', array = false, braces = ['{', '}'];
 
-    // 23.1.3.10 get Map.prototype.size
-    Object.defineProperty(
-      Map.prototype, 'size', {
-        get: function() {
-          var m = strict(this);
-          if (Type(m) !== 'object') throw TypeError();
-          if (!('[[MapData]]' in m)) throw TypeError();
-          if (m['[[MapData]]'] === undefined) throw TypeError();
-          var entries = m['[[MapData]]'];
-          var count = 0;
-          for (var i = 0; i < entries.keys.length; ++i) {
-            if (entries.keys[i] !== empty)
-              count = count + 1;
-          }
-          return count;
-        }
-      });
+  // Make Array say that they are Array
+  if (isArray(value)) {
+    array = true;
+    braces = ['[', ']'];
+  }
 
-    // 23.1.3.11 Map.prototype.values ( )
-    define(
-      Map.prototype, 'values',
-      function values() {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        return CreateMapIterator(m, 'value');
-      });
+  // Make functions say that they are functions
+  if (isFunction(value)) {
+    var n = value.name ? ': ' + value.name : '';
+    base = ' [Function' + n + ']';
+  }
 
-    // 23.1.3.12 Map.prototype [ @@iterator ]( )
-    define(
-      Map.prototype, $$iterator,
-      function() {
-        var m = strict(this);
-        if (Type(m) !== 'object') throw TypeError();
-        return CreateMapIterator(m, 'key+value');
-      });
+  // Make RegExps say that they are RegExps
+  if (isRegExp(value)) {
+    base = ' ' + RegExp.prototype.toString.call(value);
+  }
 
-    // 23.1.3.13 Map.prototype [ @@toStringTag ]
-    define(global.Map.prototype, $$toStringTag, 'Map');
+  // Make dates with properties first say the date
+  if (isDate(value)) {
+    base = ' ' + Date.prototype.toUTCString.call(value);
+  }
 
-    // 23.1.4 Properties of Map Instances
-    // 23.1.5 Map Iterator Objects
+  // Make error with message first say the error
+  if (isError(value)) {
+    base = ' ' + formatError(value);
+  }
 
-    /** @constructor */
-    function MapIterator() {}
+  if (keys.length === 0 && (!array || value.length == 0)) {
+    return braces[0] + base + braces[1];
+  }
 
-    // 23.1.5.1 CreateMapIterator Abstract Operation
-    function CreateMapIterator(map, kind) {
-      if (Type(map) !== 'object') throw TypeError();
-      if (!('[[MapData]]' in map)) throw TypeError();
-      if (map['[[MapData]]'] === undefined) throw TypeError();
-      var iterator = new MapIterator;
-      set_internal(iterator, '[[Map]]', map);
-      set_internal(iterator, '[[MapNextIndex]]', 0);
-      set_internal(iterator, '[[MapIterationKind]]', kind);
-      return iterator;
+  if (recurseTimes < 0) {
+    if (isRegExp(value)) {
+      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
+    } else {
+      return ctx.stylize('[Object]', 'special');
     }
+  }
 
-    // 23.1.5.2 The %MapIteratorPrototype% Object
-    var $MapIteratorPrototype$ = Object.create($IteratorPrototype$);
-    MapIterator.prototype = $MapIteratorPrototype$;
+  ctx.seen.push(value);
 
-    // 23.1.5.2.1 %MapIteratorPrototype%.next ( )
-    define(
-      $MapIteratorPrototype$, 'next',
-      function next() {
-        var o = strict(this);
-        if (Type(o) !== 'object') throw TypeError();
-        var m = o['[[Map]]'],
-            index = o['[[MapNextIndex]]'],
-            itemKind = o['[[MapIterationKind]]'],
-            entries = m['[[MapData]]'];
-        while (index < entries.keys.length) {
-          var e = {key: entries.keys[index], value: entries.values[index]};
-          index = index += 1;
-          set_internal(o, '[[MapNextIndex]]', index);
-          if (e.key !== empty) {
-            if (itemKind === 'key') {
-              return CreateIterResultObject(e.key, false);
-            } else if (itemKind === 'value') {
-              return CreateIterResultObject(e.value, false);
-            } else {
-              return CreateIterResultObject([e.key, e.value], false);
-            }
-          }
-        }
-        return CreateIterResultObject(undefined, true);
-      });
+  var output;
+  if (array) {
+    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+  } else {
+    output = keys.map(function(key) {
+      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
+    });
+  }
 
-    // 23.1.5.2.2 %MapIteratorPrototype% [ @@toStringTag ]
-    define($MapIteratorPrototype$, $$toStringTag, 'Map Iterator');
+  ctx.seen.pop();
 
-    // 23.1.5.3 Properties of Map Iterator Instances
-  }());
+  return reduceToSingleString(output, base, braces);
+}
 
-  // ---------------------------------------
-  // 23.2 Set Objects
-  // ---------------------------------------
 
-  (function() {
-    // 23.2.1 The Set Constructor
-    // 23.2.1.1 Set ( [ iterable ] )
+function formatPrimitive(ctx, value) {
+  if (isUndefined(value))
+    return ctx.stylize('undefined', 'undefined');
+  if (isString(value)) {
+    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+                                             .replace(/'/g, "\\'")
+                                             .replace(/\\"/g, '"') + '\'';
+    return ctx.stylize(simple, 'string');
+  }
+  if (isNumber(value))
+    return ctx.stylize('' + value, 'number');
+  if (isBoolean(value))
+    return ctx.stylize('' + value, 'boolean');
+  // For some reason typeof null is "object", so special case here.
+  if (isNull(value))
+    return ctx.stylize('null', 'null');
+}
 
-    /** @constructor */
-    function Set(/*iterable*/) {
-      var set = strict(this);
-      var iterable = arguments[0];
 
-      if (Type(set) !== 'object') throw TypeError();
-      if ('[[SetData]]' in set) throw TypeError();
+function formatError(value) {
+  return '[' + Error.prototype.toString.call(value) + ']';
+}
 
-      if (iterable !== undefined) {
-        var adder = set['add'];
-        if (!IsCallable(adder)) throw TypeError();
-        var iter = GetIterator(ToObject(iterable));
-      }
-      set_internal(set, '[[SetData]]', []);
-      if (iter === undefined) return set;
-      while (true) {
-        var next = IteratorStep(iter);
-        if (next === false)
-          return set;
-        var nextValue = IteratorValue(next);
-        adder.call(set, nextValue);
-      }
 
-      return set;
+function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
+  var output = [];
+  for (var i = 0, l = value.length; i < l; ++i) {
+    if (hasOwnProperty(value, String(i))) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          String(i), true));
+    } else {
+      output.push('');
+    }
+  }
+  keys.forEach(function(key) {
+    if (!key.match(/^\d+$/)) {
+      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
+          key, true));
     }
+  });
+  return output;
+}
 
-    if (!('Set' in global) || OVERRIDE_NATIVE_FOR_TESTING ||
-        (function() { try { return !new global.Set().entries().next; } catch (_) { return true; } }()) ||
-        (new global.Set([1]).size !== 1))
-      global.Set = Set;
 
-    function SetDataIndexOf(setData, key) {
-      var i;
-      if (key === key)
-        return setData.indexOf(key);
-      // Slow case for NaN
-      for (i = 0; i < setData.length; i += 1)
-        if (SameValueZero(setData[i], key)) return i;
-      return -1;
+function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
+  var name, str, desc;
+  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
+  if (desc.get) {
+    if (desc.set) {
+      str = ctx.stylize('[Getter/Setter]', 'special');
+    } else {
+      str = ctx.stylize('[Getter]', 'special');
+    }
+  } else {
+    if (desc.set) {
+      str = ctx.stylize('[Setter]', 'special');
+    }
+  }
+  if (!hasOwnProperty(visibleKeys, key)) {
+    name = '[' + key + ']';
+  }
+  if (!str) {
+    if (ctx.seen.indexOf(desc.value) < 0) {
+      if (isNull(recurseTimes)) {
+        str = formatValue(ctx, desc.value, null);
+      } else {
+        str = formatValue(ctx, desc.value, recurseTimes - 1);
+      }
+      if (str.indexOf('\n') > -1) {
+        if (array) {
+          str = str.split('\n').map(function(line) {
+            return '  ' + line;
+          }).join('\n').substr(2);
+        } else {
+          str = '\n' + str.split('\n').map(function(line) {
+            return '   ' + line;
+          }).join('\n');
+        }
+      }
+    } else {
+      str = ctx.stylize('[Circular]', 'special');
     }
+  }
+  if (isUndefined(name)) {
+    if (array && key.match(/^\d+$/)) {
+      return str;
+    }
+    name = JSON.stringify('' + key);
+    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+      name = name.substr(1, name.length - 2);
+      name = ctx.stylize(name, 'name');
+    } else {
+      name = name.replace(/'/g, "\\'")
+                 .replace(/\\"/g, '"')
+                 .replace(/(^"|"$)/g, "'");
+      name = ctx.stylize(name, 'string');
+    }
+  }
 
-    // 23.2.1.2 new Set ( ...argumentsList )
-    // 23.2.2 Properties of the Set Constructor
-
-    // 23.2.2.1 Set.prototype
-    var $SetPrototype$ =  {};
-    Set.prototype = $SetPrototype$;
-
-    // 23.2.2.2 get Set [ @@species ]
-    // 23.2.3 Properties of the Set Prototype Object
-
-    // 23.2.3.1 Set.prototype.add (value )
-    define(
-      Set.prototype, 'add',
-      function add(value) {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        if (!('[[SetData]]' in s)) throw TypeError();
-        if (s['[[SetData]]'] === undefined) throw TypeError();
-        if (SameValue(value, -0)) value = 0;
-        var entries = s['[[SetData]]'];
-        var i = SetDataIndexOf(entries, value);
-        if (i < 0) i = s['[[SetData]]'].length;
-        s['[[SetData]]'][i] = value;
+  return name + ': ' + str;
+}
 
-        return s;
-      });
 
-    // 23.2.3.2 Set.prototype.clear ()
-    define(
-      Set.prototype, 'clear',
-      function clear() {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        if (!('[[SetData]]' in s)) throw TypeError();
-        if (s['[[SetData]]'] === undefined) throw TypeError();
-        var entries = s['[[SetData]]'];
-        entries.length = 0;
-        return undefined;
-      });
+function reduceToSingleString(output, base, braces) {
+  var numLinesEst = 0;
+  var length = output.reduce(function(prev, cur) {
+    numLinesEst++;
+    if (cur.indexOf('\n') >= 0) numLinesEst++;
+    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
+  }, 0);
 
-    // 23.2.3.3 Set.prototype.constructor
-    // 23.2.3.4 Set.prototype.delete ( value )
-    define(
-      Set.prototype, 'delete',
-      function delete_(value) {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        if (!('[[SetData]]' in s)) throw TypeError();
-        if (s['[[SetData]]'] === undefined) throw TypeError();
-        var entries = s['[[SetData]]'];
-        var i = SetDataIndexOf(entries, value);
-        if (i < 0) return false;
-        entries[i] = empty;
-        return true;
-      });
+  if (length > 60) {
+    return braces[0] +
+           (base === '' ? '' : base + '\n ') +
+           ' ' +
+           output.join(',\n  ') +
+           ' ' +
+           braces[1];
+  }
 
-    // 23.2.3.5 Set.prototype.entries ( )
-    define(
-      Set.prototype, 'entries',
-      function entries() {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        return CreateSetIterator(s, 'key+value');
-      });
+  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+}
 
-    // 23.2.3.6 Set.prototype.forEach ( callbackfn [ , thisArg ] )
-    define(
-      Set.prototype, 'forEach',
-      function forEach(callbackfn/*, thisArg*/) {
-        var thisArg = arguments[1];
 
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        if (!('[[SetData]]' in s)) throw TypeError();
-        if (s['[[SetData]]'] === undefined) throw TypeError();
-        var entries = s['[[SetData]]'];
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+function isArray(ar) {
+  return Array.isArray(ar);
+}
+exports.isArray = isArray;
 
-        if (!IsCallable(callbackfn)) {
-          throw TypeError('First argument to forEach is not callable.');
-        }
-        for (var i = 0; i < entries.length; ++i) {
-          if (entries[i] !== empty) {
-            callbackfn.call(thisArg, entries[i], entries[i], s);
-          }
-        }
-      });
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+exports.isBoolean = isBoolean;
 
-    // 23.2.3.7 Set.prototype.has ( value )
-    define(
-      Set.prototype, 'has',
-      function has(key) {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        if (!('[[SetData]]' in s)) throw TypeError();
-        if (s['[[SetData]]'] === undefined) throw TypeError();
-        var entries = s['[[SetData]]'];
-        return SetDataIndexOf(entries, key) !== -1;
-      });
+function isNull(arg) {
+  return arg === null;
+}
+exports.isNull = isNull;
 
-    // 23.2.3.8 Set.prototype.keys ( )
-    // See Set.prototype.values
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+exports.isNullOrUndefined = isNullOrUndefined;
 
-    // 23.2.3.9 get Set.prototype.size
-    Object.defineProperty(
-      Set.prototype, 'size', {
-        get: function() {
-          var s = strict(this);
-          if (Type(s) !== 'object') throw TypeError();
-          if (!('[[SetData]]' in s)) throw TypeError();
-          if (s['[[SetData]]'] === undefined) throw TypeError();
-          var entries = s['[[SetData]]'];
-          var count = 0;
-          for (var i = 0; i < entries.length; ++i) {
-            if (entries[i] !== empty)
-              count = count + 1;
-          }
-          return count;
-        }
-      });
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+exports.isNumber = isNumber;
 
-    // 23.2.3.10 Set.prototype.values ( )
-    define(
-      Set.prototype, 'values',
-      function values() {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        return CreateSetIterator(s, 'value');
-      });
-    // NOTE: function name is still 'values':
-    Set.prototype.keys = Set.prototype.values;
+function isString(arg) {
+  return typeof arg === 'string';
+}
+exports.isString = isString;
 
-    // 23.2.3.11 Set.prototype [@@iterator ] ( )
-    define(
-      Set.prototype, $$iterator,
-      function() {
-        var s = strict(this);
-        if (Type(s) !== 'object') throw TypeError();
-        return CreateSetIterator(s);
-      });
+function isSymbol(arg) {
+  return typeof arg === 'symbol';
+}
+exports.isSymbol = isSymbol;
 
-    // 23.2.3.12 Set.prototype [ @@toStringTag ]
-    define(global.Set.prototype, $$toStringTag, 'Set');
+function isUndefined(arg) {
+  return arg === void 0;
+}
+exports.isUndefined = isUndefined;
 
-    // 23.2.4 Properties of Set Instances
-    // 23.2.5 Set Iterator Objects
-    /** @constructor */
-    function SetIterator() {}
+function isRegExp(re) {
+  return isObject(re) && objectToString(re) === '[object RegExp]';
+}
+exports.isRegExp = isRegExp;
 
-    // 23.2.5.1 CreateSetIterator Abstract Operation
-    function CreateSetIterator(set, kind) {
-      if (Type(set) !== 'object') throw TypeError();
-      if (!('[[SetData]]' in set)) throw TypeError();
-      if (set['[[SetData]]'] === undefined) throw TypeError();
-      var iterator = new SetIterator;
-      set_internal(iterator, '[[IteratedSet]]', set);
-      set_internal(iterator, '[[SetNextIndex]]', 0);
-      set_internal(iterator, '[[SetIterationKind]]', kind);
-      return iterator;
-    }
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+exports.isObject = isObject;
 
-    // 23.2.5.2 The %SetIteratorPrototype% Object
-    var $SetIteratorPrototype$ = Object.create($IteratorPrototype$);
-    SetIterator.prototype = $SetIteratorPrototype$;
+function isDate(d) {
+  return isObject(d) && objectToString(d) === '[object Date]';
+}
+exports.isDate = isDate;
 
-    // 23.2.5.2.1 %SetIteratorPrototype%.next( )
-    define(
-      $SetIteratorPrototype$, 'next',
-      function next() {
-        var o = strict(this);
-        if (Type(o) !== 'object') throw TypeError();
-        var s = o['[[IteratedSet]]'],
-            index = o['[[SetNextIndex]]'],
-            itemKind = o['[[SetIterationKind]]'],
-            entries = s['[[SetData]]'];
-        while (index < entries.length) {
-          var e = entries[index];
-          index = index += 1;
-          set_internal(o, '[[SetNextIndex]]', index);
-          if (e !== empty) {
-            if (itemKind === 'key+value')
-              return CreateIterResultObject([e, e], false);
-            return CreateIterResultObject(e, false);
-          }
-        }
-        return CreateIterResultObject(undefined, true);
-      });
+function isError(e) {
+  return isObject(e) &&
+      (objectToString(e) === '[object Error]' || e instanceof Error);
+}
+exports.isError = isError;
 
-    // 23.2.5.2.2 %SetIteratorPrototype% [ @@toStringTag ]
-    define($SetIteratorPrototype$, $$toStringTag, 'Set Iterator');
+function isFunction(arg) {
+  return typeof arg === 'function';
+}
+exports.isFunction = isFunction;
 
-    // 23.2.5.3 Properties of Set Iterator Instances
+function isPrimitive(arg) {
+  return arg === null ||
+         typeof arg === 'boolean' ||
+         typeof arg === 'number' ||
+         typeof arg === 'string' ||
+         typeof arg === 'symbol' ||  // ES6 symbol
+         typeof arg === 'undefined';
+}
+exports.isPrimitive = isPrimitive;
 
-  }());
+exports.isBuffer = require('./support/isBuffer');
 
-  // ---------------------------------------
-  // 23.3 WeakMap Objects
-  // ---------------------------------------
+function objectToString(o) {
+  return Object.prototype.toString.call(o);
+}
 
-  (function() {
-    // 23.3.1 The WeakMap Constructor
-    // 23.3.1.1 WeakMap ( [ iterable ] )
-    /** @constructor */
-    function WeakMap(/*iterable*/) {
-      var map = strict(this);
-      var iterable = arguments[0];
 
-      if (Type(map) !== 'object') throw TypeError();
-      if ('[[WeakMapData]]' in map) throw TypeError();
+function pad(n) {
+  return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
 
-      if (iterable !== undefined) {
-        var adder = map['set'];
-        if (!IsCallable(adder)) throw TypeError();
-        var iter = GetIterator(ToObject(iterable));
-      }
-      set_internal(map, '[[WeakMapData]]', new EphemeronTable);
-      if (iter === undefined) return map;
-      while (true) {
-        var next = IteratorStep(iter);
-        if (next === false)
-          return map;
-        var nextValue = IteratorValue(next);
-        if (Type(nextValue) !== 'object') throw TypeError();
-        var k = nextValue[0];
-        var v = nextValue[1];
-        adder.call(map, k, v);
-      }
 
-      return map;
-    }
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+              'Oct', 'Nov', 'Dec'];
 
-    if (!('WeakMap' in global) || OVERRIDE_NATIVE_FOR_TESTING)
-      global.WeakMap = WeakMap;
+// 26 Feb 16:19:34
+function timestamp() {
+  var d = new Date();
+  var time = [pad(d.getHours()),
+              pad(d.getMinutes()),
+              pad(d.getSeconds())].join(':');
+  return [d.getDate(), months[d.getMonth()], time].join(' ');
+}
 
-    // 23.3.2 Properties of the WeakMap Constructor
-    // 23.3.2.1 WeakMap.prototype
-    var $WeakMapPrototype$ = {};
-    WeakMap.prototype = $WeakMapPrototype$;
 
+// log is just a thin wrapper to console.log that prepends a timestamp
+exports.log = function() {
+  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
+};
 
 
-   // 23.3.2.2 WeakMap[ @@create ] ( )
-    // 23.3.3 Properties of the WeakMap Prototype Object
+/**
+ * Inherit the prototype methods from one constructor into another.
+ *
+ * The Function.prototype.inherits from lang.js rewritten as a standalone
+ * function (not on Function.prototype). NOTE: If this file is to be loaded
+ * during bootstrapping this function needs to be rewritten using some native
+ * functions as prototype setup using normal JavaScript does not work as
+ * expected during bootstrapping (see mirror.js in r114903).
+ *
+ * @param {function} ctor Constructor function which needs to inherit the
+ *     prototype.
+ * @param {function} superCtor Constructor function to inherit prototype from.
+ */
+exports.inherits = require('inherits');
 
-    // 23.3.3.1 WeakMap.prototype.constructor
+exports._extend = function(origin, add) {
+  // Don't do anything if add isn't an object
+  if (!add || !isObject(add)) return origin;
 
-    // 23.3.3.2 WeakMap.prototype.delete ( key )
-    define(
-      WeakMap.prototype, 'delete',
-      function delete_(key) {
-        var M = strict(this);
-        if (Type(M) !== 'object') throw TypeError();
-        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
-        if (Type(key) !== 'object') throw TypeError('Expected object');
-        return M['[[WeakMapData]]'].remove(key);
-      });
+  var keys = Object.keys(add);
+  var i = keys.length;
+  while (i--) {
+    origin[keys[i]] = add[keys[i]];
+  }
+  return origin;
+};
 
-    // 23.3.3.3 WeakMap.prototype.get ( key )
-    define(
-      WeakMap.prototype, 'get',
-      function get(key, defaultValue) {
-        var M = strict(this);
-        if (Type(M) !== 'object') throw TypeError();
-        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
-        if (Type(key) !== 'object') throw TypeError('Expected object');
-        return M['[[WeakMapData]]'].get(key, defaultValue);
-      });
+function hasOwnProperty(obj, prop) {
+  return Object.prototype.hasOwnProperty.call(obj, prop);
+}
 
-    // 23.3.3.4 WeakMap.prototype.has ( key )
-    define(
-      WeakMap.prototype, 'has',
-      function has(key) {
-        var M = strict(this);
-        if (Type(M) !== 'object') throw TypeError();
-        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
-        if (Type(key) !== 'object') throw TypeError('Expected object');
-        return M['[[WeakMapData]]'].has(key);
-      });
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./support/isBuffer":32,"_process":13,"inherits":31}],34:[function(require,module,exports){
+bitcoin = {
+      base58: require('bs58'),
+      bitcoin: require('bitcoinjs-lib'),
+      ecurve: require('ecurve'),
+      BigInteger: require('bigi'),
+      Buffer: require('buffer'),
+      elliptic: require('elliptic'),
+      bs58check: require('bs58check'),
+}
 
-    // 23.3.3.5 WeakMap.prototype.set ( key , value )
-    define(
-      WeakMap.prototype, 'set',
-      function set(key, value) {
-        var M = strict(this);
-        if (Type(M) !== 'object') throw TypeError();
-        if (M['[[WeakMapData]]'] === undefined) throw TypeError();
-        if (Type(key) !== 'object') throw TypeError('Expected object');
-        M['[[WeakMapData]]'].set(key, value);
-        return M;
-      });
+module.exports = bitcoin;
 
-    // 23.3.3.6 WeakMap.prototype [ @@toStringTag ]
-    define(global.WeakMap.prototype, $$toStringTag, 'WeakMap');
+},{"bigi":39,"bitcoinjs-lib":52,"bs58":83,"bs58check":85,"buffer":5,"ecurve":94,"elliptic":97}],35:[function(require,module,exports){
+// base-x encoding
+// Forked from https://github.com/cryptocoinjs/bs58
+// Originally written by Mike Hearn for BitcoinJ
+// Copyright (c) 2011 Google Inc
+// Ported to JavaScript by Stefan Thomas
+// Merged Buffer refactorings from base58-native by Stephen Pair
+// Copyright (c) 2013 BitPay Inc
 
-    // 23.3.4 Properties of WeakMap Instances
+var Buffer = require('safe-buffer').Buffer
 
-    // Polyfills for incomplete native implementations:
-    (function() {
-      var wm = new global.WeakMap();
-      var orig = global.WeakMap.prototype.set;
-      define(global.WeakMap.prototype, 'set', function set() {
-        orig.apply(this, arguments);
-        return this;
-      }, wm.set({}, 0) !== wm);
-    }());
-  }());
+module.exports = function base (ALPHABET) {
+  var ALPHABET_MAP = {}
+  var BASE = ALPHABET.length
+  var LEADER = ALPHABET.charAt(0)
 
-  // ---------------------------------------
-  // 23.4 WeakSet Objects
-  // ---------------------------------------
+  // pre-compute lookup table
+  for (var z = 0; z < ALPHABET.length; z++) {
+    var x = ALPHABET.charAt(z)
 
-  (function() {
-    // 23.4.1 The WeakSet Constructor
-    // 23.4.1.1 WeakSet ( [ iterable ] )
-    /** @constructor */
-    function WeakSet(/*iterable*/) {
-      var set = strict(this);
-      var iterable = arguments[0];
+    if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+    ALPHABET_MAP[x] = z
+  }
 
-      if (Type(set) !== 'object') throw TypeError();
-      if ('[[WeakSetData]]' in set) throw TypeError();
+  function encode (source) {
+    if (source.length === 0) return ''
 
-      if (iterable !== undefined) {
-        var adder = set['add'];
-        if (!IsCallable(adder)) throw TypeError();
-        var iter = GetIterator(ToObject(iterable));
-      }
-      set_internal(set, '[[WeakSetData]]', new EphemeronTable);
-      if (iter === undefined) return set;
-      while (true) {
-        var next = IteratorStep(iter);
-        if (next === false)
-          return set;
-        var nextValue = IteratorValue(next);
-        adder.call(set, nextValue);
+    var digits = [0]
+    for (var i = 0; i < source.length; ++i) {
+      for (var j = 0, carry = source[i]; j < digits.length; ++j) {
+        carry += digits[j] << 8
+        digits[j] = carry % BASE
+        carry = (carry / BASE) | 0
       }
 
-      return set;
+      while (carry > 0) {
+        digits.push(carry % BASE)
+        carry = (carry / BASE) | 0
+      }
     }
 
-    if (!('WeakSet' in global) || OVERRIDE_NATIVE_FOR_TESTING)
-      global.WeakSet = WeakSet;
+    var string = ''
 
-    // 23.4.2 Properties of the WeakSet Constructor
-    // 23.4.2.1 WeakSet.prototype
-    var $WeakSetPrototype$ = {};
-    WeakSet.prototype = $WeakSetPrototype$;
+    // deal with leading zeros
+    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
+    // convert digits to a string
+    for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
 
-    // 23.4.3 Properties of the WeakSet Prototype Object
-    // 23.4.3.1 WeakSet.prototype.add (value )
-    define(
-      WeakSet.prototype, 'add',
-      function add(value) {
-        var S = strict(this);
-        if (Type(S) !== 'object') throw TypeError();
-        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
-        if (Type(value) !== 'object') throw TypeError('Expected object');
-        S['[[WeakSetData]]'].set(value, true);
-        return S;
-      });
+    return string
+  }
 
-    // 23.4.3.2 WeakSet.prototype.constructor
-    // 23.4.3.3 WeakSet.prototype.delete ( value )
-    define(
-      WeakSet.prototype, 'delete',
-      function delete_(value) {
-        var S = strict(this);
-        if (Type(S) !== 'object') throw TypeError();
-        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
-        if (Type(value) !== 'object') throw TypeError('Expected object');
-        return S['[[WeakSetData]]'].remove(value);
-      });
+  function decodeUnsafe (string) {
+    if (string.length === 0) return Buffer.allocUnsafe(0)
 
-    // 23.4.3.4 WeakSet.prototype.has ( value )
-    define(
-      WeakSet.prototype, 'has',
-      function has(key) {
-        var S = strict(this);
-        if (Type(S) !== 'object') throw TypeError();
-        if (S['[[WeakSetData]]'] === undefined) throw TypeError();
-        if (Type(key) !== 'object') throw TypeError('Expected object');
-        return S['[[WeakSetData]]'].has(key);
-      });
+    var bytes = [0]
+    for (var i = 0; i < string.length; i++) {
+      var value = ALPHABET_MAP[string[i]]
+      if (value === undefined) return
 
-    // 23.4.3.5 WeakSet.prototype [ @@toStringTag ]
-    define(global.WeakSet.prototype, $$toStringTag, 'WeakSet');
+      for (var j = 0, carry = value; j < bytes.length; ++j) {
+        carry += bytes[j] * BASE
+        bytes[j] = carry & 0xff
+        carry >>= 8
+      }
 
-    // 23.4.4 Properties of WeakSet Instances
+      while (carry > 0) {
+        bytes.push(carry & 0xff)
+        carry >>= 8
+      }
+    }
 
-    // Polyfills for incomplete native implementations:
-    (function() {
-      var ws = new global.WeakSet();
-      var orig = global.WeakSet.prototype.add;
-      define(global.WeakSet.prototype, 'add', function add() {
-        orig.apply(this, arguments);
-        return this;
-      }, ws.add({}) !== ws);
-    }());
-  }());
+    // deal with leading zeros
+    for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
+      bytes.push(0)
+    }
 
-  // ---------------------------------------
-  // 24 Structured Data
-  // ---------------------------------------
+    return Buffer.from(bytes.reverse())
+  }
 
-  // ---------------------------------------
-  // 24.1 ArrayBuffer Objects
-  // ---------------------------------------
+  function decode (string) {
+    var buffer = decodeUnsafe(string)
+    if (buffer) return buffer
 
-  // See typedarray.js for TypedArray polyfill
+    throw new Error('Non-base' + BASE + ' character')
+  }
 
-  (function() {
-    if (!('ArrayBuffer' in global))
-      return;
+  return {
+    encode: encode,
+    decodeUnsafe: decodeUnsafe,
+    decode: decode
+  }
+}
 
-    // 24.1.1 Abstract Operations For ArrayBuffer Objects
-    // 24.1.1.1 AllocateArrayBuffer( constructor, byteLength )
-    // 24.1.1.2 IsDetachedBuffer( arrayBuffer )
-    // 24.1.1.3 DetachArrayBuffer( arrayBuffer )
-    // 24.1.1.4 CloneArrayBuffer( srcBuffer, srcByteOffset [, cloneConstructor] )
-    // 24.1.1.5 GetValueFromBuffer ( arrayBuffer, byteIndex, type, isLittleEndian )
-    // 24.1.1.6 SetValueInBuffer ( arrayBuffer, byteIndex, type, value, isLittleEndian )
-    // 24.1.2 The ArrayBuffer Constructor
-    // 24.1.2.1 ArrayBuffer( length )
-    // 24.1.3 Properties of the ArrayBuffer Constructor
+},{"safe-buffer":128}],36:[function(require,module,exports){
+'use strict'
+let ALPHABET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l'
 
-    // 24.1.3.1 ArrayBuffer.isView ( arg )
-    define(
-      ArrayBuffer, 'isView',
-      function isView(arg) {
-        if (Type(arg) !== 'object') return false;
-        if ('buffer' in arg && arg.buffer instanceof ArrayBuffer) return true;
-        return false;
-      });
+// pre-compute lookup table
+let ALPHABET_MAP = {}
+for (let z = 0; z < ALPHABET.length; z++) {
+  let x = ALPHABET.charAt(z)
 
-    // 24.1.3.2 ArrayBuffer.prototype
-    // 24.1.3.3 get ArrayBuffer [ @@species ]
-    // 24.1.4 Properties of the ArrayBuffer Prototype Object
-    // 24.1.4.1 get ArrayBuffer.prototype.byteLength
-    // 24.1.4.2 ArrayBuffer.prototype.constructor
-    // 24.1.4.3 ArrayBuffer.prototype.slice ( start , end)
+  if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
+  ALPHABET_MAP[x] = z
+}
 
-    // 24.1.4.4 ArrayBuffer.prototype [ @@toStringTag ]
-    define(ArrayBuffer.prototype, $$toStringTag, 'ArrayBuffer');
+function polymodStep (pre) {
+  let b = pre >> 25
+  return ((pre & 0x1FFFFFF) << 5) ^
+    (-((b >> 0) & 1) & 0x3b6a57b2) ^
+    (-((b >> 1) & 1) & 0x26508e6d) ^
+    (-((b >> 2) & 1) & 0x1ea119fa) ^
+    (-((b >> 3) & 1) & 0x3d4233dd) ^
+    (-((b >> 4) & 1) & 0x2a1462b3)
+}
 
-    // 24.1.5 Properties of the ArrayBuffer Instances
-  }());
+function prefixChk (prefix) {
+  let chk = 1
+  for (let i = 0; i < prefix.length; ++i) {
+    let c = prefix.charCodeAt(i)
+    if (c < 33 || c > 126) throw new Error('Invalid prefix (' + prefix + ')')
 
-  // ---------------------------------------
-  // 24.2 DataView Objects
-  // ---------------------------------------
+    chk = polymodStep(chk) ^ (c >> 5)
+  }
+  chk = polymodStep(chk)
 
-  // See typedarray.js for TypedArray polyfill
+  for (let i = 0; i < prefix.length; ++i) {
+    let v = prefix.charCodeAt(i)
+    chk = polymodStep(chk) ^ (v & 0x1f)
+  }
+  return chk
+}
 
-  (function() {
-    if (!('DataView' in global))
-      return;
+function encode (prefix, words) {
+  // too long?
+  if ((prefix.length + 7 + words.length) > 90) throw new TypeError('Exceeds Bech32 maximum length')
+  prefix = prefix.toLowerCase()
 
-    // 24.2.1 Abstract Operations For DataView Objects
-    // 24.2.1.1 GetViewValue(view, requestIndex, isLittleEndian, type)
-    // 24.2.1.2 SetViewValue(view, requestIndex, isLittleEndian, type, value)
-    // 24.2.2 The DataView Constructor
-    // 24.2.2.1 DataView (buffer [ , byteOffset [ , byteLength ] ] )
-    // 24.2.3 Properties of the DataView Constructor
-    // 24.2.3.1 DataView.prototype
-    // 24.2.4 Properties of the DataView Prototype Object
-    // 24.2.4.1 get DataView.prototype.buffer
-    // 24.2.4.2 get DataView.prototype.byteLength
-    // 24.2.4.3 get DataView.prototype.byteOffset
-    // 24.2.4.4 DataView.prototype.constructor
-    // 24.2.4.5 DataView.prototype.getFloat32 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.6 DataView.prototype.getFloat64 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.7 DataView.prototype.getInt8 ( byteOffset )
-    // 24.2.4.8 DataView.prototype.getInt16 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.9 DataView.prototype.getInt32 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.10 DataView.prototype.getUint8 ( byteOffset )
-    // 24.2.4.11 DataView.prototype.getUint16 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.12 DataView.prototype.getUint32 ( byteOffset [ , littleEndian ] )
-    // 24.2.4.13 DataView.prototype.setFloat32 ( byteOffset, value [ , littleEndian ] )
-    // 24.2.4.14 DataView.prototype.setFloat64 ( byteOffset, value [ , littleEndian ] )
-    // 24.2.4.15 DataView.prototype.setInt8 ( byteOffset, value )
-    // 24.2.4.16 DataView.prototype.setInt16 ( byteOffset, value [ , littleEndian ] )
-    // 24.2.4.17 DataView.prototype.setInt32 ( byteOffset, value [ , littleEndian ] )
-    // 24.2.4.18 DataView.prototype.setUint8 ( byteOffset, value )
-    // 24.2.4.19 DataView.prototype.setUint16 ( byteOffset, value [ , littleEndian ] )
-    // 24.2.4.20 DataView.prototype.setUint32 ( byteOffset, value [ , littleEndian ] )
+  // determine chk mod
+  let chk = prefixChk(prefix)
+  let result = prefix + '1'
+  for (let i = 0; i < words.length; ++i) {
+    let x = words[i]
+    if ((x >> 5) !== 0) throw new Error('Non 5-bit word')
 
-    // 24.2.4.21 DataView.prototype[ @@toStringTag ]
-    define(DataView.prototype, $$toStringTag, 'DataView');
+    chk = polymodStep(chk) ^ x
+    result += ALPHABET.charAt(x)
+  }
 
-    // 24.2.5 Properties of DataView Instances
-  }());
+  for (let i = 0; i < 6; ++i) {
+    chk = polymodStep(chk)
+  }
+  chk ^= 1
 
-  // ---------------------------------------
-  // 24.3 The JSON Object
-  // ---------------------------------------
+  for (let i = 0; i < 6; ++i) {
+    let v = (chk >> ((5 - i) * 5)) & 0x1f
+    result += ALPHABET.charAt(v)
+  }
 
-  // 24.3.1 JSON.parse ( text [ , reviver ] )
-  // 24.3.2 JSON.stringify ( value [ , replacer [ , space ] ] )
-  // 24.3.3 JSON [ @@toStringTag ]
-  define(JSON, $$toStringTag, 'JSON');
+  return result
+}
 
-  // ---------------------------------------
-  // 25.1 Iteration
-  // ---------------------------------------
+function decode (str) {
+  if (str.length < 8) throw new TypeError(str + ' too short')
+  if (str.length > 90) throw new TypeError(str + ' too long')
 
-  // 25.1.1 Common Iteration Interfaces
-  // 25.1.1.1 The Iterable Interface
-  // 25.1.1.2 The Iterator Interface
-  // 25.1.1.3 The IteratorResult Interface
+  // don't allow mixed case
+  let lowered = str.toLowerCase()
+  let uppered = str.toUpperCase()
+  if (str !== lowered && str !== uppered) throw new Error('Mixed-case string ' + str)
+  str = lowered
 
-  // 25.1.2 The %IteratorPrototype% Object
-  // Defined earlier, so other prototypes can reference it.
-  // 25.1.2.1 %IteratorPrototype% [ @@iterator ] ( )
-  define($IteratorPrototype$, $$iterator, function() {
-    return this;
-  });
+  let split = str.lastIndexOf('1')
+  if (split === 0) throw new Error('Missing prefix for ' + str)
 
+  let prefix = str.slice(0, split)
+  let wordChars = str.slice(split + 1)
+  if (wordChars.length < 6) throw new Error('Data too short')
 
-  // ---------------------------------------
-  // 25.4 Promise Objects
-  // ---------------------------------------
+  let chk = prefixChk(prefix)
+  let words = []
+  for (let i = 0; i < wordChars.length; ++i) {
+    let c = wordChars.charAt(i)
+    let v = ALPHABET_MAP[c]
+    if (v === undefined) throw new Error('Unknown character ' + c)
+    chk = polymodStep(chk) ^ v
 
-  (function() {
-    // 25.4 Promise Objects
+    // not in the checksum?
+    if (i + 6 >= wordChars.length) continue
+    words.push(v)
+  }
 
-    // 25.4.1 Promise Abstract Operations
+  if (chk !== 1) throw new Error('Invalid checksum for ' + str)
+  return { prefix, words }
+}
 
-    // 25.4.1.1 PromiseCapability Records
-    // 25.4.1.1.1 IfAbruptRejectPromise ( value, capability )
+function convert (data, inBits, outBits, pad) {
+  let value = 0
+  let bits = 0
+  let maxV = (1 << outBits) - 1
 
-    function IfAbruptRejectPromise(value, capability) {
-      var rejectResult = capability['[[Reject]]'].call(undefined, value);
-      return capability['[[Promise]]'];
+  let result = []
+  for (let i = 0; i < data.length; ++i) {
+    value = (value << inBits) | data[i]
+    bits += inBits
+
+    while (bits >= outBits) {
+      bits -= outBits
+      result.push((value >> bits) & maxV)
     }
+  }
 
-    // 25.4.1.2 PromiseReaction Records
+  if (pad) {
+    if (bits > 0) {
+      result.push((value << (outBits - bits)) & maxV)
+    }
+  } else {
+    if (bits >= inBits) throw new Error('Excess padding')
+    if ((value << (outBits - bits)) & maxV) throw new Error('Non-zero padding')
+  }
 
-    // 25.4.1.3 CreateResolvingFunctions ( promise )
+  return result
+}
 
-    function CreateResolvingFunctions(promise) {
-      var alreadyResolved = {'[[value]]': false};
-      var resolve = PromiseResolveFunction();
-      set_internal(resolve, '[[Promise]]',  promise);
-      set_internal(resolve, '[[AlreadyResolved]]', alreadyResolved);
-      var reject = PromiseRejectFunction();
-      set_internal(reject, '[[Promise]]', promise);
-      set_internal(reject, '[[AlreadyResolved]]', alreadyResolved);
-      return { '[[Resolve]]': resolve, '[[Reject]]': reject};
-    }
+function toWords (bytes) {
+  return convert(bytes, 8, 5, true)
+}
 
-    // 25.4.1.3.1 Promise Reject Functions
+function fromWords (words) {
+  return convert(words, 5, 8, false)
+}
 
-    function PromiseRejectFunction() {
-      var F = function(reason) {
-        console.assert(Type(F['[[Promise]]']) === 'object');
-        var promise = F['[[Promise]]'];
-        var alreadyResolved = F['[[AlreadyResolved]]'];
-        if (alreadyResolved['[[value]]']) return undefined;
-        set_internal(alreadyResolved, '[[value]]', true);
-        return RejectPromise(promise, reason);
-      };
-      return F;
-    }
+module.exports = { decode, encode, toWords, fromWords }
 
-    // 25.4.1.3.2 Promise Resolve Functions
+},{}],37:[function(require,module,exports){
+// (public) Constructor
+function BigInteger(a, b, c) {
+  if (!(this instanceof BigInteger))
+    return new BigInteger(a, b, c)
 
-    function PromiseResolveFunction() {
-      var F = function(resolution) {
-        console.assert(Type(F['[[Promise]]']) === 'object');
-        var promise = F['[[Promise]]'];
-        var alreadyResolved = F['[[AlreadyResolved]]'];
-        if (alreadyResolved['[[value]]']) return undefined;
-        set_internal(alreadyResolved, '[[value]]', true);
+  if (a != null) {
+    if ("number" == typeof a) this.fromNumber(a, b, c)
+    else if (b == null && "string" != typeof a) this.fromString(a, 256)
+    else this.fromString(a, b)
+  }
+}
 
-        if (SameValue(resolution, promise))  {
-          var selfResolutionError = TypeError();
-          return RejectPromise(promise, selfResolutionError);
-        }
-        if (Type(resolution) !== 'object')
-          return FulfillPromise(promise, resolution);
-        try {
-          var then = resolution['then'];
-        } catch(then) {
-          return RejectPromise(promise, then);
-        }
-        if (!IsCallable(then))
-          return FulfillPromise(promise, resolution);
-        EnqueueJob('PromiseJobs', PromiseResolveThenableJob, [promise, resolution, then]);
-        return undefined;
-      };
-      return F;
-    }
+var proto = BigInteger.prototype
 
-    // 25.4.1.4 FulfillPromise ( promise, value )
+// duck-typed isBigInteger
+proto.__bigi = require('../package.json').version
+BigInteger.isBigInteger = function (obj, check_ver) {
+  return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+}
 
-    function FulfillPromise(promise, value) {
-      console.assert(promise['[[PromiseState]]'] === 'pending');
-      var reactions = promise['[[PromiseFulfillReactions]]'];
-      set_internal(promise, '[[PromiseResult]]', value);
-      set_internal(promise, '[[PromiseFulfillReactions]]', undefined);
-      set_internal(promise, '[[PromiseRejectReactions]]', undefined);
-      set_internal(promise, '[[PromiseState]]', 'fulfilled');
-      return TriggerPromiseReactions(reactions, value);
-    }
+// Bits per digit
+var dbits
 
-    // 25.4.1.5 NewPromiseCapability ( C )
+// am: Compute w_j += (x*this_i), propagate carries,
+// c is initial carry, returns final carry.
+// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
+// We need to select the fastest one that works in this environment.
 
-    function NewPromiseCapability(c) {
-      // To keep Promise hermetic, this doesn't look much like the spec.
-      return CreatePromiseCapabilityRecord(undefined, c);
-    }
+// am1: use a single mult and divide to get the high bits,
+// max digit bits should be 26 because
+// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
+function am1(i, x, w, j, c, n) {
+  while (--n >= 0) {
+    var v = x * this[i++] + w[j] + c
+    c = Math.floor(v / 0x4000000)
+    w[j++] = v & 0x3ffffff
+  }
+  return c
+}
+// am2 avoids a big mult-and-extract completely.
+// Max digit bits should be <= 30 because we do bitwise ops
+// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
+function am2(i, x, w, j, c, n) {
+  var xl = x & 0x7fff,
+    xh = x >> 15
+  while (--n >= 0) {
+    var l = this[i] & 0x7fff
+    var h = this[i++] >> 15
+    var m = xh * l + h * xl
+    l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff)
+    c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30)
+    w[j++] = l & 0x3fffffff
+  }
+  return c
+}
+// Alternately, set max digit bits to 28 since some
+// browsers slow down when dealing with 32-bit numbers.
+function am3(i, x, w, j, c, n) {
+  var xl = x & 0x3fff,
+    xh = x >> 14
+  while (--n >= 0) {
+    var l = this[i] & 0x3fff
+    var h = this[i++] >> 14
+    var m = xh * l + h * xl
+    l = xl * l + ((m & 0x3fff) << 14) + w[j] + c
+    c = (l >> 28) + (m >> 14) + xh * h
+    w[j++] = l & 0xfffffff
+  }
+  return c
+}
 
-    // 25.4.1.5.1 CreatePromiseCapabilityRecord ( promise, constructor )
+// wtf?
+BigInteger.prototype.am = am1
+dbits = 26
 
-    function CreatePromiseCapabilityRecord(promise, constructor) {
-      // To keep Promise hermetic, this doesn't look much like the spec.
-      console.assert(IsConstructor(constructor));
-      var promiseCapability = {};
-      set_internal(promiseCapability, '[[Promise]]', promise);
-      set_internal(promiseCapability, '[[Resolve]]', undefined);
-      set_internal(promiseCapability, '[[Reject]]', undefined);
-      var executor = GetCapabilitiesExecutor();
-      set_internal(executor, '[[Capability]]', promiseCapability);
+BigInteger.prototype.DB = dbits
+BigInteger.prototype.DM = ((1 << dbits) - 1)
+var DV = BigInteger.prototype.DV = (1 << dbits)
 
-      // NOTE: Differs from spec; object is constructed here
-      var constructorResult = promise = new constructor(executor);
-      set_internal(promiseCapability, '[[Promise]]', promise);
+var BI_FP = 52
+BigInteger.prototype.FV = Math.pow(2, BI_FP)
+BigInteger.prototype.F1 = BI_FP - dbits
+BigInteger.prototype.F2 = 2 * dbits - BI_FP
 
-      if (!IsCallable(promiseCapability['[[Resolve]]'])) throw TypeError();
-      if (!IsCallable(promiseCapability['[[Reject]]'])) throw TypeError();
-      if (Type(constructorResult) === 'object' && !SameValue(promise, constructorResult)) throw TypeError();
-      return promiseCapability;
-    }
+// Digit conversions
+var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
+var BI_RC = new Array()
+var rr, vv
+rr = "0".charCodeAt(0)
+for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
+rr = "a".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+rr = "A".charCodeAt(0)
+for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
 
-    // 25.4.1.5.2 GetCapabilitiesExecutor Functions
+function int2char(n) {
+  return BI_RM.charAt(n)
+}
 
-    function GetCapabilitiesExecutor() {
-      var F = function(resolve, reject) {
-        console.assert(F['[[Capability]]']);
-        var promiseCapability = F['[[Capability]]'];
-        if (promiseCapability['[[Resolve]]'] !== undefined) throw TypeError();
-        if (promiseCapability['[[Reject]]'] !== undefined) throw TypeError();
-        set_internal(promiseCapability, '[[Resolve]]', resolve);
-        set_internal(promiseCapability, '[[Reject]]', reject);
-        return undefined;
-      };
-      return F;
-    }
+function intAt(s, i) {
+  var c = BI_RC[s.charCodeAt(i)]
+  return (c == null) ? -1 : c
+}
 
-    // 25.4.1.6 IsPromise ( x )
+// (protected) copy this to r
+function bnpCopyTo(r) {
+  for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]
+  r.t = this.t
+  r.s = this.s
+}
 
-    function IsPromise(x) {
-      if (Type(x) !== 'object') return false;
-      if (!('[[PromiseState]]' in x)) return false;
-      if (x['[[PromiseState]]'] === undefined) return false;
-      return true;
-    }
+// (protected) set from integer value x, -DV <= x < DV
+function bnpFromInt(x) {
+  this.t = 1
+  this.s = (x < 0) ? -1 : 0
+  if (x > 0) this[0] = x
+  else if (x < -1) this[0] = x + DV
+  else this.t = 0
+}
 
-    // 25.4.1.7 RejectPromise ( promise, reason )
+// return bigint initialized to value
+function nbv(i) {
+  var r = new BigInteger()
+  r.fromInt(i)
+  return r
+}
 
-    function RejectPromise(promise, reason) {
-      console.assert(promise['[[PromiseState]]'] === 'pending');
-      var reactions = promise['[[PromiseRejectReactions]]'];
-      set_internal(promise, '[[PromiseResult]]', reason);
-      set_internal(promise, '[[PromiseFulfillReactions]]', undefined);
-      set_internal(promise, '[[PromiseRejectReactions]]', undefined);
-      set_internal(promise, '[[PromiseState]]', 'rejected');
-      return TriggerPromiseReactions(reactions, reason);
+// (protected) set from string and radix
+function bnpFromString(s, b) {
+  var self = this
+
+  var k
+  if (b == 16) k = 4
+  else if (b == 8) k = 3
+  else if (b == 256) k = 8; // byte array
+  else if (b == 2) k = 1
+  else if (b == 32) k = 5
+  else if (b == 4) k = 2
+  else {
+    self.fromRadix(s, b)
+    return
+  }
+  self.t = 0
+  self.s = 0
+  var i = s.length,
+    mi = false,
+    sh = 0
+  while (--i >= 0) {
+    var x = (k == 8) ? s[i] & 0xff : intAt(s, i)
+    if (x < 0) {
+      if (s.charAt(i) == "-") mi = true
+      continue
     }
+    mi = false
+    if (sh == 0)
+      self[self.t++] = x
+    else if (sh + k > self.DB) {
+      self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh
+      self[self.t++] = (x >> (self.DB - sh))
+    } else
+      self[self.t - 1] |= x << sh
+    sh += k
+    if (sh >= self.DB) sh -= self.DB
+  }
+  if (k == 8 && (s[0] & 0x80) != 0) {
+    self.s = -1
+    if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+  }
+  self.clamp()
+  if (mi) BigInteger.ZERO.subTo(self, self)
+}
 
-    // 25.4.1.8 TriggerPromiseReactions ( reactions, argument )
+// (protected) clamp off excess high words
+function bnpClamp() {
+  var c = this.s & this.DM
+  while (this.t > 0 && this[this.t - 1] == c)--this.t
+}
 
-    function TriggerPromiseReactions(reactions, argument) {
-      for (var i = 0, len = reactions.length; i < len; ++i)
-        EnqueueJob('PromiseJobs', PromiseReactionJob, [reactions[i], argument]);
-      return undefined;
+// (public) return string representation in given radix
+function bnToString(b) {
+  var self = this
+  if (self.s < 0) return "-" + self.negate()
+    .toString(b)
+  var k
+  if (b == 16) k = 4
+  else if (b == 8) k = 3
+  else if (b == 2) k = 1
+  else if (b == 32) k = 5
+  else if (b == 4) k = 2
+  else return self.toRadix(b)
+  var km = (1 << k) - 1,
+    d, m = false,
+    r = "",
+    i = self.t
+  var p = self.DB - (i * self.DB) % k
+  if (i-- > 0) {
+    if (p < self.DB && (d = self[i] >> p) > 0) {
+      m = true
+      r = int2char(d)
+    }
+    while (i >= 0) {
+      if (p < k) {
+        d = (self[i] & ((1 << p) - 1)) << (k - p)
+        d |= self[--i] >> (p += self.DB - k)
+      } else {
+        d = (self[i] >> (p -= k)) & km
+        if (p <= 0) {
+          p += self.DB
+          --i
+        }
+      }
+      if (d > 0) m = true
+      if (m) r += int2char(d)
     }
+  }
+  return m ? r : "0"
+}
 
-    // 25.4.2 Promise Jobs
+// (public) -this
+function bnNegate() {
+  var r = new BigInteger()
+  BigInteger.ZERO.subTo(this, r)
+  return r
+}
 
-    // 25.4.2.1 PromiseReactionJob ( reaction, argument )
+// (public) |this|
+function bnAbs() {
+  return (this.s < 0) ? this.negate() : this
+}
 
-    function PromiseReactionJob(reaction, argument) {
-      var promiseCapability = reaction['[[Capabilities]]'];
-      var handler = reaction['[[Handler]]'];
-      var handlerResult, status;
-      try {
-        if (handler === 'Identity') handlerResult = argument;
-        else if (handler === 'Thrower') throw argument;
-        else handlerResult = handler.call(undefined, argument);
-      } catch (handlerResult) {
-        status = promiseCapability['[[Reject]]'].call(undefined, handlerResult);
-        NextJob(status); return;
-      }
-      status = promiseCapability['[[Resolve]]'].call(undefined, handlerResult);
-      NextJob(status);
-    }
+// (public) return + if this > a, - if this < a, 0 if equal
+function bnCompareTo(a) {
+  var r = this.s - a.s
+  if (r != 0) return r
+  var i = this.t
+  r = i - a.t
+  if (r != 0) return (this.s < 0) ? -r : r
+  while (--i >= 0)
+    if ((r = this[i] - a[i]) != 0) return r
+  return 0
+}
 
-    // 25.4.2.2 PromiseResolveThenableJob ( promiseToResolve, thenable, then)
+// returns bit length of the integer x
+function nbits(x) {
+  var r = 1,
+    t
+  if ((t = x >>> 16) != 0) {
+    x = t
+    r += 16
+  }
+  if ((t = x >> 8) != 0) {
+    x = t
+    r += 8
+  }
+  if ((t = x >> 4) != 0) {
+    x = t
+    r += 4
+  }
+  if ((t = x >> 2) != 0) {
+    x = t
+    r += 2
+  }
+  if ((t = x >> 1) != 0) {
+    x = t
+    r += 1
+  }
+  return r
+}
 
-    function PromiseResolveThenableJob(promiseToResolve, thenable, then) {
-      // SPEC BUG: promise vs. promiseToResolve
-      var resolvingFunctions = CreateResolvingFunctions(promiseToResolve);
-      try {
-        var thenCallResult = then.call(thenable, resolvingFunctions['[[Resolve]]'],
-                                       resolvingFunctions['[[Reject]]']);
-      } catch (thenCallResult) {
-        var status = resolvingFunctions['[[Reject]]'].call(undefined, thenCallResult);
-        NextJob(status); return;
-      }
-      NextJob(thenCallResult);
-    }
+// (public) return the number of bits in "this"
+function bnBitLength() {
+  if (this.t <= 0) return 0
+  return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM))
+}
 
-    // 25.4.3 The Promise Constructor
+// (public) return the number of bytes in "this"
+function bnByteLength() {
+  return this.bitLength() >> 3
+}
 
-    // 25.4.3.1 Promise ( executor )
+// (protected) r = this << n*DB
+function bnpDLShiftTo(n, r) {
+  var i
+  for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]
+  for (i = n - 1; i >= 0; --i) r[i] = 0
+  r.t = this.t + n
+  r.s = this.s
+}
 
-    function Promise(executor) {
-      var config = { configurable: false, enumerable: false, writable: true, value: undefined };
-      Object.defineProperty(this, '[[PromiseState]]', config);
-      Object.defineProperty(this, '[[PromiseConstructor]]', config);
-      Object.defineProperty(this, '[[PromiseResult]]', config);
-      Object.defineProperty(this, '[[PromiseFulfillReactions]]', config);
-      Object.defineProperty(this, '[[PromiseRejectReactions]]', config);
+// (protected) r = this >> n*DB
+function bnpDRShiftTo(n, r) {
+  for (var i = n; i < this.t; ++i) r[i - n] = this[i]
+  r.t = Math.max(this.t - n, 0)
+  r.s = this.s
+}
 
-      var promise = this;
-      if (Type(promise) !== 'object') throw new TypeError();
-      if (!('[[PromiseState]]' in promise)) throw TypeError();
-      if (promise['[[PromiseState]]'] !== undefined) throw TypeError();
-      if (!IsCallable(executor)) throw TypeError();
+// (protected) r = this << n
+function bnpLShiftTo(n, r) {
+  var self = this
+  var bs = n % self.DB
+  var cbs = self.DB - bs
+  var bm = (1 << cbs) - 1
+  var ds = Math.floor(n / self.DB),
+    c = (self.s << bs) & self.DM,
+    i
+  for (i = self.t - 1; i >= 0; --i) {
+    r[i + ds + 1] = (self[i] >> cbs) | c
+    c = (self[i] & bm) << bs
+  }
+  for (i = ds - 1; i >= 0; --i) r[i] = 0
+  r[ds] = c
+  r.t = self.t + ds + 1
+  r.s = self.s
+  r.clamp()
+}
 
-      set_internal(promise, '[[PromiseConstructor]]', Promise);
+// (protected) r = this >> n
+function bnpRShiftTo(n, r) {
+  var self = this
+  r.s = self.s
+  var ds = Math.floor(n / self.DB)
+  if (ds >= self.t) {
+    r.t = 0
+    return
+  }
+  var bs = n % self.DB
+  var cbs = self.DB - bs
+  var bm = (1 << bs) - 1
+  r[0] = self[ds] >> bs
+  for (var i = ds + 1; i < self.t; ++i) {
+    r[i - ds - 1] |= (self[i] & bm) << cbs
+    r[i - ds] = self[i] >> bs
+  }
+  if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
+  r.t = self.t - ds
+  r.clamp()
+}
 
-      return InitializePromise(promise, executor);
+// (protected) r = this - a
+function bnpSubTo(a, r) {
+  var self = this
+  var i = 0,
+    c = 0,
+    m = Math.min(a.t, self.t)
+  while (i < m) {
+    c += self[i] - a[i]
+    r[i++] = c & self.DM
+    c >>= self.DB
+  }
+  if (a.t < self.t) {
+    c -= a.s
+    while (i < self.t) {
+      c += self[i]
+      r[i++] = c & self.DM
+      c >>= self.DB
+    }
+    c += self.s
+  } else {
+    c += self.s
+    while (i < a.t) {
+      c -= a[i]
+      r[i++] = c & self.DM
+      c >>= self.DB
     }
+    c -= a.s
+  }
+  r.s = (c < 0) ? -1 : 0
+  if (c < -1) r[i++] = self.DV + c
+  else if (c > 0) r[i++] = c
+  r.t = i
+  r.clamp()
+}
 
-    // 25.4.3.1.1 InitializePromise ( promise, executor )
+// (protected) r = this * a, r != this,a (HAC 14.12)
+// "this" should be the larger one if appropriate.
+function bnpMultiplyTo(a, r) {
+  var x = this.abs(),
+    y = a.abs()
+  var i = x.t
+  r.t = i + y.t
+  while (--i >= 0) r[i] = 0
+  for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
+  r.s = 0
+  r.clamp()
+  if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
+}
 
-    function InitializePromise(promise, executor) {
-      console.assert('[[PromiseState]]' in promise);
-      console.assert(IsCallable(executor));
-      set_internal(promise, '[[PromiseState]]', 'pending');
-      set_internal(promise, '[[PromiseFulfillReactions]]', []);
-      set_internal(promise, '[[PromiseRejectReactions]]', []);
-      var resolvingFunctions = CreateResolvingFunctions(promise);
-      try {
-        var completion = executor.call(undefined, resolvingFunctions['[[Resolve]]'],
-                                       resolvingFunctions['[[Reject]]']);
-      } catch (completion) {
-        var status = resolvingFunctions['[[Reject]]'].call(undefined, completion);
-      }
-      return promise;
+// (protected) r = this^2, r != this (HAC 14.16)
+function bnpSquareTo(r) {
+  var x = this.abs()
+  var i = r.t = 2 * x.t
+  while (--i >= 0) r[i] = 0
+  for (i = 0; i < x.t - 1; ++i) {
+    var c = x.am(i, x[i], r, 2 * i, 0, 1)
+    if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
+      r[i + x.t] -= x.DV
+      r[i + x.t + 1] = 1
     }
+  }
+  if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
+  r.s = 0
+  r.clamp()
+}
 
-    // 25.4.4 Properties of the Promise Constructor
-    // 25.4.4.1 Promise.all ( iterable )
+// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
+// r != q, this != m.  q or r may be null.
+function bnpDivRemTo(m, q, r) {
+  var self = this
+  var pm = m.abs()
+  if (pm.t <= 0) return
+  var pt = self.abs()
+  if (pt.t < pm.t) {
+    if (q != null) q.fromInt(0)
+    if (r != null) self.copyTo(r)
+    return
+  }
+  if (r == null) r = new BigInteger()
+  var y = new BigInteger(),
+    ts = self.s,
+    ms = m.s
+  var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
+  if (nsh > 0) {
+    pm.lShiftTo(nsh, y)
+    pt.lShiftTo(nsh, r)
+  } else {
+    pm.copyTo(y)
+    pt.copyTo(r)
+  }
+  var ys = y.t
+  var y0 = y[ys - 1]
+  if (y0 == 0) return
+  var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0)
+  var d1 = self.FV / yt,
+    d2 = (1 << self.F1) / yt,
+    e = 1 << self.F2
+  var i = r.t,
+    j = i - ys,
+    t = (q == null) ? new BigInteger() : q
+  y.dlShiftTo(j, t)
+  if (r.compareTo(t) >= 0) {
+    r[r.t++] = 1
+    r.subTo(t, r)
+  }
+  BigInteger.ONE.dlShiftTo(ys, t)
+  t.subTo(y, y); // "negative" y so we can replace sub with am later
+  while (y.t < ys) y[y.t++] = 0
+  while (--j >= 0) {
+    // Estimate quotient digit
+    var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2)
+    if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out
+      y.dlShiftTo(j, t)
+      r.subTo(t, r)
+      while (r[i] < --qd) r.subTo(t, r)
+    }
+  }
+  if (q != null) {
+    r.drShiftTo(ys, q)
+    if (ts != ms) BigInteger.ZERO.subTo(q, q)
+  }
+  r.t = ys
+  r.clamp()
+  if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
+  if (ts < 0) BigInteger.ZERO.subTo(r, r)
+}
 
-    define(Promise, 'all', function all(iterable) {
-      var c = strict(this);
-      var promiseCapability = NewPromiseCapability(c);
-      try {
-        var iterator = GetIterator(iterable);
-      } catch (value) {
-        promiseCapability['[[Reject]]'].call(undefined, value);
-        return promiseCapability['[[Promise]]'];
-      }
-      var values = [];
-      var remainingElementsCount = { value: 1 };
-      var index = 0;
-      while (true) {
-        try {
-          var next = IteratorStep(iterator);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        if (!next) {
-          remainingElementsCount.value -= 1;
-          if (remainingElementsCount.value === 0) {
-            var resolveResult = promiseCapability['[[Resolve]]'].apply(undefined, values);
+// (public) this mod a
+function bnMod(a) {
+  var r = new BigInteger()
+  this.abs()
+    .divRemTo(a, null, r)
+  if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
+  return r
+}
 
+// Modular reduction using "classic" algorithm
+function Classic(m) {
+  this.m = m
+}
 
-          }
-          return promiseCapability['[[Promise]]'];
-        }
-        try {
-          var nextValue = IteratorValue(next);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        try {
-          var nextPromise = c.resolve(nextValue);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        var resolveElement = PromiseAllResolveElementFunction();
-        set_internal(resolveElement, '[[AlreadyCalled]]', { value: false });
-        set_internal(resolveElement, '[[Index]]', index);
-        set_internal(resolveElement, '[[Values]]', values);
-        set_internal(resolveElement, '[[Capabilities]]', promiseCapability);
-        set_internal(resolveElement, '[[RemainingElements]]', remainingElementsCount);
-        remainingElementsCount.value += 1;
-        try {
-          var result = nextPromise.then(resolveElement, promiseCapability['[[Reject]]']);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        index += 1;
-      }
-    });
+function cConvert(x) {
+  if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
+  else return x
+}
 
-    // 25.4.4.1.1 Promise.all Resolve Element Functions
+function cRevert(x) {
+  return x
+}
 
-    function PromiseAllResolveElementFunction() {
-      var F = function(x) {
-        var alreadyCalled = F['[[AlreadyCalled]]'];
-        if (alreadyCalled.value) return undefined;
-        alreadyCalled.value = true;
-        var index = F['[[Index]]'];
-        var values = F['[[Values]]'];
-        var promiseCapability = F['[[Capabilities]]'];
-        var remainingElementsCount = F['[[RemainingElements]]'];
-        try {
-          values[index] = x;
-        } catch (result) {
-          promiseCapability['[[Reject]]'].call(undefined, result);
-          return promiseCapability['[[Promise]]'];
-        }
-        remainingElementsCount.value -= 1;
-        if (remainingElementsCount.value === 0)
-          return promiseCapability['[[Resolve]]'].call(undefined, values);
-        return undefined;
-      };
-      return F;
-    }
+function cReduce(x) {
+  x.divRemTo(this.m, null, x)
+}
 
-    // 25.4.4.2 Promise.prototype
+function cMulTo(x, y, r) {
+  x.multiplyTo(y, r)
+  this.reduce(r)
+}
 
-    Promise.prototype = {};
+function cSqrTo(x, r) {
+  x.squareTo(r)
+  this.reduce(r)
+}
 
-    // 25.4.4.3 Promise.race ( iterable )
+Classic.prototype.convert = cConvert
+Classic.prototype.revert = cRevert
+Classic.prototype.reduce = cReduce
+Classic.prototype.mulTo = cMulTo
+Classic.prototype.sqrTo = cSqrTo
 
-    define(Promise, 'race', function race(iterable) {
-      var c = strict(this);
-      var promiseCapability = NewPromiseCapability(c);
-      try {
-        var iterator = GetIterator(iterable);
-      } catch (value) {
-        promiseCapability['[[Reject]]'].call(undefined, value);
-        return promiseCapability['[[Promise]]'];
-      }
-      while (true) {
-        try {
-          var next = IteratorStep(iterator);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        if (!next) return promiseCapability['[[Promise]]'];
-        try {
-          var nextValue = IteratorValue(next);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        try {
-          var nextPromise = c.resolve(nextValue);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-        try {
-          nextPromise.then(promiseCapability['[[Resolve]]'], promiseCapability['[[Reject]]']);
-        } catch (value) {
-          promiseCapability['[[Reject]]'].call(undefined, value);
-          return promiseCapability['[[Promise]]'];
-        }
-      }
-    });
+// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
+// justification:
+//         xy == 1 (mod m)
+//         xy =  1+km
+//   xy(2-xy) = (1+km)(1-km)
+// x[y(2-xy)] = 1-k^2m^2
+// x[y(2-xy)] == 1 (mod m^2)
+// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
+// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
+// JS multiply "overflows" differently from C/C++, so care is needed here.
+function bnpInvDigit() {
+  if (this.t < 1) return 0
+  var x = this[0]
+  if ((x & 1) == 0) return 0
+  var y = x & 3; // y == 1/x mod 2^2
+  y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4
+  y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8
+  y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16
+  // last step - calculate inverse mod DV directly
+  // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
+  y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits
+  // we really want the negative inverse, and -DV < y < DV
+  return (y > 0) ? this.DV - y : -y
+}
 
-    // 25.4.4.4 Promise.reject ( r )
+// Montgomery reduction
+function Montgomery(m) {
+  this.m = m
+  this.mp = m.invDigit()
+  this.mpl = this.mp & 0x7fff
+  this.mph = this.mp >> 15
+  this.um = (1 << (m.DB - 15)) - 1
+  this.mt2 = 2 * m.t
+}
 
-    define(Promise, 'reject', function reject(r) {
-      var c = strict(this);
-      var promiseCapability = NewPromiseCapability(c);
-      var rejectResult = promiseCapability['[[Reject]]'].call(undefined, r);
-      return promiseCapability['[[Promise]]'];
-    });
+// xR mod m
+function montConvert(x) {
+  var r = new BigInteger()
+  x.abs()
+    .dlShiftTo(this.m.t, r)
+  r.divRemTo(this.m, null, r)
+  if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
+  return r
+}
 
-    // 25.4.4.5 Promise.resolve ( x )
+// x/R mod m
+function montRevert(x) {
+  var r = new BigInteger()
+  x.copyTo(r)
+  this.reduce(r)
+  return r
+}
 
-    define(Promise, 'resolve', function resolve(x) {
-      var c = strict(this);
-      if (IsPromise(x)) {
-        var constructor = x['[[PromiseConstructor]]'];
-        if (SameValue(constructor, c)) return x;
-      }
-      var promiseCapability = NewPromiseCapability(c);
-      var resolveResult = promiseCapability['[[Resolve]]'].call(undefined, x);
-      return promiseCapability['[[Promise]]'];
-    });
+// x = x/R mod m (HAC 14.32)
+function montReduce(x) {
+  while (x.t <= this.mt2) // pad x so am has enough room later
+    x[x.t++] = 0
+  for (var i = 0; i < this.m.t; ++i) {
+    // faster way of calculating u0 = x[i]*mp mod DV
+    var j = x[i] & 0x7fff
+    var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
+    // use am to combine the multiply-shift-add into one call
+    j = i + this.m.t
+    x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
+    // propagate carry
+    while (x[j] >= x.DV) {
+      x[j] -= x.DV
+      x[++j]++
+    }
+  }
+  x.clamp()
+  x.drShiftTo(this.m.t, x)
+  if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
+}
 
-    // 25.4.4.6 Promise [ @@create ] ( )
-    // 25.4.4.6.1 AllocatePromise ( constructor )
-    // 25.4.5 Properties of the Promise Prototype Object
-    // 25.4.5.1 Promise.prototype.catch ( onRejected )
+// r = "x^2/R mod m"; x != r
+function montSqrTo(x, r) {
+  x.squareTo(r)
+  this.reduce(r)
+}
 
-    define(Promise.prototype, 'catch', function catch_(onRejected) {
-      var promise = this;
-      return promise.then(undefined, onRejected);
-    });
+// r = "xy/R mod m"; x,y != r
+function montMulTo(x, y, r) {
+  x.multiplyTo(y, r)
+  this.reduce(r)
+}
 
-    // 25.4.5.2 Promise.prototype.constructor
+Montgomery.prototype.convert = montConvert
+Montgomery.prototype.revert = montRevert
+Montgomery.prototype.reduce = montReduce
+Montgomery.prototype.mulTo = montMulTo
+Montgomery.prototype.sqrTo = montSqrTo
 
-    Promise.prototype.constructor = Promise;
+// (protected) true iff this is even
+function bnpIsEven() {
+  return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+}
 
-    // 25.4.5.3 Promise.prototype.then ( onFulfilled , onRejected )
+// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
+function bnpExp(e, z) {
+  if (e > 0xffffffff || e < 1) return BigInteger.ONE
+  var r = new BigInteger(),
+    r2 = new BigInteger(),
+    g = z.convert(this),
+    i = nbits(e) - 1
+  g.copyTo(r)
+  while (--i >= 0) {
+    z.sqrTo(r, r2)
+    if ((e & (1 << i)) > 0) z.mulTo(r2, g, r)
+    else {
+      var t = r
+      r = r2
+      r2 = t
+    }
+  }
+  return z.revert(r)
+}
 
-    define(Promise.prototype, 'then', function then(onFulfilled, onRejected) {
-      var promise = this;
-      if (!IsPromise(promise)) throw TypeError();
-      if (!IsCallable(onFulfilled)) onFulfilled = 'Identity';
-      if (!IsCallable(onRejected)) onRejected = 'Thrower';
-      var c = promise.constructor;
-      var promiseCapability = NewPromiseCapability(c);
-      var fulfillReaction = { '[[Capabilities]]': promiseCapability,
-                              '[[Handler]]': onFulfilled };
-      var rejectReaction = { '[[Capabilities]]': promiseCapability,
-                             '[[Handler]]': onRejected };
-      if (promise['[[PromiseState]]'] === 'pending') {
-        promise['[[PromiseFulfillReactions]]'].push(fulfillReaction);
-        promise['[[PromiseRejectReactions]]'].push(rejectReaction);
-      } else if (promise['[[PromiseState]]'] === 'fulfilled') {
-        var value = promise['[[PromiseResult]]'];
-        EnqueueJob('PromiseJobs', PromiseReactionJob, [fulfillReaction, value]);
-      } else if (promise['[[PromiseState]]'] === 'rejected') {
-        var reason = promise['[[PromiseResult]]'];
-        EnqueueJob('PromiseJobs', PromiseReactionJob, [rejectReaction, reason]);
-      }
-      return promiseCapability['[[Promise]]'];
-    });
+// (public) this^e % m, 0 <= e < 2^32
+function bnModPowInt(e, m) {
+  var z
+  if (e < 256 || m.isEven()) z = new Classic(m)
+  else z = new Montgomery(m)
+  return this.exp(e, z)
+}
 
-    // 25.4.6 Properties of Promise Instances
+// protected
+proto.copyTo = bnpCopyTo
+proto.fromInt = bnpFromInt
+proto.fromString = bnpFromString
+proto.clamp = bnpClamp
+proto.dlShiftTo = bnpDLShiftTo
+proto.drShiftTo = bnpDRShiftTo
+proto.lShiftTo = bnpLShiftTo
+proto.rShiftTo = bnpRShiftTo
+proto.subTo = bnpSubTo
+proto.multiplyTo = bnpMultiplyTo
+proto.squareTo = bnpSquareTo
+proto.divRemTo = bnpDivRemTo
+proto.invDigit = bnpInvDigit
+proto.isEven = bnpIsEven
+proto.exp = bnpExp
 
-    if (!('Promise' in global) || OVERRIDE_NATIVE_FOR_TESTING)
-      global.Promise = Promise;
+// public
+proto.toString = bnToString
+proto.negate = bnNegate
+proto.abs = bnAbs
+proto.compareTo = bnCompareTo
+proto.bitLength = bnBitLength
+proto.byteLength = bnByteLength
+proto.mod = bnMod
+proto.modPowInt = bnModPowInt
 
-    // Patch early Promise.cast vs. Promise.resolve implementations
-    if ('cast' in global.Promise) global.Promise.resolve = global.Promise.cast;
-  }());
+// (public)
+function bnClone() {
+  var r = new BigInteger()
+  this.copyTo(r)
+  return r
+}
 
-  // 25.4.5.1 Promise.prototype [ @@toStringTag ]
-  define(Promise.prototype, $$toStringTag, 'Promise');
+// (public) return value as integer
+function bnIntValue() {
+  if (this.s < 0) {
+    if (this.t == 1) return this[0] - this.DV
+    else if (this.t == 0) return -1
+  } else if (this.t == 1) return this[0]
+  else if (this.t == 0) return 0
+  // assumes 16 < DB < 32
+  return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]
+}
 
-  // ---------------------------------------
-  // 26 Reflection
-  // ---------------------------------------
+// (public) return value as byte
+function bnByteValue() {
+  return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+}
 
-  (function() {
-    // 26.1 The Reflect Object
-    if (!('Reflect' in global) || OVERRIDE_NATIVE_FOR_TESTING)
-      global.Reflect = {};
+// (public) return value as short (assumes DB>=16)
+function bnShortValue() {
+  return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+}
 
-    // 26.1.1 Reflect.apply ( target, thisArgument, argumentsList )
-    define(
-      Reflect, 'apply',
-      function apply(target, thisArgument, argumentsList) {
-        if (!IsCallable(target)) throw TypeError();
-        return Function.prototype.apply.call(target, thisArgument, argumentsList);
-      });
+// (protected) return x s.t. r^x < DV
+function bnpChunkSize(r) {
+  return Math.floor(Math.LN2 * this.DB / Math.log(r))
+}
 
-    // 26.1.2 Reflect.construct ( target, argumentsList [, newTarget] )
-    define(
-      Reflect, 'construct',
-      function construct(target, argumentsList) {
-        return __cons(target, argumentsList);
-      });
+// (public) 0 if this == 0, 1 if this > 0
+function bnSigNum() {
+  if (this.s < 0) return -1
+  else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0
+  else return 1
+}
 
-    // 26.1.3 Reflect.defineProperty ( target, propertyKey, attributes )
-    define(
-      Reflect, 'defineProperty',
-      function defineProperty(target, propertyKey, attributes) {
-        try {
-          Object.defineProperty(target, propertyKey, attributes);
-          return true;
-        } catch (_) {
-          return false;
-        }
-      });
+// (protected) convert to radix string
+function bnpToRadix(b) {
+  if (b == null) b = 10
+  if (this.signum() == 0 || b < 2 || b > 36) return "0"
+  var cs = this.chunkSize(b)
+  var a = Math.pow(b, cs)
+  var d = nbv(a),
+    y = new BigInteger(),
+    z = new BigInteger(),
+    r = ""
+  this.divRemTo(d, y, z)
+  while (y.signum() > 0) {
+    r = (a + z.intValue())
+      .toString(b)
+      .substr(1) + r
+    y.divRemTo(d, y, z)
+  }
+  return z.intValue()
+    .toString(b) + r
+}
 
-    // 26.1.4 Reflect.deleteProperty ( target, propertyKey )
-    define(
-      Reflect, 'deleteProperty',
-      function deleteProperty(target,name) {
-        try {
-          delete target[name];
-          return !HasOwnProperty(target, name);
-        } catch (_) {
-          return false;
-        }
-      });
+// (protected) convert from radix string
+function bnpFromRadix(s, b) {
+  var self = this
+  self.fromInt(0)
+  if (b == null) b = 10
+  var cs = self.chunkSize(b)
+  var d = Math.pow(b, cs),
+    mi = false,
+    j = 0,
+    w = 0
+  for (var i = 0; i < s.length; ++i) {
+    var x = intAt(s, i)
+    if (x < 0) {
+      if (s.charAt(i) == "-" && self.signum() == 0) mi = true
+      continue
+    }
+    w = b * w + x
+    if (++j >= cs) {
+      self.dMultiply(d)
+      self.dAddOffset(w, 0)
+      j = 0
+      w = 0
+    }
+  }
+  if (j > 0) {
+    self.dMultiply(Math.pow(b, j))
+    self.dAddOffset(w, 0)
+  }
+  if (mi) BigInteger.ZERO.subTo(self, self)
+}
 
-    // 26.1.5 Reflect.enumerate ( target )
-    define(
-      Reflect, 'enumerate',
-      function enumerate(target) {
-        target = ToObject(target);
-        var iterator = Enumerate(target);
-        return iterator;
-      });
+// (protected) alternate constructor
+function bnpFromNumber(a, b, c) {
+  var self = this
+  if ("number" == typeof b) {
+    // new BigInteger(int,int,RNG)
+    if (a < 2) self.fromInt(1)
+    else {
+      self.fromNumber(a, c)
+      if (!self.testBit(a - 1)) // force MSB set
+        self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
+      if (self.isEven()) self.dAddOffset(1, 0); // force odd
+      while (!self.isProbablePrime(b)) {
+        self.dAddOffset(2, 0)
+        if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
+      }
+    }
+  } else {
+    // new BigInteger(int,RNG)
+    var x = new Array(),
+      t = a & 7
+    x.length = (a >> 3) + 1
+    b.nextBytes(x)
+    if (t > 0) x[0] &= ((1 << t) - 1)
+    else x[0] = 0
+    self.fromString(x, 256)
+  }
+}
 
-    // 26.1.6 Reflect.get ( target, propertyKey [ , receiver ])
-    define(
-      Reflect, 'get',
-      function get(target, name, receiver) {
-        target = ToObject(target);
-        name = String(name);
-        receiver = (receiver === undefined) ? target : ToObject(receiver);
-        var desc = getPropertyDescriptor(target, name);
-        if (desc && 'get' in desc)
-          return Function.prototype.call.call(desc['get'], receiver);
-        return target[name];
-      });
+// (public) convert to bigendian byte array
+function bnToByteArray() {
+  var self = this
+  var i = self.t,
+    r = new Array()
+  r[0] = self.s
+  var p = self.DB - (i * self.DB) % 8,
+    d, k = 0
+  if (i-- > 0) {
+    if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p)
+      r[k++] = d | (self.s << (self.DB - p))
+    while (i >= 0) {
+      if (p < 8) {
+        d = (self[i] & ((1 << p) - 1)) << (8 - p)
+        d |= self[--i] >> (p += self.DB - 8)
+      } else {
+        d = (self[i] >> (p -= 8)) & 0xff
+        if (p <= 0) {
+          p += self.DB
+          --i
+        }
+      }
+      if ((d & 0x80) != 0) d |= -256
+      if (k === 0 && (self.s & 0x80) != (d & 0x80))++k
+      if (k > 0 || d != self.s) r[k++] = d
+    }
+  }
+  return r
+}
 
-    // 26.1.7 Reflect.getOwnPropertyDescriptor ( target, propertyKey )
-    define(
-      Reflect, 'getOwnPropertyDescriptor',
-      Object.getOwnPropertyDescriptor);
+function bnEquals(a) {
+  return (this.compareTo(a) == 0)
+}
 
-    // 26.1.8 Reflect.getPrototypeOf ( target )
-    define(
-      Reflect, 'getPrototypeOf',
-      Object.getPrototypeOf);
+function bnMin(a) {
+  return (this.compareTo(a) < 0) ? this : a
+}
 
-    // 26.1.9 Reflect.has ( target, propertyKey )
-    define(
-      Reflect, 'has',
-      function has(target,name) {
-        return String(name) in ToObject(target);
-      });
+function bnMax(a) {
+  return (this.compareTo(a) > 0) ? this : a
+}
 
-    // 26.1.10 Reflect.isExtensible (target)
-    define(
-      Reflect, 'isExtensible',
-      Object.isExtensible);
+// (protected) r = this op a (bitwise)
+function bnpBitwiseTo(a, op, r) {
+  var self = this
+  var i, f, m = Math.min(a.t, self.t)
+  for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
+  if (a.t < self.t) {
+    f = a.s & self.DM
+    for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
+    r.t = self.t
+  } else {
+    f = self.s & self.DM
+    for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
+    r.t = a.t
+  }
+  r.s = op(self.s, a.s)
+  r.clamp()
+}
 
-    // 26.1.11 Reflect.ownKeys ( target )
-    define(
-      Reflect, 'ownKeys',
-      function ownKeys(target) {
-        var obj = ToObject(target);
-        return Object.getOwnPropertyNames(obj);
-      });
+// (public) this & a
+function op_and(x, y) {
+  return x & y
+}
 
-    // 26.1.12 Reflect.preventExtensions ( target )
-    define(
-      Reflect, 'preventExtensions',
-      function preventExtensions(target) {
-        try { Object.preventExtensions(target); return true; } catch (_) { return false; }
-      });
+function bnAnd(a) {
+  var r = new BigInteger()
+  this.bitwiseTo(a, op_and, r)
+  return r
+}
 
-    // 26.1.13 Reflect.set ( target, propertyKey, V [ , receiver ] )
-    define(
-      Reflect, 'set',
-      function set(target, name, value, receiver) {
-        target = ToObject(target);
-        name = String(name);
-        receiver = (receiver === undefined) ? target : ToObject(receiver);
-        var desc = getPropertyDescriptor(target, name);
-        try {
-          if (desc && 'set' in desc)
-            Function.prototype.call.call(desc['set'], receiver, value);
-          else
-            target[name] = value;
-          return true;
-        } catch (_) {
-          return false;
-        }
-      });
+// (public) this | a
+function op_or(x, y) {
+  return x | y
+}
 
-    // 26.1.14 Reflect.setPrototypeOf ( target, proto )
-    define(
-      Reflect, 'setPrototypeOf',
-      function setPrototypeOf(target, proto) {
-        try {
-          target.__proto__ = proto;
-          return Reflect.getPrototypeOf(target) === proto;
-        } catch(_) {
-          return false;
-        }
-      });
+function bnOr(a) {
+  var r = new BigInteger()
+  this.bitwiseTo(a, op_or, r)
+  return r
+}
 
-  }());
+// (public) this ^ a
+function op_xor(x, y) {
+  return x ^ y
+}
 
-  // ---------------------------------------
-  // 26.2 Proxy Objects
-  // ---------------------------------------
+function bnXor(a) {
+  var r = new BigInteger()
+  this.bitwiseTo(a, op_xor, r)
+  return r
+}
 
-  // Not polyfillable.
+// (public) this & ~a
+function op_andnot(x, y) {
+  return x & ~y
+}
 
-}(self));
+function bnAndNot(a) {
+  var r = new BigInteger()
+  this.bitwiseTo(a, op_andnot, r)
+  return r
+}
 
-// This helper is defined outside the main scope so that the use of
-// 'eval' does not taint the scope for minifiers.
-function __cons(t, a) {
-  return eval('new t(' + a.map(function(_, i) { return 'a[' + i + ']'; }).join(',') + ')');
+// (public) ~this
+function bnNot() {
+  var r = new BigInteger()
+  for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i]
+  r.t = this.t
+  r.s = ~this.s
+  return r
 }
-</script>
-        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.foo = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-'use strict'
 
-exports.byteLength = byteLength
-exports.toByteArray = toByteArray
-exports.fromByteArray = fromByteArray
+// (public) this << n
+function bnShiftLeft(n) {
+  var r = new BigInteger()
+  if (n < 0) this.rShiftTo(-n, r)
+  else this.lShiftTo(n, r)
+  return r
+}
 
-var lookup = []
-var revLookup = []
-var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
+// (public) this >> n
+function bnShiftRight(n) {
+  var r = new BigInteger()
+  if (n < 0) this.lShiftTo(-n, r)
+  else this.rShiftTo(n, r)
+  return r
+}
 
-var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
-for (var i = 0, len = code.length; i < len; ++i) {
-  lookup[i] = code[i]
-  revLookup[code.charCodeAt(i)] = i
+// return index of lowest 1-bit in x, x < 2^31
+function lbit(x) {
+  if (x == 0) return -1
+  var r = 0
+  if ((x & 0xffff) == 0) {
+    x >>= 16
+    r += 16
+  }
+  if ((x & 0xff) == 0) {
+    x >>= 8
+    r += 8
+  }
+  if ((x & 0xf) == 0) {
+    x >>= 4
+    r += 4
+  }
+  if ((x & 3) == 0) {
+    x >>= 2
+    r += 2
+  }
+  if ((x & 1) == 0)++r
+  return r
 }
 
-revLookup['-'.charCodeAt(0)] = 62
-revLookup['_'.charCodeAt(0)] = 63
+// (public) returns index of lowest 1-bit (or -1 if none)
+function bnGetLowestSetBit() {
+  for (var i = 0; i < this.t; ++i)
+    if (this[i] != 0) return i * this.DB + lbit(this[i])
+  if (this.s < 0) return this.t * this.DB
+  return -1
+}
 
-function placeHoldersCount (b64) {
-  var len = b64.length
-  if (len % 4 > 0) {
-    throw new Error('Invalid string. Length must be a multiple of 4')
+// return number of 1 bits in x
+function cbit(x) {
+  var r = 0
+  while (x != 0) {
+    x &= x - 1
+    ++r
   }
-
-  // the number of equal signs (place holders)
-  // if there are two placeholders, than the two characters before it
-  // represent one byte
-  // if there is only one, then the three characters before it represent 2 bytes
-  // this is just a cheap hack to not do indexOf twice
-  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
+  return r
 }
 
-function byteLength (b64) {
-  // base64 is 4/3 + up to two characters of the original data
-  return b64.length * 3 / 4 - placeHoldersCount(b64)
+// (public) return number of set bits
+function bnBitCount() {
+  var r = 0,
+    x = this.s & this.DM
+  for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x)
+  return r
 }
 
-function toByteArray (b64) {
-  var i, j, l, tmp, placeHolders, arr
-  var len = b64.length
-  placeHolders = placeHoldersCount(b64)
-
-  arr = new Arr(len * 3 / 4 - placeHolders)
-
-  // if there are placeholders, only get up to the last complete 4 chars
-  l = placeHolders > 0 ? len - 4 : len
-
-  var L = 0
-
-  for (i = 0, j = 0; i < l; i += 4, j += 3) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
-    arr[L++] = (tmp >> 16) & 0xFF
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
+// (public) true iff nth bit is set
+function bnTestBit(n) {
+  var j = Math.floor(n / this.DB)
+  if (j >= this.t) return (this.s != 0)
+  return ((this[j] & (1 << (n % this.DB))) != 0)
+}
 
-  if (placeHolders === 2) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
-    arr[L++] = tmp & 0xFF
-  } else if (placeHolders === 1) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
+// (protected) this op (1<<n)
+function bnpChangeBit(n, op) {
+  var r = BigInteger.ONE.shiftLeft(n)
+  this.bitwiseTo(r, op, r)
+  return r
+}
 
-  return arr
+// (public) this | (1<<n)
+function bnSetBit(n) {
+  return this.changeBit(n, op_or)
 }
 
-function tripletToBase64 (num) {
-  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
+// (public) this & ~(1<<n)
+function bnClearBit(n) {
+  return this.changeBit(n, op_andnot)
 }
 
-function encodeChunk (uint8, start, end) {
-  var tmp
-  var output = []
-  for (var i = start; i < end; i += 3) {
-    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
-    output.push(tripletToBase64(tmp))
-  }
-  return output.join('')
+// (public) this ^ (1<<n)
+function bnFlipBit(n) {
+  return this.changeBit(n, op_xor)
 }
 
-function fromByteArray (uint8) {
-  var tmp
-  var len = uint8.length
-  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
-  var output = ''
-  var parts = []
-  var maxChunkLength = 16383 // must be multiple of 3
+// (protected) r = this + a
+function bnpAddTo(a, r) {
+  var self = this
 
-  // go through the array every three bytes, we'll deal with trailing stuff later
-  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
+  var i = 0,
+    c = 0,
+    m = Math.min(a.t, self.t)
+  while (i < m) {
+    c += self[i] + a[i]
+    r[i++] = c & self.DM
+    c >>= self.DB
   }
-
-  // pad the end with zeros, but make sure to not forget the extra bytes
-  if (extraBytes === 1) {
-    tmp = uint8[len - 1]
-    output += lookup[tmp >> 2]
-    output += lookup[(tmp << 4) & 0x3F]
-    output += '=='
-  } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
-    output += lookup[tmp >> 10]
-    output += lookup[(tmp >> 4) & 0x3F]
-    output += lookup[(tmp << 2) & 0x3F]
-    output += '='
+  if (a.t < self.t) {
+    c += a.s
+    while (i < self.t) {
+      c += self[i]
+      r[i++] = c & self.DM
+      c >>= self.DB
+    }
+    c += self.s
+  } else {
+    c += self.s
+    while (i < a.t) {
+      c += a[i]
+      r[i++] = c & self.DM
+      c >>= self.DB
+    }
+    c += a.s
   }
-
-  parts.push(output)
-
-  return parts.join('')
+  r.s = (c < 0) ? -1 : 0
+  if (c > 0) r[i++] = c
+  else if (c < -1) r[i++] = self.DV + c
+  r.t = i
+  r.clamp()
 }
 
-},{}],2:[function(require,module,exports){
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license  MIT
- */
-/* eslint-disable no-proto */
+// (public) this + a
+function bnAdd(a) {
+  var r = new BigInteger()
+  this.addTo(a, r)
+  return r
+}
 
-'use strict'
+// (public) this - a
+function bnSubtract(a) {
+  var r = new BigInteger()
+  this.subTo(a, r)
+  return r
+}
 
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
+// (public) this * a
+function bnMultiply(a) {
+  var r = new BigInteger()
+  this.multiplyTo(a, r)
+  return r
+}
 
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
+// (public) this^2
+function bnSquare() {
+  var r = new BigInteger()
+  this.squareTo(r)
+  return r
+}
 
-var K_MAX_LENGTH = 0x7fffffff
-exports.kMaxLength = K_MAX_LENGTH
+// (public) this / a
+function bnDivide(a) {
+  var r = new BigInteger()
+  this.divRemTo(a, r, null)
+  return r
+}
 
-/**
- * If `Buffer.TYPED_ARRAY_SUPPORT`:
- *   === true    Use Uint8Array implementation (fastest)
- *   === false   Print warning and recommend using `buffer` v4.x which has an Object
- *               implementation (most compatible, even IE6)
- *
- * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
- * Opera 11.6+, iOS 4.2+.
- *
- * We report that the browser does not support typed arrays if the are not subclassable
- * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
- * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
- * for __proto__ and has a buggy typed array implementation.
- */
-Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
+// (public) this % a
+function bnRemainder(a) {
+  var r = new BigInteger()
+  this.divRemTo(a, null, r)
+  return r
+}
 
-if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
-    typeof console.error === 'function') {
-  console.error(
-    'This browser lacks typed array (Uint8Array) support which is required by ' +
-    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
-  )
+// (public) [this/a,this%a]
+function bnDivideAndRemainder(a) {
+  var q = new BigInteger(),
+    r = new BigInteger()
+  this.divRemTo(a, q, r)
+  return new Array(q, r)
 }
 
-function typedArraySupport () {
-  // Can typed array instances can be augmented?
-  try {
-    var arr = new Uint8Array(1)
-    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
-    return arr.foo() === 42
-  } catch (e) {
-    return false
-  }
+// (protected) this *= n, this >= 0, 1 < n < DV
+function bnpDMultiply(n) {
+  this[this.t] = this.am(0, n - 1, this, 0, 0, this.t)
+  ++this.t
+  this.clamp()
 }
 
-function createBuffer (length) {
-  if (length > K_MAX_LENGTH) {
-    throw new RangeError('Invalid typed array length')
+// (protected) this += n << w words, this >= 0
+function bnpDAddOffset(n, w) {
+  if (n == 0) return
+  while (this.t <= w) this[this.t++] = 0
+  this[w] += n
+  while (this[w] >= this.DV) {
+    this[w] -= this.DV
+    if (++w >= this.t) this[this.t++] = 0
+    ++this[w]
   }
-  // Return an augmented `Uint8Array` instance
-  var buf = new Uint8Array(length)
-  buf.__proto__ = Buffer.prototype
-  return buf
 }
 
-/**
- * The Buffer constructor returns instances of `Uint8Array` that have their
- * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
- * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
- * and the `Uint8Array` methods. Square bracket notation works as expected -- it
- * returns a single octet.
- *
- * The `Uint8Array` prototype remains unmodified.
- */
+// A "null" reducer
+function NullExp() {}
 
-function Buffer (arg, encodingOrOffset, length) {
-  // Common case.
-  if (typeof arg === 'number') {
-    if (typeof encodingOrOffset === 'string') {
-      throw new Error(
-        'If encoding is specified then the first argument must be a string'
-      )
-    }
-    return allocUnsafe(arg)
-  }
-  return from(arg, encodingOrOffset, length)
+function nNop(x) {
+  return x
 }
 
-// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-if (typeof Symbol !== 'undefined' && Symbol.species &&
-    Buffer[Symbol.species] === Buffer) {
-  Object.defineProperty(Buffer, Symbol.species, {
-    value: null,
-    configurable: true,
-    enumerable: false,
-    writable: false
-  })
+function nMulTo(x, y, r) {
+  x.multiplyTo(y, r)
 }
 
-Buffer.poolSize = 8192 // not used by this implementation
-
-function from (value, encodingOrOffset, length) {
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
-  }
-
-  if (value instanceof ArrayBuffer) {
-    return fromArrayBuffer(value, encodingOrOffset, length)
-  }
+function nSqrTo(x, r) {
+  x.squareTo(r)
+}
 
-  if (typeof value === 'string') {
-    return fromString(value, encodingOrOffset)
-  }
+NullExp.prototype.convert = nNop
+NullExp.prototype.revert = nNop
+NullExp.prototype.mulTo = nMulTo
+NullExp.prototype.sqrTo = nSqrTo
 
-  return fromObject(value)
+// (public) this^e
+function bnPow(e) {
+  return this.exp(e, new NullExp())
 }
 
-/**
- * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
- * if value is a number.
- * Buffer.from(str[, encoding])
- * Buffer.from(array)
- * Buffer.from(buffer)
- * Buffer.from(arrayBuffer[, byteOffset[, length]])
- **/
-Buffer.from = function (value, encodingOrOffset, length) {
-  return from(value, encodingOrOffset, length)
+// (protected) r = lower n words of "this * a", a.t <= n
+// "this" should be the larger one if appropriate.
+function bnpMultiplyLowerTo(a, n, r) {
+  var i = Math.min(this.t + a.t, n)
+  r.s = 0; // assumes a,this >= 0
+  r.t = i
+  while (i > 0) r[--i] = 0
+  var j
+  for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t)
+  for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i)
+  r.clamp()
 }
 
-// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
-// https://github.com/feross/buffer/pull/148
-Buffer.prototype.__proto__ = Uint8Array.prototype
-Buffer.__proto__ = Uint8Array
+// (protected) r = "this * a" without lower n words, n > 0
+// "this" should be the larger one if appropriate.
+function bnpMultiplyUpperTo(a, n, r) {
+  --n
+  var i = r.t = this.t + a.t - n
+  r.s = 0; // assumes a,this >= 0
+  while (--i >= 0) r[i] = 0
+  for (i = Math.max(n - this.t, 0); i < a.t; ++i)
+    r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n)
+  r.clamp()
+  r.drShiftTo(1, r)
+}
 
-function assertSize (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be a number')
-  } else if (size < 0) {
-    throw new RangeError('"size" argument must not be negative')
-  }
+// Barrett modular reduction
+function Barrett(m) {
+  // setup Barrett
+  this.r2 = new BigInteger()
+  this.q3 = new BigInteger()
+  BigInteger.ONE.dlShiftTo(2 * m.t, this.r2)
+  this.mu = this.r2.divide(m)
+  this.m = m
 }
 
-function alloc (size, fill, encoding) {
-  assertSize(size)
-  if (size <= 0) {
-    return createBuffer(size)
-  }
-  if (fill !== undefined) {
-    // Only pay attention to encoding if it's a string. This
-    // prevents accidentally sending in a number that would
-    // be interpretted as a start offset.
-    return typeof encoding === 'string'
-      ? createBuffer(size).fill(fill, encoding)
-      : createBuffer(size).fill(fill)
+function barrettConvert(x) {
+  if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m)
+  else if (x.compareTo(this.m) < 0) return x
+  else {
+    var r = new BigInteger()
+    x.copyTo(r)
+    this.reduce(r)
+    return r
   }
-  return createBuffer(size)
 }
 
-/**
- * Creates a new filled Buffer instance.
- * alloc(size[, fill[, encoding]])
- **/
-Buffer.alloc = function (size, fill, encoding) {
-  return alloc(size, fill, encoding)
+function barrettRevert(x) {
+  return x
 }
 
-function allocUnsafe (size) {
-  assertSize(size)
-  return createBuffer(size < 0 ? 0 : checked(size) | 0)
+// x = x mod m (HAC 14.42)
+function barrettReduce(x) {
+  var self = this
+  x.drShiftTo(self.m.t - 1, self.r2)
+  if (x.t > self.m.t + 1) {
+    x.t = self.m.t + 1
+    x.clamp()
+  }
+  self.mu.multiplyUpperTo(self.r2, self.m.t + 1, self.q3)
+  self.m.multiplyLowerTo(self.q3, self.m.t + 1, self.r2)
+  while (x.compareTo(self.r2) < 0) x.dAddOffset(1, self.m.t + 1)
+  x.subTo(self.r2, x)
+  while (x.compareTo(self.m) >= 0) x.subTo(self.m, x)
 }
 
-/**
- * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
- * */
-Buffer.allocUnsafe = function (size) {
-  return allocUnsafe(size)
+// r = x^2 mod m; x != r
+function barrettSqrTo(x, r) {
+  x.squareTo(r)
+  this.reduce(r)
 }
-/**
- * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
- */
-Buffer.allocUnsafeSlow = function (size) {
-  return allocUnsafe(size)
+
+// r = x*y mod m; x,y != r
+function barrettMulTo(x, y, r) {
+  x.multiplyTo(y, r)
+  this.reduce(r)
 }
 
-function fromString (string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') {
-    encoding = 'utf8'
+Barrett.prototype.convert = barrettConvert
+Barrett.prototype.revert = barrettRevert
+Barrett.prototype.reduce = barrettReduce
+Barrett.prototype.mulTo = barrettMulTo
+Barrett.prototype.sqrTo = barrettSqrTo
+
+// (public) this^e % m (HAC 14.85)
+function bnModPow(e, m) {
+  var i = e.bitLength(),
+    k, r = nbv(1),
+    z
+  if (i <= 0) return r
+  else if (i < 18) k = 1
+  else if (i < 48) k = 3
+  else if (i < 144) k = 4
+  else if (i < 768) k = 5
+  else k = 6
+  if (i < 8)
+    z = new Classic(m)
+  else if (m.isEven())
+    z = new Barrett(m)
+  else
+    z = new Montgomery(m)
+
+  // precomputation
+  var g = new Array(),
+    n = 3,
+    k1 = k - 1,
+    km = (1 << k) - 1
+  g[1] = z.convert(this)
+  if (k > 1) {
+    var g2 = new BigInteger()
+    z.sqrTo(g[1], g2)
+    while (n <= km) {
+      g[n] = new BigInteger()
+      z.mulTo(g2, g[n - 2], g[n])
+      n += 2
+    }
+  }
+
+  var j = e.t - 1,
+    w, is1 = true,
+    r2 = new BigInteger(),
+    t
+  i = nbits(e[j]) - 1
+  while (j >= 0) {
+    if (i >= k1) w = (e[j] >> (i - k1)) & km
+    else {
+      w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i)
+      if (j > 0) w |= e[j - 1] >> (this.DB + i - k1)
+    }
+
+    n = k
+    while ((w & 1) == 0) {
+      w >>= 1
+      --n
+    }
+    if ((i -= n) < 0) {
+      i += this.DB
+      --j
+    }
+    if (is1) { // ret == 1, don't bother squaring or multiplying it
+      g[w].copyTo(r)
+      is1 = false
+    } else {
+      while (n > 1) {
+        z.sqrTo(r, r2)
+        z.sqrTo(r2, r)
+        n -= 2
+      }
+      if (n > 0) z.sqrTo(r, r2)
+      else {
+        t = r
+        r = r2
+        r2 = t
+      }
+      z.mulTo(r2, g[w], r)
+    }
+
+    while (j >= 0 && (e[j] & (1 << i)) == 0) {
+      z.sqrTo(r, r2)
+      t = r
+      r = r2
+      r2 = t
+      if (--i < 0) {
+        i = this.DB - 1
+        --j
+      }
+    }
   }
+  return z.revert(r)
+}
 
-  if (!Buffer.isEncoding(encoding)) {
-    throw new TypeError('"encoding" must be a valid string encoding')
+// (public) gcd(this,a) (HAC 14.54)
+function bnGCD(a) {
+  var x = (this.s < 0) ? this.negate() : this.clone()
+  var y = (a.s < 0) ? a.negate() : a.clone()
+  if (x.compareTo(y) < 0) {
+    var t = x
+    x = y
+    y = t
   }
-
-  var length = byteLength(string, encoding) | 0
-  var buf = createBuffer(length)
-
-  var actual = buf.write(string, encoding)
-
-  if (actual !== length) {
-    // Writing a hex string, for example, that contains invalid characters will
-    // cause everything after the first invalid character to be ignored. (e.g.
-    // 'abxxcd' will be treated as 'ab')
-    buf = buf.slice(0, actual)
+  var i = x.getLowestSetBit(),
+    g = y.getLowestSetBit()
+  if (g < 0) return x
+  if (i < g) g = i
+  if (g > 0) {
+    x.rShiftTo(g, x)
+    y.rShiftTo(g, y)
+  }
+  while (x.signum() > 0) {
+    if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x)
+    if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y)
+    if (x.compareTo(y) >= 0) {
+      x.subTo(y, x)
+      x.rShiftTo(1, x)
+    } else {
+      y.subTo(x, y)
+      y.rShiftTo(1, y)
+    }
   }
+  if (g > 0) y.lShiftTo(g, y)
+  return y
+}
 
-  return buf
+// (protected) this % n, n < 2^26
+function bnpModInt(n) {
+  if (n <= 0) return 0
+  var d = this.DV % n,
+    r = (this.s < 0) ? n - 1 : 0
+  if (this.t > 0)
+    if (d == 0) r = this[0] % n
+    else
+      for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n
+  return r
 }
 
-function fromArrayLike (array) {
-  var length = array.length < 0 ? 0 : checked(array.length) | 0
-  var buf = createBuffer(length)
-  for (var i = 0; i < length; i += 1) {
-    buf[i] = array[i] & 255
+// (public) 1/this % m (HAC 14.61)
+function bnModInverse(m) {
+  var ac = m.isEven()
+  if (this.signum() === 0) throw new Error('division by zero')
+  if ((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO
+  var u = m.clone(),
+    v = this.clone()
+  var a = nbv(1),
+    b = nbv(0),
+    c = nbv(0),
+    d = nbv(1)
+  while (u.signum() != 0) {
+    while (u.isEven()) {
+      u.rShiftTo(1, u)
+      if (ac) {
+        if (!a.isEven() || !b.isEven()) {
+          a.addTo(this, a)
+          b.subTo(m, b)
+        }
+        a.rShiftTo(1, a)
+      } else if (!b.isEven()) b.subTo(m, b)
+      b.rShiftTo(1, b)
+    }
+    while (v.isEven()) {
+      v.rShiftTo(1, v)
+      if (ac) {
+        if (!c.isEven() || !d.isEven()) {
+          c.addTo(this, c)
+          d.subTo(m, d)
+        }
+        c.rShiftTo(1, c)
+      } else if (!d.isEven()) d.subTo(m, d)
+      d.rShiftTo(1, d)
+    }
+    if (u.compareTo(v) >= 0) {
+      u.subTo(v, u)
+      if (ac) a.subTo(c, a)
+      b.subTo(d, b)
+    } else {
+      v.subTo(u, v)
+      if (ac) c.subTo(a, c)
+      d.subTo(b, d)
+    }
   }
-  return buf
+  if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO
+  while (d.compareTo(m) >= 0) d.subTo(m, d)
+  while (d.signum() < 0) d.addTo(m, d)
+  return d
 }
 
-function fromArrayBuffer (array, byteOffset, length) {
-  if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('\'offset\' is out of bounds')
-  }
+var lowprimes = [
+  2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
+  73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151,
+  157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233,
+  239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317,
+  331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
+  421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503,
+  509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607,
+  613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701,
+  709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811,
+  821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911,
+  919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
+]
 
-  if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('\'length\' is out of bounds')
-  }
+var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
 
-  var buf
-  if (byteOffset === undefined && length === undefined) {
-    buf = new Uint8Array(array)
-  } else if (length === undefined) {
-    buf = new Uint8Array(array, byteOffset)
-  } else {
-    buf = new Uint8Array(array, byteOffset, length)
+// (public) test primality with certainty >= 1-.5^t
+function bnIsProbablePrime(t) {
+  var i, x = this.abs()
+  if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) {
+    for (i = 0; i < lowprimes.length; ++i)
+      if (x[0] == lowprimes[i]) return true
+    return false
+  }
+  if (x.isEven()) return false
+  i = 1
+  while (i < lowprimes.length) {
+    var m = lowprimes[i],
+      j = i + 1
+    while (j < lowprimes.length && m < lplim) m *= lowprimes[j++]
+    m = x.modInt(m)
+    while (i < j) if (m % lowprimes[i++] == 0) return false
   }
+  return x.millerRabin(t)
+}
 
-  // Return an augmented `Uint8Array` instance
-  buf.__proto__ = Buffer.prototype
-  return buf
+// (protected) true if probably prime (HAC 4.24, Miller-Rabin)
+function bnpMillerRabin(t) {
+  var n1 = this.subtract(BigInteger.ONE)
+  var k = n1.getLowestSetBit()
+  if (k <= 0) return false
+  var r = n1.shiftRight(k)
+  t = (t + 1) >> 1
+  if (t > lowprimes.length) t = lowprimes.length
+  var a = new BigInteger(null)
+  var j, bases = []
+  for (var i = 0; i < t; ++i) {
+    for (;;) {
+      j = lowprimes[Math.floor(Math.random() * lowprimes.length)]
+      if (bases.indexOf(j) == -1) break
+    }
+    bases.push(j)
+    a.fromInt(j)
+    var y = a.modPow(r, this)
+    if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
+      var j = 1
+      while (j++ < k && y.compareTo(n1) != 0) {
+        y = y.modPowInt(2, this)
+        if (y.compareTo(BigInteger.ONE) == 0) return false
+      }
+      if (y.compareTo(n1) != 0) return false
+    }
+  }
+  return true
 }
 
-function fromObject (obj) {
-  if (Buffer.isBuffer(obj)) {
-    var len = checked(obj.length) | 0
-    var buf = createBuffer(len)
+// protected
+proto.chunkSize = bnpChunkSize
+proto.toRadix = bnpToRadix
+proto.fromRadix = bnpFromRadix
+proto.fromNumber = bnpFromNumber
+proto.bitwiseTo = bnpBitwiseTo
+proto.changeBit = bnpChangeBit
+proto.addTo = bnpAddTo
+proto.dMultiply = bnpDMultiply
+proto.dAddOffset = bnpDAddOffset
+proto.multiplyLowerTo = bnpMultiplyLowerTo
+proto.multiplyUpperTo = bnpMultiplyUpperTo
+proto.modInt = bnpModInt
+proto.millerRabin = bnpMillerRabin
 
-    if (buf.length === 0) {
-      return buf
-    }
+// public
+proto.clone = bnClone
+proto.intValue = bnIntValue
+proto.byteValue = bnByteValue
+proto.shortValue = bnShortValue
+proto.signum = bnSigNum
+proto.toByteArray = bnToByteArray
+proto.equals = bnEquals
+proto.min = bnMin
+proto.max = bnMax
+proto.and = bnAnd
+proto.or = bnOr
+proto.xor = bnXor
+proto.andNot = bnAndNot
+proto.not = bnNot
+proto.shiftLeft = bnShiftLeft
+proto.shiftRight = bnShiftRight
+proto.getLowestSetBit = bnGetLowestSetBit
+proto.bitCount = bnBitCount
+proto.testBit = bnTestBit
+proto.setBit = bnSetBit
+proto.clearBit = bnClearBit
+proto.flipBit = bnFlipBit
+proto.add = bnAdd
+proto.subtract = bnSubtract
+proto.multiply = bnMultiply
+proto.divide = bnDivide
+proto.remainder = bnRemainder
+proto.divideAndRemainder = bnDivideAndRemainder
+proto.modPow = bnModPow
+proto.modInverse = bnModInverse
+proto.pow = bnPow
+proto.gcd = bnGCD
+proto.isProbablePrime = bnIsProbablePrime
 
-    obj.copy(buf, 0, 0, len)
-    return buf
-  }
+// JSBN-specific extension
+proto.square = bnSquare
 
-  if (obj) {
-    if (isArrayBufferView(obj) || 'length' in obj) {
-      if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
-        return createBuffer(0)
-      }
-      return fromArrayLike(obj)
-    }
+// constants
+BigInteger.ZERO = nbv(0)
+BigInteger.ONE = nbv(1)
+BigInteger.valueOf = nbv
 
-    if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
-      return fromArrayLike(obj.data)
-    }
-  }
+module.exports = BigInteger
 
-  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
-}
+},{"../package.json":40}],38:[function(require,module,exports){
+(function (Buffer){
+// FIXME: Kind of a weird way to throw exceptions, consider removing
+var assert = require('assert')
+var BigInteger = require('./bigi')
 
-function checked (length) {
-  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= K_MAX_LENGTH) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
+/**
+ * Turns a byte array into a big integer.
+ *
+ * This function will interpret a byte array as a big integer in big
+ * endian notation.
+ */
+BigInteger.fromByteArrayUnsigned = function(byteArray) {
+  // BigInteger expects a DER integer conformant byte array
+  if (byteArray[0] & 0x80) {
+    return new BigInteger([0].concat(byteArray))
   }
-  return length | 0
-}
 
-function SlowBuffer (length) {
-  if (+length != length) { // eslint-disable-line eqeqeq
-    length = 0
-  }
-  return Buffer.alloc(+length)
+  return new BigInteger(byteArray)
 }
 
-Buffer.isBuffer = function isBuffer (b) {
-  return b != null && b._isBuffer === true
+/**
+ * Returns a byte array representation of the big integer.
+ *
+ * This returns the absolute of the contained value in big endian
+ * form. A value of zero results in an empty array.
+ */
+BigInteger.prototype.toByteArrayUnsigned = function() {
+  var byteArray = this.toByteArray()
+  return byteArray[0] === 0 ? byteArray.slice(1) : byteArray
 }
 
-Buffer.compare = function compare (a, b) {
-  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
-    throw new TypeError('Arguments must be Buffers')
-  }
+BigInteger.fromDERInteger = function(byteArray) {
+  return new BigInteger(byteArray)
+}
 
-  if (a === b) return 0
+/*
+ * Converts BigInteger to a DER integer representation.
+ *
+ * The format for this value uses the most significant bit as a sign
+ * bit.  If the most significant bit is already set and the integer is
+ * positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ *      0 =>     0x00
+ *      1 =>     0x01
+ *     -1 =>     0xff
+ *    127 =>     0x7f
+ *   -127 =>     0x81
+ *    128 =>   0x0080
+ *   -128 =>     0x80
+ *    255 =>   0x00ff
+ *   -255 =>   0xff01
+ *  16300 =>   0x3fac
+ * -16300 =>   0xc054
+ *  62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+BigInteger.prototype.toDERInteger = BigInteger.prototype.toByteArray
 
-  var x = a.length
-  var y = b.length
+BigInteger.fromBuffer = function(buffer) {
+  // BigInteger expects a DER integer conformant byte array
+  if (buffer[0] & 0x80) {
+    var byteArray = Array.prototype.slice.call(buffer)
 
-  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
-    if (a[i] !== b[i]) {
-      x = a[i]
-      y = b[i]
-      break
-    }
+    return new BigInteger([0].concat(byteArray))
   }
 
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
+  return new BigInteger(buffer)
 }
 
-Buffer.isEncoding = function isEncoding (encoding) {
-  switch (String(encoding).toLowerCase()) {
-    case 'hex':
-    case 'utf8':
-    case 'utf-8':
-    case 'ascii':
-    case 'latin1':
-    case 'binary':
-    case 'base64':
-    case 'ucs2':
-    case 'ucs-2':
-    case 'utf16le':
-    case 'utf-16le':
-      return true
-    default:
-      return false
-  }
+BigInteger.fromHex = function(hex) {
+  if (hex === '') return BigInteger.ZERO
+
+  assert.equal(hex, hex.match(/^[A-Fa-f0-9]+/), 'Invalid hex string')
+  assert.equal(hex.length % 2, 0, 'Incomplete hex')
+  return new BigInteger(hex, 16)
 }
 
-Buffer.concat = function concat (list, length) {
-  if (!Array.isArray(list)) {
-    throw new TypeError('"list" argument must be an Array of Buffers')
-  }
+BigInteger.prototype.toBuffer = function(size) {
+  var byteArray = this.toByteArrayUnsigned()
+  var zeros = []
 
-  if (list.length === 0) {
-    return Buffer.alloc(0)
-  }
+  var padding = size - byteArray.length
+  while (zeros.length < padding) zeros.push(0)
 
-  var i
-  if (length === undefined) {
-    length = 0
-    for (i = 0; i < list.length; ++i) {
-      length += list[i].length
-    }
-  }
+  return new Buffer(zeros.concat(byteArray))
+}
 
-  var buffer = Buffer.allocUnsafe(length)
-  var pos = 0
-  for (i = 0; i < list.length; ++i) {
-    var buf = list[i]
-    if (!Buffer.isBuffer(buf)) {
-      throw new TypeError('"list" argument must be an Array of Buffers')
-    }
-    buf.copy(buffer, pos)
-    pos += buf.length
-  }
-  return buffer
+BigInteger.prototype.toHex = function(size) {
+  return this.toBuffer(size).toString('hex')
 }
 
-function byteLength (string, encoding) {
-  if (Buffer.isBuffer(string)) {
-    return string.length
-  }
-  if (isArrayBufferView(string) || string instanceof ArrayBuffer) {
-    return string.byteLength
-  }
-  if (typeof string !== 'string') {
-    string = '' + string
-  }
+}).call(this,require("buffer").Buffer)
+},{"./bigi":37,"assert":1,"buffer":5}],39:[function(require,module,exports){
+var BigInteger = require('./bigi')
 
-  var len = string.length
-  if (len === 0) return 0
+//addons
+require('./convert')
 
-  // Use a for loop to avoid recursion
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'ascii':
-      case 'latin1':
-      case 'binary':
-        return len
-      case 'utf8':
-      case 'utf-8':
-      case undefined:
-        return utf8ToBytes(string).length
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return len * 2
-      case 'hex':
-        return len >>> 1
-      case 'base64':
-        return base64ToBytes(string).length
-      default:
-        if (loweredCase) return utf8ToBytes(string).length // assume utf8
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
+module.exports = BigInteger
+},{"./bigi":37,"./convert":38}],40:[function(require,module,exports){
+module.exports={
+  "_args": [
+    [
+      "bigi",
+      "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
+    ]
+  ],
+  "_from": "bigi@latest",
+  "_id": "bigi@1.4.2",
+  "_inCache": true,
+  "_installable": true,
+  "_location": "/bigi",
+  "_nodeVersion": "6.1.0",
+  "_npmOperationalInternal": {
+    "host": "packages-12-west.internal.npmjs.com",
+    "tmp": "tmp/bigi-1.4.2.tgz_1469584192413_0.6801238611806184"
+  },
+  "_npmUser": {
+    "email": "jprichardson@gmail.com",
+    "name": "jprichardson"
+  },
+  "_npmVersion": "3.8.6",
+  "_phantomChildren": {},
+  "_requested": {
+    "name": "bigi",
+    "raw": "bigi",
+    "rawSpec": "",
+    "scope": null,
+    "spec": "latest",
+    "type": "tag"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/bitcoinjs-lib",
+    "/ecurve"
+  ],
+  "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz",
+  "_shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
+  "_shrinkwrap": null,
+  "_spec": "bigi",
+  "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser",
+  "bugs": {
+    "url": "https://github.com/cryptocoinjs/bigi/issues"
+  },
+  "dependencies": {},
+  "description": "Big integers.",
+  "devDependencies": {
+    "coveralls": "^2.11.2",
+    "istanbul": "^0.3.5",
+    "jshint": "^2.5.1",
+    "mocha": "^2.1.0",
+    "mochify": "^2.1.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "9c665a95f88b8b08fc05cfd731f561859d725825",
+    "tarball": "https://registry.npmjs.org/bigi/-/bigi-1.4.2.tgz"
+  },
+  "gitHead": "c25308081c896ff84702303722bf5ecd8b3f78e3",
+  "homepage": "https://github.com/cryptocoinjs/bigi#readme",
+  "keywords": [
+    "cryptography",
+    "math",
+    "bitcoin",
+    "arbitrary",
+    "precision",
+    "arithmetic",
+    "big",
+    "integer",
+    "int",
+    "number",
+    "biginteger",
+    "bigint",
+    "bignumber",
+    "decimal",
+    "float"
+  ],
+  "main": "./lib/index.js",
+  "maintainers": [
+    {
+      "email": "boydb@midnightdesign.ws",
+      "name": "midnightlightning"
+    },
+    {
+      "email": "sidazhang89@gmail.com",
+      "name": "sidazhang"
+    },
+    {
+      "email": "npm@shesek.info",
+      "name": "nadav"
+    },
+    {
+      "email": "jprichardson@gmail.com",
+      "name": "jprichardson"
     }
-  }
+  ],
+  "name": "bigi",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/cryptocoinjs/bigi.git"
+  },
+  "scripts": {
+    "browser-test": "mochify --wd -R spec",
+    "coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter list test/*.js",
+    "coveralls": "npm run-script coverage && node ./node_modules/.bin/coveralls < coverage/lcov.info",
+    "jshint": "jshint --config jshint.json lib/*.js ; true",
+    "test": "_mocha -- test/*.js",
+    "unit": "mocha"
+  },
+  "testling": {
+    "browsers": [
+      "ie/9..latest",
+      "firefox/latest",
+      "chrome/latest",
+      "safari/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ],
+    "files": "test/*.js",
+    "harness": "mocha"
+  },
+  "version": "1.4.2"
 }
-Buffer.byteLength = byteLength
-
-function slowToString (encoding, start, end) {
-  var loweredCase = false
-
-  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
-  // property of a typed array.
 
-  // This behaves neither like String nor Uint8Array in that we set start/end
-  // to their upper/lower bounds if the value passed is out of range.
-  // undefined is handled specially as per ECMA-262 6th Edition,
-  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
-  if (start === undefined || start < 0) {
-    start = 0
-  }
-  // Return early if start > this.length. Done here to prevent potential uint32
-  // coercion fail below.
-  if (start > this.length) {
-    return ''
-  }
+},{}],41:[function(require,module,exports){
+// Reference https://github.com/bitcoin/bips/blob/master/bip-0066.mediawiki
+// Format: 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S]
+// NOTE: SIGHASH byte ignored AND restricted, truncate before use
 
-  if (end === undefined || end > this.length) {
-    end = this.length
-  }
+var Buffer = require('safe-buffer').Buffer
 
-  if (end <= 0) {
-    return ''
-  }
+function check (buffer) {
+  if (buffer.length < 8) return false
+  if (buffer.length > 72) return false
+  if (buffer[0] !== 0x30) return false
+  if (buffer[1] !== buffer.length - 2) return false
+  if (buffer[2] !== 0x02) return false
 
-  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
-  end >>>= 0
-  start >>>= 0
+  var lenR = buffer[3]
+  if (lenR === 0) return false
+  if (5 + lenR >= buffer.length) return false
+  if (buffer[4 + lenR] !== 0x02) return false
 
-  if (end <= start) {
-    return ''
-  }
+  var lenS = buffer[5 + lenR]
+  if (lenS === 0) return false
+  if ((6 + lenR + lenS) !== buffer.length) return false
 
-  if (!encoding) encoding = 'utf8'
+  if (buffer[4] & 0x80) return false
+  if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) return false
 
-  while (true) {
-    switch (encoding) {
-      case 'hex':
-        return hexSlice(this, start, end)
+  if (buffer[lenR + 6] & 0x80) return false
+  if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) return false
+  return true
+}
 
-      case 'utf8':
-      case 'utf-8':
-        return utf8Slice(this, start, end)
+function decode (buffer) {
+  if (buffer.length < 8) throw new Error('DER sequence length is too short')
+  if (buffer.length > 72) throw new Error('DER sequence length is too long')
+  if (buffer[0] !== 0x30) throw new Error('Expected DER sequence')
+  if (buffer[1] !== buffer.length - 2) throw new Error('DER sequence length is invalid')
+  if (buffer[2] !== 0x02) throw new Error('Expected DER integer')
 
-      case 'ascii':
-        return asciiSlice(this, start, end)
+  var lenR = buffer[3]
+  if (lenR === 0) throw new Error('R length is zero')
+  if (5 + lenR >= buffer.length) throw new Error('R length is too long')
+  if (buffer[4 + lenR] !== 0x02) throw new Error('Expected DER integer (2)')
 
-      case 'latin1':
-      case 'binary':
-        return latin1Slice(this, start, end)
+  var lenS = buffer[5 + lenR]
+  if (lenS === 0) throw new Error('S length is zero')
+  if ((6 + lenR + lenS) !== buffer.length) throw new Error('S length is invalid')
 
-      case 'base64':
-        return base64Slice(this, start, end)
+  if (buffer[4] & 0x80) throw new Error('R value is negative')
+  if (lenR > 1 && (buffer[4] === 0x00) && !(buffer[5] & 0x80)) throw new Error('R value excessively padded')
 
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return utf16leSlice(this, start, end)
+  if (buffer[lenR + 6] & 0x80) throw new Error('S value is negative')
+  if (lenS > 1 && (buffer[lenR + 6] === 0x00) && !(buffer[lenR + 7] & 0x80)) throw new Error('S value excessively padded')
 
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = (encoding + '').toLowerCase()
-        loweredCase = true
-    }
+  // non-BIP66 - extract R, S values
+  return {
+    r: buffer.slice(4, 4 + lenR),
+    s: buffer.slice(6 + lenR)
   }
 }
 
-// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
-// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
-// reliably in a browserify context because there could be multiple different
-// copies of the 'buffer' package in use. This method works even for Buffer
-// instances that were created from another copy of the `buffer` package.
-// See: https://github.com/feross/buffer/issues/154
-Buffer.prototype._isBuffer = true
+/*
+ * Expects r and s to be positive DER integers.
+ *
+ * The DER format uses the most significant bit as a sign bit (& 0x80).
+ * If the significant bit is set AND the integer is positive, a 0x00 is prepended.
+ *
+ * Examples:
+ *
+ *      0 =>     0x00
+ *      1 =>     0x01
+ *     -1 =>     0xff
+ *    127 =>     0x7f
+ *   -127 =>     0x81
+ *    128 =>   0x0080
+ *   -128 =>     0x80
+ *    255 =>   0x00ff
+ *   -255 =>   0xff01
+ *  16300 =>   0x3fac
+ * -16300 =>   0xc054
+ *  62300 => 0x00f35c
+ * -62300 => 0xff0ca4
+*/
+function encode (r, s) {
+  var lenR = r.length
+  var lenS = s.length
+  if (lenR === 0) throw new Error('R length is zero')
+  if (lenS === 0) throw new Error('S length is zero')
+  if (lenR > 33) throw new Error('R length is too long')
+  if (lenS > 33) throw new Error('S length is too long')
+  if (r[0] & 0x80) throw new Error('R value is negative')
+  if (s[0] & 0x80) throw new Error('S value is negative')
+  if (lenR > 1 && (r[0] === 0x00) && !(r[1] & 0x80)) throw new Error('R value excessively padded')
+  if (lenS > 1 && (s[0] === 0x00) && !(s[1] & 0x80)) throw new Error('S value excessively padded')
 
-function swap (b, n, m) {
-  var i = b[n]
-  b[n] = b[m]
-  b[m] = i
-}
+  var signature = Buffer.allocUnsafe(6 + lenR + lenS)
 
-Buffer.prototype.swap16 = function swap16 () {
-  var len = this.length
-  if (len % 2 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 16-bits')
-  }
-  for (var i = 0; i < len; i += 2) {
-    swap(this, i, i + 1)
-  }
-  return this
-}
+  // 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S]
+  signature[0] = 0x30
+  signature[1] = signature.length - 2
+  signature[2] = 0x02
+  signature[3] = r.length
+  r.copy(signature, 4)
+  signature[4 + lenR] = 0x02
+  signature[5 + lenR] = s.length
+  s.copy(signature, 6 + lenR)
 
-Buffer.prototype.swap32 = function swap32 () {
-  var len = this.length
-  if (len % 4 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 32-bits')
-  }
-  for (var i = 0; i < len; i += 4) {
-    swap(this, i, i + 3)
-    swap(this, i + 1, i + 2)
-  }
-  return this
+  return signature
 }
 
-Buffer.prototype.swap64 = function swap64 () {
-  var len = this.length
-  if (len % 8 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 64-bits')
-  }
-  for (var i = 0; i < len; i += 8) {
-    swap(this, i, i + 7)
-    swap(this, i + 1, i + 6)
-    swap(this, i + 2, i + 5)
-    swap(this, i + 3, i + 4)
-  }
-  return this
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-Buffer.prototype.toString = function toString () {
-  var length = this.length
-  if (length === 0) return ''
-  if (arguments.length === 0) return utf8Slice(this, 0, length)
-  return slowToString.apply(this, arguments)
-}
+},{"safe-buffer":128}],42:[function(require,module,exports){
+module.exports={
+  "OP_FALSE": 0,
+  "OP_0": 0,
+  "OP_PUSHDATA1": 76,
+  "OP_PUSHDATA2": 77,
+  "OP_PUSHDATA4": 78,
+  "OP_1NEGATE": 79,
+  "OP_RESERVED": 80,
+  "OP_1": 81,
+  "OP_TRUE": 81,
+  "OP_2": 82,
+  "OP_3": 83,
+  "OP_4": 84,
+  "OP_5": 85,
+  "OP_6": 86,
+  "OP_7": 87,
+  "OP_8": 88,
+  "OP_9": 89,
+  "OP_10": 90,
+  "OP_11": 91,
+  "OP_12": 92,
+  "OP_13": 93,
+  "OP_14": 94,
+  "OP_15": 95,
+  "OP_16": 96,
+
+  "OP_NOP": 97,
+  "OP_VER": 98,
+  "OP_IF": 99,
+  "OP_NOTIF": 100,
+  "OP_VERIF": 101,
+  "OP_VERNOTIF": 102,
+  "OP_ELSE": 103,
+  "OP_ENDIF": 104,
+  "OP_VERIFY": 105,
+  "OP_RETURN": 106,
+
+  "OP_TOALTSTACK": 107,
+  "OP_FROMALTSTACK": 108,
+  "OP_2DROP": 109,
+  "OP_2DUP": 110,
+  "OP_3DUP": 111,
+  "OP_2OVER": 112,
+  "OP_2ROT": 113,
+  "OP_2SWAP": 114,
+  "OP_IFDUP": 115,
+  "OP_DEPTH": 116,
+  "OP_DROP": 117,
+  "OP_DUP": 118,
+  "OP_NIP": 119,
+  "OP_OVER": 120,
+  "OP_PICK": 121,
+  "OP_ROLL": 122,
+  "OP_ROT": 123,
+  "OP_SWAP": 124,
+  "OP_TUCK": 125,
+
+  "OP_CAT": 126,
+  "OP_SUBSTR": 127,
+  "OP_LEFT": 128,
+  "OP_RIGHT": 129,
+  "OP_SIZE": 130,
+
+  "OP_INVERT": 131,
+  "OP_AND": 132,
+  "OP_OR": 133,
+  "OP_XOR": 134,
+  "OP_EQUAL": 135,
+  "OP_EQUALVERIFY": 136,
+  "OP_RESERVED1": 137,
+  "OP_RESERVED2": 138,
+
+  "OP_1ADD": 139,
+  "OP_1SUB": 140,
+  "OP_2MUL": 141,
+  "OP_2DIV": 142,
+  "OP_NEGATE": 143,
+  "OP_ABS": 144,
+  "OP_NOT": 145,
+  "OP_0NOTEQUAL": 146,
+  "OP_ADD": 147,
+  "OP_SUB": 148,
+  "OP_MUL": 149,
+  "OP_DIV": 150,
+  "OP_MOD": 151,
+  "OP_LSHIFT": 152,
+  "OP_RSHIFT": 153,
+
+  "OP_BOOLAND": 154,
+  "OP_BOOLOR": 155,
+  "OP_NUMEQUAL": 156,
+  "OP_NUMEQUALVERIFY": 157,
+  "OP_NUMNOTEQUAL": 158,
+  "OP_LESSTHAN": 159,
+  "OP_GREATERTHAN": 160,
+  "OP_LESSTHANOREQUAL": 161,
+  "OP_GREATERTHANOREQUAL": 162,
+  "OP_MIN": 163,
+  "OP_MAX": 164,
+
+  "OP_WITHIN": 165,
+
+  "OP_RIPEMD160": 166,
+  "OP_SHA1": 167,
+  "OP_SHA256": 168,
+  "OP_HASH160": 169,
+  "OP_HASH256": 170,
+  "OP_CODESEPARATOR": 171,
+  "OP_CHECKSIG": 172,
+  "OP_CHECKSIGVERIFY": 173,
+  "OP_CHECKMULTISIG": 174,
+  "OP_CHECKMULTISIGVERIFY": 175,
+
+  "OP_NOP1": 176,
+  "OP_NOP2": 177,
+  "OP_CHECKLOCKTIMEVERIFY": 177,
+
+  "OP_NOP3": 178,
+  "OP_NOP4": 179,
+  "OP_NOP5": 180,
+  "OP_NOP6": 181,
+  "OP_NOP7": 182,
+  "OP_NOP8": 183,
+  "OP_NOP9": 184,
+  "OP_NOP10": 185,
+
+  "OP_PUBKEYHASH": 253,
+  "OP_PUBKEY": 254,
+  "OP_INVALIDOPCODE": 255
+}
+
+},{}],43:[function(require,module,exports){
+var OPS = require('./index.json')
+
+var map = {}
+for (var op in OPS) {
+  var code = OPS[op]
+  map[code] = op
+}
+
+module.exports = map
+
+},{"./index.json":42}],44:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bech32 = require('bech32')
+var bs58check = require('bs58check')
+var bscript = require('./script')
+var btemplates = require('./templates')
+var networks = require('./networks')
+var typeforce = require('typeforce')
+var types = require('./types')
 
-Buffer.prototype.equals = function equals (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return true
-  return Buffer.compare(this, b) === 0
-}
+function fromBase58Check (address) {
+  var payload = bs58check.decode(address)
 
-Buffer.prototype.inspect = function inspect () {
-  var str = ''
-  var max = exports.INSPECT_MAX_BYTES
-  if (this.length > 0) {
-    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
-    if (this.length > max) str += ' ... '
-  }
-  return '<Buffer ' + str + '>'
-}
+  // TODO: 4.0.0, move to "toOutputScript"
+  if (payload.length < 21) throw new TypeError(address + ' is too short')
+  if (payload.length > 21) throw new TypeError(address + ' is too long')
 
-Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
-  if (!Buffer.isBuffer(target)) {
-    throw new TypeError('Argument must be a Buffer')
-  }
+  var version = payload.readUInt8(0)
+  var hash = payload.slice(1)
 
-  if (start === undefined) {
-    start = 0
-  }
-  if (end === undefined) {
-    end = target ? target.length : 0
-  }
-  if (thisStart === undefined) {
-    thisStart = 0
-  }
-  if (thisEnd === undefined) {
-    thisEnd = this.length
-  }
+  return { version: version, hash: hash }
+}
 
-  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
-    throw new RangeError('out of range index')
-  }
+function fromBech32 (address) {
+  var result = bech32.decode(address)
+  var data = bech32.fromWords(result.words.slice(1))
 
-  if (thisStart >= thisEnd && start >= end) {
-    return 0
-  }
-  if (thisStart >= thisEnd) {
-    return -1
-  }
-  if (start >= end) {
-    return 1
+  return {
+    version: result.words[0],
+    prefix: result.prefix,
+    data: Buffer.from(data)
   }
+}
 
-  start >>>= 0
-  end >>>= 0
-  thisStart >>>= 0
-  thisEnd >>>= 0
-
-  if (this === target) return 0
-
-  var x = thisEnd - thisStart
-  var y = end - start
-  var len = Math.min(x, y)
-
-  var thisCopy = this.slice(thisStart, thisEnd)
-  var targetCopy = target.slice(start, end)
+function toBase58Check (hash, version) {
+  typeforce(types.tuple(types.Hash160bit, types.UInt8), arguments)
 
-  for (var i = 0; i < len; ++i) {
-    if (thisCopy[i] !== targetCopy[i]) {
-      x = thisCopy[i]
-      y = targetCopy[i]
-      break
-    }
-  }
+  var payload = Buffer.allocUnsafe(21)
+  payload.writeUInt8(version, 0)
+  hash.copy(payload, 1)
 
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
+  return bs58check.encode(payload)
 }
 
-// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
-// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
-//
-// Arguments:
-// - buffer - a Buffer to search
-// - val - a string, Buffer, or number
-// - byteOffset - an index into `buffer`; will be clamped to an int32
-// - encoding - an optional encoding, relevant is val is a string
-// - dir - true for indexOf, false for lastIndexOf
-function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
-  // Empty buffer means no match
-  if (buffer.length === 0) return -1
-
-  // Normalize byteOffset
-  if (typeof byteOffset === 'string') {
-    encoding = byteOffset
-    byteOffset = 0
-  } else if (byteOffset > 0x7fffffff) {
-    byteOffset = 0x7fffffff
-  } else if (byteOffset < -0x80000000) {
-    byteOffset = -0x80000000
-  }
-  byteOffset = +byteOffset  // Coerce to Number.
-  if (numberIsNaN(byteOffset)) {
-    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
-    byteOffset = dir ? 0 : (buffer.length - 1)
-  }
+function toBech32 (data, version, prefix) {
+  var words = bech32.toWords(data)
+  words.unshift(version)
 
-  // Normalize byteOffset: negative offsets start from the end of the buffer
-  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
-  if (byteOffset >= buffer.length) {
-    if (dir) return -1
-    else byteOffset = buffer.length - 1
-  } else if (byteOffset < 0) {
-    if (dir) byteOffset = 0
-    else return -1
-  }
+  return bech32.encode(prefix, words)
+}
 
-  // Normalize val
-  if (typeof val === 'string') {
-    val = Buffer.from(val, encoding)
-  }
+function fromOutputScript (outputScript, network) {
+  network = network || networks.bitcoin
 
-  // Finally, search either indexOf (if dir is true) or lastIndexOf
-  if (Buffer.isBuffer(val)) {
-    // Special case: looking for empty string/buffer always fails
-    if (val.length === 0) {
-      return -1
-    }
-    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
-  } else if (typeof val === 'number') {
-    val = val & 0xFF // Search for a byte value [0-255]
-    if (typeof Uint8Array.prototype.indexOf === 'function') {
-      if (dir) {
-        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
-      } else {
-        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
-      }
-    }
-    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
-  }
+  if (btemplates.pubKeyHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(3, 23), network.pubKeyHash)
+  if (btemplates.scriptHash.output.check(outputScript)) return toBase58Check(bscript.compile(outputScript).slice(2, 22), network.scriptHash)
+  if (btemplates.witnessPubKeyHash.output.check(outputScript)) return toBech32(bscript.compile(outputScript).slice(2, 22), 0, network.bech32)
+  if (btemplates.witnessScriptHash.output.check(outputScript)) return toBech32(bscript.compile(outputScript).slice(2, 34), 0, network.bech32)
 
-  throw new TypeError('val must be string, number or Buffer')
+  throw new Error(bscript.toASM(outputScript) + ' has no matching Address')
 }
 
-function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
-  var indexSize = 1
-  var arrLength = arr.length
-  var valLength = val.length
-
-  if (encoding !== undefined) {
-    encoding = String(encoding).toLowerCase()
-    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
-        encoding === 'utf16le' || encoding === 'utf-16le') {
-      if (arr.length < 2 || val.length < 2) {
-        return -1
-      }
-      indexSize = 2
-      arrLength /= 2
-      valLength /= 2
-      byteOffset /= 2
-    }
-  }
+function toOutputScript (address, network) {
+  network = network || networks.bitcoin
 
-  function read (buf, i) {
-    if (indexSize === 1) {
-      return buf[i]
-    } else {
-      return buf.readUInt16BE(i * indexSize)
-    }
-  }
+  var decode
+  try {
+    decode = fromBase58Check(address)
+  } catch (e) {}
 
-  var i
-  if (dir) {
-    var foundIndex = -1
-    for (i = byteOffset; i < arrLength; i++) {
-      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
-        if (foundIndex === -1) foundIndex = i
-        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
-      } else {
-        if (foundIndex !== -1) i -= i - foundIndex
-        foundIndex = -1
-      }
-    }
+  if (decode) {
+    if (decode.version === network.pubKeyHash) return btemplates.pubKeyHash.output.encode(decode.hash)
+    if (decode.version === network.scriptHash) return btemplates.scriptHash.output.encode(decode.hash)
   } else {
-    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
-    for (i = byteOffset; i >= 0; i--) {
-      var found = true
-      for (var j = 0; j < valLength; j++) {
-        if (read(arr, i + j) !== read(val, j)) {
-          found = false
-          break
-        }
+    try {
+      decode = fromBech32(address)
+    } catch (e) {}
+
+    if (decode) {
+      if (decode.prefix !== network.bech32) throw new Error(address + ' has an invalid prefix')
+      if (decode.version === 0) {
+        if (decode.data.length === 20) return btemplates.witnessPubKeyHash.output.encode(decode.data)
+        if (decode.data.length === 32) return btemplates.witnessScriptHash.output.encode(decode.data)
       }
-      if (found) return i
     }
   }
 
-  return -1
+  throw new Error(address + ' has no matching Script')
 }
 
-Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
-  return this.indexOf(val, byteOffset, encoding) !== -1
+module.exports = {
+  fromBase58Check: fromBase58Check,
+  fromBech32: fromBech32,
+  fromOutputScript: fromOutputScript,
+  toBase58Check: toBase58Check,
+  toBech32: toBech32,
+  toOutputScript: toOutputScript
 }
 
-Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
-}
+},{"./networks":53,"./script":54,"./templates":56,"./types":80,"bech32":36,"bs58check":85,"safe-buffer":128,"typeforce":139}],45:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bcrypto = require('./crypto')
+var fastMerkleRoot = require('merkle-lib/fastRoot')
+var typeforce = require('typeforce')
+var types = require('./types')
+var varuint = require('varuint-bitcoin')
 
-Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
-}
+var Transaction = require('./transaction')
 
-function hexWrite (buf, string, offset, length) {
-  offset = Number(offset) || 0
-  var remaining = buf.length - offset
-  if (!length) {
-    length = remaining
-  } else {
-    length = Number(length)
-    if (length > remaining) {
-      length = remaining
-    }
-  }
+function Block () {
+  this.version = 1
+  this.prevHash = null
+  this.merkleRoot = null
+  this.timestamp = 0
+  this.bits = 0
+  this.nonce = 0
+}
 
-  // must be an even number of digits
-  var strLen = string.length
-  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
+Block.fromBuffer = function (buffer) {
+  if (buffer.length < 80) throw new Error('Buffer too small (< 80 bytes)')
 
-  if (length > strLen / 2) {
-    length = strLen / 2
-  }
-  for (var i = 0; i < length; ++i) {
-    var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (numberIsNaN(parsed)) return i
-    buf[offset + i] = parsed
+  var offset = 0
+  function readSlice (n) {
+    offset += n
+    return buffer.slice(offset - n, offset)
   }
-  return i
-}
 
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
+  function readUInt32 () {
+    var i = buffer.readUInt32LE(offset)
+    offset += 4
+    return i
+  }
 
-function asciiWrite (buf, string, offset, length) {
-  return blitBuffer(asciiToBytes(string), buf, offset, length)
-}
+  function readInt32 () {
+    var i = buffer.readInt32LE(offset)
+    offset += 4
+    return i
+  }
 
-function latin1Write (buf, string, offset, length) {
-  return asciiWrite(buf, string, offset, length)
-}
+  var block = new Block()
+  block.version = readInt32()
+  block.prevHash = readSlice(32)
+  block.merkleRoot = readSlice(32)
+  block.timestamp = readUInt32()
+  block.bits = readUInt32()
+  block.nonce = readUInt32()
 
-function base64Write (buf, string, offset, length) {
-  return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
+  if (buffer.length === 80) return block
 
-function ucs2Write (buf, string, offset, length) {
-  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
-}
+  function readVarInt () {
+    var vi = varuint.decode(buffer, offset)
+    offset += varuint.decode.bytes
+    return vi
+  }
 
-Buffer.prototype.write = function write (string, offset, length, encoding) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    encoding = 'utf8'
-    length = this.length
-    offset = 0
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    encoding = offset
-    length = this.length
-    offset = 0
-  // Buffer#write(string, offset[, length][, encoding])
-  } else if (isFinite(offset)) {
-    offset = offset >>> 0
-    if (isFinite(length)) {
-      length = length >>> 0
-      if (encoding === undefined) encoding = 'utf8'
-    } else {
-      encoding = length
-      length = undefined
-    }
-  } else {
-    throw new Error(
-      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
-    )
+  function readTransaction () {
+    var tx = Transaction.fromBuffer(buffer.slice(offset), true)
+    offset += tx.byteLength()
+    return tx
   }
 
-  var remaining = this.length - offset
-  if (length === undefined || length > remaining) length = remaining
+  var nTransactions = readVarInt()
+  block.transactions = []
 
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('Attempt to write outside buffer bounds')
+  for (var i = 0; i < nTransactions; ++i) {
+    var tx = readTransaction()
+    block.transactions.push(tx)
   }
 
-  if (!encoding) encoding = 'utf8'
+  return block
+}
 
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'hex':
-        return hexWrite(this, string, offset, length)
+Block.prototype.byteLength = function (headersOnly) {
+  if (headersOnly || !this.transactions) return 80
 
-      case 'utf8':
-      case 'utf-8':
-        return utf8Write(this, string, offset, length)
+  return 80 + varuint.encodingLength(this.transactions.length) + this.transactions.reduce(function (a, x) {
+    return a + x.byteLength()
+  }, 0)
+}
 
-      case 'ascii':
-        return asciiWrite(this, string, offset, length)
+Block.fromHex = function (hex) {
+  return Block.fromBuffer(Buffer.from(hex, 'hex'))
+}
 
-      case 'latin1':
-      case 'binary':
-        return latin1Write(this, string, offset, length)
+Block.prototype.getHash = function () {
+  return bcrypto.hash256(this.toBuffer(true))
+}
 
-      case 'base64':
-        // Warning: maxLength not taken into account in base64Write
-        return base64Write(this, string, offset, length)
+Block.prototype.getId = function () {
+  return this.getHash().reverse().toString('hex')
+}
 
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return ucs2Write(this, string, offset, length)
+Block.prototype.getUTCDate = function () {
+  var date = new Date(0) // epoch
+  date.setUTCSeconds(this.timestamp)
 
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
+  return date
 }
 
-Buffer.prototype.toJSON = function toJSON () {
-  return {
-    type: 'Buffer',
-    data: Array.prototype.slice.call(this._arr || this, 0)
+// TODO: buffer, offset compatibility
+Block.prototype.toBuffer = function (headersOnly) {
+  var buffer = Buffer.allocUnsafe(this.byteLength(headersOnly))
+
+  var offset = 0
+  function writeSlice (slice) {
+    slice.copy(buffer, offset)
+    offset += slice.length
   }
-}
 
-function base64Slice (buf, start, end) {
-  if (start === 0 && end === buf.length) {
-    return base64.fromByteArray(buf)
-  } else {
-    return base64.fromByteArray(buf.slice(start, end))
+  function writeInt32 (i) {
+    buffer.writeInt32LE(i, offset)
+    offset += 4
+  }
+  function writeUInt32 (i) {
+    buffer.writeUInt32LE(i, offset)
+    offset += 4
   }
-}
 
-function utf8Slice (buf, start, end) {
-  end = Math.min(buf.length, end)
-  var res = []
+  writeInt32(this.version)
+  writeSlice(this.prevHash)
+  writeSlice(this.merkleRoot)
+  writeUInt32(this.timestamp)
+  writeUInt32(this.bits)
+  writeUInt32(this.nonce)
 
-  var i = start
-  while (i < end) {
-    var firstByte = buf[i]
-    var codePoint = null
-    var bytesPerSequence = (firstByte > 0xEF) ? 4
-      : (firstByte > 0xDF) ? 3
-      : (firstByte > 0xBF) ? 2
-      : 1
+  if (headersOnly || !this.transactions) return buffer
 
-    if (i + bytesPerSequence <= end) {
-      var secondByte, thirdByte, fourthByte, tempCodePoint
+  varuint.encode(this.transactions.length, buffer, offset)
+  offset += varuint.encode.bytes
 
-      switch (bytesPerSequence) {
-        case 1:
-          if (firstByte < 0x80) {
-            codePoint = firstByte
-          }
-          break
-        case 2:
-          secondByte = buf[i + 1]
-          if ((secondByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
-            if (tempCodePoint > 0x7F) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 3:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
-            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 4:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          fourthByte = buf[i + 3]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
-            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
-              codePoint = tempCodePoint
-            }
-          }
-      }
-    }
+  this.transactions.forEach(function (tx) {
+    var txSize = tx.byteLength() // TODO: extract from toBuffer?
+    tx.toBuffer(buffer, offset)
+    offset += txSize
+  })
 
-    if (codePoint === null) {
-      // we did not generate a valid codePoint so insert a
-      // replacement char (U+FFFD) and advance only 1 byte
-      codePoint = 0xFFFD
-      bytesPerSequence = 1
-    } else if (codePoint > 0xFFFF) {
-      // encode to utf16 (surrogate pair dance)
-      codePoint -= 0x10000
-      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
-      codePoint = 0xDC00 | codePoint & 0x3FF
-    }
+  return buffer
+}
 
-    res.push(codePoint)
-    i += bytesPerSequence
-  }
+Block.prototype.toHex = function (headersOnly) {
+  return this.toBuffer(headersOnly).toString('hex')
+}
 
-  return decodeCodePointsArray(res)
+Block.calculateTarget = function (bits) {
+  var exponent = ((bits & 0xff000000) >> 24) - 3
+  var mantissa = bits & 0x007fffff
+  var target = Buffer.alloc(32, 0)
+  target.writeUInt32BE(mantissa, 28 - exponent)
+  return target
 }
 
-// Based on http://stackoverflow.com/a/22747272/680742, the browser with
-// the lowest limit is Chrome, with 0x10000 args.
-// We go 1 magnitude less, for safety
-var MAX_ARGUMENTS_LENGTH = 0x1000
+Block.calculateMerkleRoot = function (transactions) {
+  typeforce([{ getHash: types.Function }], transactions)
+  if (transactions.length === 0) throw TypeError('Cannot compute merkle root for zero transactions')
 
-function decodeCodePointsArray (codePoints) {
-  var len = codePoints.length
-  if (len <= MAX_ARGUMENTS_LENGTH) {
-    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
-  }
+  var hashes = transactions.map(function (transaction) {
+    return transaction.getHash()
+  })
 
-  // Decode in chunks to avoid "call stack size exceeded".
-  var res = ''
-  var i = 0
-  while (i < len) {
-    res += String.fromCharCode.apply(
-      String,
-      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
-    )
-  }
-  return res
+  return fastMerkleRoot(hashes, bcrypto.hash256)
 }
 
-function asciiSlice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
+Block.prototype.checkMerkleRoot = function () {
+  if (!this.transactions) return false
 
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i] & 0x7F)
-  }
-  return ret
+  var actualMerkleRoot = Block.calculateMerkleRoot(this.transactions)
+  return this.merkleRoot.compare(actualMerkleRoot) === 0
 }
 
-function latin1Slice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
+Block.prototype.checkProofOfWork = function () {
+  var hash = this.getHash().reverse()
+  var target = Block.calculateTarget(this.bits)
 
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i])
-  }
-  return ret
+  return hash.compare(target) <= 0
 }
 
-function hexSlice (buf, start, end) {
-  var len = buf.length
-
-  if (!start || start < 0) start = 0
-  if (!end || end < 0 || end > len) end = len
+module.exports = Block
 
-  var out = ''
-  for (var i = start; i < end; ++i) {
-    out += toHex(buf[i])
-  }
-  return out
-}
+},{"./crypto":47,"./transaction":78,"./types":80,"merkle-lib/fastRoot":122,"safe-buffer":128,"typeforce":139,"varuint-bitcoin":141}],46:[function(require,module,exports){
+var pushdata = require('pushdata-bitcoin')
+var varuint = require('varuint-bitcoin')
 
-function utf16leSlice (buf, start, end) {
-  var bytes = buf.slice(start, end)
-  var res = ''
-  for (var i = 0; i < bytes.length; i += 2) {
-    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
-  }
-  return res
+// https://github.com/feross/buffer/blob/master/index.js#L1127
+function verifuint (value, max) {
+  if (typeof value !== 'number') throw new Error('cannot write a non-number as a number')
+  if (value < 0) throw new Error('specified a negative value for writing an unsigned value')
+  if (value > max) throw new Error('RangeError: value out of range')
+  if (Math.floor(value) !== value) throw new Error('value has a fractional component')
 }
 
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length
-  start = ~~start
-  end = end === undefined ? len : ~~end
-
-  if (start < 0) {
-    start += len
-    if (start < 0) start = 0
-  } else if (start > len) {
-    start = len
-  }
-
-  if (end < 0) {
-    end += len
-    if (end < 0) end = 0
-  } else if (end > len) {
-    end = len
-  }
+function readUInt64LE (buffer, offset) {
+  var a = buffer.readUInt32LE(offset)
+  var b = buffer.readUInt32LE(offset + 4)
+  b *= 0x100000000
 
-  if (end < start) end = start
+  verifuint(b + a, 0x001fffffffffffff)
 
-  var newBuf = this.subarray(start, end)
-  // Return an augmented `Uint8Array` instance
-  newBuf.__proto__ = Buffer.prototype
-  return newBuf
+  return b + a
 }
 
-/*
- * Need to make sure that buffer isn't trying to write out of bounds.
- */
-function checkOffset (offset, ext, length) {
-  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
-  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+function writeUInt64LE (buffer, value, offset) {
+  verifuint(value, 0x001fffffffffffff)
+
+  buffer.writeInt32LE(value & -1, offset)
+  buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
+  return offset + 8
 }
 
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+// TODO: remove in 4.0.0?
+function readVarInt (buffer, offset) {
+  var result = varuint.decode(buffer, offset)
 
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
+  return {
+    number: result,
+    size: varuint.decode.bytes
   }
+}
 
-  return val
+// TODO: remove in 4.0.0?
+function writeVarInt (buffer, number, offset) {
+  varuint.encode(number, buffer, offset)
+  return varuint.encode.bytes
 }
 
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    checkOffset(offset, byteLength, this.length)
-  }
+module.exports = {
+  pushDataSize: pushdata.encodingLength,
+  readPushDataInt: pushdata.decode,
+  readUInt64LE: readUInt64LE,
+  readVarInt: readVarInt,
+  varIntBuffer: varuint.encode,
+  varIntSize: varuint.encodingLength,
+  writePushDataInt: pushdata.encode,
+  writeUInt64LE: writeUInt64LE,
+  writeVarInt: writeVarInt
+}
 
-  var val = this[offset + --byteLength]
-  var mul = 1
-  while (byteLength > 0 && (mul *= 0x100)) {
-    val += this[offset + --byteLength] * mul
-  }
+},{"pushdata-bitcoin":125,"varuint-bitcoin":141}],47:[function(require,module,exports){
+var createHash = require('create-hash')
 
-  return val
+function ripemd160 (buffer) {
+  return createHash('rmd160').update(buffer).digest()
 }
 
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  return this[offset]
+function sha1 (buffer) {
+  return createHash('sha1').update(buffer).digest()
 }
 
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return this[offset] | (this[offset + 1] << 8)
+function sha256 (buffer) {
+  return createHash('sha256').update(buffer).digest()
 }
 
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return (this[offset] << 8) | this[offset + 1]
+function hash160 (buffer) {
+  return ripemd160(sha256(buffer))
 }
 
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
+function hash256 (buffer) {
+  return sha256(sha256(buffer))
+}
 
-  return ((this[offset]) |
-      (this[offset + 1] << 8) |
-      (this[offset + 2] << 16)) +
-      (this[offset + 3] * 0x1000000)
+module.exports = {
+  hash160: hash160,
+  hash256: hash256,
+  ripemd160: ripemd160,
+  sha1: sha1,
+  sha256: sha256
 }
 
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
+},{"create-hash":87}],48:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var createHmac = require('create-hmac')
+var typeforce = require('typeforce')
+var types = require('./types')
 
-  return (this[offset] * 0x1000000) +
-    ((this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    this[offset + 3])
-}
+var BigInteger = require('bigi')
+var ECSignature = require('./ecsignature')
 
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+var ZERO = Buffer.alloc(1, 0)
+var ONE = Buffer.alloc(1, 1)
 
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-  mul *= 0x80
+var ecurve = require('ecurve')
+var secp256k1 = ecurve.getCurveByName('secp256k1')
 
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+// https://tools.ietf.org/html/rfc6979#section-3.2
+function deterministicGenerateK (hash, x, checkSig) {
+  typeforce(types.tuple(
+    types.Hash256bit,
+    types.Buffer256bit,
+    types.Function
+  ), arguments)
 
-  return val
-}
+  // Step A, ignored as hash already provided
+  // Step B
+  // Step C
+  var k = Buffer.alloc(32, 0)
+  var v = Buffer.alloc(32, 1)
 
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+  // Step D
+  k = createHmac('sha256', k)
+    .update(v)
+    .update(ZERO)
+    .update(x)
+    .update(hash)
+    .digest()
 
-  var i = byteLength
-  var mul = 1
-  var val = this[offset + --i]
-  while (i > 0 && (mul *= 0x100)) {
-    val += this[offset + --i] * mul
-  }
-  mul *= 0x80
+  // Step E
+  v = createHmac('sha256', k).update(v).digest()
 
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+  // Step F
+  k = createHmac('sha256', k)
+    .update(v)
+    .update(ONE)
+    .update(x)
+    .update(hash)
+    .digest()
 
-  return val
-}
+  // Step G
+  v = createHmac('sha256', k).update(v).digest()
 
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  if (!(this[offset] & 0x80)) return (this[offset])
-  return ((0xff - this[offset] + 1) * -1)
-}
+  // Step H1/H2a, ignored as tlen === qlen (256 bit)
+  // Step H2b
+  v = createHmac('sha256', k).update(v).digest()
 
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset] | (this[offset + 1] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
+  var T = BigInteger.fromBuffer(v)
 
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset + 1] | (this[offset] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
+  // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA
+  while (T.signum() <= 0 || T.compareTo(secp256k1.n) >= 0 || !checkSig(T)) {
+    k = createHmac('sha256', k)
+      .update(v)
+      .update(ZERO)
+      .digest()
 
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
+    v = createHmac('sha256', k).update(v).digest()
 
-  return (this[offset]) |
-    (this[offset + 1] << 8) |
-    (this[offset + 2] << 16) |
-    (this[offset + 3] << 24)
+    // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
+    // Step H2b again
+    v = createHmac('sha256', k).update(v).digest()
+    T = BigInteger.fromBuffer(v)
+  }
+
+  return T
 }
 
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
+var N_OVER_TWO = secp256k1.n.shiftRight(1)
 
-  return (this[offset] << 24) |
-    (this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    (this[offset + 3])
-}
+function sign (hash, d) {
+  typeforce(types.tuple(types.Hash256bit, types.BigInt), arguments)
 
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, true, 23, 4)
-}
+  var x = d.toBuffer(32)
+  var e = BigInteger.fromBuffer(hash)
+  var n = secp256k1.n
+  var G = secp256k1.G
 
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, false, 23, 4)
-}
+  var r, s
+  deterministicGenerateK(hash, x, function (k) {
+    var Q = G.multiply(k)
 
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, true, 52, 8)
-}
+    if (secp256k1.isInfinity(Q)) return false
 
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
-  offset = offset >>> 0
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, false, 52, 8)
-}
+    r = Q.affineX.mod(n)
+    if (r.signum() === 0) return false
 
-function checkInt (buf, value, offset, ext, max, min) {
-  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
-  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-}
+    s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
+    if (s.signum() === 0) return false
 
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
-  }
+    return true
+  })
 
-  var mul = 1
-  var i = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
+  // enforce low S values, see bip62: 'low s values in signatures'
+  if (s.compareTo(N_OVER_TWO) > 0) {
+    s = n.subtract(s)
   }
 
-  return offset + byteLength
+  return new ECSignature(r, s)
+}
+
+function verify (hash, signature, Q) {
+  typeforce(types.tuple(
+    types.Hash256bit,
+    types.ECSignature,
+    types.ECPoint
+  ), arguments)
+
+  var n = secp256k1.n
+  var G = secp256k1.G
+
+  var r = signature.r
+  var s = signature.s
+
+  // 1.4.1 Enforce r and s are both integers in the interval [1, n − 1]
+  if (r.signum() <= 0 || r.compareTo(n) >= 0) return false
+  if (s.signum() <= 0 || s.compareTo(n) >= 0) return false
+
+  // 1.4.2 H = Hash(M), already done by the user
+  // 1.4.3 e = H
+  var e = BigInteger.fromBuffer(hash)
+
+  // Compute s^-1
+  var sInv = s.modInverse(n)
+
+  // 1.4.4 Compute u1 = es^−1 mod n
+  //               u2 = rs^−1 mod n
+  var u1 = e.multiply(sInv).mod(n)
+  var u2 = r.multiply(sInv).mod(n)
+
+  // 1.4.5 Compute R = (xR, yR)
+  //               R = u1G + u2Q
+  var R = G.multiplyTwo(u1, Q, u2)
+
+  // 1.4.5 (cont.) Enforce R is not at infinity
+  if (secp256k1.isInfinity(R)) return false
+
+  // 1.4.6 Convert the field element R.x to an integer
+  var xR = R.affineX
+
+  // 1.4.7 Set v = xR mod n
+  var v = xR.mod(n)
+
+  // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
+  return v.equals(r)
+}
+
+module.exports = {
+  deterministicGenerateK: deterministicGenerateK,
+  sign: sign,
+  verify: verify,
+
+  // TODO: remove
+  __curve: secp256k1
 }
 
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  byteLength = byteLength >>> 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
+},{"./ecsignature":50,"./types":80,"bigi":39,"create-hmac":90,"ecurve":94,"safe-buffer":128,"typeforce":139}],49:[function(require,module,exports){
+var baddress = require('./address')
+var bcrypto = require('./crypto')
+var ecdsa = require('./ecdsa')
+var randomBytes = require('randombytes')
+var typeforce = require('typeforce')
+var types = require('./types')
+var wif = require('wif')
+
+var NETWORKS = require('./networks')
+var BigInteger = require('bigi')
+
+var ecurve = require('ecurve')
+var secp256k1 = ecdsa.__curve
+
+function ECPair (d, Q, options) {
+  if (options) {
+    typeforce({
+      compressed: types.maybe(types.Boolean),
+      network: types.maybe(types.Network)
+    }, options)
   }
 
-  var i = byteLength - 1
-  var mul = 1
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
+  options = options || {}
+
+  if (d) {
+    if (d.signum() <= 0) throw new Error('Private key must be greater than 0')
+    if (d.compareTo(secp256k1.n) >= 0) throw new Error('Private key must be less than the curve order')
+    if (Q) throw new TypeError('Unexpected publicKey parameter')
+
+    this.d = d
+  } else {
+    typeforce(types.ECPoint, Q)
+
+    this.__Q = Q
   }
 
-  return offset + byteLength
+  this.compressed = options.compressed === undefined ? true : options.compressed
+  this.network = options.network || NETWORKS.bitcoin
 }
 
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
-  this[offset] = (value & 0xff)
-  return offset + 1
-}
+Object.defineProperty(ECPair.prototype, 'Q', {
+  get: function () {
+    if (!this.__Q && this.d) {
+      this.__Q = secp256k1.G.multiply(this.d)
+    }
 
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  return offset + 2
-}
+    return this.__Q
+  }
+})
 
-Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  this[offset] = (value >>> 8)
-  this[offset + 1] = (value & 0xff)
-  return offset + 2
-}
+ECPair.fromPublicKeyBuffer = function (buffer, network) {
+  var Q = ecurve.Point.decodeFrom(secp256k1, buffer)
 
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  this[offset + 3] = (value >>> 24)
-  this[offset + 2] = (value >>> 16)
-  this[offset + 1] = (value >>> 8)
-  this[offset] = (value & 0xff)
-  return offset + 4
+  return new ECPair(null, Q, {
+    compressed: Q.compressed,
+    network: network
+  })
 }
 
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  this[offset] = (value >>> 24)
-  this[offset + 1] = (value >>> 16)
-  this[offset + 2] = (value >>> 8)
-  this[offset + 3] = (value & 0xff)
-  return offset + 4
-}
+ECPair.fromWIF = function (string, network) {
+  var decoded = wif.decode(string)
+  var version = decoded.version
 
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    var limit = Math.pow(2, (8 * byteLength) - 1)
+  // list of networks?
+  if (types.Array(network)) {
+    network = network.filter(function (x) {
+      return version === x.wif
+    }).pop()
 
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
+    if (!network) throw new Error('Unknown network version')
 
-  var i = 0
-  var mul = 1
-  var sub = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+  // otherwise, assume a network object (or default to bitcoin)
+  } else {
+    network = network || NETWORKS.bitcoin
+
+    if (version !== network.wif) throw new Error('Invalid network version')
   }
 
-  return offset + byteLength
+  var d = BigInteger.fromBuffer(decoded.privateKey)
+
+  return new ECPair(d, null, {
+    compressed: decoded.compressed,
+    network: network
+  })
 }
 
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    var limit = Math.pow(2, (8 * byteLength) - 1)
+ECPair.makeRandom = function (options) {
+  options = options || {}
 
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
+  var rng = options.rng || randomBytes
 
-  var i = byteLength - 1
-  var mul = 1
-  var sub = 0
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
+  var d
+  do {
+    var buffer = rng(32)
+    typeforce(types.Buffer256bit, buffer)
 
-  return offset + byteLength
-}
+    d = BigInteger.fromBuffer(buffer)
+  } while (d.signum() <= 0 || d.compareTo(secp256k1.n) >= 0)
 
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
-  if (value < 0) value = 0xff + value + 1
-  this[offset] = (value & 0xff)
-  return offset + 1
+  return new ECPair(d, null, options)
 }
 
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  return offset + 2
+ECPair.prototype.getAddress = function () {
+  return baddress.toBase58Check(bcrypto.hash160(this.getPublicKeyBuffer()), this.getNetwork().pubKeyHash)
 }
 
-Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  this[offset] = (value >>> 8)
-  this[offset + 1] = (value & 0xff)
-  return offset + 2
+ECPair.prototype.getNetwork = function () {
+  return this.network
 }
 
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  this[offset] = (value & 0xff)
-  this[offset + 1] = (value >>> 8)
-  this[offset + 2] = (value >>> 16)
-  this[offset + 3] = (value >>> 24)
-  return offset + 4
+ECPair.prototype.getPublicKeyBuffer = function () {
+  return this.Q.getEncoded(this.compressed)
 }
 
-Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (value < 0) value = 0xffffffff + value + 1
-  this[offset] = (value >>> 24)
-  this[offset + 1] = (value >>> 16)
-  this[offset + 2] = (value >>> 8)
-  this[offset + 3] = (value & 0xff)
-  return offset + 4
-}
+ECPair.prototype.sign = function (hash) {
+  if (!this.d) throw new Error('Missing private key')
 
-function checkIEEE754 (buf, value, offset, ext, max, min) {
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-  if (offset < 0) throw new RangeError('Index out of range')
+  return ecdsa.sign(hash, this.d)
 }
 
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 23, 4)
-  return offset + 4
-}
+ECPair.prototype.toWIF = function () {
+  if (!this.d) throw new Error('Missing private key')
 
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, true, noAssert)
+  return wif.encode(this.network.wif, this.d.toBuffer(32), this.compressed)
 }
 
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, false, noAssert)
+ECPair.prototype.verify = function (hash, signature) {
+  return ecdsa.verify(hash, signature, this.Q)
 }
 
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
-  value = +value
-  offset = offset >>> 0
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 52, 8)
-  return offset + 8
-}
+module.exports = ECPair
 
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, true, noAssert)
-}
+},{"./address":44,"./crypto":47,"./ecdsa":48,"./networks":53,"./types":80,"bigi":39,"ecurve":94,"randombytes":126,"typeforce":139,"wif":142}],50:[function(require,module,exports){
+(function (Buffer){
+var bip66 = require('bip66')
+var typeforce = require('typeforce')
+var types = require('./types')
 
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, false, noAssert)
-}
+var BigInteger = require('bigi')
 
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!start) start = 0
-  if (!end && end !== 0) end = this.length
-  if (targetStart >= target.length) targetStart = target.length
-  if (!targetStart) targetStart = 0
-  if (end > 0 && end < start) end = start
+function ECSignature (r, s) {
+  typeforce(types.tuple(types.BigInt, types.BigInt), arguments)
 
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
+  this.r = r
+  this.s = s
+}
 
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+ECSignature.parseCompact = function (buffer) {
+  typeforce(types.BufferN(65), buffer)
 
-  // Are we oob?
-  if (end > this.length) end = this.length
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start
-  }
+  var flagByte = buffer.readUInt8(0) - 27
+  if (flagByte !== (flagByte & 7)) throw new Error('Invalid signature parameter')
 
-  var len = end - start
-  var i
+  var compressed = !!(flagByte & 4)
+  var recoveryParam = flagByte & 3
+  var signature = ECSignature.fromRSBuffer(buffer.slice(1))
 
-  if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else if (len < 1000) {
-    // ascending copy from start
-    for (i = 0; i < len; ++i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else {
-    Uint8Array.prototype.set.call(
-      target,
-      this.subarray(start, start + len),
-      targetStart
-    )
+  return {
+    compressed: compressed,
+    i: recoveryParam,
+    signature: signature
   }
-
-  return len
 }
 
-// Usage:
-//    buffer.fill(number[, offset[, end]])
-//    buffer.fill(buffer[, offset[, end]])
-//    buffer.fill(string[, offset[, end]][, encoding])
-Buffer.prototype.fill = function fill (val, start, end, encoding) {
-  // Handle string cases:
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      encoding = start
-      start = 0
-      end = this.length
-    } else if (typeof end === 'string') {
-      encoding = end
-      end = this.length
-    }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0)
-      if (code < 256) {
-        val = code
-      }
-    }
-    if (encoding !== undefined && typeof encoding !== 'string') {
-      throw new TypeError('encoding must be a string')
-    }
-    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
-      throw new TypeError('Unknown encoding: ' + encoding)
-    }
-  } else if (typeof val === 'number') {
-    val = val & 255
-  }
+ECSignature.fromRSBuffer = function (buffer) {
+  typeforce(types.BufferN(64), buffer)
 
-  // Invalid ranges are not set to a default, so can range check early.
-  if (start < 0 || this.length < start || this.length < end) {
-    throw new RangeError('Out of range index')
-  }
+  var r = BigInteger.fromBuffer(buffer.slice(0, 32))
+  var s = BigInteger.fromBuffer(buffer.slice(32, 64))
+  return new ECSignature(r, s)
+}
 
-  if (end <= start) {
-    return this
-  }
+ECSignature.fromDER = function (buffer) {
+  var decode = bip66.decode(buffer)
+  var r = BigInteger.fromDERInteger(decode.r)
+  var s = BigInteger.fromDERInteger(decode.s)
 
-  start = start >>> 0
-  end = end === undefined ? this.length : end >>> 0
+  return new ECSignature(r, s)
+}
 
-  if (!val) val = 0
+// BIP62: 1 byte hashType flag (only 0x01, 0x02, 0x03, 0x81, 0x82 and 0x83 are allowed)
+ECSignature.parseScriptSignature = function (buffer) {
+  var hashType = buffer.readUInt8(buffer.length - 1)
+  var hashTypeMod = hashType & ~0x80
 
-  var i
-  if (typeof val === 'number') {
-    for (i = start; i < end; ++i) {
-      this[i] = val
-    }
-  } else {
-    var bytes = Buffer.isBuffer(val)
-      ? val
-      : new Buffer(val, encoding)
-    var len = bytes.length
-    for (i = 0; i < end - start; ++i) {
-      this[i + start] = bytes[i % len]
-    }
-  }
+  if (hashTypeMod <= 0x00 || hashTypeMod >= 0x04) throw new Error('Invalid hashType ' + hashType)
 
-  return this
+  return {
+    signature: ECSignature.fromDER(buffer.slice(0, -1)),
+    hashType: hashType
+  }
 }
 
-// HELPER FUNCTIONS
-// ================
+ECSignature.prototype.toCompact = function (i, compressed) {
+  if (compressed) {
+    i += 4
+  }
 
-var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
+  i += 27
 
-function base64clean (str) {
-  // Node strips out invalid characters like \n and \t from the string, base64-js does not
-  str = str.trim().replace(INVALID_BASE64_RE, '')
-  // Node converts strings with length < 2 to ''
-  if (str.length < 2) return ''
-  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
-  while (str.length % 4 !== 0) {
-    str = str + '='
-  }
-  return str
+  var buffer = Buffer.alloc(65)
+  buffer.writeUInt8(i, 0)
+  this.toRSBuffer(buffer, 1)
+  return buffer
 }
 
-function toHex (n) {
-  if (n < 16) return '0' + n.toString(16)
-  return n.toString(16)
+ECSignature.prototype.toDER = function () {
+  var r = Buffer.from(this.r.toDERInteger())
+  var s = Buffer.from(this.s.toDERInteger())
+
+  return bip66.encode(r, s)
 }
 
-function utf8ToBytes (string, units) {
-  units = units || Infinity
-  var codePoint
-  var length = string.length
-  var leadSurrogate = null
-  var bytes = []
+ECSignature.prototype.toRSBuffer = function (buffer, offset) {
+  buffer = buffer || Buffer.alloc(64)
+  this.r.toBuffer(32).copy(buffer, offset)
+  this.s.toBuffer(32).copy(buffer, offset + 32)
+  return buffer
+}
 
-  for (var i = 0; i < length; ++i) {
-    codePoint = string.charCodeAt(i)
+ECSignature.prototype.toScriptSignature = function (hashType) {
+  var hashTypeMod = hashType & ~0x80
+  if (hashTypeMod <= 0 || hashTypeMod >= 4) throw new Error('Invalid hashType ' + hashType)
 
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        }
+  var hashTypeBuffer = Buffer.alloc(1)
+  hashTypeBuffer.writeUInt8(hashType, 0)
 
-        // valid lead
-        leadSurrogate = codePoint
+  return Buffer.concat([this.toDER(), hashTypeBuffer])
+}
 
-        continue
-      }
+module.exports = ECSignature
 
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-        leadSurrogate = codePoint
-        continue
-      }
+}).call(this,require("buffer").Buffer)
+},{"./types":80,"bigi":39,"bip66":41,"buffer":5,"typeforce":139}],51:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var base58check = require('bs58check')
+var bcrypto = require('./crypto')
+var createHmac = require('create-hmac')
+var typeforce = require('typeforce')
+var types = require('./types')
+var NETWORKS = require('./networks')
 
-      // valid surrogate pair
-      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-    }
+var BigInteger = require('bigi')
+var ECPair = require('./ecpair')
 
-    leadSurrogate = null
+var ecurve = require('ecurve')
+var curve = ecurve.getCurveByName('secp256k1')
 
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint)
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else {
-      throw new Error('Invalid code point')
-    }
-  }
+function HDNode (keyPair, chainCode) {
+  typeforce(types.tuple('ECPair', types.Buffer256bit), arguments)
 
-  return bytes
-}
+  if (!keyPair.compressed) throw new TypeError('BIP32 only allows compressed keyPairs')
 
-function asciiToBytes (str) {
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    // Node's code seems to be doing this and not & 0x7F..
-    byteArray.push(str.charCodeAt(i) & 0xFF)
-  }
-  return byteArray
+  this.keyPair = keyPair
+  this.chainCode = chainCode
+  this.depth = 0
+  this.index = 0
+  this.parentFingerprint = 0x00000000
 }
 
-function utf16leToBytes (str, units) {
-  var c, hi, lo
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    if ((units -= 2) < 0) break
+HDNode.HIGHEST_BIT = 0x80000000
+HDNode.LENGTH = 78
+HDNode.MASTER_SECRET = Buffer.from('Bitcoin seed', 'utf8')
 
-    c = str.charCodeAt(i)
-    hi = c >> 8
-    lo = c % 256
-    byteArray.push(lo)
-    byteArray.push(hi)
-  }
+HDNode.fromSeedBuffer = function (seed, network) {
+  typeforce(types.tuple(types.Buffer, types.maybe(types.Network)), arguments)
 
-  return byteArray
-}
+  if (seed.length < 16) throw new TypeError('Seed should be at least 128 bits')
+  if (seed.length > 64) throw new TypeError('Seed should be at most 512 bits')
 
-function base64ToBytes (str) {
-  return base64.toByteArray(base64clean(str))
-}
+  var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
+  var IL = I.slice(0, 32)
+  var IR = I.slice(32)
 
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; ++i) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i]
-  }
-  return i
-}
+  // In case IL is 0 or >= n, the master key is invalid
+  // This is handled by the ECPair constructor
+  var pIL = BigInteger.fromBuffer(IL)
+  var keyPair = new ECPair(pIL, null, {
+    network: network
+  })
 
-// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView`
-function isArrayBufferView (obj) {
-  return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj)
+  return new HDNode(keyPair, IR)
 }
 
-function numberIsNaN (obj) {
-  return obj !== obj // eslint-disable-line no-self-compare
+HDNode.fromSeedHex = function (hex, network) {
+  return HDNode.fromSeedBuffer(Buffer.from(hex, 'hex'), network)
 }
 
-},{"base64-js":1,"ieee754":3}],3:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
+HDNode.fromBase58 = function (string, networks) {
+  var buffer = base58check.decode(string)
+  if (buffer.length !== 78) throw new Error('Invalid buffer length')
 
-  i += d
+  // 4 bytes: version bytes
+  var version = buffer.readUInt32BE(0)
+  var network
 
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+  // list of networks?
+  if (Array.isArray(networks)) {
+    network = networks.filter(function (x) {
+      return version === x.bip32.private ||
+             version === x.bip32.public
+    }).pop()
 
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+    if (!network) throw new Error('Unknown network version')
 
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
+  // otherwise, assume a network object (or default to bitcoin)
   } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
+    network = networks || NETWORKS.bitcoin
   }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
 
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
+  if (version !== network.bip32.private &&
+    version !== network.bip32.public) throw new Error('Invalid network version')
+
+  // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
+  var depth = buffer[4]
+
+  // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+  var parentFingerprint = buffer.readUInt32BE(5)
+  if (depth === 0) {
+    if (parentFingerprint !== 0x00000000) throw new Error('Invalid parent fingerprint')
+  }
+
+  // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
+  // This is encoded in MSB order. (0x00000000 if master key)
+  var index = buffer.readUInt32BE(9)
+  if (depth === 0 && index !== 0) throw new Error('Invalid index')
+
+  // 32 bytes: the chain code
+  var chainCode = buffer.slice(13, 45)
+  var keyPair
 
-  value = Math.abs(value)
+  // 33 bytes: private key data (0x00 + k)
+  if (version === network.bip32.private) {
+    if (buffer.readUInt8(45) !== 0x00) throw new Error('Invalid private key')
 
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
+    var d = BigInteger.fromBuffer(buffer.slice(46, 78))
+    keyPair = new ECPair(d, null, { network: network })
+
+  // 33 bytes: public key data (0x02 + X or 0x03 + X)
   } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
+    var Q = ecurve.Point.decodeFrom(curve, buffer.slice(45, 78))
+    // Q.compressed is assumed, if somehow this assumption is broken, `new HDNode` will throw
 
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
-    }
+    // Verify that the X coordinate in the public point corresponds to a point on the curve.
+    // If not, the extended public key is invalid.
+    curve.validate(Q)
+
+    keyPair = new ECPair(null, Q, { network: network })
   }
 
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
+  var hd = new HDNode(keyPair, chainCode)
+  hd.depth = depth
+  hd.index = index
+  hd.parentFingerprint = parentFingerprint
 
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
+  return hd
+}
 
-  buffer[offset + i - d] |= s * 128
+HDNode.prototype.getAddress = function () {
+  return this.keyPair.getAddress()
 }
 
-},{}],4:[function(require,module,exports){
-window.basex = require('base-x')
-},{"base-x":5}],5:[function(require,module,exports){
-// base-x encoding
-// Forked from https://github.com/cryptocoinjs/bs58
-// Originally written by Mike Hearn for BitcoinJ
-// Copyright (c) 2011 Google Inc
-// Ported to JavaScript by Stefan Thomas
-// Merged Buffer refactorings from base58-native by Stephen Pair
-// Copyright (c) 2013 BitPay Inc
+HDNode.prototype.getIdentifier = function () {
+  return bcrypto.hash160(this.keyPair.getPublicKeyBuffer())
+}
 
-var Buffer = require('safe-buffer').Buffer
+HDNode.prototype.getFingerprint = function () {
+  return this.getIdentifier().slice(0, 4)
+}
 
-module.exports = function base (ALPHABET) {
-  var ALPHABET_MAP = {}
-  var BASE = ALPHABET.length
-  var LEADER = ALPHABET.charAt(0)
+HDNode.prototype.getNetwork = function () {
+  return this.keyPair.getNetwork()
+}
 
-  // pre-compute lookup table
-  for (var z = 0; z < ALPHABET.length; z++) {
-    var x = ALPHABET.charAt(z)
+HDNode.prototype.getPublicKeyBuffer = function () {
+  return this.keyPair.getPublicKeyBuffer()
+}
 
-    if (ALPHABET_MAP[x] !== undefined) throw new TypeError(x + ' is ambiguous')
-    ALPHABET_MAP[x] = z
-  }
+HDNode.prototype.neutered = function () {
+  var neuteredKeyPair = new ECPair(null, this.keyPair.Q, {
+    network: this.keyPair.network
+  })
 
-  function encode (source) {
-    if (source.length === 0) return ''
+  var neutered = new HDNode(neuteredKeyPair, this.chainCode)
+  neutered.depth = this.depth
+  neutered.index = this.index
+  neutered.parentFingerprint = this.parentFingerprint
 
-    var digits = [0]
-    for (var i = 0; i < source.length; ++i) {
-      for (var j = 0, carry = source[i]; j < digits.length; ++j) {
-        carry += digits[j] << 8
-        digits[j] = carry % BASE
-        carry = (carry / BASE) | 0
-      }
+  return neutered
+}
 
-      while (carry > 0) {
-        digits.push(carry % BASE)
-        carry = (carry / BASE) | 0
-      }
-    }
+HDNode.prototype.sign = function (hash) {
+  return this.keyPair.sign(hash)
+}
 
-    var string = ''
+HDNode.prototype.verify = function (hash, signature) {
+  return this.keyPair.verify(hash, signature)
+}
 
-    // deal with leading zeros
-    for (var k = 0; source[k] === 0 && k < source.length - 1; ++k) string += ALPHABET[0]
-    // convert digits to a string
-    for (var q = digits.length - 1; q >= 0; --q) string += ALPHABET[digits[q]]
+HDNode.prototype.toBase58 = function (__isPrivate) {
+  if (__isPrivate !== undefined) throw new TypeError('Unsupported argument in 2.0.0')
 
-    return string
-  }
+  // Version
+  var network = this.keyPair.network
+  var version = (!this.isNeutered()) ? network.bip32.private : network.bip32.public
+  var buffer = Buffer.allocUnsafe(78)
 
-  function decodeUnsafe (string) {
-    if (string.length === 0) return Buffer.allocUnsafe(0)
+  // 4 bytes: version bytes
+  buffer.writeUInt32BE(version, 0)
 
-    var bytes = [0]
-    for (var i = 0; i < string.length; i++) {
-      var value = ALPHABET_MAP[string[i]]
-      if (value === undefined) return
+  // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
+  buffer.writeUInt8(this.depth, 4)
 
-      for (var j = 0, carry = value; j < bytes.length; ++j) {
-        carry += bytes[j] * BASE
-        bytes[j] = carry & 0xff
-        carry >>= 8
-      }
+  // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
+  buffer.writeUInt32BE(this.parentFingerprint, 5)
 
-      while (carry > 0) {
-        bytes.push(carry & 0xff)
-        carry >>= 8
-      }
-    }
+  // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
+  // This is encoded in big endian. (0x00000000 if master key)
+  buffer.writeUInt32BE(this.index, 9)
 
-    // deal with leading zeros
-    for (var k = 0; string[k] === LEADER && k < string.length - 1; ++k) {
-      bytes.push(0)
-    }
+  // 32 bytes: the chain code
+  this.chainCode.copy(buffer, 13)
 
-    return Buffer.from(bytes.reverse())
+  // 33 bytes: the public key or private key data
+  if (!this.isNeutered()) {
+    // 0x00 + k for private keys
+    buffer.writeUInt8(0, 45)
+    this.keyPair.d.toBuffer(32).copy(buffer, 46)
+
+  // 33 bytes: the public key
+  } else {
+    // X9.62 encoding for public keys
+    this.keyPair.getPublicKeyBuffer().copy(buffer, 45)
   }
 
-  function decode (string) {
-    var buffer = decodeUnsafe(string)
-    if (buffer) return buffer
+  return base58check.encode(buffer)
+}
 
-    throw new Error('Non-base' + BASE + ' character')
-  }
+// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
+HDNode.prototype.derive = function (index) {
+  typeforce(types.UInt32, index)
 
-  return {
-    encode: encode,
-    decodeUnsafe: decodeUnsafe,
-    decode: decode
+  var isHardened = index >= HDNode.HIGHEST_BIT
+  var data = Buffer.allocUnsafe(37)
+
+  // Hardened child
+  if (isHardened) {
+    if (this.isNeutered()) throw new TypeError('Could not derive hardened child key')
+
+    // data = 0x00 || ser256(kpar) || ser32(index)
+    data[0] = 0x00
+    this.keyPair.d.toBuffer(32).copy(data, 1)
+    data.writeUInt32BE(index, 33)
+
+  // Normal child
+  } else {
+    // data = serP(point(kpar)) || ser32(index)
+    //      = serP(Kpar) || ser32(index)
+    this.keyPair.getPublicKeyBuffer().copy(data, 0)
+    data.writeUInt32BE(index, 33)
   }
-}
 
-},{"safe-buffer":6}],6:[function(require,module,exports){
-module.exports = require('buffer')
+  var I = createHmac('sha512', this.chainCode).update(data).digest()
+  var IL = I.slice(0, 32)
+  var IR = I.slice(32)
 
-},{"buffer":2}]},{},[4])(4)
-});</script>
-        <script>(function (root) {
-   "use strict";
+  var pIL = BigInteger.fromBuffer(IL)
 
-/***** unorm.js *****/
+  // In case parse256(IL) >= n, proceed with the next value for i
+  if (pIL.compareTo(curve.n) >= 0) {
+    return this.derive(index + 1)
+  }
 
-/*
- * UnicodeNormalizer 1.0.0
- * Copyright (c) 2008 Matsuza
- * Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
- * $Date: 2008-06-05 16:44:17 +0200 (Thu, 05 Jun 2008) $
- * $Rev: 13309 $
- */
+  // Private parent key -> private child key
+  var derivedKeyPair
+  if (!this.isNeutered()) {
+    // ki = parse256(IL) + kpar (mod n)
+    var ki = pIL.add(this.keyPair.d).mod(curve.n)
 
-   var DEFAULT_FEATURE = [null, 0, {}];
-   var CACHE_THRESHOLD = 10;
-   var SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7, LCount = 19, VCount = 21, TCount = 28;
-   var NCount = VCount * TCount; // 588
-   var SCount = LCount * NCount; // 11172
+    // In case ki == 0, proceed with the next value for i
+    if (ki.signum() === 0) {
+      return this.derive(index + 1)
+    }
 
-   var UChar = function(cp, feature){
-      this.codepoint = cp;
-      this.feature = feature;
-   };
+    derivedKeyPair = new ECPair(ki, null, {
+      network: this.keyPair.network
+    })
 
-   // Strategies
-   var cache = {};
-   var cacheCounter = [];
-   for (var i = 0; i <= 0xFF; ++i){
-      cacheCounter[i] = 0;
-   }
+  // Public parent key -> public child key
+  } else {
+    // Ki = point(parse256(IL)) + Kpar
+    //    = G*IL + Kpar
+    var Ki = curve.G.multiply(pIL).add(this.keyPair.Q)
 
-   function fromCache(next, cp, needFeature){
-      var ret = cache[cp];
-      if(!ret){
-         ret = next(cp, needFeature);
-         if(!!ret.feature && ++cacheCounter[(cp >> 8) & 0xFF] > CACHE_THRESHOLD){
-            cache[cp] = ret;
-         }
-      }
-      return ret;
-   }
+    // In case Ki is the point at infinity, proceed with the next value for i
+    if (curve.isInfinity(Ki)) {
+      return this.derive(index + 1)
+    }
 
-   function fromData(next, cp, needFeature){
-      var hash = cp & 0xFF00;
-      var dunit = UChar.udata[hash] || {};
-      var f = dunit[cp];
-      return f ? new UChar(cp, f) : new UChar(cp, DEFAULT_FEATURE);
-   }
-   function fromCpOnly(next, cp, needFeature){
-      return !!needFeature ? next(cp, needFeature) : new UChar(cp, null);
-   }
-   function fromRuleBasedJamo(next, cp, needFeature){
-      var j;
-      if(cp < LBase || (LBase + LCount <= cp && cp < SBase) || (SBase + SCount < cp)){
-         return next(cp, needFeature);
-      }
-      if(LBase <= cp && cp < LBase + LCount){
-         var c = {};
-         var base = (cp - LBase) * VCount;
-         for (j = 0; j < VCount; ++j){
-            c[VBase + j] = SBase + TCount * (j + base);
-         }
-         return new UChar(cp, [,,c]);
-      }
+    derivedKeyPair = new ECPair(null, Ki, {
+      network: this.keyPair.network
+    })
+  }
 
-      var SIndex = cp - SBase;
-      var TIndex = SIndex % TCount;
-      var feature = [];
-      if(TIndex !== 0){
-         feature[0] = [SBase + SIndex - TIndex, TBase + TIndex];
-      } else {
-         feature[0] = [LBase + Math.floor(SIndex / NCount), VBase + Math.floor((SIndex % NCount) / TCount)];
-         feature[2] = {};
-         for (j = 1; j < TCount; ++j){
-            feature[2][TBase + j] = cp + j;
-         }
-      }
-      return new UChar(cp, feature);
-   }
-   function fromCpFilter(next, cp, needFeature){
-      return cp < 60 || 13311 < cp && cp < 42607 ? new UChar(cp, DEFAULT_FEATURE) : next(cp, needFeature);
-   }
+  var hd = new HDNode(derivedKeyPair, IR)
+  hd.depth = this.depth + 1
+  hd.index = index
+  hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
 
-   var strategies = [fromCpFilter, fromCache, fromCpOnly, fromRuleBasedJamo, fromData];
+  return hd
+}
 
-   UChar.fromCharCode = strategies.reduceRight(function (next, strategy) {
-      return function (cp, needFeature) {
-         return strategy(next, cp, needFeature);
-      };
-   }, null);
+HDNode.prototype.deriveHardened = function (index) {
+  typeforce(types.UInt31, index)
 
-   UChar.isHighSurrogate = function(cp){
-      return cp >= 0xD800 && cp <= 0xDBFF;
-   };
-   UChar.isLowSurrogate = function(cp){
-      return cp >= 0xDC00 && cp <= 0xDFFF;
-   };
+  // Only derives hardened private keys by default
+  return this.derive(index + HDNode.HIGHEST_BIT)
+}
 
-   UChar.prototype.prepFeature = function(){
-      if(!this.feature){
-         this.feature = UChar.fromCharCode(this.codepoint, true).feature;
-      }
-   };
+// Private === not neutered
+// Public === neutered
+HDNode.prototype.isNeutered = function () {
+  return !(this.keyPair.d)
+}
 
-   UChar.prototype.toString = function(){
-      if(this.codepoint < 0x10000){
-         return String.fromCharCode(this.codepoint);
-      } else {
-         var x = this.codepoint - 0x10000;
-         return String.fromCharCode(Math.floor(x / 0x400) + 0xD800, x % 0x400 + 0xDC00);
-      }
-   };
+HDNode.prototype.derivePath = function (path) {
+  typeforce(types.BIP32Path, path)
 
-   UChar.prototype.getDecomp = function(){
-      this.prepFeature();
-      return this.feature[0] || null;
-   };
+  var splitPath = path.split('/')
+  if (splitPath[0] === 'm') {
+    if (this.parentFingerprint) {
+      throw new Error('Not a master node')
+    }
 
-   UChar.prototype.isCompatibility = function(){
-      this.prepFeature();
-      return !!this.feature[1] && (this.feature[1] & (1 << 8));
-   };
-   UChar.prototype.isExclude = function(){
-      this.prepFeature();
-      return !!this.feature[1] && (this.feature[1] & (1 << 9));
-   };
-   UChar.prototype.getCanonicalClass = function(){
-      this.prepFeature();
-      return !!this.feature[1] ? (this.feature[1] & 0xff) : 0;
-   };
-   UChar.prototype.getComposite = function(following){
-      this.prepFeature();
-      if(!this.feature[2]){
-         return null;
-      }
-      var cp = this.feature[2][following.codepoint];
-      return cp ? UChar.fromCharCode(cp) : null;
-   };
+    splitPath = splitPath.slice(1)
+  }
 
-   var UCharIterator = function(str){
-      this.str = str;
-      this.cursor = 0;
-   };
-   UCharIterator.prototype.next = function(){
-      if(!!this.str && this.cursor < this.str.length){
-         var cp = this.str.charCodeAt(this.cursor++);
-         var d;
-         if(UChar.isHighSurrogate(cp) && this.cursor < this.str.length && UChar.isLowSurrogate((d = this.str.charCodeAt(this.cursor)))){
-            cp = (cp - 0xD800) * 0x400 + (d -0xDC00) + 0x10000;
-            ++this.cursor;
-         }
-         return UChar.fromCharCode(cp);
-      } else {
-         this.str = null;
-         return null;
-      }
-   };
+  return splitPath.reduce(function (prevHd, indexStr) {
+    var index
+    if (indexStr.slice(-1) === "'") {
+      index = parseInt(indexStr.slice(0, -1), 10)
+      return prevHd.deriveHardened(index)
+    } else {
+      index = parseInt(indexStr, 10)
+      return prevHd.derive(index)
+    }
+  }, this)
+}
 
-   var RecursDecompIterator = function(it, cano){
-      this.it = it;
-      this.canonical = cano;
-      this.resBuf = [];
-   };
+module.exports = HDNode
 
-   RecursDecompIterator.prototype.next = function(){
-      function recursiveDecomp(cano, uchar){
-         var decomp = uchar.getDecomp();
-         if(!!decomp && !(cano && uchar.isCompatibility())){
-            var ret = [];
-            for(var i = 0; i < decomp.length; ++i){
-               var a = recursiveDecomp(cano, UChar.fromCharCode(decomp[i]));
-                ret = ret.concat(a);
-            }
-            return ret;
-         } else {
-            return [uchar];
-         }
-      }
-      if(this.resBuf.length === 0){
-         var uchar = this.it.next();
-         if(!uchar){
-            return null;
-         }
-         this.resBuf = recursiveDecomp(this.canonical, uchar);
-      }
-      return this.resBuf.shift();
-   };
+},{"./crypto":47,"./ecpair":49,"./networks":53,"./types":80,"bigi":39,"bs58check":85,"create-hmac":90,"ecurve":94,"safe-buffer":128,"typeforce":139}],52:[function(require,module,exports){
+var script = require('./script')
 
-   var DecompIterator = function(it){
-      this.it = it;
-      this.resBuf = [];
-   };
+var templates = require('./templates')
+for (var key in templates) {
+  script[key] = templates[key]
+}
 
-   DecompIterator.prototype.next = function(){
-      var cc;
-      if(this.resBuf.length === 0){
-         do{
-            var uchar = this.it.next();
-            if(!uchar){
-               break;
-            }
-            cc = uchar.getCanonicalClass();
-            var inspt = this.resBuf.length;
-            if(cc !== 0){
-               for(; inspt > 0; --inspt){
-                  var uchar2 = this.resBuf[inspt - 1];
-                  var cc2 = uchar2.getCanonicalClass();
-                  if(cc2 <= cc){
-                     break;
-                  }
-               }
-            }
-            this.resBuf.splice(inspt, 0, uchar);
-         } while(cc !== 0);
-      }
-      return this.resBuf.shift();
-   };
+module.exports = {
+  bufferutils: require('./bufferutils'), // TODO: remove in 4.0.0
 
-   var CompIterator = function(it){
-      this.it = it;
-      this.procBuf = [];
-      this.resBuf = [];
-      this.lastClass = null;
-   };
+  Block: require('./block'),
+  ECPair: require('./ecpair'),
+  ECSignature: require('./ecsignature'),
+  HDNode: require('./hdnode'),
+  Transaction: require('./transaction'),
+  TransactionBuilder: require('./transaction_builder'),
 
-   CompIterator.prototype.next = function(){
-      while(this.resBuf.length === 0){
-         var uchar = this.it.next();
-         if(!uchar){
-            this.resBuf = this.procBuf;
-            this.procBuf = [];
-            break;
-         }
-         if(this.procBuf.length === 0){
-            this.lastClass = uchar.getCanonicalClass();
-            this.procBuf.push(uchar);
-         } else {
-            var starter = this.procBuf[0];
-            var composite = starter.getComposite(uchar);
-            var cc = uchar.getCanonicalClass();
-            if(!!composite && (this.lastClass < cc || this.lastClass === 0)){
-               this.procBuf[0] = composite;
-            } else {
-               if(cc === 0){
-                  this.resBuf = this.procBuf;
-                  this.procBuf = [];
-               }
-               this.lastClass = cc;
-               this.procBuf.push(uchar);
-            }
-         }
-      }
-      return this.resBuf.shift();
-   };
+  address: require('./address'),
+  crypto: require('./crypto'),
+  networks: require('./networks'),
+  opcodes: require('bitcoin-ops'),
+  script: script
+}
 
-   var createIterator = function(mode, str){
-      switch(mode){
-         case "NFD":
-            return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true));
-         case "NFKD":
-            return new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false));
-         case "NFC":
-            return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), true)));
-         case "NFKC":
-            return new CompIterator(new DecompIterator(new RecursDecompIterator(new UCharIterator(str), false)));
-      }
-      throw mode + " is invalid";
-   };
-   var normalize = function(mode, str){
-      var it = createIterator(mode, str);
-      var ret = "";
-      var uchar;
-      while(!!(uchar = it.next())){
-         ret += uchar.toString();
-      }
-      return ret;
-   };
+},{"./address":44,"./block":45,"./bufferutils":46,"./crypto":47,"./ecpair":49,"./ecsignature":50,"./hdnode":51,"./networks":53,"./script":54,"./templates":56,"./transaction":78,"./transaction_builder":79,"bitcoin-ops":42}],53:[function(require,module,exports){
+// https://en.bitcoin.it/wiki/List_of_address_prefixes
+// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731
+
+module.exports = {
+  bitcoin: {
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'bc',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 0x00,
+    scriptHash: 0x05,
+    wif: 0x80
+  },
+  testnet: {
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'tb',
+    bip32: {
+      public: 0x043587cf,
+      private: 0x04358394
+    },
+    pubKeyHash: 0x6f,
+    scriptHash: 0xc4,
+    wif: 0xef
+  },
+  litecoin: {
+    messagePrefix: '\x19Litecoin Signed Message:\n',
+    bip32: {
+      public: 0x019da462,
+      private: 0x019d9cfe
+    },
+    pubKeyHash: 0x30,
+    scriptHash: 0x32,
+    wif: 0xb0
+  }
+}
 
-   /* API functions */
-   function nfd(str){
-      return normalize("NFD", str);
-   }
+},{}],54:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bip66 = require('bip66')
+var pushdata = require('pushdata-bitcoin')
+var typeforce = require('typeforce')
+var types = require('./types')
+var scriptNumber = require('./script_number')
 
-   function nfkd(str){
-      return normalize("NFKD", str);
-   }
+var OPS = require('bitcoin-ops')
+var REVERSE_OPS = require('bitcoin-ops/map')
+var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1
 
-   function nfc(str){
-      return normalize("NFC", str);
-   }
+function isOPInt (value) {
+  return types.Number(value) &&
+    ((value === OPS.OP_0) ||
+    (value >= OPS.OP_1 && value <= OPS.OP_16) ||
+    (value === OPS.OP_1NEGATE))
+}
 
-   function nfkc(str){
-      return normalize("NFKC", str);
-   }
+function isPushOnlyChunk (value) {
+  return types.Buffer(value) || isOPInt(value)
+}
 
-/* Unicode data */
-UChar.udata={
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-65024:{65040:[[44],256],65041:[[12289],256],65042:[[12290],256],65043:[[58],256],65044:[[59],256],65045:[[33],256],65046:[[63],256],65047:[[12310],256],65048:[[12311],256],65049:[[8230],256],65056:[,230],65057:[,230],65058:[,230],65059:[,230],65060:[,230],65061:[,230],65062:[,230],65063:[,220],65064:[,220],65065:[,220],65066:[,220],65067:[,220],65068:[,220],65069:[,220],65072:[[8229],256],65073:[[8212],256],65074:[[8211],256],65075:[[95],256],65076:[[95],256],65077:[[40],256],65078:[[41],256],65079:[[123],256],65080:[[125],256],65081:[[12308],256],65082:[[12309],256],65083:[[12304],256],65084:[[12305],256],65085:[[12298],256],65086:[[12299],256],65087:[[12296],256],65088:[[12297],256],65089:[[12300],256],65090:[[12301],256],65091:[[12302],256],65092:[[12303],256],65095:[[91],256],65096:[[93],256],65097:[[8254],256],65098:[[8254],256],65099:[[8254],256],65100:[[8254],256],65101:[[95],256],65102:[[95],256],65103:[[95],256],65104:[[44],256],65105:[[12289],256],65106:[[46],256],65108:[[59],256],65109:[[58],256],65110:[[63],256],65111:[[33],256],65112:[[8212],256],65113:[[40],256],65114:[[41],256],65115:[[123],256],65116:[[125],256],65117:[[12308],256],65118:[[12309],256],65119:[[35],256],65120:[[38],256],65121:[[42],256],65122:[[43],256],65123:[[45],256],65124:[[60],256],65125:[[62],256],65126:[[61],256],65128:[[92],256],65129:[[36],256],65130:[[37],256],65131:[[64],256],65136:[[32,1611],256],65137:[[1600,1611],256],65138:[[32,1612],256],65140:[[32,1613],256],65142:[[32,1614],256],65143:[[1600,1614],256],65144:[[32,1615],256],65145:[[1600,1615],256],65146:[[32,1616],256],65147:[[1600,1616],256],65148:[[32,1617],256],65149:[[1600,1617],256],65150:[[32,1618],256],65151:[[1600,1618],256],65152:[[1569],256],65153:[[1570],256],65154:[[1570],256],65155:[[1571],256],65156:[[1571],256],65157:[[1572],256],65158:[[1572],256],65159:[[1573],256],65160:[[1573],256],65161:[[1574],256],65162:[[1574],256],65163:[[1574],256],65164:[[1574],256],65165:[[1575],256],65166:[[1575],256],65167:[[1576],256],65168:[[1576],256],65169:[[1576],256],65170:[[1576],256],65171:[[1577],256],65172:[[1577],256],65173:[[1578],256],65174:[[1578],256],65175:[[1578],256],65176:[[1578],256],65177:[[1579],256],65178:[[1579],256],65179:[[1579],256],65180:[[1579],256],65181:[[1580],256],65182:[[1580],256],65183:[[1580],256],65184:[[1580],256],65185:[[1581],256],65186:[[1581],256],65187:[[1581],256],65188:[[1581],256],65189:[[1582],256],65190:[[1582],256],65191:[[1582],256],65192:[[1582],256],65193:[[1583],256],65194:[[1583],256],65195:[[1584],256],65196:[[1584],256],65197:[[1585],256],65198:[[1585],256],65199:[[1586],256],65200:[[1586],256],65201:[[1587],256],65202:[[1587],256],65203:[[1587],256],65204:[[1587],256],65205:[[1588],256],65206:[[1588],256],65207:[[1588],256],65208:[[1588],256],65209:[[1589],256],65210:[[1589],256],65211:[[1589],256],65212:[[1589],256],65213:[[1590],256],65214:[[1590],256],65215:[[1590],256],65216:[[1590],256],65217:[[1591],256],65218:[[1591],256],65219:[[1591],256],65220:[[1591],256],65221:[[1592],256],65222:[[1592],256],65223:[[1592],256],65224:[[1592],256],65225:[[1593],256],65226:[[1593],256],65227:[[1593],256],65228:[[1593],256],65229:[[1594],256],65230:[[1594],256],65231:[[1594],256],65232:[[1594],256],65233:[[1601],256],65234:[[1601],256],65235:[[1601],256],65236:[[1601],256],65237:[[1602],256],65238:[[1602],256],65239:[[1602],256],65240:[[1602],256],65241:[[1603],256],65242:[[1603],256],65243:[[1603],256],65244:[[1603],256],65245:[[1604],256],65246:[[1604],256],65247:[[1604],256],65248:[[1604],256],65249:[[1605],256],65250:[[1605],256],65251:[[1605],256],65252:[[1605],256],65253:[[1606],256],65254:[[1606],256],65255:[[1606],256],65256:[[1606],256],65257:[[1607],256],65258:[[1607],256],65259:[[1607],256],65260:[[1607],256],65261:[[1608],256],65262:[[1608],256],65263:[[1609],256],65264:[[1609],256],65265:[[1610],256],65266:[[1610],256],65267:[[1610],256],65268:[[1610],256],65269:[[1604,1570],256],65270:[[1604,1570],256],65271:[[1604,1571],256],65272:[[1604,1571],256],65273:[[1604,1573],256],65274:[[1604,1573],256],65275:[[1604,1575],256],65276:[[1604,1575],256]},
-65280:{65281:[[33],256],65282:[[34],256],65283:[[35],256],65284:[[36],256],65285:[[37],256],65286:[[38],256],65287:[[39],256],65288:[[40],256],65289:[[41],256],65290:[[42],256],65291:[[43],256],65292:[[44],256],65293:[[45],256],65294:[[46],256],65295:[[47],256],65296:[[48],256],65297:[[49],256],65298:[[50],256],65299:[[51],256],65300:[[52],256],65301:[[53],256],65302:[[54],256],65303:[[55],256],65304:[[56],256],65305:[[57],256],65306:[[58],256],65307:[[59],256],65308:[[60],256],65309:[[61],256],65310:[[62],256],65311:[[63],256],65312:[[64],256],65313:[[65],256],65314:[[66],256],65315:[[67],256],65316:[[68],256],65317:[[69],256],65318:[[70],256],65319:[[71],256],65320:[[72],256],65321:[[73],256],65322:[[74],256],65323:[[75],256],65324:[[76],256],65325:[[77],256],65326:[[78],256],65327:[[79],256],65328:[[80],256],65329:[[81],256],65330:[[82],256],65331:[[83],256],65332:[[84],256],65333:[[85],256],65334:[[86],256],65335:[[87],256],65336:[[88],256],65337:[[89],256],65338:[[90],256],65339:[[91],256],65340:[[92],256],65341:[[93],256],65342:[[94],256],65343:[[95],256],65344:[[96],256],65345:[[97],256],65346:[[98],256],65347:[[99],256],65348:[[100],256],65349:[[101],256],65350:[[102],256],65351:[[103],256],65352:[[104],256],65353:[[105],256],65354:[[106],256],65355:[[107],256],65356:[[108],256],65357:[[109],256],65358:[[110],256],65359:[[111],256],65360:[[112],256],65361:[[113],256],65362:[[114],256],65363:[[115],256],65364:[[116],256],65365:[[117],256],65366:[[118],256],65367:[[119],256],65368:[[120],256],65369:[[121],256],65370:[[122],256],65371:[[123],256],65372:[[124],256],65373:[[125],256],65374:[[126],256],65375:[[10629],256],65376:[[10630],256],65377:[[12290],256],65378:[[12300],256],65379:[[12301],256],65380:[[12289],256],65381:[[12539],256],65382:[[12530],256],65383:[[12449],256],65384:[[12451],256],65385:[[12453],256],65386:[[12455],256],65387:[[12457],256],65388:[[12515],256],65389:[[12517],256],65390:[[12519],256],65391:[[12483],256],65392:[[12540],256],65393:[[12450],256],65394:[[12452],256],65395:[[12454],256],65396:[[12456],256],65397:[[12458],256],65398:[[12459],256],65399:[[12461],256],65400:[[12463],256],65401:[[12465],256],65402:[[12467],256],65403:[[12469],256],65404:[[12471],256],65405:[[12473],256],65406:[[12475],256],65407:[[12477],256],65408:[[12479],256],65409:[[12481],256],65410:[[12484],256],65411:[[12486],256],65412:[[12488],256],65413:[[12490],256],65414:[[12491],256],65415:[[12492],256],65416:[[12493],256],65417:[[12494],256],65418:[[12495],256],65419:[[12498],256],65420:[[12501],256],65421:[[12504],256],65422:[[12507],256],65423:[[12510],256],65424:[[12511],256],65425:[[12512],256],65426:[[12513],256],65427:[[12514],256],65428:[[12516],256],65429:[[12518],256],65430:[[12520],256],65431:[[12521],256],65432:[[12522],256],65433:[[12523],256],65434:[[12524],256],65435:[[12525],256],65436:[[12527],256],65437:[[12531],256],65438:[[12441],256],65439:[[12442],256],65440:[[12644],256],65441:[[12593],256],65442:[[12594],256],65443:[[12595],256],65444:[[12596],256],65445:[[12597],256],65446:[[12598],256],65447:[[12599],256],65448:[[12600],256],65449:[[12601],256],65450:[[12602],256],65451:[[12603],256],65452:[[12604],256],65453:[[12605],256],65454:[[12606],256],65455:[[12607],256],65456:[[12608],256],65457:[[12609],256],65458:[[12610],256],65459:[[12611],256],65460:[[12612],256],65461:[[12613],256],65462:[[12614],256],65463:[[12615],256],65464:[[12616],256],65465:[[12617],256],65466:[[12618],256],65467:[[12619],256],65468:[[12620],256],65469:[[12621],256],65470:[[12622],256],65474:[[12623],256],65475:[[12624],256],65476:[[12625],256],65477:[[12626],256],65478:[[12627],256],65479:[[12628],256],65482:[[12629],256],65483:[[12630],256],65484:[[12631],256],65485:[[12632],256],65486:[[12633],256],65487:[[12634],256],65490:[[12635],256],65491:[[12636],256],65492:[[12637],256],65493:[[12638],256],65494:[[12639],256],65495:[[12640],256],65498:[[12641],256],65499:[[12642],256],65500:[[12643],256],65504:[[162],256],65505:[[163],256],65506:[[172],256],65507:[[175],256],65508:[[166],256],65509:[[165],256],65510:[[8361],256],65512:[[9474],256],65513:[[8592],256],65514:[[8593],256],65515:[[8594],256],65516:[[8595],256],65517:[[9632],256],65518:[[9675],256]}
+function isPushOnly (value) {
+  return types.Array(value) && value.every(isPushOnlyChunk)
+}
 
-};
+function asMinimalOP (buffer) {
+  if (buffer.length === 0) return OPS.OP_0
+  if (buffer.length !== 1) return
+  if (buffer[0] >= 1 && buffer[0] <= 16) return OP_INT_BASE + buffer[0]
+  if (buffer[0] === 0x81) return OPS.OP_1NEGATE
+}
 
-   /***** Module to export */
-   var unorm = {
-      nfc: nfc,
-      nfd: nfd,
-      nfkc: nfkc,
-      nfkd: nfkd
-   };
+function compile (chunks) {
+  // TODO: remove me
+  if (Buffer.isBuffer(chunks)) return chunks
 
-   /*globals module:true,define:true*/
+  typeforce(types.Array, chunks)
 
-   // CommonJS
-   if (typeof module === "object") {
-      module.exports = unorm;
+  var bufferSize = chunks.reduce(function (accum, chunk) {
+    // data chunk
+    if (Buffer.isBuffer(chunk)) {
+      // adhere to BIP62.3, minimal push policy
+      if (chunk.length === 1 && asMinimalOP(chunk) !== undefined) {
+        return accum + 1
+      }
 
-   // AMD
-   } else if (typeof define === "function" && define.amd) {
-      define("unorm", function () {
-         return unorm;
-      });
+      return accum + pushdata.encodingLength(chunk.length) + chunk.length
+    }
 
-   // Global
-   } else {
-      root.unorm = unorm;
-   }
+    // opcode
+    return accum + 1
+  }, 0.0)
 
-   /***** Export as shim for String::normalize method *****/
-   /*
-      http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#november_8_2013_draft_rev_21
+  var buffer = Buffer.allocUnsafe(bufferSize)
+  var offset = 0
 
-      21.1.3.12 String.prototype.normalize(form="NFC")
-      When the normalize method is called with one argument form, the following steps are taken:
+  chunks.forEach(function (chunk) {
+    // data chunk
+    if (Buffer.isBuffer(chunk)) {
+      // adhere to BIP62.3, minimal push policy
+      var opcode = asMinimalOP(chunk)
+      if (opcode !== undefined) {
+        buffer.writeUInt8(opcode, offset)
+        offset += 1
+        return
+      }
 
-      1. Let O be CheckObjectCoercible(this value).
-      2. Let S be ToString(O).
-      3. ReturnIfAbrupt(S).
-      4. If form is not provided or undefined let form be "NFC".
-      5. Let f be ToString(form).
-      6. ReturnIfAbrupt(f).
-      7. If f is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw a RangeError Exception.
-      8. Let ns be the String value is the result of normalizing S into the normalization form named by f as specified in Unicode Standard Annex #15, UnicodeNormalizatoin Forms.
-      9. Return ns.
+      offset += pushdata.encode(buffer, chunk.length, offset)
+      chunk.copy(buffer, offset)
+      offset += chunk.length
 
-      The length property of the normalize method is 0.
+    // opcode
+    } else {
+      buffer.writeUInt8(chunk, offset)
+      offset += 1
+    }
+  })
 
-      *NOTE* The normalize function is intentionally generic; it does not require that its this value be a String object. Therefore it can be transferred to other kinds of objects for use as a method.
-   */
-    unorm.shimApplied = false;
+  if (offset !== buffer.length) throw new Error('Could not decode chunks')
+  return buffer
+}
 
-   if (!String.prototype.normalize) {
-      String.prototype.normalize = function(form) {
-         var str = "" + this;
-         form =  form === undefined ? "NFC" : form;
+function decompile (buffer) {
+  // TODO: remove me
+  if (types.Array(buffer)) return buffer
 
-         if (form === "NFC") {
-            return unorm.nfc(str);
-         } else if (form === "NFD") {
-            return unorm.nfd(str);
-         } else if (form === "NFKC") {
-            return unorm.nfkc(str);
-         } else if (form === "NFKD") {
-            return unorm.nfkd(str);
-         } else {
-            throw new RangeError("Invalid normalization form: " + form);
-         }
-      };
+  typeforce(types.Buffer, buffer)
 
-      unorm.shimApplied = true;
-   }
-}(this));
-</script>
-        <script>/*! jQuery v2.1.1 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license */
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-      var prevRow  = new Array(str2.length + 1),
-          curCol, nextCol, i, j, tmp;
+      var data = buffer.slice(i, i + d.number)
+      i += d.number
 
-      // initialise previous row
-      for (i=0; i<prevRow.length; ++i) {
-        prevRow[i] = i;
+      // decompile minimally
+      var op = asMinimalOP(data)
+      if (op !== undefined) {
+        chunks.push(op)
+      } else {
+        chunks.push(data)
       }
 
-      // calculate current row distance from previous row
-      for (i=0; i<str1.length; ++i) {
-        nextCol = i + 1;
+    // opcode
+    } else {
+      chunks.push(opcode)
 
-        for (j=0; j<str2.length; ++j) {
-          curCol = nextCol;
+      i += 1
+    }
+  }
 
-          // substution
-          nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
-          // insertion
-          tmp = curCol + 1;
-          if (nextCol > tmp) {
-            nextCol = tmp;
-          }
-          // deletion
-          tmp = prevRow[j + 1] + 1;
-          if (nextCol > tmp) {
-            nextCol = tmp;
-          }
+  return chunks
+}
 
-          // copy current col value into previous (in preparation for next iteration)
-          prevRow[j] = curCol;
-        }
+function toASM (chunks) {
+  if (Buffer.isBuffer(chunks)) {
+    chunks = decompile(chunks)
+  }
 
-        // copy last col value into previous (in preparation for next iteration)
-        prevRow[j] = nextCol;
-      }
+  return chunks.map(function (chunk) {
+    // data?
+    if (Buffer.isBuffer(chunk)) {
+      var op = asMinimalOP(chunk)
+      if (op === undefined) return chunk.toString('hex')
+      chunk = op
+    }
 
-      return nextCol;
-    },
+    // opcode!
+    return REVERSE_OPS[chunk]
+  }).join(' ')
+}
 
-    /**
-     * Asynchronously calculate levenshtein distance of the two strings.
-     *
-     * @param str1 String the first string.
-     * @param str2 String the second string.
-     * @param cb Function callback function with signature: function(Error err, int distance)
-     * @param [options] Object additional options.
-     * @param [options.progress] Function progress callback with signature: function(percentComplete)
-     */
-    getAsync: function(str1, str2, cb, options) {
-      options = _extend({}, {
-        progress: null
-      }, options);
+function fromASM (asm) {
+  typeforce(types.String, asm)
 
-      // base cases
-      if (str1 === str2) return cb(null, 0);
-      if (str1.length === 0) return cb(null, str2.length);
-      if (str2.length === 0) return cb(null, str1.length);
+  return compile(asm.split(' ').map(function (chunkStr) {
+    // opcode?
+    if (OPS[chunkStr] !== undefined) return OPS[chunkStr]
+    typeforce(types.Hex, chunkStr)
 
-      // two rows
-      var prevRow  = new Array(str2.length + 1),
-          curCol, nextCol,
-          i, j, tmp,
-          startTime, currentTime;
+    // data!
+    return Buffer.from(chunkStr, 'hex')
+  }))
+}
 
-      // initialise previous row
-      for (i=0; i<prevRow.length; ++i) {
-        prevRow[i] = i;
-      }
+function toStack (chunks) {
+  chunks = decompile(chunks)
+  typeforce(isPushOnly, chunks)
 
-      nextCol = 1;
-      i = 0;
-      j = -1;
+  return chunks.map(function (op) {
+    if (Buffer.isBuffer(op)) return op
+    if (op === OPS.OP_0) return Buffer.allocUnsafe(0)
 
-      var __calculate = function() {
-        // reset timer
-        startTime = new Date().valueOf();
-        currentTime = startTime;
+    return scriptNumber.encode(op - OP_INT_BASE)
+  })
+}
 
-        // keep going until one second has elapsed
-        while (currentTime - startTime < 1000) {
-          // reached end of current row?
-          if (str2.length <= (++j)) {
-            // copy current into previous (in preparation for next iteration)
-            prevRow[j] = nextCol;
+function isCanonicalPubKey (buffer) {
+  if (!Buffer.isBuffer(buffer)) return false
+  if (buffer.length < 33) return false
 
-            // if already done all chars
-            if (str1.length <= (++i)) {
-              return cb(null, nextCol);
-            }
-            // else if we have more left to do
-            else {
-              nextCol = i + 1;
-              j = 0;
-            }
-          }
+  switch (buffer[0]) {
+    case 0x02:
+    case 0x03:
+      return buffer.length === 33
+    case 0x04:
+      return buffer.length === 65
+  }
 
-          // calculation
-          curCol = nextCol;
+  return false
+}
 
-          // substution
-          nextCol = prevRow[j] + ( (str1.charAt(i) === str2.charAt(j)) ? 0 : 1 );
-          // insertion
-          tmp = curCol + 1;
-          if (nextCol > tmp) {
-            nextCol = tmp;
-          }
-          // deletion
-          tmp = prevRow[j + 1] + 1;
-          if (nextCol > tmp) {
-            nextCol = tmp;
-          }
+function isDefinedHashType (hashType) {
+  var hashTypeMod = hashType & ~0x80
 
-          // copy current into previous (in preparation for next iteration)
-          prevRow[j] = curCol;
+// return hashTypeMod > SIGHASH_ALL && hashTypeMod < SIGHASH_SINGLE
+  return hashTypeMod > 0x00 && hashTypeMod < 0x04
+}
 
-          // get current time
-          currentTime = new Date().valueOf();
-        }
+function isCanonicalSignature (buffer) {
+  if (!Buffer.isBuffer(buffer)) return false
+  if (!isDefinedHashType(buffer[buffer.length - 1])) return false
 
-        // send a progress update?
-        if (null !== options.progress) {
-          try {
-            options.progress.call(null, (i * 100.0/ str1.length));
-          } catch (err) {
-            return cb('Progress callback: ' + err.toString());
-          }
-        }
+  return bip66.check(buffer.slice(0, -1))
+}
 
-        // next iteration
-        _defer(__calculate);
-      };
+module.exports = {
+  compile: compile,
+  decompile: decompile,
+  fromASM: fromASM,
+  toASM: toASM,
+  toStack: toStack,
 
-      __calculate();
+  number: require('./script_number'),
+
+  isCanonicalPubKey: isCanonicalPubKey,
+  isCanonicalSignature: isCanonicalSignature,
+  isPushOnly: isPushOnly,
+  isDefinedHashType: isDefinedHashType
+}
+
+},{"./script_number":55,"./types":80,"bip66":41,"bitcoin-ops":42,"bitcoin-ops/map":43,"pushdata-bitcoin":125,"safe-buffer":128,"typeforce":139}],55:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+
+function decode (buffer, maxLength, minimal) {
+  maxLength = maxLength || 4
+  minimal = minimal === undefined ? true : minimal
+
+  var length = buffer.length
+  if (length === 0) return 0
+  if (length > maxLength) throw new TypeError('Script number overflow')
+  if (minimal) {
+    if ((buffer[length - 1] & 0x7f) === 0) {
+      if (length <= 1 || (buffer[length - 2] & 0x80) === 0) throw new Error('Non-minimally encoded script number')
     }
+  }
 
-  };
+  // 40-bit
+  if (length === 5) {
+    var a = buffer.readUInt32LE(0)
+    var b = buffer.readUInt8(4)
 
-  // amd
-  if (typeof define !== "undefined" && define !== null && define.amd) {
-    define(function() {
-      return Levenshtein;
-    });
+    if (b & 0x80) return -(((b & ~0x80) * 0x100000000) + a)
+    return (b * 0x100000000) + a
   }
-  // commonjs
-  else if (typeof module !== "undefined" && module !== null && typeof exports !== "undefined" && module.exports === exports) {
-    module.exports = Levenshtein;
+
+  var result = 0
+
+  // 32-bit / 24-bit / 16-bit / 8-bit
+  for (var i = 0; i < length; ++i) {
+    result |= buffer[i] << (8 * i)
   }
-  // web worker
-  else if (typeof self !== "undefined" && typeof self.postMessage === 'function' && typeof self.importScripts === 'function') {
-    self.Levenshtein = Levenshtein;
+
+  if (buffer[length - 1] & 0x80) return -(result & ~(0x80 << (8 * (length - 1))))
+  return result
+}
+
+function scriptNumSize (i) {
+  return i > 0x7fffffff ? 5
+  : i > 0x7fffff ? 4
+  : i > 0x7fff ? 3
+  : i > 0x7f ? 2
+  : i > 0x00 ? 1
+  : 0
+}
+
+function encode (number) {
+  var value = Math.abs(number)
+  var size = scriptNumSize(value)
+  var buffer = Buffer.allocUnsafe(size)
+  var negative = number < 0
+
+  for (var i = 0; i < size; ++i) {
+    buffer.writeUInt8(value & 0xff, i)
+    value >>= 8
   }
-  // browser main thread
-  else if (typeof window !== "undefined" && window !== null) {
-    window.Levenshtein = Levenshtein;
+
+  if (buffer[size - 1] & 0x80) {
+    buffer.writeUInt8(negative ? 0x80 : 0x00, size - 1)
+  } else if (negative) {
+    buffer[size - 1] |= 0x80
   }
-}());
 
-</script>
-        <script>(function(r){r.fn.qrcode=function(h){var s;function u(a){this.mode=s;this.data=a}function o(a,c){this.typeNumber=a;this.errorCorrectLevel=c;this.modules=null;this.moduleCount=0;this.dataCache=null;this.dataList=[]}function q(a,c){if(void 0==a.length)throw Error(a.length+"/"+c);for(var d=0;d<a.length&&0==a[d];)d++;this.num=Array(a.length-d+c);for(var b=0;b<a.length-d;b++)this.num[b]=a[b+d]}function p(a,c){this.totalCount=a;this.dataCount=c}function t(){this.buffer=[];this.length=0}u.prototype={getLength:function(){return this.data.length},
-write:function(a){for(var c=0;c<this.data.length;c++)a.put(this.data.charCodeAt(c),8)}};o.prototype={addData:function(a){this.dataList.push(new u(a));this.dataCache=null},isDark:function(a,c){if(0>a||this.moduleCount<=a||0>c||this.moduleCount<=c)throw Error(a+","+c);return this.modules[a][c]},getModuleCount:function(){return this.moduleCount},make:function(){if(1>this.typeNumber){for(var a=1,a=1;40>a;a++){for(var c=p.getRSBlocks(a,this.errorCorrectLevel),d=new t,b=0,e=0;e<c.length;e++)b+=c[e].dataCount;
-for(e=0;e<this.dataList.length;e++)c=this.dataList[e],d.put(c.mode,4),d.put(c.getLength(),j.getLengthInBits(c.mode,a)),c.write(d);if(d.getLengthInBits()<=8*b)break}this.typeNumber=a}this.makeImpl(!1,this.getBestMaskPattern())},makeImpl:function(a,c){this.moduleCount=4*this.typeNumber+17;this.modules=Array(this.moduleCount);for(var d=0;d<this.moduleCount;d++){this.modules[d]=Array(this.moduleCount);for(var b=0;b<this.moduleCount;b++)this.modules[d][b]=null}this.setupPositionProbePattern(0,0);this.setupPositionProbePattern(this.moduleCount-
-7,0);this.setupPositionProbePattern(0,this.moduleCount-7);this.setupPositionAdjustPattern();this.setupTimingPattern();this.setupTypeInfo(a,c);7<=this.typeNumber&&this.setupTypeNumber(a);null==this.dataCache&&(this.dataCache=o.createData(this.typeNumber,this.errorCorrectLevel,this.dataList));this.mapData(this.dataCache,c)},setupPositionProbePattern:function(a,c){for(var d=-1;7>=d;d++)if(!(-1>=a+d||this.moduleCount<=a+d))for(var b=-1;7>=b;b++)-1>=c+b||this.moduleCount<=c+b||(this.modules[a+d][c+b]=
-0<=d&&6>=d&&(0==b||6==b)||0<=b&&6>=b&&(0==d||6==d)||2<=d&&4>=d&&2<=b&&4>=b?!0:!1)},getBestMaskPattern:function(){for(var a=0,c=0,d=0;8>d;d++){this.makeImpl(!0,d);var b=j.getLostPoint(this);if(0==d||a>b)a=b,c=d}return c},createMovieClip:function(a,c,d){a=a.createEmptyMovieClip(c,d);this.make();for(c=0;c<this.modules.length;c++)for(var d=1*c,b=0;b<this.modules[c].length;b++){var e=1*b;this.modules[c][b]&&(a.beginFill(0,100),a.moveTo(e,d),a.lineTo(e+1,d),a.lineTo(e+1,d+1),a.lineTo(e,d+1),a.endFill())}return a},
-setupTimingPattern:function(){for(var a=8;a<this.moduleCount-8;a++)null==this.modules[a][6]&&(this.modules[a][6]=0==a%2);for(a=8;a<this.moduleCount-8;a++)null==this.modules[6][a]&&(this.modules[6][a]=0==a%2)},setupPositionAdjustPattern:function(){for(var a=j.getPatternPosition(this.typeNumber),c=0;c<a.length;c++)for(var d=0;d<a.length;d++){var b=a[c],e=a[d];if(null==this.modules[b][e])for(var f=-2;2>=f;f++)for(var i=-2;2>=i;i++)this.modules[b+f][e+i]=-2==f||2==f||-2==i||2==i||0==f&&0==i?!0:!1}},setupTypeNumber:function(a){for(var c=
-j.getBCHTypeNumber(this.typeNumber),d=0;18>d;d++){var b=!a&&1==(c>>d&1);this.modules[Math.floor(d/3)][d%3+this.moduleCount-8-3]=b}for(d=0;18>d;d++)b=!a&&1==(c>>d&1),this.modules[d%3+this.moduleCount-8-3][Math.floor(d/3)]=b},setupTypeInfo:function(a,c){for(var d=j.getBCHTypeInfo(this.errorCorrectLevel<<3|c),b=0;15>b;b++){var e=!a&&1==(d>>b&1);6>b?this.modules[b][8]=e:8>b?this.modules[b+1][8]=e:this.modules[this.moduleCount-15+b][8]=e}for(b=0;15>b;b++)e=!a&&1==(d>>b&1),8>b?this.modules[8][this.moduleCount-
-b-1]=e:9>b?this.modules[8][15-b-1+1]=e:this.modules[8][15-b-1]=e;this.modules[this.moduleCount-8][8]=!a},mapData:function(a,c){for(var d=-1,b=this.moduleCount-1,e=7,f=0,i=this.moduleCount-1;0<i;i-=2)for(6==i&&i--;;){for(var g=0;2>g;g++)if(null==this.modules[b][i-g]){var n=!1;f<a.length&&(n=1==(a[f]>>>e&1));j.getMask(c,b,i-g)&&(n=!n);this.modules[b][i-g]=n;e--; -1==e&&(f++,e=7)}b+=d;if(0>b||this.moduleCount<=b){b-=d;d=-d;break}}}};o.PAD0=236;o.PAD1=17;o.createData=function(a,c,d){for(var c=p.getRSBlocks(a,
-c),b=new t,e=0;e<d.length;e++){var f=d[e];b.put(f.mode,4);b.put(f.getLength(),j.getLengthInBits(f.mode,a));f.write(b)}for(e=a=0;e<c.length;e++)a+=c[e].dataCount;if(b.getLengthInBits()>8*a)throw Error("code length overflow. ("+b.getLengthInBits()+">"+8*a+")");for(b.getLengthInBits()+4<=8*a&&b.put(0,4);0!=b.getLengthInBits()%8;)b.putBit(!1);for(;!(b.getLengthInBits()>=8*a);){b.put(o.PAD0,8);if(b.getLengthInBits()>=8*a)break;b.put(o.PAD1,8)}return o.createBytes(b,c)};o.createBytes=function(a,c){for(var d=
-0,b=0,e=0,f=Array(c.length),i=Array(c.length),g=0;g<c.length;g++){var n=c[g].dataCount,h=c[g].totalCount-n,b=Math.max(b,n),e=Math.max(e,h);f[g]=Array(n);for(var k=0;k<f[g].length;k++)f[g][k]=255&a.buffer[k+d];d+=n;k=j.getErrorCorrectPolynomial(h);n=(new q(f[g],k.getLength()-1)).mod(k);i[g]=Array(k.getLength()-1);for(k=0;k<i[g].length;k++)h=k+n.getLength()-i[g].length,i[g][k]=0<=h?n.get(h):0}for(k=g=0;k<c.length;k++)g+=c[k].totalCount;d=Array(g);for(k=n=0;k<b;k++)for(g=0;g<c.length;g++)k<f[g].length&&
-(d[n++]=f[g][k]);for(k=0;k<e;k++)for(g=0;g<c.length;g++)k<i[g].length&&(d[n++]=i[g][k]);return d};s=4;for(var j={PATTERN_POSITION_TABLE:[[],[6,18],[6,22],[6,26],[6,30],[6,34],[6,22,38],[6,24,42],[6,26,46],[6,28,50],[6,30,54],[6,32,58],[6,34,62],[6,26,46,66],[6,26,48,70],[6,26,50,74],[6,30,54,78],[6,30,56,82],[6,30,58,86],[6,34,62,90],[6,28,50,72,94],[6,26,50,74,98],[6,30,54,78,102],[6,28,54,80,106],[6,32,58,84,110],[6,30,58,86,114],[6,34,62,90,118],[6,26,50,74,98,122],[6,30,54,78,102,126],[6,26,52,
-78,104,130],[6,30,56,82,108,134],[6,34,60,86,112,138],[6,30,58,86,114,142],[6,34,62,90,118,146],[6,30,54,78,102,126,150],[6,24,50,76,102,128,154],[6,28,54,80,106,132,158],[6,32,58,84,110,136,162],[6,26,54,82,110,138,166],[6,30,58,86,114,142,170]],G15:1335,G18:7973,G15_MASK:21522,getBCHTypeInfo:function(a){for(var c=a<<10;0<=j.getBCHDigit(c)-j.getBCHDigit(j.G15);)c^=j.G15<<j.getBCHDigit(c)-j.getBCHDigit(j.G15);return(a<<10|c)^j.G15_MASK},getBCHTypeNumber:function(a){for(var c=a<<12;0<=j.getBCHDigit(c)-
-j.getBCHDigit(j.G18);)c^=j.G18<<j.getBCHDigit(c)-j.getBCHDigit(j.G18);return a<<12|c},getBCHDigit:function(a){for(var c=0;0!=a;)c++,a>>>=1;return c},getPatternPosition:function(a){return j.PATTERN_POSITION_TABLE[a-1]},getMask:function(a,c,d){switch(a){case 0:return 0==(c+d)%2;case 1:return 0==c%2;case 2:return 0==d%3;case 3:return 0==(c+d)%3;case 4:return 0==(Math.floor(c/2)+Math.floor(d/3))%2;case 5:return 0==c*d%2+c*d%3;case 6:return 0==(c*d%2+c*d%3)%2;case 7:return 0==(c*d%3+(c+d)%2)%2;default:throw Error("bad maskPattern:"+
-a);}},getErrorCorrectPolynomial:function(a){for(var c=new q([1],0),d=0;d<a;d++)c=c.multiply(new q([1,l.gexp(d)],0));return c},getLengthInBits:function(a,c){if(1<=c&&10>c)switch(a){case 1:return 10;case 2:return 9;case s:return 8;case 8:return 8;default:throw Error("mode:"+a);}else if(27>c)switch(a){case 1:return 12;case 2:return 11;case s:return 16;case 8:return 10;default:throw Error("mode:"+a);}else if(41>c)switch(a){case 1:return 14;case 2:return 13;case s:return 16;case 8:return 12;default:throw Error("mode:"+
-a);}else throw Error("type:"+c);},getLostPoint:function(a){for(var c=a.getModuleCount(),d=0,b=0;b<c;b++)for(var e=0;e<c;e++){for(var f=0,i=a.isDark(b,e),g=-1;1>=g;g++)if(!(0>b+g||c<=b+g))for(var h=-1;1>=h;h++)0>e+h||c<=e+h||0==g&&0==h||i==a.isDark(b+g,e+h)&&f++;5<f&&(d+=3+f-5)}for(b=0;b<c-1;b++)for(e=0;e<c-1;e++)if(f=0,a.isDark(b,e)&&f++,a.isDark(b+1,e)&&f++,a.isDark(b,e+1)&&f++,a.isDark(b+1,e+1)&&f++,0==f||4==f)d+=3;for(b=0;b<c;b++)for(e=0;e<c-6;e++)a.isDark(b,e)&&!a.isDark(b,e+1)&&a.isDark(b,e+
-2)&&a.isDark(b,e+3)&&a.isDark(b,e+4)&&!a.isDark(b,e+5)&&a.isDark(b,e+6)&&(d+=40);for(e=0;e<c;e++)for(b=0;b<c-6;b++)a.isDark(b,e)&&!a.isDark(b+1,e)&&a.isDark(b+2,e)&&a.isDark(b+3,e)&&a.isDark(b+4,e)&&!a.isDark(b+5,e)&&a.isDark(b+6,e)&&(d+=40);for(e=f=0;e<c;e++)for(b=0;b<c;b++)a.isDark(b,e)&&f++;a=Math.abs(100*f/c/c-50)/5;return d+10*a}},l={glog:function(a){if(1>a)throw Error("glog("+a+")");return l.LOG_TABLE[a]},gexp:function(a){for(;0>a;)a+=255;for(;256<=a;)a-=255;return l.EXP_TABLE[a]},EXP_TABLE:Array(256),
-LOG_TABLE:Array(256)},m=0;8>m;m++)l.EXP_TABLE[m]=1<<m;for(m=8;256>m;m++)l.EXP_TABLE[m]=l.EXP_TABLE[m-4]^l.EXP_TABLE[m-5]^l.EXP_TABLE[m-6]^l.EXP_TABLE[m-8];for(m=0;255>m;m++)l.LOG_TABLE[l.EXP_TABLE[m]]=m;q.prototype={get:function(a){return this.num[a]},getLength:function(){return this.num.length},multiply:function(a){for(var c=Array(this.getLength()+a.getLength()-1),d=0;d<this.getLength();d++)for(var b=0;b<a.getLength();b++)c[d+b]^=l.gexp(l.glog(this.get(d))+l.glog(a.get(b)));return new q(c,0)},mod:function(a){if(0>
-this.getLength()-a.getLength())return this;for(var c=l.glog(this.get(0))-l.glog(a.get(0)),d=Array(this.getLength()),b=0;b<this.getLength();b++)d[b]=this.get(b);for(b=0;b<a.getLength();b++)d[b]^=l.gexp(l.glog(a.get(b))+c);return(new q(d,0)).mod(a)}};p.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],
-[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,
-116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,
-43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,
-3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,
-55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,
-45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]];p.getRSBlocks=function(a,c){var d=p.getRsBlockTable(a,c);if(void 0==d)throw Error("bad rs block @ typeNumber:"+a+"/errorCorrectLevel:"+c);for(var b=d.length/3,e=[],f=0;f<b;f++)for(var h=d[3*f+0],g=d[3*f+1],j=d[3*f+2],l=0;l<h;l++)e.push(new p(g,j));return e};p.getRsBlockTable=function(a,c){switch(c){case 1:return p.RS_BLOCK_TABLE[4*(a-1)+0];case 0:return p.RS_BLOCK_TABLE[4*(a-1)+1];case 3:return p.RS_BLOCK_TABLE[4*
-(a-1)+2];case 2:return p.RS_BLOCK_TABLE[4*(a-1)+3]}};t.prototype={get:function(a){return 1==(this.buffer[Math.floor(a/8)]>>>7-a%8&1)},put:function(a,c){for(var d=0;d<c;d++)this.putBit(1==(a>>>c-d-1&1))},getLengthInBits:function(){return this.length},putBit:function(a){var c=Math.floor(this.length/8);this.buffer.length<=c&&this.buffer.push(0);a&&(this.buffer[c]|=128>>>this.length%8);this.length++}};"string"===typeof h&&(h={text:h});h=r.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,
-correctLevel:2,background:"#ffffff",foreground:"#000000"},h);return this.each(function(){var a;if("canvas"==h.render){a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();var c=document.createElement("canvas");c.width=h.width;c.height=h.height;for(var d=c.getContext("2d"),b=h.width/a.getModuleCount(),e=h.height/a.getModuleCount(),f=0;f<a.getModuleCount();f++)for(var i=0;i<a.getModuleCount();i++){d.fillStyle=a.isDark(f,i)?h.foreground:h.background;var g=Math.ceil((i+1)*b)-Math.floor(i*b),
-j=Math.ceil((f+1)*b)-Math.floor(f*b);d.fillRect(Math.round(i*b),Math.round(f*e),g,j)}}else{a=new o(h.typeNumber,h.correctLevel);a.addData(h.text);a.make();c=r("<table></table>").css("width",h.width+"px").css("height",h.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",h.background);d=h.width/a.getModuleCount();b=h.height/a.getModuleCount();for(e=0;e<a.getModuleCount();e++){f=r("<tr></tr>").css("height",b+"px").appendTo(c);for(i=0;i<a.getModuleCount();i++)r("<td></td>").css("width",
-d+"px").css("background-color",a.isDark(e,i)?h.foreground:h.background).appendTo(f)}}a=c;$(a).appendTo(this)})}})($);
-</script>
-        <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.bitcoin = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-// (public) Constructor
-function BigInteger(a, b, c) {
-  if (!(this instanceof BigInteger))
-    return new BigInteger(a, b, c)
+  return buffer
+}
 
-  if (a != null) {
-    if ("number" == typeof a) this.fromNumber(a, b, c)
-    else if (b == null && "string" != typeof a) this.fromString(a, 256)
-    else this.fromString(a, b)
-  }
+module.exports = {
+  decode: decode,
+  encode: encode
 }
 
-var proto = BigInteger.prototype
+},{"safe-buffer":128}],56:[function(require,module,exports){
+var decompile = require('../script').decompile
+var multisig = require('./multisig')
+var nullData = require('./nulldata')
+var pubKey = require('./pubkey')
+var pubKeyHash = require('./pubkeyhash')
+var scriptHash = require('./scripthash')
+var witnessPubKeyHash = require('./witnesspubkeyhash')
+var witnessScriptHash = require('./witnessscripthash')
+var witnessCommitment = require('./witnesscommitment')
+
+var types = {
+  MULTISIG: 'multisig',
+  NONSTANDARD: 'nonstandard',
+  NULLDATA: 'nulldata',
+  P2PK: 'pubkey',
+  P2PKH: 'pubkeyhash',
+  P2SH: 'scripthash',
+  P2WPKH: 'witnesspubkeyhash',
+  P2WSH: 'witnessscripthash',
+  WITNESS_COMMITMENT: 'witnesscommitment'
+}
 
-// duck-typed isBigInteger
-proto.__bigi = require('../package.json').version
-BigInteger.isBigInteger = function (obj, check_ver) {
-  return obj && obj.__bigi && (!check_ver || obj.__bigi === proto.__bigi)
+function classifyOutput (script) {
+  if (witnessPubKeyHash.output.check(script)) return types.P2WPKH
+  if (witnessScriptHash.output.check(script)) return types.P2WSH
+  if (pubKeyHash.output.check(script)) return types.P2PKH
+  if (scriptHash.output.check(script)) return types.P2SH
+
+  // XXX: optimization, below functions .decompile before use
+  var chunks = decompile(script)
+  if (multisig.output.check(chunks)) return types.MULTISIG
+  if (pubKey.output.check(chunks)) return types.P2PK
+  if (witnessCommitment.output.check(chunks)) return types.WITNESS_COMMITMENT
+  if (nullData.output.check(chunks)) return types.NULLDATA
+
+  return types.NONSTANDARD
 }
 
-// Bits per digit
-var dbits
+function classifyInput (script, allowIncomplete) {
+  // XXX: optimization, below functions .decompile before use
+  var chunks = decompile(script)
 
-// am: Compute w_j += (x*this_i), propagate carries,
-// c is initial carry, returns final carry.
-// c < 3*dvalue, x < 2*dvalue, this_i < dvalue
-// We need to select the fastest one that works in this environment.
+  if (pubKeyHash.input.check(chunks)) return types.P2PKH
+  if (scriptHash.input.check(chunks, allowIncomplete)) return types.P2SH
+  if (multisig.input.check(chunks, allowIncomplete)) return types.MULTISIG
+  if (pubKey.input.check(chunks)) return types.P2PK
 
-// am1: use a single mult and divide to get the high bits,
-// max digit bits should be 26 because
-// max internal value = 2*dvalue^2-2*dvalue (< 2^53)
-function am1(i, x, w, j, c, n) {
-  while (--n >= 0) {
-    var v = x * this[i++] + w[j] + c
-    c = Math.floor(v / 0x4000000)
-    w[j++] = v & 0x3ffffff
-  }
-  return c
+  return types.NONSTANDARD
 }
-// am2 avoids a big mult-and-extract completely.
-// Max digit bits should be <= 30 because we do bitwise ops
-// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
-function am2(i, x, w, j, c, n) {
-  var xl = x & 0x7fff,
-    xh = x >> 15
-  while (--n >= 0) {
-    var l = this[i] & 0x7fff
-    var h = this[i++] >> 15
-    var m = xh * l + h * xl
-    l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff)
-    c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30)
-    w[j++] = l & 0x3fffffff
-  }
-  return c
+
+function classifyWitness (script, allowIncomplete) {
+  // XXX: optimization, below functions .decompile before use
+  var chunks = decompile(script)
+
+  if (witnessPubKeyHash.input.check(chunks)) return types.P2WPKH
+  if (witnessScriptHash.input.check(chunks, allowIncomplete)) return types.P2WSH
+
+  return types.NONSTANDARD
 }
-// Alternately, set max digit bits to 28 since some
-// browsers slow down when dealing with 32-bit numbers.
-function am3(i, x, w, j, c, n) {
-  var xl = x & 0x3fff,
-    xh = x >> 14
-  while (--n >= 0) {
-    var l = this[i] & 0x3fff
-    var h = this[i++] >> 14
-    var m = xh * l + h * xl
-    l = xl * l + ((m & 0x3fff) << 14) + w[j] + c
-    c = (l >> 28) + (m >> 14) + xh * h
-    w[j++] = l & 0xfffffff
+
+module.exports = {
+  classifyInput: classifyInput,
+  classifyOutput: classifyOutput,
+  classifyWitness: classifyWitness,
+  multisig: multisig,
+  nullData: nullData,
+  pubKey: pubKey,
+  pubKeyHash: pubKeyHash,
+  scriptHash: scriptHash,
+  witnessPubKeyHash: witnessPubKeyHash,
+  witnessScriptHash: witnessScriptHash,
+  witnessCommitment: witnessCommitment,
+  types: types
+}
+
+},{"../script":54,"./multisig":57,"./nulldata":60,"./pubkey":61,"./pubkeyhash":64,"./scripthash":67,"./witnesscommitment":70,"./witnesspubkeyhash":72,"./witnessscripthash":75}],57:[function(require,module,exports){
+module.exports = {
+  input: require('./input'),
+  output: require('./output')
+}
+
+},{"./input":58,"./output":59}],58:[function(require,module,exports){
+// OP_0 [signatures ...]
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var p2mso = require('./output')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function partialSignature (value) {
+  return value === OPS.OP_0 || bscript.isCanonicalSignature(value)
+}
+
+function check (script, allowIncomplete) {
+  var chunks = bscript.decompile(script)
+  if (chunks.length < 2) return false
+  if (chunks[0] !== OPS.OP_0) return false
+
+  if (allowIncomplete) {
+    return chunks.slice(1).every(partialSignature)
   }
-  return c
+
+  return chunks.slice(1).every(bscript.isCanonicalSignature)
 }
+check.toJSON = function () { return 'multisig input' }
 
-// wtf?
-BigInteger.prototype.am = am1
-dbits = 26
+var EMPTY_BUFFER = Buffer.allocUnsafe(0)
+
+function encodeStack (signatures, scriptPubKey) {
+  typeforce([partialSignature], signatures)
+
+  if (scriptPubKey) {
+    var scriptData = p2mso.decode(scriptPubKey)
 
-BigInteger.prototype.DB = dbits
-BigInteger.prototype.DM = ((1 << dbits) - 1)
-var DV = BigInteger.prototype.DV = (1 << dbits)
+    if (signatures.length < scriptData.m) {
+      throw new TypeError('Not enough signatures provided')
+    }
 
-var BI_FP = 52
-BigInteger.prototype.FV = Math.pow(2, BI_FP)
-BigInteger.prototype.F1 = BI_FP - dbits
-BigInteger.prototype.F2 = 2 * dbits - BI_FP
+    if (signatures.length > scriptData.pubKeys.length) {
+      throw new TypeError('Too many signatures provided')
+    }
+  }
 
-// Digit conversions
-var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz"
-var BI_RC = new Array()
-var rr, vv
-rr = "0".charCodeAt(0)
-for (vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv
-rr = "a".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
-rr = "A".charCodeAt(0)
-for (vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv
+  return [].concat(EMPTY_BUFFER, signatures.map(function (sig) {
+    if (sig === OPS.OP_0) {
+      return EMPTY_BUFFER
+    }
+    return sig
+  }))
+}
 
-function int2char(n) {
-  return BI_RM.charAt(n)
+function encode (signatures, scriptPubKey) {
+  return bscript.compile(encodeStack(signatures, scriptPubKey))
 }
 
-function intAt(s, i) {
-  var c = BI_RC[s.charCodeAt(i)]
-  return (c == null) ? -1 : c
+function decodeStack (stack, allowIncomplete) {
+  typeforce(check, stack, allowIncomplete)
+  return stack.slice(1)
 }
 
-// (protected) copy this to r
-function bnpCopyTo(r) {
-  for (var i = this.t - 1; i >= 0; --i) r[i] = this[i]
-  r.t = this.t
-  r.s = this.s
+function decode (buffer, allowIncomplete) {
+  var stack = bscript.decompile(buffer)
+  return decodeStack(stack, allowIncomplete)
 }
 
-// (protected) set from integer value x, -DV <= x < DV
-function bnpFromInt(x) {
-  this.t = 1
-  this.s = (x < 0) ? -1 : 0
-  if (x > 0) this[0] = x
-  else if (x < -1) this[0] = x + DV
-  else this.t = 0
+module.exports = {
+  check: check,
+  decode: decode,
+  decodeStack: decodeStack,
+  encode: encode,
+  encodeStack: encodeStack
 }
 
-// return bigint initialized to value
-function nbv(i) {
-  var r = new BigInteger()
-  r.fromInt(i)
-  return r
+},{"../../script":54,"./output":59,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],59:[function(require,module,exports){
+// m [pubKeys ...] n OP_CHECKMULTISIG
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+var OP_INT_BASE = OPS.OP_RESERVED // OP_1 - 1
+
+function check (script, allowIncomplete) {
+  var chunks = bscript.decompile(script)
+
+  if (chunks.length < 4) return false
+  if (chunks[chunks.length - 1] !== OPS.OP_CHECKMULTISIG) return false
+  if (!types.Number(chunks[0])) return false
+  if (!types.Number(chunks[chunks.length - 2])) return false
+  var m = chunks[0] - OP_INT_BASE
+  var n = chunks[chunks.length - 2] - OP_INT_BASE
+
+  if (m <= 0) return false
+  if (n > 16) return false
+  if (m > n) return false
+  if (n !== chunks.length - 3) return false
+  if (allowIncomplete) return true
+
+  var keys = chunks.slice(1, -2)
+  return keys.every(bscript.isCanonicalPubKey)
+}
+check.toJSON = function () { return 'multi-sig output' }
+
+function encode (m, pubKeys) {
+  typeforce({
+    m: types.Number,
+    pubKeys: [bscript.isCanonicalPubKey]
+  }, {
+    m: m,
+    pubKeys: pubKeys
+  })
+
+  var n = pubKeys.length
+  if (n < m) throw new TypeError('Not enough pubKeys provided')
+
+  return bscript.compile([].concat(
+    OP_INT_BASE + m,
+    pubKeys,
+    OP_INT_BASE + n,
+    OPS.OP_CHECKMULTISIG
+  ))
 }
 
-// (protected) set from string and radix
-function bnpFromString(s, b) {
-  var self = this
+function decode (buffer, allowIncomplete) {
+  var chunks = bscript.decompile(buffer)
+  typeforce(check, chunks, allowIncomplete)
 
-  var k
-  if (b == 16) k = 4
-  else if (b == 8) k = 3
-  else if (b == 256) k = 8; // byte array
-  else if (b == 2) k = 1
-  else if (b == 32) k = 5
-  else if (b == 4) k = 2
-  else {
-    self.fromRadix(s, b)
-    return
-  }
-  self.t = 0
-  self.s = 0
-  var i = s.length,
-    mi = false,
-    sh = 0
-  while (--i >= 0) {
-    var x = (k == 8) ? s[i] & 0xff : intAt(s, i)
-    if (x < 0) {
-      if (s.charAt(i) == "-") mi = true
-      continue
-    }
-    mi = false
-    if (sh == 0)
-      self[self.t++] = x
-    else if (sh + k > self.DB) {
-      self[self.t - 1] |= (x & ((1 << (self.DB - sh)) - 1)) << sh
-      self[self.t++] = (x >> (self.DB - sh))
-    } else
-      self[self.t - 1] |= x << sh
-    sh += k
-    if (sh >= self.DB) sh -= self.DB
-  }
-  if (k == 8 && (s[0] & 0x80) != 0) {
-    self.s = -1
-    if (sh > 0) self[self.t - 1] |= ((1 << (self.DB - sh)) - 1) << sh
+  return {
+    m: chunks[0] - OP_INT_BASE,
+    pubKeys: chunks.slice(1, -2)
   }
-  self.clamp()
-  if (mi) BigInteger.ZERO.subTo(self, self)
 }
 
-// (protected) clamp off excess high words
-function bnpClamp() {
-  var c = this.s & this.DM
-  while (this.t > 0 && this[this.t - 1] == c)--this.t
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// (public) return string representation in given radix
-function bnToString(b) {
-  var self = this
-  if (self.s < 0) return "-" + self.negate()
-    .toString(b)
-  var k
-  if (b == 16) k = 4
-  else if (b == 8) k = 3
-  else if (b == 2) k = 1
-  else if (b == 32) k = 5
-  else if (b == 4) k = 2
-  else return self.toRadix(b)
-  var km = (1 << k) - 1,
-    d, m = false,
-    r = "",
-    i = self.t
-  var p = self.DB - (i * self.DB) % k
-  if (i-- > 0) {
-    if (p < self.DB && (d = self[i] >> p) > 0) {
-      m = true
-      r = int2char(d)
-    }
-    while (i >= 0) {
-      if (p < k) {
-        d = (self[i] & ((1 << p) - 1)) << (k - p)
-        d |= self[--i] >> (p += self.DB - k)
-      } else {
-        d = (self[i] >> (p -= k)) & km
-        if (p <= 0) {
-          p += self.DB
-          --i
-        }
-      }
-      if (d > 0) m = true
-      if (m) r += int2char(d)
-    }
-  }
-  return m ? r : "0"
-}
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],60:[function(require,module,exports){
+// OP_RETURN {data}
 
-// (public) -this
-function bnNegate() {
-  var r = new BigInteger()
-  BigInteger.ZERO.subTo(this, r)
-  return r
+var bscript = require('../script')
+var types = require('../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+  var buffer = bscript.compile(script)
+
+  return buffer.length > 1 &&
+    buffer[0] === OPS.OP_RETURN
 }
+check.toJSON = function () { return 'null data output' }
 
-// (public) |this|
-function bnAbs() {
-  return (this.s < 0) ? this.negate() : this
+function encode (data) {
+  typeforce(types.Buffer, data)
+
+  return bscript.compile([OPS.OP_RETURN, data])
 }
 
-// (public) return + if this > a, - if this < a, 0 if equal
-function bnCompareTo(a) {
-  var r = this.s - a.s
-  if (r != 0) return r
-  var i = this.t
-  r = i - a.t
-  if (r != 0) return (this.s < 0) ? -r : r
-  while (--i >= 0)
-    if ((r = this[i] - a[i]) != 0) return r
-  return 0
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return buffer.slice(2)
 }
 
-// returns bit length of the integer x
-function nbits(x) {
-  var r = 1,
-    t
-  if ((t = x >>> 16) != 0) {
-    x = t
-    r += 16
-  }
-  if ((t = x >> 8) != 0) {
-    x = t
-    r += 8
-  }
-  if ((t = x >> 4) != 0) {
-    x = t
-    r += 4
-  }
-  if ((t = x >> 2) != 0) {
-    x = t
-    r += 2
-  }
-  if ((t = x >> 1) != 0) {
-    x = t
-    r += 1
+module.exports = {
+  output: {
+    check: check,
+    decode: decode,
+    encode: encode
   }
-  return r
 }
 
-// (public) return the number of bits in "this"
-function bnBitLength() {
-  if (this.t <= 0) return 0
-  return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ (this.s & this.DM))
-}
+},{"../script":54,"../types":80,"bitcoin-ops":42,"typeforce":139}],61:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./input":62,"./output":63,"dup":57}],62:[function(require,module,exports){
+// {signature}
 
-// (public) return the number of bytes in "this"
-function bnByteLength() {
-  return this.bitLength() >> 3
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+function check (script) {
+  var chunks = bscript.decompile(script)
+
+  return chunks.length === 1 &&
+    bscript.isCanonicalSignature(chunks[0])
 }
+check.toJSON = function () { return 'pubKey input' }
 
-// (protected) r = this << n*DB
-function bnpDLShiftTo(n, r) {
-  var i
-  for (i = this.t - 1; i >= 0; --i) r[i + n] = this[i]
-  for (i = n - 1; i >= 0; --i) r[i] = 0
-  r.t = this.t + n
-  r.s = this.s
+function encodeStack (signature) {
+  typeforce(bscript.isCanonicalSignature, signature)
+  return [signature]
 }
 
-// (protected) r = this >> n*DB
-function bnpDRShiftTo(n, r) {
-  for (var i = n; i < this.t; ++i) r[i - n] = this[i]
-  r.t = Math.max(this.t - n, 0)
-  r.s = this.s
+function encode (signature) {
+  return bscript.compile(encodeStack(signature))
 }
 
-// (protected) r = this << n
-function bnpLShiftTo(n, r) {
-  var self = this
-  var bs = n % self.DB
-  var cbs = self.DB - bs
-  var bm = (1 << cbs) - 1
-  var ds = Math.floor(n / self.DB),
-    c = (self.s << bs) & self.DM,
-    i
-  for (i = self.t - 1; i >= 0; --i) {
-    r[i + ds + 1] = (self[i] >> cbs) | c
-    c = (self[i] & bm) << bs
-  }
-  for (i = ds - 1; i >= 0; --i) r[i] = 0
-  r[ds] = c
-  r.t = self.t + ds + 1
-  r.s = self.s
-  r.clamp()
+function decodeStack (stack) {
+  typeforce(check, stack)
+  return stack[0]
 }
 
-// (protected) r = this >> n
-function bnpRShiftTo(n, r) {
-  var self = this
-  r.s = self.s
-  var ds = Math.floor(n / self.DB)
-  if (ds >= self.t) {
-    r.t = 0
-    return
-  }
-  var bs = n % self.DB
-  var cbs = self.DB - bs
-  var bm = (1 << bs) - 1
-  r[0] = self[ds] >> bs
-  for (var i = ds + 1; i < self.t; ++i) {
-    r[i - ds - 1] |= (self[i] & bm) << cbs
-    r[i - ds] = self[i] >> bs
-  }
-  if (bs > 0) r[self.t - ds - 1] |= (self.s & bm) << cbs
-  r.t = self.t - ds
-  r.clamp()
+function decode (buffer) {
+  var stack = bscript.decompile(buffer)
+  return decodeStack(stack)
 }
 
-// (protected) r = this - a
-function bnpSubTo(a, r) {
-  var self = this
-  var i = 0,
-    c = 0,
-    m = Math.min(a.t, self.t)
-  while (i < m) {
-    c += self[i] - a[i]
-    r[i++] = c & self.DM
-    c >>= self.DB
-  }
-  if (a.t < self.t) {
-    c -= a.s
-    while (i < self.t) {
-      c += self[i]
-      r[i++] = c & self.DM
-      c >>= self.DB
-    }
-    c += self.s
-  } else {
-    c += self.s
-    while (i < a.t) {
-      c -= a[i]
-      r[i++] = c & self.DM
-      c >>= self.DB
-    }
-    c -= a.s
-  }
-  r.s = (c < 0) ? -1 : 0
-  if (c < -1) r[i++] = self.DV + c
-  else if (c > 0) r[i++] = c
-  r.t = i
-  r.clamp()
+module.exports = {
+  check: check,
+  decode: decode,
+  decodeStack: decodeStack,
+  encode: encode,
+  encodeStack: encodeStack
 }
 
-// (protected) r = this * a, r != this,a (HAC 14.12)
-// "this" should be the larger one if appropriate.
-function bnpMultiplyTo(a, r) {
-  var x = this.abs(),
-    y = a.abs()
-  var i = x.t
-  r.t = i + y.t
-  while (--i >= 0) r[i] = 0
-  for (i = 0; i < y.t; ++i) r[i + x.t] = x.am(0, y[i], r, i, 0, x.t)
-  r.s = 0
-  r.clamp()
-  if (this.s != a.s) BigInteger.ZERO.subTo(r, r)
+},{"../../script":54,"typeforce":139}],63:[function(require,module,exports){
+// {pubKey} OP_CHECKSIG
+
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+  var chunks = bscript.decompile(script)
+
+  return chunks.length === 2 &&
+    bscript.isCanonicalPubKey(chunks[0]) &&
+    chunks[1] === OPS.OP_CHECKSIG
 }
+check.toJSON = function () { return 'pubKey output' }
 
-// (protected) r = this^2, r != this (HAC 14.16)
-function bnpSquareTo(r) {
-  var x = this.abs()
-  var i = r.t = 2 * x.t
-  while (--i >= 0) r[i] = 0
-  for (i = 0; i < x.t - 1; ++i) {
-    var c = x.am(i, x[i], r, 2 * i, 0, 1)
-    if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {
-      r[i + x.t] -= x.DV
-      r[i + x.t + 1] = 1
-    }
-  }
-  if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1)
-  r.s = 0
-  r.clamp()
+function encode (pubKey) {
+  typeforce(bscript.isCanonicalPubKey, pubKey)
+
+  return bscript.compile([pubKey, OPS.OP_CHECKSIG])
 }
 
-// (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
-// r != q, this != m.  q or r may be null.
-function bnpDivRemTo(m, q, r) {
-  var self = this
-  var pm = m.abs()
-  if (pm.t <= 0) return
-  var pt = self.abs()
-  if (pt.t < pm.t) {
-    if (q != null) q.fromInt(0)
-    if (r != null) self.copyTo(r)
-    return
-  }
-  if (r == null) r = new BigInteger()
-  var y = new BigInteger(),
-    ts = self.s,
-    ms = m.s
-  var nsh = self.DB - nbits(pm[pm.t - 1]); // normalize modulus
-  if (nsh > 0) {
-    pm.lShiftTo(nsh, y)
-    pt.lShiftTo(nsh, r)
-  } else {
-    pm.copyTo(y)
-    pt.copyTo(r)
-  }
-  var ys = y.t
-  var y0 = y[ys - 1]
-  if (y0 == 0) return
-  var yt = y0 * (1 << self.F1) + ((ys > 1) ? y[ys - 2] >> self.F2 : 0)
-  var d1 = self.FV / yt,
-    d2 = (1 << self.F1) / yt,
-    e = 1 << self.F2
-  var i = r.t,
-    j = i - ys,
-    t = (q == null) ? new BigInteger() : q
-  y.dlShiftTo(j, t)
-  if (r.compareTo(t) >= 0) {
-    r[r.t++] = 1
-    r.subTo(t, r)
-  }
-  BigInteger.ONE.dlShiftTo(ys, t)
-  t.subTo(y, y); // "negative" y so we can replace sub with am later
-  while (y.t < ys) y[y.t++] = 0
-  while (--j >= 0) {
-    // Estimate quotient digit
-    var qd = (r[--i] == y0) ? self.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2)
-    if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) { // Try it out
-      y.dlShiftTo(j, t)
-      r.subTo(t, r)
-      while (r[i] < --qd) r.subTo(t, r)
-    }
-  }
-  if (q != null) {
-    r.drShiftTo(ys, q)
-    if (ts != ms) BigInteger.ZERO.subTo(q, q)
-  }
-  r.t = ys
-  r.clamp()
-  if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder
-  if (ts < 0) BigInteger.ZERO.subTo(r, r)
+function decode (buffer) {
+  var chunks = bscript.decompile(buffer)
+  typeforce(check, chunks)
+
+  return chunks[0]
 }
 
-// (public) this mod a
-function bnMod(a) {
-  var r = new BigInteger()
-  this.abs()
-    .divRemTo(a, null, r)
-  if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r)
-  return r
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// Modular reduction using "classic" algorithm
-function Classic(m) {
-  this.m = m
+},{"../../script":54,"bitcoin-ops":42,"typeforce":139}],64:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./input":65,"./output":66,"dup":57}],65:[function(require,module,exports){
+// {signature} {pubKey}
+
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+function check (script) {
+  var chunks = bscript.decompile(script)
+
+  return chunks.length === 2 &&
+    bscript.isCanonicalSignature(chunks[0]) &&
+    bscript.isCanonicalPubKey(chunks[1])
 }
+check.toJSON = function () { return 'pubKeyHash input' }
 
-function cConvert(x) {
-  if (x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m)
-  else return x
+function encodeStack (signature, pubKey) {
+  typeforce({
+    signature: bscript.isCanonicalSignature,
+    pubKey: bscript.isCanonicalPubKey
+  }, {
+    signature: signature,
+    pubKey: pubKey
+  })
+
+  return [signature, pubKey]
 }
 
-function cRevert(x) {
-  return x
+function encode (signature, pubKey) {
+  return bscript.compile(encodeStack(signature, pubKey))
 }
 
-function cReduce(x) {
-  x.divRemTo(this.m, null, x)
+function decodeStack (stack) {
+  typeforce(check, stack)
+
+  return {
+    signature: stack[0],
+    pubKey: stack[1]
+  }
 }
 
-function cMulTo(x, y, r) {
-  x.multiplyTo(y, r)
-  this.reduce(r)
+function decode (buffer) {
+  var stack = bscript.decompile(buffer)
+  return decodeStack(stack)
 }
 
-function cSqrTo(x, r) {
-  x.squareTo(r)
-  this.reduce(r)
+module.exports = {
+  check: check,
+  decode: decode,
+  decodeStack: decodeStack,
+  encode: encode,
+  encodeStack: encodeStack
 }
 
-Classic.prototype.convert = cConvert
-Classic.prototype.revert = cRevert
-Classic.prototype.reduce = cReduce
-Classic.prototype.mulTo = cMulTo
-Classic.prototype.sqrTo = cSqrTo
+},{"../../script":54,"typeforce":139}],66:[function(require,module,exports){
+// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
 
-// (protected) return "-1/this % 2^DB"; useful for Mont. reduction
-// justification:
-//         xy == 1 (mod m)
-//         xy =  1+km
-//   xy(2-xy) = (1+km)(1-km)
-// x[y(2-xy)] = 1-k^2m^2
-// x[y(2-xy)] == 1 (mod m^2)
-// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
-// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
-// JS multiply "overflows" differently from C/C++, so care is needed here.
-function bnpInvDigit() {
-  if (this.t < 1) return 0
-  var x = this[0]
-  if ((x & 1) == 0) return 0
-  var y = x & 3; // y == 1/x mod 2^2
-  y = (y * (2 - (x & 0xf) * y)) & 0xf; // y == 1/x mod 2^4
-  y = (y * (2 - (x & 0xff) * y)) & 0xff; // y == 1/x mod 2^8
-  y = (y * (2 - (((x & 0xffff) * y) & 0xffff))) & 0xffff; // y == 1/x mod 2^16
-  // last step - calculate inverse mod DV directly
-  // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
-  y = (y * (2 - x * y % this.DV)) % this.DV; // y == 1/x mod 2^dbits
-  // we really want the negative inverse, and -DV < y < DV
-  return (y > 0) ? this.DV - y : -y
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+  var buffer = bscript.compile(script)
+
+  return buffer.length === 25 &&
+    buffer[0] === OPS.OP_DUP &&
+    buffer[1] === OPS.OP_HASH160 &&
+    buffer[2] === 0x14 &&
+    buffer[23] === OPS.OP_EQUALVERIFY &&
+    buffer[24] === OPS.OP_CHECKSIG
 }
+check.toJSON = function () { return 'pubKeyHash output' }
 
-// Montgomery reduction
-function Montgomery(m) {
-  this.m = m
-  this.mp = m.invDigit()
-  this.mpl = this.mp & 0x7fff
-  this.mph = this.mp >> 15
-  this.um = (1 << (m.DB - 15)) - 1
-  this.mt2 = 2 * m.t
+function encode (pubKeyHash) {
+  typeforce(types.Hash160bit, pubKeyHash)
+
+  return bscript.compile([
+    OPS.OP_DUP,
+    OPS.OP_HASH160,
+    pubKeyHash,
+    OPS.OP_EQUALVERIFY,
+    OPS.OP_CHECKSIG
+  ])
 }
 
-// xR mod m
-function montConvert(x) {
-  var r = new BigInteger()
-  x.abs()
-    .dlShiftTo(this.m.t, r)
-  r.divRemTo(this.m, null, r)
-  if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r)
-  return r
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return buffer.slice(3, 23)
 }
 
-// x/R mod m
-function montRevert(x) {
-  var r = new BigInteger()
-  x.copyTo(r)
-  this.reduce(r)
-  return r
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// x = x/R mod m (HAC 14.32)
-function montReduce(x) {
-  while (x.t <= this.mt2) // pad x so am has enough room later
-    x[x.t++] = 0
-  for (var i = 0; i < this.m.t; ++i) {
-    // faster way of calculating u0 = x[i]*mp mod DV
-    var j = x[i] & 0x7fff
-    var u0 = (j * this.mpl + (((j * this.mph + (x[i] >> 15) * this.mpl) & this.um) << 15)) & x.DM
-    // use am to combine the multiply-shift-add into one call
-    j = i + this.m.t
-    x[j] += this.m.am(0, u0, x, i, 0, this.m.t)
-    // propagate carry
-    while (x[j] >= x.DV) {
-      x[j] -= x.DV
-      x[++j]++
-    }
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],67:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./input":68,"./output":69,"dup":57}],68:[function(require,module,exports){
+// <scriptSig> {serialized scriptPubKey script}
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+var p2ms = require('../multisig/')
+var p2pk = require('../pubkey/')
+var p2pkh = require('../pubkeyhash/')
+var p2wpkho = require('../witnesspubkeyhash/output')
+var p2wsho = require('../witnessscripthash/output')
+
+function check (script, allowIncomplete) {
+  var chunks = bscript.decompile(script)
+  if (chunks.length < 1) return false
+
+  var lastChunk = chunks[chunks.length - 1]
+  if (!Buffer.isBuffer(lastChunk)) return false
+
+  var scriptSigChunks = bscript.decompile(bscript.compile(chunks.slice(0, -1)))
+  var redeemScriptChunks = bscript.decompile(lastChunk)
+
+  // is redeemScript a valid script?
+  if (redeemScriptChunks.length === 0) return false
+
+  // is redeemScriptSig push only?
+  if (!bscript.isPushOnly(scriptSigChunks)) return false
+
+  // is witness?
+  if (chunks.length === 1) {
+    return p2wsho.check(redeemScriptChunks) ||
+      p2wpkho.check(redeemScriptChunks)
   }
-  x.clamp()
-  x.drShiftTo(this.m.t, x)
-  if (x.compareTo(this.m) >= 0) x.subTo(this.m, x)
-}
 
-// r = "x^2/R mod m"; x != r
-function montSqrTo(x, r) {
-  x.squareTo(r)
-  this.reduce(r)
+  // match types
+  if (p2pkh.input.check(scriptSigChunks) &&
+    p2pkh.output.check(redeemScriptChunks)) return true
+
+  if (p2ms.input.check(scriptSigChunks, allowIncomplete) &&
+    p2ms.output.check(redeemScriptChunks)) return true
+
+  if (p2pk.input.check(scriptSigChunks) &&
+    p2pk.output.check(redeemScriptChunks)) return true
+
+  return false
 }
+check.toJSON = function () { return 'scriptHash input' }
 
-// r = "xy/R mod m"; x,y != r
-function montMulTo(x, y, r) {
-  x.multiplyTo(y, r)
-  this.reduce(r)
+function encodeStack (redeemScriptStack, redeemScript) {
+  var serializedScriptPubKey = bscript.compile(redeemScript)
+
+  return [].concat(redeemScriptStack, serializedScriptPubKey)
 }
 
-Montgomery.prototype.convert = montConvert
-Montgomery.prototype.revert = montRevert
-Montgomery.prototype.reduce = montReduce
-Montgomery.prototype.mulTo = montMulTo
-Montgomery.prototype.sqrTo = montSqrTo
+function encode (redeemScriptSig, redeemScript) {
+  var redeemScriptStack = bscript.decompile(redeemScriptSig)
 
-// (protected) true iff this is even
-function bnpIsEven() {
-  return ((this.t > 0) ? (this[0] & 1) : this.s) == 0
+  return bscript.compile(encodeStack(redeemScriptStack, redeemScript))
 }
 
-// (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
-function bnpExp(e, z) {
-  if (e > 0xffffffff || e < 1) return BigInteger.ONE
-  var r = new BigInteger(),
-    r2 = new BigInteger(),
-    g = z.convert(this),
-    i = nbits(e) - 1
-  g.copyTo(r)
-  while (--i >= 0) {
-    z.sqrTo(r, r2)
-    if ((e & (1 << i)) > 0) z.mulTo(r2, g, r)
-    else {
-      var t = r
-      r = r2
-      r2 = t
-    }
+function decodeStack (stack) {
+  typeforce(check, stack)
+
+  return {
+    redeemScriptStack: stack.slice(0, -1),
+    redeemScript: stack[stack.length - 1]
   }
-  return z.revert(r)
 }
 
-// (public) this^e % m, 0 <= e < 2^32
-function bnModPowInt(e, m) {
-  var z
-  if (e < 256 || m.isEven()) z = new Classic(m)
-  else z = new Montgomery(m)
-  return this.exp(e, z)
+function decode (buffer) {
+  var stack = bscript.decompile(buffer)
+  var result = decodeStack(stack)
+  result.redeemScriptSig = bscript.compile(result.redeemScriptStack)
+  delete result.redeemScriptStack
+  return result
 }
 
-// protected
-proto.copyTo = bnpCopyTo
-proto.fromInt = bnpFromInt
-proto.fromString = bnpFromString
-proto.clamp = bnpClamp
-proto.dlShiftTo = bnpDLShiftTo
-proto.drShiftTo = bnpDRShiftTo
-proto.lShiftTo = bnpLShiftTo
-proto.rShiftTo = bnpRShiftTo
-proto.subTo = bnpSubTo
-proto.multiplyTo = bnpMultiplyTo
-proto.squareTo = bnpSquareTo
-proto.divRemTo = bnpDivRemTo
-proto.invDigit = bnpInvDigit
-proto.isEven = bnpIsEven
-proto.exp = bnpExp
+module.exports = {
+  check: check,
+  decode: decode,
+  decodeStack: decodeStack,
+  encode: encode,
+  encodeStack: encodeStack
+}
 
-// public
-proto.toString = bnToString
-proto.negate = bnNegate
-proto.abs = bnAbs
-proto.compareTo = bnCompareTo
-proto.bitLength = bnBitLength
-proto.byteLength = bnByteLength
-proto.mod = bnMod
-proto.modPowInt = bnModPowInt
+},{"../../script":54,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"../witnesspubkeyhash/output":74,"../witnessscripthash/output":77,"safe-buffer":128,"typeforce":139}],69:[function(require,module,exports){
+// OP_HASH160 {scriptHash} OP_EQUAL
 
-// (public)
-function bnClone() {
-  var r = new BigInteger()
-  this.copyTo(r)
-  return r
-}
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
 
-// (public) return value as integer
-function bnIntValue() {
-  if (this.s < 0) {
-    if (this.t == 1) return this[0] - this.DV
-    else if (this.t == 0) return -1
-  } else if (this.t == 1) return this[0]
-  else if (this.t == 0) return 0
-  // assumes 16 < DB < 32
-  return ((this[1] & ((1 << (32 - this.DB)) - 1)) << this.DB) | this[0]
+function check (script) {
+  var buffer = bscript.compile(script)
+
+  return buffer.length === 23 &&
+    buffer[0] === OPS.OP_HASH160 &&
+    buffer[1] === 0x14 &&
+    buffer[22] === OPS.OP_EQUAL
 }
+check.toJSON = function () { return 'scriptHash output' }
 
-// (public) return value as byte
-function bnByteValue() {
-  return (this.t == 0) ? this.s : (this[0] << 24) >> 24
+function encode (scriptHash) {
+  typeforce(types.Hash160bit, scriptHash)
+
+  return bscript.compile([OPS.OP_HASH160, scriptHash, OPS.OP_EQUAL])
 }
 
-// (public) return value as short (assumes DB>=16)
-function bnShortValue() {
-  return (this.t == 0) ? this.s : (this[0] << 16) >> 16
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return buffer.slice(2, 22)
 }
 
-// (protected) return x s.t. r^x < DV
-function bnpChunkSize(r) {
-  return Math.floor(Math.LN2 * this.DB / Math.log(r))
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// (public) 0 if this == 0, 1 if this > 0
-function bnSigNum() {
-  if (this.s < 0) return -1
-  else if (this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0
-  else return 1
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],70:[function(require,module,exports){
+module.exports = {
+  output: require('./output')
 }
 
-// (protected) convert to radix string
-function bnpToRadix(b) {
-  if (b == null) b = 10
-  if (this.signum() == 0 || b < 2 || b > 36) return "0"
-  var cs = this.chunkSize(b)
-  var a = Math.pow(b, cs)
-  var d = nbv(a),
-    y = new BigInteger(),
-    z = new BigInteger(),
-    r = ""
-  this.divRemTo(d, y, z)
-  while (y.signum() > 0) {
-    r = (a + z.intValue())
-      .toString(b)
-      .substr(1) + r
-    y.divRemTo(d, y, z)
-  }
-  return z.intValue()
-    .toString(b) + r
+},{"./output":71}],71:[function(require,module,exports){
+// OP_RETURN {aa21a9ed} {commitment}
+
+var Buffer = require('safe-buffer').Buffer
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+var HEADER = Buffer.from('aa21a9ed', 'hex')
+
+function check (script) {
+  var buffer = bscript.compile(script)
+
+  return buffer.length > 37 &&
+    buffer[0] === OPS.OP_RETURN &&
+    buffer[1] === 0x24 &&
+    buffer.slice(2, 6).equals(HEADER)
 }
 
-// (protected) convert from radix string
-function bnpFromRadix(s, b) {
-  var self = this
-  self.fromInt(0)
-  if (b == null) b = 10
-  var cs = self.chunkSize(b)
-  var d = Math.pow(b, cs),
-    mi = false,
-    j = 0,
-    w = 0
-  for (var i = 0; i < s.length; ++i) {
-    var x = intAt(s, i)
-    if (x < 0) {
-      if (s.charAt(i) == "-" && self.signum() == 0) mi = true
-      continue
-    }
-    w = b * w + x
-    if (++j >= cs) {
-      self.dMultiply(d)
-      self.dAddOffset(w, 0)
-      j = 0
-      w = 0
-    }
-  }
-  if (j > 0) {
-    self.dMultiply(Math.pow(b, j))
-    self.dAddOffset(w, 0)
-  }
-  if (mi) BigInteger.ZERO.subTo(self, self)
+check.toJSON = function () { return 'Witness commitment output' }
+
+function encode (commitment) {
+  typeforce(types.Hash256bit, commitment)
+
+  var buffer = Buffer.allocUnsafe(36)
+  HEADER.copy(buffer, 0)
+  commitment.copy(buffer, 4)
+
+  return bscript.compile([OPS.OP_RETURN, buffer])
 }
 
-// (protected) alternate constructor
-function bnpFromNumber(a, b, c) {
-  var self = this
-  if ("number" == typeof b) {
-    // new BigInteger(int,int,RNG)
-    if (a < 2) self.fromInt(1)
-    else {
-      self.fromNumber(a, c)
-      if (!self.testBit(a - 1)) // force MSB set
-        self.bitwiseTo(BigInteger.ONE.shiftLeft(a - 1), op_or, self)
-      if (self.isEven()) self.dAddOffset(1, 0); // force odd
-      while (!self.isProbablePrime(b)) {
-        self.dAddOffset(2, 0)
-        if (self.bitLength() > a) self.subTo(BigInteger.ONE.shiftLeft(a - 1), self)
-      }
-    }
-  } else {
-    // new BigInteger(int,RNG)
-    var x = new Array(),
-      t = a & 7
-    x.length = (a >> 3) + 1
-    b.nextBytes(x)
-    if (t > 0) x[0] &= ((1 << t) - 1)
-    else x[0] = 0
-    self.fromString(x, 256)
-  }
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return bscript.decompile(buffer)[1].slice(4, 36)
 }
 
-// (public) convert to bigendian byte array
-function bnToByteArray() {
-  var self = this
-  var i = self.t,
-    r = new Array()
-  r[0] = self.s
-  var p = self.DB - (i * self.DB) % 8,
-    d, k = 0
-  if (i-- > 0) {
-    if (p < self.DB && (d = self[i] >> p) != (self.s & self.DM) >> p)
-      r[k++] = d | (self.s << (self.DB - p))
-    while (i >= 0) {
-      if (p < 8) {
-        d = (self[i] & ((1 << p) - 1)) << (8 - p)
-        d |= self[--i] >> (p += self.DB - 8)
-      } else {
-        d = (self[i] >> (p -= 8)) & 0xff
-        if (p <= 0) {
-          p += self.DB
-          --i
-        }
-      }
-      if ((d & 0x80) != 0) d |= -256
-      if (k === 0 && (self.s & 0x80) != (d & 0x80))++k
-      if (k > 0 || d != self.s) r[k++] = d
-    }
-  }
-  return r
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-function bnEquals(a) {
-  return (this.compareTo(a) == 0)
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],72:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./input":73,"./output":74,"dup":57}],73:[function(require,module,exports){
+// {signature} {pubKey}
+
+var bscript = require('../../script')
+var typeforce = require('typeforce')
+
+function isCompressedCanonicalPubKey (pubKey) {
+  return bscript.isCanonicalPubKey(pubKey) && pubKey.length === 33
 }
 
-function bnMin(a) {
-  return (this.compareTo(a) < 0) ? this : a
+function check (script) {
+  var chunks = bscript.decompile(script)
+
+  return chunks.length === 2 &&
+    bscript.isCanonicalSignature(chunks[0]) &&
+    isCompressedCanonicalPubKey(chunks[1])
 }
+check.toJSON = function () { return 'witnessPubKeyHash input' }
 
-function bnMax(a) {
-  return (this.compareTo(a) > 0) ? this : a
+function encodeStack (signature, pubKey) {
+  typeforce({
+    signature: bscript.isCanonicalSignature,
+    pubKey: isCompressedCanonicalPubKey
+  }, {
+    signature: signature,
+    pubKey: pubKey
+  })
+
+  return [signature, pubKey]
 }
 
-// (protected) r = this op a (bitwise)
-function bnpBitwiseTo(a, op, r) {
-  var self = this
-  var i, f, m = Math.min(a.t, self.t)
-  for (i = 0; i < m; ++i) r[i] = op(self[i], a[i])
-  if (a.t < self.t) {
-    f = a.s & self.DM
-    for (i = m; i < self.t; ++i) r[i] = op(self[i], f)
-    r.t = self.t
-  } else {
-    f = self.s & self.DM
-    for (i = m; i < a.t; ++i) r[i] = op(f, a[i])
-    r.t = a.t
+function decodeStack (stack) {
+  typeforce(check, stack)
+
+  return {
+    signature: stack[0],
+    pubKey: stack[1]
   }
-  r.s = op(self.s, a.s)
-  r.clamp()
 }
 
-// (public) this & a
-function op_and(x, y) {
-  return x & y
+module.exports = {
+  check: check,
+  decodeStack: decodeStack,
+  encodeStack: encodeStack
 }
 
-function bnAnd(a) {
-  var r = new BigInteger()
-  this.bitwiseTo(a, op_and, r)
-  return r
-}
+},{"../../script":54,"typeforce":139}],74:[function(require,module,exports){
+// OP_0 {pubKeyHash}
 
-// (public) this | a
-function op_or(x, y) {
-  return x | y
-}
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
 
-function bnOr(a) {
-  var r = new BigInteger()
-  this.bitwiseTo(a, op_or, r)
-  return r
-}
+function check (script) {
+  var buffer = bscript.compile(script)
 
-// (public) this ^ a
-function op_xor(x, y) {
-  return x ^ y
+  return buffer.length === 22 &&
+    buffer[0] === OPS.OP_0 &&
+    buffer[1] === 0x14
 }
+check.toJSON = function () { return 'Witness pubKeyHash output' }
 
-function bnXor(a) {
-  var r = new BigInteger()
-  this.bitwiseTo(a, op_xor, r)
-  return r
-}
+function encode (pubKeyHash) {
+  typeforce(types.Hash160bit, pubKeyHash)
 
-// (public) this & ~a
-function op_andnot(x, y) {
-  return x & ~y
+  return bscript.compile([OPS.OP_0, pubKeyHash])
 }
 
-function bnAndNot(a) {
-  var r = new BigInteger()
-  this.bitwiseTo(a, op_andnot, r)
-  return r
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return buffer.slice(2)
 }
 
-// (public) ~this
-function bnNot() {
-  var r = new BigInteger()
-  for (var i = 0; i < this.t; ++i) r[i] = this.DM & ~this[i]
-  r.t = this.t
-  r.s = ~this.s
-  return r
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// (public) this << n
-function bnShiftLeft(n) {
-  var r = new BigInteger()
-  if (n < 0) this.rShiftTo(-n, r)
-  else this.lShiftTo(n, r)
-  return r
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],75:[function(require,module,exports){
+arguments[4][57][0].apply(exports,arguments)
+},{"./input":76,"./output":77,"dup":57}],76:[function(require,module,exports){
+(function (Buffer){
+// <scriptSig> {serialized scriptPubKey script}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+
+var p2ms = require('../multisig/')
+var p2pk = require('../pubkey/')
+var p2pkh = require('../pubkeyhash/')
+
+function check (chunks, allowIncomplete) {
+  typeforce(types.Array, chunks)
+  if (chunks.length < 1) return false
+
+  var witnessScript = chunks[chunks.length - 1]
+  if (!Buffer.isBuffer(witnessScript)) return false
+
+  var witnessScriptChunks = bscript.decompile(witnessScript)
+
+  // is witnessScript a valid script?
+  if (witnessScriptChunks.length === 0) return false
+
+  var witnessRawScriptSig = bscript.compile(chunks.slice(0, -1))
+
+  // match types
+  if (p2pkh.input.check(witnessRawScriptSig) &&
+    p2pkh.output.check(witnessScriptChunks)) return true
+
+  if (p2ms.input.check(witnessRawScriptSig, allowIncomplete) &&
+    p2ms.output.check(witnessScriptChunks)) return true
+
+  if (p2pk.input.check(witnessRawScriptSig) &&
+    p2pk.output.check(witnessScriptChunks)) return true
+
+  return false
 }
+check.toJSON = function () { return 'witnessScriptHash input' }
 
-// (public) this >> n
-function bnShiftRight(n) {
-  var r = new BigInteger()
-  if (n < 0) this.lShiftTo(-n, r)
-  else this.rShiftTo(n, r)
-  return r
+function encodeStack (witnessData, witnessScript) {
+  typeforce({
+    witnessData: [types.Buffer],
+    witnessScript: types.Buffer
+  }, {
+    witnessData: witnessData,
+    witnessScript: witnessScript
+  })
+
+  return [].concat(witnessData, witnessScript)
 }
 
-// return index of lowest 1-bit in x, x < 2^31
-function lbit(x) {
-  if (x == 0) return -1
-  var r = 0
-  if ((x & 0xffff) == 0) {
-    x >>= 16
-    r += 16
-  }
-  if ((x & 0xff) == 0) {
-    x >>= 8
-    r += 8
-  }
-  if ((x & 0xf) == 0) {
-    x >>= 4
-    r += 4
-  }
-  if ((x & 3) == 0) {
-    x >>= 2
-    r += 2
+function decodeStack (chunks) {
+  typeforce(check, chunks)
+  return {
+    witnessData: chunks.slice(0, -1),
+    witnessScript: chunks[chunks.length - 1]
   }
-  if ((x & 1) == 0)++r
-  return r
 }
 
-// (public) returns index of lowest 1-bit (or -1 if none)
-function bnGetLowestSetBit() {
-  for (var i = 0; i < this.t; ++i)
-    if (this[i] != 0) return i * this.DB + lbit(this[i])
-  if (this.s < 0) return this.t * this.DB
-  return -1
+module.exports = {
+  check: check,
+  decodeStack: decodeStack,
+  encodeStack: encodeStack
 }
 
-// return number of 1 bits in x
-function cbit(x) {
-  var r = 0
-  while (x != 0) {
-    x &= x - 1
-    ++r
-  }
-  return r
+}).call(this,{"isBuffer":require("../../../../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"../../script":54,"../../types":80,"../multisig/":57,"../pubkey/":61,"../pubkeyhash/":64,"typeforce":139}],77:[function(require,module,exports){
+// OP_0 {scriptHash}
+
+var bscript = require('../../script')
+var types = require('../../types')
+var typeforce = require('typeforce')
+var OPS = require('bitcoin-ops')
+
+function check (script) {
+  var buffer = bscript.compile(script)
+
+  return buffer.length === 34 &&
+    buffer[0] === OPS.OP_0 &&
+    buffer[1] === 0x20
 }
+check.toJSON = function () { return 'Witness scriptHash output' }
 
-// (public) return number of set bits
-function bnBitCount() {
-  var r = 0,
-    x = this.s & this.DM
-  for (var i = 0; i < this.t; ++i) r += cbit(this[i] ^ x)
-  return r
+function encode (scriptHash) {
+  typeforce(types.Hash256bit, scriptHash)
+
+  return bscript.compile([OPS.OP_0, scriptHash])
 }
 
-// (public) true iff nth bit is set
-function bnTestBit(n) {
-  var j = Math.floor(n / this.DB)
-  if (j >= this.t) return (this.s != 0)
-  return ((this[j] & (1 << (n % this.DB))) != 0)
+function decode (buffer) {
+  typeforce(check, buffer)
+
+  return buffer.slice(2)
 }
 
-// (protected) this op (1<<n)
-function bnpChangeBit(n, op) {
-  var r = BigInteger.ONE.shiftLeft(n)
-  this.bitwiseTo(r, op, r)
-  return r
+module.exports = {
+  check: check,
+  decode: decode,
+  encode: encode
 }
 
-// (public) this | (1<<n)
-function bnSetBit(n) {
-  return this.changeBit(n, op_or)
+},{"../../script":54,"../../types":80,"bitcoin-ops":42,"typeforce":139}],78:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var bcrypto = require('./crypto')
+var bscript = require('./script')
+var bufferutils = require('./bufferutils')
+var opcodes = require('bitcoin-ops')
+var typeforce = require('typeforce')
+var types = require('./types')
+var varuint = require('varuint-bitcoin')
+
+function varSliceSize (someScript) {
+  var length = someScript.length
+
+  return varuint.encodingLength(length) + length
 }
 
-// (public) this & ~(1<<n)
-function bnClearBit(n) {
-  return this.changeBit(n, op_andnot)
+function vectorSize (someVector) {
+  var length = someVector.length
+
+  return varuint.encodingLength(length) + someVector.reduce(function (sum, witness) {
+    return sum + varSliceSize(witness)
+  }, 0)
 }
 
-// (public) this ^ (1<<n)
-function bnFlipBit(n) {
-  return this.changeBit(n, op_xor)
+function Transaction () {
+  this.version = 1
+  this.locktime = 0
+  this.ins = []
+  this.outs = []
 }
 
-// (protected) r = this + a
-function bnpAddTo(a, r) {
-  var self = this
+Transaction.DEFAULT_SEQUENCE = 0xffffffff
+Transaction.SIGHASH_ALL = 0x01
+Transaction.SIGHASH_NONE = 0x02
+Transaction.SIGHASH_SINGLE = 0x03
+Transaction.SIGHASH_ANYONECANPAY = 0x80
+Transaction.ADVANCED_TRANSACTION_MARKER = 0x00
+Transaction.ADVANCED_TRANSACTION_FLAG = 0x01
 
-  var i = 0,
-    c = 0,
-    m = Math.min(a.t, self.t)
-  while (i < m) {
-    c += self[i] + a[i]
-    r[i++] = c & self.DM
-    c >>= self.DB
+var EMPTY_SCRIPT = Buffer.allocUnsafe(0)
+var EMPTY_WITNESS = []
+var ZERO = Buffer.from('0000000000000000000000000000000000000000000000000000000000000000', 'hex')
+var ONE = Buffer.from('0000000000000000000000000000000000000000000000000000000000000001', 'hex')
+var VALUE_UINT64_MAX = Buffer.from('ffffffffffffffff', 'hex')
+var BLANK_OUTPUT = {
+  script: EMPTY_SCRIPT,
+  valueBuffer: VALUE_UINT64_MAX
+}
+
+Transaction.fromBuffer = function (buffer, __noStrict) {
+  var offset = 0
+  function readSlice (n) {
+    offset += n
+    return buffer.slice(offset - n, offset)
   }
-  if (a.t < self.t) {
-    c += a.s
-    while (i < self.t) {
-      c += self[i]
-      r[i++] = c & self.DM
-      c >>= self.DB
-    }
-    c += self.s
-  } else {
-    c += self.s
-    while (i < a.t) {
-      c += a[i]
-      r[i++] = c & self.DM
-      c >>= self.DB
-    }
-    c += a.s
+
+  function readUInt32 () {
+    var i = buffer.readUInt32LE(offset)
+    offset += 4
+    return i
   }
-  r.s = (c < 0) ? -1 : 0
-  if (c > 0) r[i++] = c
-  else if (c < -1) r[i++] = self.DV + c
-  r.t = i
-  r.clamp()
-}
 
-// (public) this + a
-function bnAdd(a) {
-  var r = new BigInteger()
-  this.addTo(a, r)
-  return r
-}
+  function readInt32 () {
+    var i = buffer.readInt32LE(offset)
+    offset += 4
+    return i
+  }
+
+  function readUInt64 () {
+    var i = bufferutils.readUInt64LE(buffer, offset)
+    offset += 8
+    return i
+  }
+
+  function readVarInt () {
+    var vi = varuint.decode(buffer, offset)
+    offset += varuint.decode.bytes
+    return vi
+  }
+
+  function readVarSlice () {
+    return readSlice(readVarInt())
+  }
+
+  function readVector () {
+    var count = readVarInt()
+    var vector = []
+    for (var i = 0; i < count; i++) vector.push(readVarSlice())
+    return vector
+  }
+
+  var tx = new Transaction()
+  tx.version = readInt32()
+
+  var marker = buffer.readUInt8(offset)
+  var flag = buffer.readUInt8(offset + 1)
+
+  var hasWitnesses = false
+  if (marker === Transaction.ADVANCED_TRANSACTION_MARKER &&
+      flag === Transaction.ADVANCED_TRANSACTION_FLAG) {
+    offset += 2
+    hasWitnesses = true
+  }
+
+  var vinLen = readVarInt()
+  for (var i = 0; i < vinLen; ++i) {
+    tx.ins.push({
+      hash: readSlice(32),
+      index: readUInt32(),
+      script: readVarSlice(),
+      sequence: readUInt32(),
+      witness: EMPTY_WITNESS
+    })
+  }
+
+  var voutLen = readVarInt()
+  for (i = 0; i < voutLen; ++i) {
+    tx.outs.push({
+      value: readUInt64(),
+      script: readVarSlice()
+    })
+  }
+
+  if (hasWitnesses) {
+    for (i = 0; i < vinLen; ++i) {
+      tx.ins[i].witness = readVector()
+    }
+
+    // was this pointless?
+    if (!tx.hasWitnesses()) throw new Error('Transaction has superfluous witness data')
+  }
 
-// (public) this - a
-function bnSubtract(a) {
-  var r = new BigInteger()
-  this.subTo(a, r)
-  return r
-}
+  tx.locktime = readUInt32()
 
-// (public) this * a
-function bnMultiply(a) {
-  var r = new BigInteger()
-  this.multiplyTo(a, r)
-  return r
-}
+  if (__noStrict) return tx
+  if (offset !== buffer.length) throw new Error('Transaction has unexpected data')
 
-// (public) this^2
-function bnSquare() {
-  var r = new BigInteger()
-  this.squareTo(r)
-  return r
+  return tx
 }
 
-// (public) this / a
-function bnDivide(a) {
-  var r = new BigInteger()
-  this.divRemTo(a, r, null)
-  return r
+Transaction.fromHex = function (hex) {
+  return Transaction.fromBuffer(Buffer.from(hex, 'hex'))
 }
 
-// (public) this % a
-function bnRemainder(a) {
-  var r = new BigInteger()
-  this.divRemTo(a, null, r)
-  return r
+Transaction.isCoinbaseHash = function (buffer) {
+  typeforce(types.Hash256bit, buffer)
+  for (var i = 0; i < 32; ++i) {
+    if (buffer[i] !== 0) return false
+  }
+  return true
 }
 
-// (public) [this/a,this%a]
-function bnDivideAndRemainder(a) {
-  var q = new BigInteger(),
-    r = new BigInteger()
-  this.divRemTo(a, q, r)
-  return new Array(q, r)
+Transaction.prototype.isCoinbase = function () {
+  return this.ins.length === 1 && Transaction.isCoinbaseHash(this.ins[0].hash)
 }
 
-// (protected) this *= n, this >= 0, 1 < n < DV
-function bnpDMultiply(n) {
-  this[this.t] = this.am(0, n - 1, this, 0, 0, this.t)
-  ++this.t
-  this.clamp()
-}
+Transaction.prototype.addInput = function (hash, index, sequence, scriptSig) {
+  typeforce(types.tuple(
+    types.Hash256bit,
+    types.UInt32,
+    types.maybe(types.UInt32),
+    types.maybe(types.Buffer)
+  ), arguments)
 
-// (protected) this += n << w words, this >= 0
-function bnpDAddOffset(n, w) {
-  if (n == 0) return
-  while (this.t <= w) this[this.t++] = 0
-  this[w] += n
-  while (this[w] >= this.DV) {
-    this[w] -= this.DV
-    if (++w >= this.t) this[this.t++] = 0
-    ++this[w]
+  if (types.Null(sequence)) {
+    sequence = Transaction.DEFAULT_SEQUENCE
   }
+
+  // Add the input and return the input's index
+  return (this.ins.push({
+    hash: hash,
+    index: index,
+    script: scriptSig || EMPTY_SCRIPT,
+    sequence: sequence,
+    witness: EMPTY_WITNESS
+  }) - 1)
 }
 
-// A "null" reducer
-function NullExp() {}
+Transaction.prototype.addOutput = function (scriptPubKey, value) {
+  typeforce(types.tuple(types.Buffer, types.Satoshi), arguments)
 
-function nNop(x) {
-  return x
+  // Add the output and return the output's index
+  return (this.outs.push({
+    script: scriptPubKey,
+    value: value
+  }) - 1)
 }
 
-function nMulTo(x, y, r) {
-  x.multiplyTo(y, r)
+Transaction.prototype.hasWitnesses = function () {
+  return this.ins.some(function (x) {
+    return x.witness.length !== 0
+  })
 }
 
-function nSqrTo(x, r) {
-  x.squareTo(r)
+Transaction.prototype.weight = function () {
+  var base = this.__byteLength(false)
+  var total = this.__byteLength(true)
+  return base * 3 + total
 }
 
-NullExp.prototype.convert = nNop
-NullExp.prototype.revert = nNop
-NullExp.prototype.mulTo = nMulTo
-NullExp.prototype.sqrTo = nSqrTo
-
-// (public) this^e
-function bnPow(e) {
-  return this.exp(e, new NullExp())
+Transaction.prototype.virtualSize = function () {
+  return Math.ceil(this.weight() / 4)
 }
 
-// (protected) r = lower n words of "this * a", a.t <= n
-// "this" should be the larger one if appropriate.
-function bnpMultiplyLowerTo(a, n, r) {
-  var i = Math.min(this.t + a.t, n)
-  r.s = 0; // assumes a,this >= 0
-  r.t = i
-  while (i > 0) r[--i] = 0
-  var j
-  for (j = r.t - this.t; i < j; ++i) r[i + this.t] = this.am(0, a[i], r, i, 0, this.t)
-  for (j = Math.min(a.t, n); i < j; ++i) this.am(0, a[i], r, i, 0, n - i)
-  r.clamp()
+Transaction.prototype.byteLength = function () {
+  return this.__byteLength(true)
 }
 
-// (protected) r = "this * a" without lower n words, n > 0
-// "this" should be the larger one if appropriate.
-function bnpMultiplyUpperTo(a, n, r) {
-  --n
-  var i = r.t = this.t + a.t - n
-  r.s = 0; // assumes a,this >= 0
-  while (--i >= 0) r[i] = 0
-  for (i = Math.max(n - this.t, 0); i < a.t; ++i)
-    r[this.t + i - n] = this.am(n - i, a[i], r, 0, 0, this.t + i - n)
-  r.clamp()
-  r.drShiftTo(1, r)
-}
+Transaction.prototype.__byteLength = function (__allowWitness) {
+  var hasWitnesses = __allowWitness && this.hasWitnesses()
 
-// Barrett modular reduction
-function Barrett(m) {
-  // setup Barrett
-  this.r2 = new BigInteger()
-  this.q3 = new BigInteger()
-  BigInteger.ONE.dlShiftTo(2 * m.t, this.r2)
-  this.mu = this.r2.divide(m)
-  this.m = m
+  return (
+    (hasWitnesses ? 10 : 8) +
+    varuint.encodingLength(this.ins.length) +
+    varuint.encodingLength(this.outs.length) +
+    this.ins.reduce(function (sum, input) { return sum + 40 + varSliceSize(input.script) }, 0) +
+    this.outs.reduce(function (sum, output) { return sum + 8 + varSliceSize(output.script) }, 0) +
+    (hasWitnesses ? this.ins.reduce(function (sum, input) { return sum + vectorSize(input.witness) }, 0) : 0)
+  )
 }
 
-function barrettConvert(x) {
-  if (x.s < 0 || x.t > 2 * this.m.t) return x.mod(this.m)
-  else if (x.compareTo(this.m) < 0) return x
-  else {
-    var r = new BigInteger()
-    x.copyTo(r)
-    this.reduce(r)
-    return r
-  }
-}
+Transaction.prototype.clone = function () {
+  var newTx = new Transaction()
+  newTx.version = this.version
+  newTx.locktime = this.locktime
 
-function barrettRevert(x) {
-  return x
-}
+  newTx.ins = this.ins.map(function (txIn) {
+    return {
+      hash: txIn.hash,
+      index: txIn.index,
+      script: txIn.script,
+      sequence: txIn.sequence,
+      witness: txIn.witness
+    }
+  })
 
-// x = x mod m (HAC 14.42)
-function barrettReduce(x) {
-  var self = this
-  x.drShiftTo(self.m.t - 1, self.r2)
-  if (x.t > self.m.t + 1) {
-    x.t = self.m.t + 1
-    x.clamp()
-  }
-  self.mu.multiplyUpperTo(self.r2, self.m.t + 1, self.q3)
-  self.m.multiplyLowerTo(self.q3, self.m.t + 1, self.r2)
-  while (x.compareTo(self.r2) < 0) x.dAddOffset(1, self.m.t + 1)
-  x.subTo(self.r2, x)
-  while (x.compareTo(self.m) >= 0) x.subTo(self.m, x)
-}
+  newTx.outs = this.outs.map(function (txOut) {
+    return {
+      script: txOut.script,
+      value: txOut.value
+    }
+  })
 
-// r = x^2 mod m; x != r
-function barrettSqrTo(x, r) {
-  x.squareTo(r)
-  this.reduce(r)
+  return newTx
 }
 
-// r = x*y mod m; x,y != r
-function barrettMulTo(x, y, r) {
-  x.multiplyTo(y, r)
-  this.reduce(r)
-}
+/**
+ * Hash transaction for signing a specific input.
+ *
+ * Bitcoin uses a different hash for each signed transaction input.
+ * This method copies the transaction, makes the necessary changes based on the
+ * hashType, and then hashes the result.
+ * This hash can then be used to sign the provided transaction input.
+ */
+Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashType) {
+  typeforce(types.tuple(types.UInt32, types.Buffer, /* types.UInt8 */ types.Number), arguments)
 
-Barrett.prototype.convert = barrettConvert
-Barrett.prototype.revert = barrettRevert
-Barrett.prototype.reduce = barrettReduce
-Barrett.prototype.mulTo = barrettMulTo
-Barrett.prototype.sqrTo = barrettSqrTo
+  // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L29
+  if (inIndex >= this.ins.length) return ONE
 
-// (public) this^e % m (HAC 14.85)
-function bnModPow(e, m) {
-  var i = e.bitLength(),
-    k, r = nbv(1),
-    z
-  if (i <= 0) return r
-  else if (i < 18) k = 1
-  else if (i < 48) k = 3
-  else if (i < 144) k = 4
-  else if (i < 768) k = 5
-  else k = 6
-  if (i < 8)
-    z = new Classic(m)
-  else if (m.isEven())
-    z = new Barrett(m)
-  else
-    z = new Montgomery(m)
+  // ignore OP_CODESEPARATOR
+  var ourScript = bscript.compile(bscript.decompile(prevOutScript).filter(function (x) {
+    return x !== opcodes.OP_CODESEPARATOR
+  }))
 
-  // precomputation
-  var g = new Array(),
-    n = 3,
-    k1 = k - 1,
-    km = (1 << k) - 1
-  g[1] = z.convert(this)
-  if (k > 1) {
-    var g2 = new BigInteger()
-    z.sqrTo(g[1], g2)
-    while (n <= km) {
-      g[n] = new BigInteger()
-      z.mulTo(g2, g[n - 2], g[n])
-      n += 2
-    }
-  }
+  var txTmp = this.clone()
 
-  var j = e.t - 1,
-    w, is1 = true,
-    r2 = new BigInteger(),
-    t
-  i = nbits(e[j]) - 1
-  while (j >= 0) {
-    if (i >= k1) w = (e[j] >> (i - k1)) & km
-    else {
-      w = (e[j] & ((1 << (i + 1)) - 1)) << (k1 - i)
-      if (j > 0) w |= e[j - 1] >> (this.DB + i - k1)
-    }
+  // SIGHASH_NONE: ignore all outputs? (wildcard payee)
+  if ((hashType & 0x1f) === Transaction.SIGHASH_NONE) {
+    txTmp.outs = []
 
-    n = k
-    while ((w & 1) == 0) {
-      w >>= 1
-      --n
-    }
-    if ((i -= n) < 0) {
-      i += this.DB
-      --j
-    }
-    if (is1) { // ret == 1, don't bother squaring or multiplying it
-      g[w].copyTo(r)
-      is1 = false
-    } else {
-      while (n > 1) {
-        z.sqrTo(r, r2)
-        z.sqrTo(r2, r)
-        n -= 2
-      }
-      if (n > 0) z.sqrTo(r, r2)
-      else {
-        t = r
-        r = r2
-        r2 = t
-      }
-      z.mulTo(r2, g[w], r)
-    }
+    // ignore sequence numbers (except at inIndex)
+    txTmp.ins.forEach(function (input, i) {
+      if (i === inIndex) return
 
-    while (j >= 0 && (e[j] & (1 << i)) == 0) {
-      z.sqrTo(r, r2)
-      t = r
-      r = r2
-      r2 = t
-      if (--i < 0) {
-        i = this.DB - 1
-        --j
-      }
+      input.sequence = 0
+    })
+
+  // SIGHASH_SINGLE: ignore all outputs, except at the same index?
+  } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE) {
+    // https://github.com/bitcoin/bitcoin/blob/master/src/test/sighash_tests.cpp#L60
+    if (inIndex >= this.outs.length) return ONE
+
+    // truncate outputs after
+    txTmp.outs.length = inIndex + 1
+
+    // "blank" outputs before
+    for (var i = 0; i < inIndex; i++) {
+      txTmp.outs[i] = BLANK_OUTPUT
     }
-  }
-  return z.revert(r)
-}
 
-// (public) gcd(this,a) (HAC 14.54)
-function bnGCD(a) {
-  var x = (this.s < 0) ? this.negate() : this.clone()
-  var y = (a.s < 0) ? a.negate() : a.clone()
-  if (x.compareTo(y) < 0) {
-    var t = x
-    x = y
-    y = t
-  }
-  var i = x.getLowestSetBit(),
-    g = y.getLowestSetBit()
-  if (g < 0) return x
-  if (i < g) g = i
-  if (g > 0) {
-    x.rShiftTo(g, x)
-    y.rShiftTo(g, y)
+    // ignore sequence numbers (except at inIndex)
+    txTmp.ins.forEach(function (input, y) {
+      if (y === inIndex) return
+
+      input.sequence = 0
+    })
   }
-  while (x.signum() > 0) {
-    if ((i = x.getLowestSetBit()) > 0) x.rShiftTo(i, x)
-    if ((i = y.getLowestSetBit()) > 0) y.rShiftTo(i, y)
-    if (x.compareTo(y) >= 0) {
-      x.subTo(y, x)
-      x.rShiftTo(1, x)
-    } else {
-      y.subTo(x, y)
-      y.rShiftTo(1, y)
-    }
+
+  // SIGHASH_ANYONECANPAY: ignore inputs entirely?
+  if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
+    txTmp.ins = [txTmp.ins[inIndex]]
+    txTmp.ins[0].script = ourScript
+
+  // SIGHASH_ALL: only ignore input scripts
+  } else {
+    // "blank" others input scripts
+    txTmp.ins.forEach(function (input) { input.script = EMPTY_SCRIPT })
+    txTmp.ins[inIndex].script = ourScript
   }
-  if (g > 0) y.lShiftTo(g, y)
-  return y
-}
 
-// (protected) this % n, n < 2^26
-function bnpModInt(n) {
-  if (n <= 0) return 0
-  var d = this.DV % n,
-    r = (this.s < 0) ? n - 1 : 0
-  if (this.t > 0)
-    if (d == 0) r = this[0] % n
-    else
-      for (var i = this.t - 1; i >= 0; --i) r = (d * r + this[i]) % n
-  return r
+  // serialize and hash
+  var buffer = Buffer.allocUnsafe(txTmp.__byteLength(false) + 4)
+  buffer.writeInt32LE(hashType, buffer.length - 4)
+  txTmp.__toBuffer(buffer, 0, false)
+
+  return bcrypto.hash256(buffer)
 }
 
-// (public) 1/this % m (HAC 14.61)
-function bnModInverse(m) {
-  var ac = m.isEven()
-  if ((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO
-  var u = m.clone(),
-    v = this.clone()
-  var a = nbv(1),
-    b = nbv(0),
-    c = nbv(0),
-    d = nbv(1)
-  while (u.signum() != 0) {
-    while (u.isEven()) {
-      u.rShiftTo(1, u)
-      if (ac) {
-        if (!a.isEven() || !b.isEven()) {
-          a.addTo(this, a)
-          b.subTo(m, b)
-        }
-        a.rShiftTo(1, a)
-      } else if (!b.isEven()) b.subTo(m, b)
-      b.rShiftTo(1, b)
-    }
-    while (v.isEven()) {
-      v.rShiftTo(1, v)
-      if (ac) {
-        if (!c.isEven() || !d.isEven()) {
-          c.addTo(this, c)
-          d.subTo(m, d)
-        }
-        c.rShiftTo(1, c)
-      } else if (!d.isEven()) d.subTo(m, d)
-      d.rShiftTo(1, d)
-    }
-    if (u.compareTo(v) >= 0) {
-      u.subTo(v, u)
-      if (ac) a.subTo(c, a)
-      b.subTo(d, b)
-    } else {
-      v.subTo(u, v)
-      if (ac) c.subTo(a, c)
-      d.subTo(b, d)
-    }
+Transaction.prototype.hashForWitnessV0 = function (inIndex, prevOutScript, value, hashType) {
+  typeforce(types.tuple(types.UInt32, types.Buffer, types.Satoshi, types.UInt32), arguments)
+
+  var tbuffer, toffset
+  function writeSlice (slice) { toffset += slice.copy(tbuffer, toffset) }
+  function writeUInt32 (i) { toffset = tbuffer.writeUInt32LE(i, toffset) }
+  function writeUInt64 (i) { toffset = bufferutils.writeUInt64LE(tbuffer, i, toffset) }
+  function writeVarInt (i) {
+    varuint.encode(i, tbuffer, toffset)
+    toffset += varuint.encode.bytes
   }
-  if (v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO
-  if (d.compareTo(m) >= 0) return d.subtract(m)
-  if (d.signum() < 0) d.addTo(m, d)
-  else return d
-  if (d.signum() < 0) return d.add(m)
-  else return d
-}
+  function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) }
 
-var lowprimes = [
-  2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71,
-  73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151,
-  157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233,
-  239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317,
-  331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419,
-  421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503,
-  509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607,
-  613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701,
-  709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811,
-  821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911,
-  919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997
-]
+  var hashOutputs = ZERO
+  var hashPrevouts = ZERO
+  var hashSequence = ZERO
 
-var lplim = (1 << 26) / lowprimes[lowprimes.length - 1]
+  if (!(hashType & Transaction.SIGHASH_ANYONECANPAY)) {
+    tbuffer = Buffer.allocUnsafe(36 * this.ins.length)
+    toffset = 0
 
-// (public) test primality with certainty >= 1-.5^t
-function bnIsProbablePrime(t) {
-  var i, x = this.abs()
-  if (x.t == 1 && x[0] <= lowprimes[lowprimes.length - 1]) {
-    for (i = 0; i < lowprimes.length; ++i)
-      if (x[0] == lowprimes[i]) return true
-    return false
-  }
-  if (x.isEven()) return false
-  i = 1
-  while (i < lowprimes.length) {
-    var m = lowprimes[i],
-      j = i + 1
-    while (j < lowprimes.length && m < lplim) m *= lowprimes[j++]
-    m = x.modInt(m)
-    while (i < j) if (m % lowprimes[i++] == 0) return false
-  }
-  return x.millerRabin(t)
-}
+    this.ins.forEach(function (txIn) {
+      writeSlice(txIn.hash)
+      writeUInt32(txIn.index)
+    })
 
-// (protected) true if probably prime (HAC 4.24, Miller-Rabin)
-function bnpMillerRabin(t) {
-  var n1 = this.subtract(BigInteger.ONE)
-  var k = n1.getLowestSetBit()
-  if (k <= 0) return false
-  var r = n1.shiftRight(k)
-  t = (t + 1) >> 1
-  if (t > lowprimes.length) t = lowprimes.length
-  var a = new BigInteger(null)
-  var j, bases = []
-  for (var i = 0; i < t; ++i) {
-    for (;;) {
-      j = lowprimes[Math.floor(Math.random() * lowprimes.length)]
-      if (bases.indexOf(j) == -1) break
-    }
-    bases.push(j)
-    a.fromInt(j)
-    var y = a.modPow(r, this)
-    if (y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
-      var j = 1
-      while (j++ < k && y.compareTo(n1) != 0) {
-        y = y.modPowInt(2, this)
-        if (y.compareTo(BigInteger.ONE) == 0) return false
-      }
-      if (y.compareTo(n1) != 0) return false
-    }
+    hashPrevouts = bcrypto.hash256(tbuffer)
   }
-  return true
-}
 
-// protected
-proto.chunkSize = bnpChunkSize
-proto.toRadix = bnpToRadix
-proto.fromRadix = bnpFromRadix
-proto.fromNumber = bnpFromNumber
-proto.bitwiseTo = bnpBitwiseTo
-proto.changeBit = bnpChangeBit
-proto.addTo = bnpAddTo
-proto.dMultiply = bnpDMultiply
-proto.dAddOffset = bnpDAddOffset
-proto.multiplyLowerTo = bnpMultiplyLowerTo
-proto.multiplyUpperTo = bnpMultiplyUpperTo
-proto.modInt = bnpModInt
-proto.millerRabin = bnpMillerRabin
+  if (!(hashType & Transaction.SIGHASH_ANYONECANPAY) &&
+       (hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+       (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+    tbuffer = Buffer.allocUnsafe(4 * this.ins.length)
+    toffset = 0
 
-// public
-proto.clone = bnClone
-proto.intValue = bnIntValue
-proto.byteValue = bnByteValue
-proto.shortValue = bnShortValue
-proto.signum = bnSigNum
-proto.toByteArray = bnToByteArray
-proto.equals = bnEquals
-proto.min = bnMin
-proto.max = bnMax
-proto.and = bnAnd
-proto.or = bnOr
-proto.xor = bnXor
-proto.andNot = bnAndNot
-proto.not = bnNot
-proto.shiftLeft = bnShiftLeft
-proto.shiftRight = bnShiftRight
-proto.getLowestSetBit = bnGetLowestSetBit
-proto.bitCount = bnBitCount
-proto.testBit = bnTestBit
-proto.setBit = bnSetBit
-proto.clearBit = bnClearBit
-proto.flipBit = bnFlipBit
-proto.add = bnAdd
-proto.subtract = bnSubtract
-proto.multiply = bnMultiply
-proto.divide = bnDivide
-proto.remainder = bnRemainder
-proto.divideAndRemainder = bnDivideAndRemainder
-proto.modPow = bnModPow
-proto.modInverse = bnModInverse
-proto.pow = bnPow
-proto.gcd = bnGCD
-proto.isProbablePrime = bnIsProbablePrime
+    this.ins.forEach(function (txIn) {
+      writeUInt32(txIn.sequence)
+    })
 
-// JSBN-specific extension
-proto.square = bnSquare
+    hashSequence = bcrypto.hash256(tbuffer)
+  }
 
-// constants
-BigInteger.ZERO = nbv(0)
-BigInteger.ONE = nbv(1)
-BigInteger.valueOf = nbv
+  if ((hashType & 0x1f) !== Transaction.SIGHASH_SINGLE &&
+      (hashType & 0x1f) !== Transaction.SIGHASH_NONE) {
+    var txOutsSize = this.outs.reduce(function (sum, output) {
+      return sum + 8 + varSliceSize(output.script)
+    }, 0)
 
-module.exports = BigInteger
+    tbuffer = Buffer.allocUnsafe(txOutsSize)
+    toffset = 0
 
-},{"../package.json":4}],2:[function(require,module,exports){
-(function (Buffer){
-// FIXME: Kind of a weird way to throw exceptions, consider removing
-var assert = require('assert')
-var BigInteger = require('./bigi')
+    this.outs.forEach(function (out) {
+      writeUInt64(out.value)
+      writeVarSlice(out.script)
+    })
 
-/**
- * Turns a byte array into a big integer.
- *
- * This function will interpret a byte array as a big integer in big
- * endian notation.
- */
-BigInteger.fromByteArrayUnsigned = function(byteArray) {
-  // BigInteger expects a DER integer conformant byte array
-  if (byteArray[0] & 0x80) {
-    return new BigInteger([0].concat(byteArray))
+    hashOutputs = bcrypto.hash256(tbuffer)
+  } else if ((hashType & 0x1f) === Transaction.SIGHASH_SINGLE && inIndex < this.outs.length) {
+    var output = this.outs[inIndex]
+
+    tbuffer = Buffer.allocUnsafe(8 + varSliceSize(output.script))
+    toffset = 0
+    writeUInt64(output.value)
+    writeVarSlice(output.script)
+
+    hashOutputs = bcrypto.hash256(tbuffer)
   }
 
-  return new BigInteger(byteArray)
+  tbuffer = Buffer.allocUnsafe(156 + varSliceSize(prevOutScript))
+  toffset = 0
+
+  var input = this.ins[inIndex]
+  writeUInt32(this.version)
+  writeSlice(hashPrevouts)
+  writeSlice(hashSequence)
+  writeSlice(input.hash)
+  writeUInt32(input.index)
+  writeVarSlice(prevOutScript)
+  writeUInt64(value)
+  writeUInt32(input.sequence)
+  writeSlice(hashOutputs)
+  writeUInt32(this.locktime)
+  writeUInt32(hashType)
+  return bcrypto.hash256(tbuffer)
+}
+
+Transaction.prototype.getHash = function () {
+  return bcrypto.hash256(this.__toBuffer(undefined, undefined, false))
+}
+
+Transaction.prototype.getId = function () {
+  // transaction hash's are displayed in reverse order
+  return this.getHash().reverse().toString('hex')
 }
 
-/**
- * Returns a byte array representation of the big integer.
- *
- * This returns the absolute of the contained value in big endian
- * form. A value of zero results in an empty array.
- */
-BigInteger.prototype.toByteArrayUnsigned = function() {
-  var byteArray = this.toByteArray()
-  return byteArray[0] === 0 ? byteArray.slice(1) : byteArray
+Transaction.prototype.toBuffer = function (buffer, initialOffset) {
+  return this.__toBuffer(buffer, initialOffset, true)
 }
 
-BigInteger.fromDERInteger = function(byteArray) {
-  return new BigInteger(byteArray)
-}
+Transaction.prototype.__toBuffer = function (buffer, initialOffset, __allowWitness) {
+  if (!buffer) buffer = Buffer.allocUnsafe(this.__byteLength(__allowWitness))
 
-/*
- * Converts BigInteger to a DER integer representation.
- *
- * The format for this value uses the most significant bit as a sign
- * bit.  If the most significant bit is already set and the integer is
- * positive, a 0x00 is prepended.
- *
- * Examples:
- *
- *      0 =>     0x00
- *      1 =>     0x01
- *     -1 =>     0xff
- *    127 =>     0x7f
- *   -127 =>     0x81
- *    128 =>   0x0080
- *   -128 =>     0x80
- *    255 =>   0x00ff
- *   -255 =>   0xff01
- *  16300 =>   0x3fac
- * -16300 =>   0xc054
- *  62300 => 0x00f35c
- * -62300 => 0xff0ca4
-*/
-BigInteger.prototype.toDERInteger = BigInteger.prototype.toByteArray
+  var offset = initialOffset || 0
+  function writeSlice (slice) { offset += slice.copy(buffer, offset) }
+  function writeUInt8 (i) { offset = buffer.writeUInt8(i, offset) }
+  function writeUInt32 (i) { offset = buffer.writeUInt32LE(i, offset) }
+  function writeInt32 (i) { offset = buffer.writeInt32LE(i, offset) }
+  function writeUInt64 (i) { offset = bufferutils.writeUInt64LE(buffer, i, offset) }
+  function writeVarInt (i) {
+    varuint.encode(i, buffer, offset)
+    offset += varuint.encode.bytes
+  }
+  function writeVarSlice (slice) { writeVarInt(slice.length); writeSlice(slice) }
+  function writeVector (vector) { writeVarInt(vector.length); vector.forEach(writeVarSlice) }
 
-BigInteger.fromBuffer = function(buffer) {
-  // BigInteger expects a DER integer conformant byte array
-  if (buffer[0] & 0x80) {
-    var byteArray = Array.prototype.slice.call(buffer)
+  writeInt32(this.version)
 
-    return new BigInteger([0].concat(byteArray))
+  var hasWitnesses = __allowWitness && this.hasWitnesses()
+
+  if (hasWitnesses) {
+    writeUInt8(Transaction.ADVANCED_TRANSACTION_MARKER)
+    writeUInt8(Transaction.ADVANCED_TRANSACTION_FLAG)
   }
 
-  return new BigInteger(buffer)
-}
+  writeVarInt(this.ins.length)
 
-BigInteger.fromHex = function(hex) {
-  if (hex === '') return BigInteger.ZERO
+  this.ins.forEach(function (txIn) {
+    writeSlice(txIn.hash)
+    writeUInt32(txIn.index)
+    writeVarSlice(txIn.script)
+    writeUInt32(txIn.sequence)
+  })
 
-  assert.equal(hex, hex.match(/^[A-Fa-f0-9]+/), 'Invalid hex string')
-  assert.equal(hex.length % 2, 0, 'Incomplete hex')
-  return new BigInteger(hex, 16)
-}
+  writeVarInt(this.outs.length)
+  this.outs.forEach(function (txOut) {
+    if (!txOut.valueBuffer) {
+      writeUInt64(txOut.value)
+    } else {
+      writeSlice(txOut.valueBuffer)
+    }
 
-BigInteger.prototype.toBuffer = function(size) {
-  var byteArray = this.toByteArrayUnsigned()
-  var zeros = []
+    writeVarSlice(txOut.script)
+  })
 
-  var padding = size - byteArray.length
-  while (zeros.length < padding) zeros.push(0)
+  if (hasWitnesses) {
+    this.ins.forEach(function (input) {
+      writeVector(input.witness)
+    })
+  }
 
-  return new Buffer(zeros.concat(byteArray))
+  writeUInt32(this.locktime)
+
+  // avoid slicing unless necessary
+  if (initialOffset !== undefined) return buffer.slice(initialOffset, offset)
+  return buffer
 }
 
-BigInteger.prototype.toHex = function(size) {
-  return this.toBuffer(size).toString('hex')
+Transaction.prototype.toHex = function () {
+  return this.toBuffer().toString('hex')
 }
 
-}).call(this,require("buffer").Buffer)
-},{"./bigi":1,"assert":5,"buffer":7}],3:[function(require,module,exports){
-var BigInteger = require('./bigi')
+Transaction.prototype.setInputScript = function (index, scriptSig) {
+  typeforce(types.tuple(types.Number, types.Buffer), arguments)
 
-//addons
-require('./convert')
+  this.ins[index].script = scriptSig
+}
 
-module.exports = BigInteger
-},{"./bigi":1,"./convert":2}],4:[function(require,module,exports){
-module.exports={
-  "name": "bigi",
-  "version": "1.4.0",
-  "description": "Big integers.",
-  "keywords": [
-    "cryptography",
-    "math",
-    "bitcoin",
-    "arbitrary",
-    "precision",
-    "arithmetic",
-    "big",
-    "integer",
-    "int",
-    "number",
-    "biginteger",
-    "bigint",
-    "bignumber",
-    "decimal",
-    "float"
-  ],
-  "devDependencies": {
-    "mocha": "^1.20.1",
-    "jshint": "^2.5.1",
-    "coveralls": "^2.10.0",
-    "istanbul": "^0.2.11"
-  },
-  "repository": {
-    "url": "https://github.com/cryptocoinjs/bigi",
-    "type": "git"
-  },
-  "main": "./lib/index.js",
-  "scripts": {
-    "test": "_mocha -- test/*.js",
-    "jshint": "jshint --config jshint.json lib/*.js ; true",
-    "unit": "mocha",
-    "coverage": "istanbul cover ./node_modules/.bin/_mocha -- --reporter list test/*.js",
-    "coveralls": "npm run-script coverage && node ./node_modules/.bin/coveralls < coverage/lcov.info"
-  },
-  "dependencies": {},
-  "testling": {
-    "files": "test/*.js",
-    "harness": "mocha",
-    "browsers": [
-      "ie/9..latest",
-      "firefox/latest",
-      "chrome/latest",
-      "safari/6.0..latest",
-      "iphone/6.0..latest",
-      "android-browser/4.2..latest"
-    ]
-  },
-  "bugs": {
-    "url": "https://github.com/cryptocoinjs/bigi/issues"
-  },
-  "homepage": "https://github.com/cryptocoinjs/bigi",
-  "_id": "bigi@1.4.0",
-  "dist": {
-    "shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
-    "tarball": "http://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
-  },
-  "_from": "bigi@^1.4.0",
-  "_npmVersion": "1.4.3",
-  "_npmUser": {
-    "name": "jp",
-    "email": "jprichardson@gmail.com"
-  },
-  "maintainers": [
-    {
-      "name": "jp",
-      "email": "jprichardson@gmail.com"
-    },
-    {
-      "name": "midnightlightning",
-      "email": "boydb@midnightdesign.ws"
-    },
-    {
-      "name": "sidazhang",
-      "email": "sidazhang89@gmail.com"
-    },
-    {
-      "name": "nadav",
-      "email": "npm@shesek.info"
-    }
-  ],
-  "directories": {},
-  "_shasum": "90ac1aeac0a531216463bdb58f42c1e05c8407ac",
-  "_resolved": "https://registry.npmjs.org/bigi/-/bigi-1.4.0.tgz"
+Transaction.prototype.setWitness = function (index, witness) {
+  typeforce(types.tuple(types.Number, [types.Buffer]), arguments)
+
+  this.ins[index].witness = witness
 }
 
-},{}],5:[function(require,module,exports){
-// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
-//
-// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
-//
-// Originally from narwhal.js (http://narwhaljs.org)
-// Copyright (c) 2009 Thomas Robinson <280north.com>
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the 'Software'), to
-// deal in the Software without restriction, including without limitation the
-// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-// sell copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+module.exports = Transaction
 
-// when used in node, this will actually load the util module we depend on
-// versus loading the builtin util module as happens otherwise
-// this is a bug in node module loading as far as I am concerned
-var util = require('util/');
+},{"./bufferutils":46,"./crypto":47,"./script":54,"./types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139,"varuint-bitcoin":141}],79:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var baddress = require('./address')
+var bcrypto = require('./crypto')
+var bscript = require('./script')
+var btemplates = require('./templates')
+var networks = require('./networks')
+var ops = require('bitcoin-ops')
+var typeforce = require('typeforce')
+var types = require('./types')
+var scriptTypes = btemplates.types
+var SIGNABLE = [btemplates.types.P2PKH, btemplates.types.P2PK, btemplates.types.MULTISIG]
+var P2SH = SIGNABLE.concat([btemplates.types.P2WPKH, btemplates.types.P2WSH])
+
+var ECPair = require('./ecpair')
+var ECSignature = require('./ecsignature')
+var Transaction = require('./transaction')
 
-var pSlice = Array.prototype.slice;
-var hasOwn = Object.prototype.hasOwnProperty;
+function supportedType (type) {
+  return SIGNABLE.indexOf(type) !== -1
+}
 
-// 1. The assert module provides functions that throw
-// AssertionError's when particular conditions are not met. The
-// assert module must conform to the following interface.
+function supportedP2SHType (type) {
+  return P2SH.indexOf(type) !== -1
+}
 
-var assert = module.exports = ok;
+function extractChunks (type, chunks, script) {
+  var pubKeys = []
+  var signatures = []
+  switch (type) {
+    case scriptTypes.P2PKH:
+      // if (redeemScript) throw new Error('Nonstandard... P2SH(P2PKH)')
+      pubKeys = chunks.slice(1)
+      signatures = chunks.slice(0, 1)
+      break
 
-// 2. The AssertionError is defined in assert.
-// new assert.AssertionError({ message: message,
-//                             actual: actual,
-//                             expected: expected })
+    case scriptTypes.P2PK:
+      pubKeys[0] = script ? btemplates.pubKey.output.decode(script) : undefined
+      signatures = chunks.slice(0, 1)
+      break
 
-assert.AssertionError = function AssertionError(options) {
-  this.name = 'AssertionError';
-  this.actual = options.actual;
-  this.expected = options.expected;
-  this.operator = options.operator;
-  if (options.message) {
-    this.message = options.message;
-    this.generatedMessage = false;
-  } else {
-    this.message = getMessage(this);
-    this.generatedMessage = true;
+    case scriptTypes.MULTISIG:
+      if (script) {
+        var multisig = btemplates.multisig.output.decode(script)
+        pubKeys = multisig.pubKeys
+      }
+
+      signatures = chunks.slice(1).map(function (chunk) {
+        return chunk.length === 0 ? undefined : chunk
+      })
+      break
   }
-  var stackStartFunction = options.stackStartFunction || fail;
 
-  if (Error.captureStackTrace) {
-    Error.captureStackTrace(this, stackStartFunction);
+  return {
+    pubKeys: pubKeys,
+    signatures: signatures
   }
-  else {
-    // non v8 browsers so we can have a stacktrace
-    var err = new Error();
-    if (err.stack) {
-      var out = err.stack;
+}
+function expandInput (scriptSig, witnessStack) {
+  if (scriptSig.length === 0 && witnessStack.length === 0) return {}
 
-      // try to strip useless frames
-      var fn_name = stackStartFunction.name;
-      var idx = out.indexOf('\n' + fn_name);
-      if (idx >= 0) {
-        // once we have located the function frame
-        // we need to strip out everything before it (and its line)
-        var next_line = out.indexOf('\n', idx + 1);
-        out = out.substring(next_line + 1);
+  var prevOutScript
+  var prevOutType
+  var scriptType
+  var script
+  var redeemScript
+  var witnessScript
+  var witnessScriptType
+  var redeemScriptType
+  var witness = false
+  var p2wsh = false
+  var p2sh = false
+  var witnessProgram
+  var chunks
+
+  var scriptSigChunks = bscript.decompile(scriptSig)
+  var sigType = btemplates.classifyInput(scriptSigChunks, true)
+  if (sigType === scriptTypes.P2SH) {
+    p2sh = true
+    redeemScript = scriptSigChunks[scriptSigChunks.length - 1]
+    redeemScriptType = btemplates.classifyOutput(redeemScript)
+    prevOutScript = btemplates.scriptHash.output.encode(bcrypto.hash160(redeemScript))
+    prevOutType = scriptTypes.P2SH
+    script = redeemScript
+  }
+
+  var classifyWitness = btemplates.classifyWitness(witnessStack, true)
+  if (classifyWitness === scriptTypes.P2WSH) {
+    witnessScript = witnessStack[witnessStack.length - 1]
+    witnessScriptType = btemplates.classifyOutput(witnessScript)
+    p2wsh = true
+    witness = true
+    if (scriptSig.length === 0) {
+      prevOutScript = btemplates.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+      prevOutType = scriptTypes.P2WSH
+      if (redeemScript !== undefined) {
+        throw new Error('Redeem script given when unnecessary')
+      }
+      // bare witness
+    } else {
+      if (!redeemScript) {
+        throw new Error('No redeemScript provided for P2WSH, but scriptSig non-empty')
+      }
+      witnessProgram = btemplates.witnessScriptHash.output.encode(bcrypto.sha256(witnessScript))
+      if (!redeemScript.equals(witnessProgram)) {
+        throw new Error('Redeem script didn\'t match witnessScript')
       }
+    }
 
-      this.stack = out;
+    if (!supportedType(btemplates.classifyOutput(witnessScript))) {
+      throw new Error('unsupported witness script')
     }
-  }
-};
 
-// assert.AssertionError instanceof Error
-util.inherits(assert.AssertionError, Error);
+    script = witnessScript
+    scriptType = witnessScriptType
+    chunks = witnessStack.slice(0, -1)
+  } else if (classifyWitness === scriptTypes.P2WPKH) {
+    witness = true
+    var key = witnessStack[witnessStack.length - 1]
+    var keyHash = bcrypto.hash160(key)
+    if (scriptSig.length === 0) {
+      prevOutScript = btemplates.witnessPubKeyHash.output.encode(keyHash)
+      prevOutType = scriptTypes.P2WPKH
+      if (typeof redeemScript !== 'undefined') {
+        throw new Error('Redeem script given when unnecessary')
+      }
+    } else {
+      if (!redeemScript) {
+        throw new Error('No redeemScript provided for P2WPKH, but scriptSig wasn\'t empty')
+      }
+      witnessProgram = btemplates.witnessPubKeyHash.output.encode(keyHash)
+      if (!redeemScript.equals(witnessProgram)) {
+        throw new Error('Redeem script did not have the right witness program')
+      }
+    }
+
+    scriptType = scriptTypes.P2PKH
+    chunks = witnessStack
+  } else if (redeemScript) {
+    if (!supportedP2SHType(redeemScriptType)) {
+      throw new Error('Bad redeemscript!')
+    }
 
-function replacer(key, value) {
-  if (util.isUndefined(value)) {
-    return '' + value;
+    script = redeemScript
+    scriptType = redeemScriptType
+    chunks = scriptSigChunks.slice(0, -1)
+  } else {
+    prevOutType = scriptType = btemplates.classifyInput(scriptSig)
+    chunks = scriptSigChunks
   }
-  if (util.isNumber(value) && !isFinite(value)) {
-    return value.toString();
+
+  var expanded = extractChunks(scriptType, chunks, script)
+
+  var result = {
+    pubKeys: expanded.pubKeys,
+    signatures: expanded.signatures,
+    prevOutScript: prevOutScript,
+    prevOutType: prevOutType,
+    signType: scriptType,
+    signScript: script,
+    witness: Boolean(witness)
   }
-  if (util.isFunction(value) || util.isRegExp(value)) {
-    return value.toString();
+
+  if (p2sh) {
+    result.redeemScript = redeemScript
+    result.redeemScriptType = redeemScriptType
   }
-  return value;
-}
 
-function truncate(s, n) {
-  if (util.isString(s)) {
-    return s.length < n ? s : s.slice(0, n);
-  } else {
-    return s;
+  if (p2wsh) {
+    result.witnessScript = witnessScript
+    result.witnessScriptType = witnessScriptType
   }
-}
 
-function getMessage(self) {
-  return truncate(JSON.stringify(self.actual, replacer), 128) + ' ' +
-         self.operator + ' ' +
-         truncate(JSON.stringify(self.expected, replacer), 128);
+  return result
 }
 
-// At present only the three keys mentioned above are used and
-// understood by the spec. Implementations or sub modules can pass
-// other keys to the AssertionError's constructor - they will be
-// ignored.
-
-// 3. All of the following functions must throw an AssertionError
-// when a corresponding condition is not met, with a message that
-// may be undefined if not provided.  All assertion methods provide
-// both the actual and expected values to the assertion error for
-// display purposes.
+// could be done in expandInput, but requires the original Transaction for hashForSignature
+function fixMultisigOrder (input, transaction, vin) {
+  if (input.redeemScriptType !== scriptTypes.MULTISIG || !input.redeemScript) return
+  if (input.pubKeys.length === input.signatures.length) return
 
-function fail(actual, expected, message, operator, stackStartFunction) {
-  throw new assert.AssertionError({
-    message: message,
-    actual: actual,
-    expected: expected,
-    operator: operator,
-    stackStartFunction: stackStartFunction
-  });
-}
+  var unmatched = input.signatures.concat()
 
-// EXTENSION! allows for well behaved errors defined elsewhere.
-assert.fail = fail;
+  input.signatures = input.pubKeys.map(function (pubKey) {
+    var keyPair = ECPair.fromPublicKeyBuffer(pubKey)
+    var match
 
-// 4. Pure assertion tests whether a value is truthy, as determined
-// by !!guard.
-// assert.ok(guard, message_opt);
-// This statement is equivalent to assert.equal(true, !!guard,
-// message_opt);. To test strictly for the value true, use
-// assert.strictEqual(true, guard, message_opt);.
+    // check for a signature
+    unmatched.some(function (signature, i) {
+      // skip if undefined || OP_0
+      if (!signature) return false
 
-function ok(value, message) {
-  if (!value) fail(value, true, message, '==', assert.ok);
-}
-assert.ok = ok;
+      // TODO: avoid O(n) hashForSignature
+      var parsed = ECSignature.parseScriptSignature(signature)
+      var hash = transaction.hashForSignature(vin, input.redeemScript, parsed.hashType)
 
-// 5. The equality assertion tests shallow, coercive equality with
-// ==.
-// assert.equal(actual, expected, message_opt);
+      // skip if signature does not match pubKey
+      if (!keyPair.verify(hash, parsed.signature)) return false
 
-assert.equal = function equal(actual, expected, message) {
-  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
-};
+      // remove matched signature from unmatched
+      unmatched[i] = undefined
+      match = signature
 
-// 6. The non-equality assertion tests for whether two objects are not equal
-// with != assert.notEqual(actual, expected, message_opt);
+      return true
+    })
 
-assert.notEqual = function notEqual(actual, expected, message) {
-  if (actual == expected) {
-    fail(actual, expected, message, '!=', assert.notEqual);
-  }
-};
+    return match
+  })
+}
 
-// 7. The equivalence assertion tests a deep equality relation.
-// assert.deepEqual(actual, expected, message_opt);
+function expandOutput (script, scriptType, ourPubKey) {
+  typeforce(types.Buffer, script)
 
-assert.deepEqual = function deepEqual(actual, expected, message) {
-  if (!_deepEqual(actual, expected)) {
-    fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+  var scriptChunks = bscript.decompile(script)
+  if (!scriptType) {
+    scriptType = btemplates.classifyOutput(script)
   }
-};
 
-function _deepEqual(actual, expected) {
-  // 7.1. All identical values are equivalent, as determined by ===.
-  if (actual === expected) {
-    return true;
+  var pubKeys = []
 
-  } else if (util.isBuffer(actual) && util.isBuffer(expected)) {
-    if (actual.length != expected.length) return false;
+  switch (scriptType) {
+    // does our hash160(pubKey) match the output scripts?
+    case scriptTypes.P2PKH:
+      if (!ourPubKey) break
 
-    for (var i = 0; i < actual.length; i++) {
-      if (actual[i] !== expected[i]) return false;
-    }
+      var pkh1 = scriptChunks[2]
+      var pkh2 = bcrypto.hash160(ourPubKey)
+      if (pkh1.equals(pkh2)) pubKeys = [ourPubKey]
+      break
 
-    return true;
+    // does our hash160(pubKey) match the output scripts?
+    case scriptTypes.P2WPKH:
+      if (!ourPubKey) break
 
-  // 7.2. If the expected value is a Date object, the actual value is
-  // equivalent if it is also a Date object that refers to the same time.
-  } else if (util.isDate(actual) && util.isDate(expected)) {
-    return actual.getTime() === expected.getTime();
+      var wpkh1 = scriptChunks[1]
+      var wpkh2 = bcrypto.hash160(ourPubKey)
+      if (wpkh1.equals(wpkh2)) pubKeys = [ourPubKey]
+      break
 
-  // 7.3 If the expected value is a RegExp object, the actual value is
-  // equivalent if it is also a RegExp object with the same source and
-  // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
-  } else if (util.isRegExp(actual) && util.isRegExp(expected)) {
-    return actual.source === expected.source &&
-           actual.global === expected.global &&
-           actual.multiline === expected.multiline &&
-           actual.lastIndex === expected.lastIndex &&
-           actual.ignoreCase === expected.ignoreCase;
+    case scriptTypes.P2PK:
+      pubKeys = scriptChunks.slice(0, 1)
+      break
 
-  // 7.4. Other pairs that do not both pass typeof value == 'object',
-  // equivalence is determined by ==.
-  } else if (!util.isObject(actual) && !util.isObject(expected)) {
-    return actual == expected;
+    case scriptTypes.MULTISIG:
+      pubKeys = scriptChunks.slice(1, -2)
+      break
 
-  // 7.5 For all other Object pairs, including Array objects, equivalence is
-  // determined by having the same number of owned properties (as verified
-  // with Object.prototype.hasOwnProperty.call), the same set of keys
-  // (although not necessarily the same order), equivalent values for every
-  // corresponding key, and an identical 'prototype' property. Note: this
-  // accounts for both named and indexed properties on Arrays.
-  } else {
-    return objEquiv(actual, expected);
+    default: return { scriptType: scriptType }
   }
-}
 
-function isArguments(object) {
-  return Object.prototype.toString.call(object) == '[object Arguments]';
+  return {
+    pubKeys: pubKeys,
+    scriptType: scriptType,
+    signatures: pubKeys.map(function () { return undefined })
+  }
 }
 
-function objEquiv(a, b) {
-  if (util.isNullOrUndefined(a) || util.isNullOrUndefined(b))
-    return false;
-  // an identical 'prototype' property.
-  if (a.prototype !== b.prototype) return false;
-  // if one is a primitive, the other must be same
-  if (util.isPrimitive(a) || util.isPrimitive(b)) {
-    return a === b;
-  }
-  var aIsArgs = isArguments(a),
-      bIsArgs = isArguments(b);
-  if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
-    return false;
-  if (aIsArgs) {
-    a = pSlice.call(a);
-    b = pSlice.call(b);
-    return _deepEqual(a, b);
-  }
-  var ka = objectKeys(a),
-      kb = objectKeys(b),
-      key, i;
-  // having the same number of owned properties (keys incorporates
-  // hasOwnProperty)
-  if (ka.length != kb.length)
-    return false;
-  //the same set of keys (although not necessarily the same order),
-  ka.sort();
-  kb.sort();
-  //~~~cheap key test
-  for (i = ka.length - 1; i >= 0; i--) {
-    if (ka[i] != kb[i])
-      return false;
-  }
-  //equivalent values for every corresponding key, and
-  //~~~possibly expensive deep test
-  for (i = ka.length - 1; i >= 0; i--) {
-    key = ka[i];
-    if (!_deepEqual(a[key], b[key])) return false;
+function checkP2SHInput (input, redeemScriptHash) {
+  if (input.prevOutType) {
+    if (input.prevOutType !== scriptTypes.P2SH) throw new Error('PrevOutScript must be P2SH')
+
+    var prevOutScriptScriptHash = bscript.decompile(input.prevOutScript)[1]
+    if (!prevOutScriptScriptHash.equals(redeemScriptHash)) throw new Error('Inconsistent hash160(RedeemScript)')
   }
-  return true;
 }
 
-// 8. The non-equivalence assertion tests for any deep inequality.
-// assert.notDeepEqual(actual, expected, message_opt);
+function checkP2WSHInput (input, witnessScriptHash) {
+  if (input.prevOutType) {
+    if (input.prevOutType !== scriptTypes.P2WSH) throw new Error('PrevOutScript must be P2WSH')
 
-assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
-  if (_deepEqual(actual, expected)) {
-    fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+    var scriptHash = bscript.decompile(input.prevOutScript)[1]
+    if (!scriptHash.equals(witnessScriptHash)) throw new Error('Inconsistent sha25(WitnessScript)')
   }
-};
+}
 
-// 9. The strict equality assertion tests strict equality, as determined by ===.
-// assert.strictEqual(actual, expected, message_opt);
+function prepareInput (input, kpPubKey, redeemScript, witnessValue, witnessScript) {
+  var expanded
+  var prevOutType
+  var prevOutScript
 
-assert.strictEqual = function strictEqual(actual, expected, message) {
-  if (actual !== expected) {
-    fail(actual, expected, message, '===', assert.strictEqual);
+  var p2sh = false
+  var p2shType
+  var redeemScriptHash
+
+  var witness = false
+  var p2wsh = false
+  var witnessType
+  var witnessScriptHash
+
+  var signType
+  var signScript
+
+  if (redeemScript && witnessScript) {
+    redeemScriptHash = bcrypto.hash160(redeemScript)
+    witnessScriptHash = bcrypto.sha256(witnessScript)
+    checkP2SHInput(input, redeemScriptHash)
+
+    if (!redeemScript.equals(btemplates.witnessScriptHash.output.encode(witnessScriptHash))) throw new Error('Witness script inconsistent with redeem script')
+
+    expanded = expandOutput(witnessScript, undefined, kpPubKey)
+    if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"')
+
+    prevOutType = btemplates.types.P2SH
+    prevOutScript = btemplates.scriptHash.output.encode(redeemScriptHash)
+    p2sh = witness = p2wsh = true
+    p2shType = btemplates.types.P2WSH
+    signType = witnessType = expanded.scriptType
+    signScript = witnessScript
+  } else if (redeemScript) {
+    redeemScriptHash = bcrypto.hash160(redeemScript)
+    checkP2SHInput(input, redeemScriptHash)
+
+    expanded = expandOutput(redeemScript, undefined, kpPubKey)
+    if (!expanded.pubKeys) throw new Error('RedeemScript not supported "' + bscript.toASM(redeemScript) + '"')
+
+    prevOutType = btemplates.types.P2SH
+    prevOutScript = btemplates.scriptHash.output.encode(redeemScriptHash)
+    p2sh = true
+    signType = p2shType = expanded.scriptType
+    signScript = redeemScript
+    witness = signType === btemplates.types.P2WPKH
+  } else if (witnessScript) {
+    witnessScriptHash = bcrypto.sha256(witnessScript)
+    checkP2WSHInput(input, witnessScriptHash)
+
+    expanded = expandOutput(witnessScript, undefined, kpPubKey)
+    if (!expanded.pubKeys) throw new Error('WitnessScript not supported "' + bscript.toASM(redeemScript) + '"')
+
+    prevOutType = btemplates.types.P2WSH
+    prevOutScript = btemplates.witnessScriptHash.output.encode(witnessScriptHash)
+    witness = p2wsh = true
+    signType = witnessType = expanded.scriptType
+    signScript = witnessScript
+  } else if (input.prevOutType) {
+    // embedded scripts are not possible without a redeemScript
+    if (input.prevOutType === scriptTypes.P2SH ||
+      input.prevOutType === scriptTypes.P2WSH) {
+      throw new Error('PrevOutScript is ' + input.prevOutType + ', requires redeemScript')
+    }
+
+    prevOutType = input.prevOutType
+    prevOutScript = input.prevOutScript
+    expanded = expandOutput(input.prevOutScript, input.prevOutType, kpPubKey)
+    if (!expanded.pubKeys) return
+
+    witness = (input.prevOutType === scriptTypes.P2WPKH)
+    signType = prevOutType
+    signScript = prevOutScript
+  } else {
+    prevOutScript = btemplates.pubKeyHash.output.encode(bcrypto.hash160(kpPubKey))
+    expanded = expandOutput(prevOutScript, scriptTypes.P2PKH, kpPubKey)
+
+    prevOutType = scriptTypes.P2PKH
+    witness = false
+    signType = prevOutType
+    signScript = prevOutScript
   }
-};
 
-// 10. The strict non-equality assertion tests for strict inequality, as
-// determined by !==.  assert.notStrictEqual(actual, expected, message_opt);
+  if (signType === scriptTypes.P2WPKH) {
+    signScript = btemplates.pubKeyHash.output.encode(btemplates.witnessPubKeyHash.output.decode(signScript))
+  }
 
-assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
-  if (actual === expected) {
-    fail(actual, expected, message, '!==', assert.notStrictEqual);
+  if (p2sh) {
+    input.redeemScript = redeemScript
+    input.redeemScriptType = p2shType
   }
-};
 
-function expectedException(actual, expected) {
-  if (!actual || !expected) {
-    return false;
+  if (p2wsh) {
+    input.witnessScript = witnessScript
+    input.witnessScriptType = witnessType
   }
 
-  if (Object.prototype.toString.call(expected) == '[object RegExp]') {
-    return expected.test(actual);
-  } else if (actual instanceof expected) {
-    return true;
-  } else if (expected.call({}, actual) === true) {
-    return true;
+  input.pubKeys = expanded.pubKeys
+  input.signatures = expanded.signatures
+  input.signScript = signScript
+  input.signType = signType
+  input.prevOutScript = prevOutScript
+  input.prevOutType = prevOutType
+  input.witness = witness
+}
+
+function buildStack (type, signatures, pubKeys, allowIncomplete) {
+  if (type === scriptTypes.P2PKH) {
+    if (signatures.length === 1 && Buffer.isBuffer(signatures[0]) && pubKeys.length === 1) return btemplates.pubKeyHash.input.encodeStack(signatures[0], pubKeys[0])
+  } else if (type === scriptTypes.P2PK) {
+    if (signatures.length === 1 && Buffer.isBuffer(signatures[0])) return btemplates.pubKey.input.encodeStack(signatures[0])
+  } else if (type === scriptTypes.MULTISIG) {
+    if (signatures.length > 0) {
+      signatures = signatures.map(function (signature) {
+        return signature || ops.OP_0
+      })
+      if (!allowIncomplete) {
+        // remove blank signatures
+        signatures = signatures.filter(function (x) { return x !== ops.OP_0 })
+      }
+
+      return btemplates.multisig.input.encodeStack(signatures)
+    }
+  } else {
+    throw new Error('Not yet supported')
   }
 
-  return false;
+  if (!allowIncomplete) throw new Error('Not enough signatures provided')
+  return []
 }
 
-function _throws(shouldThrow, block, expected, message) {
-  var actual;
+function buildInput (input, allowIncomplete) {
+  var scriptType = input.prevOutType
+  var sig = []
+  var witness = []
 
-  if (util.isString(expected)) {
-    message = expected;
-    expected = null;
+  if (supportedType(scriptType)) {
+    sig = buildStack(scriptType, input.signatures, input.pubKeys, allowIncomplete)
   }
 
-  try {
-    block();
-  } catch (e) {
-    actual = e;
+  var p2sh = false
+  if (scriptType === btemplates.types.P2SH) {
+    // We can remove this error later when we have a guarantee prepareInput
+    // rejects unsignable scripts - it MUST be signable at this point.
+    if (!allowIncomplete && !supportedP2SHType(input.redeemScriptType)) {
+      throw new Error('Impossible to sign this type')
+    }
+
+    if (supportedType(input.redeemScriptType)) {
+      sig = buildStack(input.redeemScriptType, input.signatures, input.pubKeys, allowIncomplete)
+    }
+
+    // If it wasn't SIGNABLE, it's witness, defer to that
+    if (input.redeemScriptType) {
+      p2sh = true
+      scriptType = input.redeemScriptType
+    }
   }
 
-  message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
-            (message ? ' ' + message : '.');
+  switch (scriptType) {
+    // P2WPKH is a special case of P2PKH
+    case btemplates.types.P2WPKH:
+      witness = buildStack(btemplates.types.P2PKH, input.signatures, input.pubKeys, allowIncomplete)
+      break
 
-  if (shouldThrow && !actual) {
-    fail(actual, expected, 'Missing expected exception' + message);
+    case btemplates.types.P2WSH:
+      // We can remove this check later
+      if (!allowIncomplete && !supportedType(input.witnessScriptType)) {
+        throw new Error('Impossible to sign this type')
+      }
+
+      if (supportedType(input.witnessScriptType)) {
+        witness = buildStack(input.witnessScriptType, input.signatures, input.pubKeys, allowIncomplete)
+        witness.push(input.witnessScript)
+        scriptType = input.witnessScriptType
+      }
+
+      break
   }
 
-  if (!shouldThrow && expectedException(actual, expected)) {
-    fail(actual, expected, 'Got unwanted exception' + message);
+  // append redeemScript if necessary
+  if (p2sh) {
+    sig.push(input.redeemScript)
   }
 
-  if ((shouldThrow && actual && expected &&
-      !expectedException(actual, expected)) || (!shouldThrow && actual)) {
-    throw actual;
+  return {
+    type: scriptType,
+    script: bscript.compile(sig),
+    witness: witness
   }
 }
 
-// 11. Expected to throw an error:
-// assert.throws(block, Error_opt, message_opt);
+function TransactionBuilder (network, maximumFeeRate) {
+  this.prevTxMap = {}
+  this.network = network || networks.bitcoin
 
-assert.throws = function(block, /*optional*/error, /*optional*/message) {
-  _throws.apply(this, [true].concat(pSlice.call(arguments)));
-};
+  // WARNING: This is __NOT__ to be relied on, its just another potential safety mechanism (safety in-depth)
+  this.maximumFeeRate = maximumFeeRate || 1000
 
-// EXTENSION! This is annoying to write outside this module.
-assert.doesNotThrow = function(block, /*optional*/message) {
-  _throws.apply(this, [false].concat(pSlice.call(arguments)));
-};
+  this.inputs = []
+  this.tx = new Transaction()
+}
 
-assert.ifError = function(err) { if (err) {throw err;}};
+TransactionBuilder.prototype.setLockTime = function (locktime) {
+  typeforce(types.UInt32, locktime)
 
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) {
-    if (hasOwn.call(obj, key)) keys.push(key);
+  // if any signatures exist, throw
+  if (this.inputs.some(function (input) {
+    if (!input.signatures) return false
+
+    return input.signatures.some(function (s) { return s })
+  })) {
+    throw new Error('No, this would invalidate signatures')
   }
-  return keys;
-};
 
-},{"util/":29}],6:[function(require,module,exports){
+  this.tx.locktime = locktime
+}
 
-},{}],7:[function(require,module,exports){
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license  MIT
- */
+TransactionBuilder.prototype.setVersion = function (version) {
+  typeforce(types.UInt32, version)
 
-var base64 = require('base64-js')
-var ieee754 = require('ieee754')
-var isArray = require('is-array')
+  // XXX: this might eventually become more complex depending on what the versions represent
+  this.tx.version = version
+}
 
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-Buffer.poolSize = 8192 // not used by this implementation
+TransactionBuilder.fromTransaction = function (transaction, network) {
+  var txb = new TransactionBuilder(network)
 
-var rootParent = {}
+  // Copy transaction fields
+  txb.setVersion(transaction.version)
+  txb.setLockTime(transaction.locktime)
 
-/**
- * If `Buffer.TYPED_ARRAY_SUPPORT`:
- *   === true    Use Uint8Array implementation (fastest)
- *   === false   Use Object implementation (most compatible, even IE6)
- *
- * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
- * Opera 11.6+, iOS 4.2+.
- *
- * Due to various browser bugs, sometimes the Object implementation will be used even
- * when the browser supports typed arrays.
- *
- * Note:
- *
- *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
- *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
- *
- *   - Safari 5-7 lacks support for changing the `Object.prototype.constructor` property
- *     on objects.
- *
- *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
- *
- *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
- *     incorrect length in some situations.
+  // Copy outputs (done first to avoid signature invalidation)
+  transaction.outs.forEach(function (txOut) {
+    txb.addOutput(txOut.script, txOut.value)
+  })
 
- * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
- * get the Object implementation, which is slower but behaves correctly.
- */
-Buffer.TYPED_ARRAY_SUPPORT = (function () {
-  function Bar () {}
-  try {
-    var arr = new Uint8Array(1)
-    arr.foo = function () { return 42 }
-    arr.constructor = Bar
-    return arr.foo() === 42 && // typed array instances can be augmented
-        arr.constructor === Bar && // constructor can be set
-        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
-        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
-  } catch (e) {
-    return false
-  }
-})()
+  // Copy inputs
+  transaction.ins.forEach(function (txIn) {
+    txb.__addInputUnsafe(txIn.hash, txIn.index, {
+      sequence: txIn.sequence,
+      script: txIn.script,
+      witness: txIn.witness
+    })
+  })
+
+  // fix some things not possible through the public API
+  txb.inputs.forEach(function (input, i) {
+    fixMultisigOrder(input, transaction, i)
+  })
 
-function kMaxLength () {
-  return Buffer.TYPED_ARRAY_SUPPORT
-    ? 0x7fffffff
-    : 0x3fffffff
+  return txb
 }
 
-/**
- * Class: Buffer
- * =============
- *
- * The Buffer constructor returns instances of `Uint8Array` that are augmented
- * with function properties for all the node `Buffer` API functions. We use
- * `Uint8Array` so that square bracket notation works as expected -- it returns
- * a single octet.
- *
- * By augmenting the instances, we can avoid modifying the `Uint8Array`
- * prototype.
- */
-function Buffer (arg) {
-  if (!(this instanceof Buffer)) {
-    // Avoid going through an ArgumentsAdaptorTrampoline in the common case.
-    if (arguments.length > 1) return new Buffer(arg, arguments[1])
-    return new Buffer(arg)
+TransactionBuilder.prototype.addInput = function (txHash, vout, sequence, prevOutScript) {
+  if (!this.__canModifyInputs()) {
+    throw new Error('No, this would invalidate signatures')
   }
 
-  this.length = 0
-  this.parent = undefined
+  var value
 
-  // Common case.
-  if (typeof arg === 'number') {
-    return fromNumber(this, arg)
+  // is it a hex string?
+  if (typeof txHash === 'string') {
+    // transaction hashs's are displayed in reverse order, un-reverse it
+    txHash = Buffer.from(txHash, 'hex').reverse()
+
+  // is it a Transaction object?
+  } else if (txHash instanceof Transaction) {
+    var txOut = txHash.outs[vout]
+    prevOutScript = txOut.script
+    value = txOut.value
+
+    txHash = txHash.getHash()
   }
 
-  // Slightly less common case.
-  if (typeof arg === 'string') {
-    return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
+  return this.__addInputUnsafe(txHash, vout, {
+    sequence: sequence,
+    prevOutScript: prevOutScript,
+    value: value
+  })
+}
+
+TransactionBuilder.prototype.__addInputUnsafe = function (txHash, vout, options) {
+  if (Transaction.isCoinbaseHash(txHash)) {
+    throw new Error('coinbase inputs not supported')
   }
 
-  // Unusual.
-  return fromObject(this, arg)
-}
+  var prevTxOut = txHash.toString('hex') + ':' + vout
+  if (this.prevTxMap[prevTxOut] !== undefined) throw new Error('Duplicate TxOut: ' + prevTxOut)
 
-function fromNumber (that, length) {
-  that = allocate(that, length < 0 ? 0 : checked(length) | 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < length; i++) {
-      that[i] = 0
-    }
+  var input = {}
+
+  // derive what we can from the scriptSig
+  if (options.script !== undefined) {
+    input = expandInput(options.script, options.witness || [])
   }
-  return that
-}
 
-function fromString (that, string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
+  // if an input value was given, retain it
+  if (options.value !== undefined) {
+    input.value = options.value
+  }
 
-  // Assumption: byteLength() return value is always < kMaxLength.
-  var length = byteLength(string, encoding) | 0
-  that = allocate(that, length)
+  // derive what we can from the previous transactions output script
+  if (!input.prevOutScript && options.prevOutScript) {
+    var prevOutType
 
-  that.write(string, encoding)
-  return that
-}
+    if (!input.pubKeys && !input.signatures) {
+      var expanded = expandOutput(options.prevOutScript)
 
-function fromObject (that, object) {
-  if (Buffer.isBuffer(object)) return fromBuffer(that, object)
+      if (expanded.pubKeys) {
+        input.pubKeys = expanded.pubKeys
+        input.signatures = expanded.signatures
+      }
 
-  if (isArray(object)) return fromArray(that, object)
+      prevOutType = expanded.scriptType
+    }
 
-  if (object == null) {
-    throw new TypeError('must start with number, buffer, array or string')
+    input.prevOutScript = options.prevOutScript
+    input.prevOutType = prevOutType || btemplates.classifyOutput(options.prevOutScript)
   }
 
-  if (typeof ArrayBuffer !== 'undefined') {
-    if (object.buffer instanceof ArrayBuffer) {
-      return fromTypedArray(that, object)
-    }
-    if (object instanceof ArrayBuffer) {
-      return fromArrayBuffer(that, object)
-    }
+  var vin = this.tx.addInput(txHash, vout, options.sequence, options.scriptSig)
+  this.inputs[vin] = input
+  this.prevTxMap[prevTxOut] = vin
+  return vin
+}
+
+TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
+  if (!this.__canModifyOutputs()) {
+    throw new Error('No, this would invalidate signatures')
   }
 
-  if (object.length) return fromArrayLike(that, object)
+  // Attempt to get a script if it's a base58 address string
+  if (typeof scriptPubKey === 'string') {
+    scriptPubKey = baddress.toOutputScript(scriptPubKey, this.network)
+  }
 
-  return fromJsonObject(that, object)
+  return this.tx.addOutput(scriptPubKey, value)
 }
 
-function fromBuffer (that, buffer) {
-  var length = checked(buffer.length) | 0
-  that = allocate(that, length)
-  buffer.copy(that, 0, 0, length)
-  return that
+TransactionBuilder.prototype.build = function () {
+  return this.__build(false)
 }
-
-function fromArray (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
-  }
-  return that
+TransactionBuilder.prototype.buildIncomplete = function () {
+  return this.__build(true)
 }
 
-// Duplicate of fromArray() to keep fromArray() monomorphic.
-function fromTypedArray (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
-  // Truncating the elements is probably not what people expect from typed
-  // arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
-  // of the old Buffer constructor.
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
+TransactionBuilder.prototype.__build = function (allowIncomplete) {
+  if (!allowIncomplete) {
+    if (!this.tx.ins.length) throw new Error('Transaction has no inputs')
+    if (!this.tx.outs.length) throw new Error('Transaction has no outputs')
   }
-  return that
-}
 
-function fromArrayBuffer (that, array) {
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    array.byteLength
-    that = Buffer._augment(new Uint8Array(array))
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    that = fromTypedArray(that, new Uint8Array(array))
+  var tx = this.tx.clone()
+  // Create script signatures from inputs
+  this.inputs.forEach(function (input, i) {
+    var scriptType = input.witnessScriptType || input.redeemScriptType || input.prevOutType
+    if (!scriptType && !allowIncomplete) throw new Error('Transaction is not complete')
+    var result = buildInput(input, allowIncomplete)
+
+    // skip if no result
+    if (!allowIncomplete) {
+      if (!supportedType(result.type) && result.type !== btemplates.types.P2WPKH) {
+        throw new Error(result.type + ' not supported')
+      }
+    }
+
+    tx.setInputScript(i, result.script)
+    tx.setWitness(i, result.witness)
+  })
+
+  if (!allowIncomplete) {
+    // do not rely on this, its merely a last resort
+    if (this.__overMaximumFees(tx.virtualSize())) {
+      throw new Error('Transaction has absurd fees')
+    }
   }
-  return that
+
+  return tx
 }
 
-function fromArrayLike (that, array) {
-  var length = checked(array.length) | 0
-  that = allocate(that, length)
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
-  }
-  return that
+function canSign (input) {
+  return input.prevOutScript !== undefined &&
+    input.signScript !== undefined &&
+    input.pubKeys !== undefined &&
+    input.signatures !== undefined &&
+    input.signatures.length === input.pubKeys.length &&
+    input.pubKeys.length > 0 &&
+    (
+      input.witness === false ||
+      (input.witness === true && input.value !== undefined)
+    )
 }
 
-// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
-// Returns a zero-length buffer for inputs that don't conform to the spec.
-function fromJsonObject (that, object) {
-  var array
-  var length = 0
+TransactionBuilder.prototype.sign = function (vin, keyPair, redeemScript, hashType, witnessValue, witnessScript) {
+  // TODO: remove keyPair.network matching in 4.0.0
+  if (keyPair.network && keyPair.network !== this.network) throw new TypeError('Inconsistent network')
+  if (!this.inputs[vin]) throw new Error('No input at index: ' + vin)
+  hashType = hashType || Transaction.SIGHASH_ALL
+
+  var input = this.inputs[vin]
 
-  if (object.type === 'Buffer' && isArray(object.data)) {
-    array = object.data
-    length = checked(array.length) | 0
+  // if redeemScript was previously provided, enforce consistency
+  if (input.redeemScript !== undefined &&
+      redeemScript &&
+      !input.redeemScript.equals(redeemScript)) {
+    throw new Error('Inconsistent redeemScript')
   }
-  that = allocate(that, length)
 
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
+  var kpPubKey = keyPair.publicKey || keyPair.getPublicKeyBuffer()
+  if (!canSign(input)) {
+    if (witnessValue !== undefined) {
+      if (input.value !== undefined && input.value !== witnessValue) throw new Error('Input didn\'t match witnessValue')
+      typeforce(types.Satoshi, witnessValue)
+      input.value = witnessValue
+    }
+
+    if (!canSign(input)) prepareInput(input, kpPubKey, redeemScript, witnessValue, witnessScript)
+    if (!canSign(input)) throw Error(input.prevOutType + ' not supported')
   }
-  return that
-}
 
-function allocate (that, length) {
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    that = Buffer._augment(new Uint8Array(length))
+  // ready to sign
+  var signatureHash
+  if (input.witness) {
+    signatureHash = this.tx.hashForWitnessV0(vin, input.signScript, input.value, hashType)
   } else {
-    // Fallback: Return an object instance of the Buffer class
-    that.length = length
-    that._isBuffer = true
+    signatureHash = this.tx.hashForSignature(vin, input.signScript, hashType)
   }
 
-  var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
-  if (fromPool) that.parent = rootParent
+  // enforce in order signing of public keys
+  var signed = input.pubKeys.some(function (pubKey, i) {
+    if (!kpPubKey.equals(pubKey)) return false
+    if (input.signatures[i]) throw new Error('Signature already exists')
+    if (kpPubKey.length !== 33 &&
+      input.signType === scriptTypes.P2WPKH) throw new Error('BIP143 rejects uncompressed public keys in P2WPKH or P2WSH')
+
+    var signature = keyPair.sign(signatureHash)
+    if (Buffer.isBuffer(signature)) signature = ECSignature.fromRSBuffer(signature)
 
-  return that
+    input.signatures[i] = signature.toScriptSignature(hashType)
+    return true
+  })
+
+  if (!signed) throw new Error('Key pair cannot sign for this input')
 }
 
-function checked (length) {
-  // Note: cannot use `length < kMaxLength` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= kMaxLength()) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
-  }
-  return length | 0
+function signatureHashType (buffer) {
+  return buffer.readUInt8(buffer.length - 1)
 }
 
-function SlowBuffer (subject, encoding) {
-  if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
+TransactionBuilder.prototype.__canModifyInputs = function () {
+  return this.inputs.every(function (input) {
+    // any signatures?
+    if (input.signatures === undefined) return true
 
-  var buf = new Buffer(subject, encoding)
-  delete buf.parent
-  return buf
-}
+    return input.signatures.every(function (signature) {
+      if (!signature) return true
+      var hashType = signatureHashType(signature)
 
-Buffer.isBuffer = function isBuffer (b) {
-  return !!(b != null && b._isBuffer)
+      // if SIGHASH_ANYONECANPAY is set, signatures would not
+      // be invalidated by more inputs
+      return hashType & Transaction.SIGHASH_ANYONECANPAY
+    })
+  })
 }
 
-Buffer.compare = function compare (a, b) {
-  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
-    throw new TypeError('Arguments must be Buffers')
-  }
+TransactionBuilder.prototype.__canModifyOutputs = function () {
+  var nInputs = this.tx.ins.length
+  var nOutputs = this.tx.outs.length
 
-  if (a === b) return 0
+  return this.inputs.every(function (input) {
+    if (input.signatures === undefined) return true
 
-  var x = a.length
-  var y = b.length
+    return input.signatures.every(function (signature) {
+      if (!signature) return true
+      var hashType = signatureHashType(signature)
 
-  var i = 0
-  var len = Math.min(x, y)
-  while (i < len) {
-    if (a[i] !== b[i]) break
+      var hashTypeMod = hashType & 0x1f
+      if (hashTypeMod === Transaction.SIGHASH_NONE) return true
+      if (hashTypeMod === Transaction.SIGHASH_SINGLE) {
+        // if SIGHASH_SINGLE is set, and nInputs > nOutputs
+        // some signatures would be invalidated by the addition
+        // of more outputs
+        return nInputs <= nOutputs
+      }
+    })
+  })
+}
 
-    ++i
-  }
+TransactionBuilder.prototype.__overMaximumFees = function (bytes) {
+  // not all inputs will have .value defined
+  var incoming = this.inputs.reduce(function (a, x) { return a + (x.value >>> 0) }, 0)
 
-  if (i !== len) {
-    x = a[i]
-    y = b[i]
-  }
+  // but all outputs do, and if we have any input value
+  // we can immediately determine if the outputs are too small
+  var outgoing = this.tx.outs.reduce(function (a, x) { return a + x.value }, 0)
+  var fee = incoming - outgoing
+  var feeRate = fee / bytes
 
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
+  return feeRate > this.maximumFeeRate
 }
 
-Buffer.isEncoding = function isEncoding (encoding) {
-  switch (String(encoding).toLowerCase()) {
-    case 'hex':
-    case 'utf8':
-    case 'utf-8':
-    case 'ascii':
-    case 'binary':
-    case 'base64':
-    case 'raw':
-    case 'ucs2':
-    case 'ucs-2':
-    case 'utf16le':
-    case 'utf-16le':
-      return true
-    default:
-      return false
-  }
-}
+module.exports = TransactionBuilder
 
-Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
+},{"./address":44,"./crypto":47,"./ecpair":49,"./ecsignature":50,"./networks":53,"./script":54,"./templates":56,"./transaction":78,"./types":80,"bitcoin-ops":42,"safe-buffer":128,"typeforce":139}],80:[function(require,module,exports){
+var typeforce = require('typeforce')
 
-  if (list.length === 0) {
-    return new Buffer(0)
-  }
+var UINT31_MAX = Math.pow(2, 31) - 1
+function UInt31 (value) {
+  return typeforce.UInt32(value) && value <= UINT31_MAX
+}
 
-  var i
-  if (length === undefined) {
-    length = 0
-    for (i = 0; i < list.length; i++) {
-      length += list[i].length
-    }
-  }
+function BIP32Path (value) {
+  return typeforce.String(value) && value.match(/^(m\/)?(\d+'?\/)*\d+'?$/)
+}
+BIP32Path.toJSON = function () { return 'BIP32 derivation path' }
 
-  var buf = new Buffer(length)
-  var pos = 0
-  for (i = 0; i < list.length; i++) {
-    var item = list[i]
-    item.copy(buf, pos)
-    pos += item.length
-  }
-  return buf
+var SATOSHI_MAX = 21 * 1e14
+function Satoshi (value) {
+  return typeforce.UInt53(value) && value <= SATOSHI_MAX
 }
 
-function byteLength (string, encoding) {
-  if (typeof string !== 'string') string = '' + string
+// external dependent types
+var BigInt = typeforce.quacksLike('BigInteger')
+var ECPoint = typeforce.quacksLike('Point')
 
-  var len = string.length
-  if (len === 0) return 0
+// exposed, external API
+var ECSignature = typeforce.compile({ r: BigInt, s: BigInt })
+var Network = typeforce.compile({
+  messagePrefix: typeforce.oneOf(typeforce.Buffer, typeforce.String),
+  bip32: {
+    public: typeforce.UInt32,
+    private: typeforce.UInt32
+  },
+  pubKeyHash: typeforce.UInt8,
+  scriptHash: typeforce.UInt8,
+  wif: typeforce.UInt8
+})
 
-  // Use a for loop to avoid recursion
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'ascii':
-      case 'binary':
-      // Deprecated
-      case 'raw':
-      case 'raws':
-        return len
-      case 'utf8':
-      case 'utf-8':
-        return utf8ToBytes(string).length
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return len * 2
-      case 'hex':
-        return len >>> 1
-      case 'base64':
-        return base64ToBytes(string).length
-      default:
-        if (loweredCase) return utf8ToBytes(string).length // assume utf8
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
+// extend typeforce types with ours
+var types = {
+  BigInt: BigInt,
+  BIP32Path: BIP32Path,
+  Buffer256bit: typeforce.BufferN(32),
+  ECPoint: ECPoint,
+  ECSignature: ECSignature,
+  Hash160bit: typeforce.BufferN(20),
+  Hash256bit: typeforce.BufferN(32),
+  Network: Network,
+  Satoshi: Satoshi,
+  UInt31: UInt31
 }
-Buffer.byteLength = byteLength
 
-// pre-set for values that may exist in the future
-Buffer.prototype.length = undefined
-Buffer.prototype.parent = undefined
+for (var typeName in typeforce) {
+  types[typeName] = typeforce[typeName]
+}
 
-function slowToString (encoding, start, end) {
-  var loweredCase = false
+module.exports = types
 
-  start = start | 0
-  end = end === undefined || end === Infinity ? this.length : end | 0
+},{"typeforce":139}],81:[function(require,module,exports){
+(function (module, exports) {
+  'use strict';
 
-  if (!encoding) encoding = 'utf8'
-  if (start < 0) start = 0
-  if (end > this.length) end = this.length
-  if (end <= start) return ''
+  // Utils
+  function assert (val, msg) {
+    if (!val) throw new Error(msg || 'Assertion failed');
+  }
 
-  while (true) {
-    switch (encoding) {
-      case 'hex':
-        return hexSlice(this, start, end)
+  // Could use `inherits` module, but don't want to move from single file
+  // architecture yet.
+  function inherits (ctor, superCtor) {
+    ctor.super_ = superCtor;
+    var TempCtor = function () {};
+    TempCtor.prototype = superCtor.prototype;
+    ctor.prototype = new TempCtor();
+    ctor.prototype.constructor = ctor;
+  }
 
-      case 'utf8':
-      case 'utf-8':
-        return utf8Slice(this, start, end)
+  // BN
 
-      case 'ascii':
-        return asciiSlice(this, start, end)
+  function BN (number, base, endian) {
+    if (BN.isBN(number)) {
+      return number;
+    }
 
-      case 'binary':
-        return binarySlice(this, start, end)
+    this.negative = 0;
+    this.words = null;
+    this.length = 0;
 
-      case 'base64':
-        return base64Slice(this, start, end)
+    // Reduction context
+    this.red = null;
 
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return utf16leSlice(this, start, end)
+    if (number !== null) {
+      if (base === 'le' || base === 'be') {
+        endian = base;
+        base = 10;
+      }
 
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = (encoding + '').toLowerCase()
-        loweredCase = true
+      this._init(number || 0, base || 10, endian || 'be');
     }
   }
-}
-
-Buffer.prototype.toString = function toString () {
-  var length = this.length | 0
-  if (length === 0) return ''
-  if (arguments.length === 0) return utf8Slice(this, 0, length)
-  return slowToString.apply(this, arguments)
-}
+  if (typeof module === 'object') {
+    module.exports = BN;
+  } else {
+    exports.BN = BN;
+  }
 
-Buffer.prototype.equals = function equals (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return true
-  return Buffer.compare(this, b) === 0
-}
+  BN.BN = BN;
+  BN.wordSize = 26;
 
-Buffer.prototype.inspect = function inspect () {
-  var str = ''
-  var max = exports.INSPECT_MAX_BYTES
-  if (this.length > 0) {
-    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
-    if (this.length > max) str += ' ... '
+  var Buffer;
+  try {
+    Buffer = require('buf' + 'fer').Buffer;
+  } catch (e) {
   }
-  return '<Buffer ' + str + '>'
-}
 
-Buffer.prototype.compare = function compare (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return 0
-  return Buffer.compare(this, b)
-}
+  BN.isBN = function isBN (num) {
+    if (num instanceof BN) {
+      return true;
+    }
 
-Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
-  if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
-  else if (byteOffset < -0x80000000) byteOffset = -0x80000000
-  byteOffset >>= 0
+    return num !== null && typeof num === 'object' &&
+      num.constructor.wordSize === BN.wordSize && Array.isArray(num.words);
+  };
 
-  if (this.length === 0) return -1
-  if (byteOffset >= this.length) return -1
+  BN.max = function max (left, right) {
+    if (left.cmp(right) > 0) return left;
+    return right;
+  };
 
-  // Negative offsets start from the end of the buffer
-  if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+  BN.min = function min (left, right) {
+    if (left.cmp(right) < 0) return left;
+    return right;
+  };
 
-  if (typeof val === 'string') {
-    if (val.length === 0) return -1 // special case: looking for empty string always fails
-    return String.prototype.indexOf.call(this, val, byteOffset)
-  }
-  if (Buffer.isBuffer(val)) {
-    return arrayIndexOf(this, val, byteOffset)
-  }
-  if (typeof val === 'number') {
-    if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
-      return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
+  BN.prototype._init = function init (number, base, endian) {
+    if (typeof number === 'number') {
+      return this._initNumber(number, base, endian);
     }
-    return arrayIndexOf(this, [ val ], byteOffset)
-  }
 
-  function arrayIndexOf (arr, val, byteOffset) {
-    var foundIndex = -1
-    for (var i = 0; byteOffset + i < arr.length; i++) {
-      if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
-        if (foundIndex === -1) foundIndex = i
-        if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
-      } else {
-        foundIndex = -1
-      }
+    if (typeof number === 'object') {
+      return this._initArray(number, base, endian);
     }
-    return -1
-  }
 
-  throw new TypeError('val must be string, number or Buffer')
-}
+    if (base === 'hex') {
+      base = 16;
+    }
+    assert(base === (base | 0) && base >= 2 && base <= 36);
 
-// `get` is deprecated
-Buffer.prototype.get = function get (offset) {
-  console.log('.get() is deprecated. Access using array indexes instead.')
-  return this.readUInt8(offset)
-}
+    number = number.toString().replace(/\s+/g, '');
+    var start = 0;
+    if (number[0] === '-') {
+      start++;
+    }
 
-// `set` is deprecated
-Buffer.prototype.set = function set (v, offset) {
-  console.log('.set() is deprecated. Access using array indexes instead.')
-  return this.writeUInt8(v, offset)
-}
+    if (base === 16) {
+      this._parseHex(number, start);
+    } else {
+      this._parseBase(number, base, start);
+    }
 
-function hexWrite (buf, string, offset, length) {
-  offset = Number(offset) || 0
-  var remaining = buf.length - offset
-  if (!length) {
-    length = remaining
-  } else {
-    length = Number(length)
-    if (length > remaining) {
-      length = remaining
+    if (number[0] === '-') {
+      this.negative = 1;
     }
-  }
 
-  // must be an even number of digits
-  var strLen = string.length
-  if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+    this.strip();
 
-  if (length > strLen / 2) {
-    length = strLen / 2
-  }
-  for (var i = 0; i < length; i++) {
-    var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (isNaN(parsed)) throw new Error('Invalid hex string')
-    buf[offset + i] = parsed
-  }
-  return i
-}
+    if (endian !== 'le') return;
 
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
+    this._initArray(this.toArray(), base, endian);
+  };
 
-function asciiWrite (buf, string, offset, length) {
-  return blitBuffer(asciiToBytes(string), buf, offset, length)
-}
+  BN.prototype._initNumber = function _initNumber (number, base, endian) {
+    if (number < 0) {
+      this.negative = 1;
+      number = -number;
+    }
+    if (number < 0x4000000) {
+      this.words = [ number & 0x3ffffff ];
+      this.length = 1;
+    } else if (number < 0x10000000000000) {
+      this.words = [
+        number & 0x3ffffff,
+        (number / 0x4000000) & 0x3ffffff
+      ];
+      this.length = 2;
+    } else {
+      assert(number < 0x20000000000000); // 2 ^ 53 (unsafe)
+      this.words = [
+        number & 0x3ffffff,
+        (number / 0x4000000) & 0x3ffffff,
+        1
+      ];
+      this.length = 3;
+    }
 
-function binaryWrite (buf, string, offset, length) {
-  return asciiWrite(buf, string, offset, length)
-}
+    if (endian !== 'le') return;
 
-function base64Write (buf, string, offset, length) {
-  return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
+    // Reverse the bytes
+    this._initArray(this.toArray(), base, endian);
+  };
 
-function ucs2Write (buf, string, offset, length) {
-  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
-}
+  BN.prototype._initArray = function _initArray (number, base, endian) {
+    // Perhaps a Uint8Array
+    assert(typeof number.length === 'number');
+    if (number.length <= 0) {
+      this.words = [ 0 ];
+      this.length = 1;
+      return this;
+    }
 
-Buffer.prototype.write = function write (string, offset, length, encoding) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    encoding = 'utf8'
-    length = this.length
-    offset = 0
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    encoding = offset
-    length = this.length
-    offset = 0
-  // Buffer#write(string, offset[, length][, encoding])
-  } else if (isFinite(offset)) {
-    offset = offset | 0
-    if (isFinite(length)) {
-      length = length | 0
-      if (encoding === undefined) encoding = 'utf8'
-    } else {
-      encoding = length
-      length = undefined
+    this.length = Math.ceil(number.length / 3);
+    this.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      this.words[i] = 0;
     }
-  // legacy write(string, encoding, offset, length) - remove in v0.13
-  } else {
-    var swap = encoding
-    encoding = offset
-    offset = length | 0
-    length = swap
-  }
 
-  var remaining = this.length - offset
-  if (length === undefined || length > remaining) length = remaining
+    var j, w;
+    var off = 0;
+    if (endian === 'be') {
+      for (i = number.length - 1, j = 0; i >= 0; i -= 3) {
+        w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16);
+        this.words[j] |= (w << off) & 0x3ffffff;
+        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
+        off += 24;
+        if (off >= 26) {
+          off -= 26;
+          j++;
+        }
+      }
+    } else if (endian === 'le') {
+      for (i = 0, j = 0; i < number.length; i += 3) {
+        w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16);
+        this.words[j] |= (w << off) & 0x3ffffff;
+        this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff;
+        off += 24;
+        if (off >= 26) {
+          off -= 26;
+          j++;
+        }
+      }
+    }
+    return this.strip();
+  };
 
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('attempt to write outside buffer bounds')
-  }
+  function parseHex (str, start, end) {
+    var r = 0;
+    var len = Math.min(str.length, end);
+    for (var i = start; i < len; i++) {
+      var c = str.charCodeAt(i) - 48;
 
-  if (!encoding) encoding = 'utf8'
+      r <<= 4;
 
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'hex':
-        return hexWrite(this, string, offset, length)
+      // 'a' - 'f'
+      if (c >= 49 && c <= 54) {
+        r |= c - 49 + 0xa;
 
-      case 'utf8':
-      case 'utf-8':
-        return utf8Write(this, string, offset, length)
+      // 'A' - 'F'
+      } else if (c >= 17 && c <= 22) {
+        r |= c - 17 + 0xa;
 
-      case 'ascii':
-        return asciiWrite(this, string, offset, length)
+      // '0' - '9'
+      } else {
+        r |= c & 0xf;
+      }
+    }
+    return r;
+  }
 
-      case 'binary':
-        return binaryWrite(this, string, offset, length)
+  BN.prototype._parseHex = function _parseHex (number, start) {
+    // Create possibly bigger array to ensure that it fits the number
+    this.length = Math.ceil((number.length - start) / 6);
+    this.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      this.words[i] = 0;
+    }
 
-      case 'base64':
-        // Warning: maxLength not taken into account in base64Write
-        return base64Write(this, string, offset, length)
+    var j, w;
+    // Scan 24-bit chunks and add them to the number
+    var off = 0;
+    for (i = number.length - 6, j = 0; i >= start; i -= 6) {
+      w = parseHex(number, i, i + 6);
+      this.words[j] |= (w << off) & 0x3ffffff;
+      // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb
+      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
+      off += 24;
+      if (off >= 26) {
+        off -= 26;
+        j++;
+      }
+    }
+    if (i + 6 !== start) {
+      w = parseHex(number, start, i + 6);
+      this.words[j] |= (w << off) & 0x3ffffff;
+      this.words[j + 1] |= w >>> (26 - off) & 0x3fffff;
+    }
+    this.strip();
+  };
 
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return ucs2Write(this, string, offset, length)
+  function parseBase (str, start, end, mul) {
+    var r = 0;
+    var len = Math.min(str.length, end);
+    for (var i = start; i < len; i++) {
+      var c = str.charCodeAt(i) - 48;
 
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
+      r *= mul;
+
+      // 'a'
+      if (c >= 49) {
+        r += c - 49 + 0xa;
+
+      // 'A'
+      } else if (c >= 17) {
+        r += c - 17 + 0xa;
+
+      // '0' - '9'
+      } else {
+        r += c;
+      }
     }
+    return r;
   }
-}
 
-Buffer.prototype.toJSON = function toJSON () {
-  return {
-    type: 'Buffer',
-    data: Array.prototype.slice.call(this._arr || this, 0)
-  }
-}
+  BN.prototype._parseBase = function _parseBase (number, base, start) {
+    // Initialize as zero
+    this.words = [ 0 ];
+    this.length = 1;
 
-function base64Slice (buf, start, end) {
-  if (start === 0 && end === buf.length) {
-    return base64.fromByteArray(buf)
-  } else {
-    return base64.fromByteArray(buf.slice(start, end))
-  }
-}
+    // Find length of limb in base
+    for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) {
+      limbLen++;
+    }
+    limbLen--;
+    limbPow = (limbPow / base) | 0;
 
-function utf8Slice (buf, start, end) {
-  end = Math.min(buf.length, end)
-  var firstByte
-  var secondByte
-  var thirdByte
-  var fourthByte
-  var bytesPerSequence
-  var tempCodePoint
-  var codePoint
-  var res = []
-  var i = start
+    var total = number.length - start;
+    var mod = total % limbLen;
+    var end = Math.min(total, total - mod) + start;
 
-  for (; i < end; i += bytesPerSequence) {
-    firstByte = buf[i]
-    codePoint = 0xFFFD
+    var word = 0;
+    for (var i = start; i < end; i += limbLen) {
+      word = parseBase(number, i, i + limbLen, base);
 
-    if (firstByte > 0xEF) {
-      bytesPerSequence = 4
-    } else if (firstByte > 0xDF) {
-      bytesPerSequence = 3
-    } else if (firstByte > 0xBF) {
-      bytesPerSequence = 2
-    } else {
-      bytesPerSequence = 1
+      this.imuln(limbPow);
+      if (this.words[0] + word < 0x4000000) {
+        this.words[0] += word;
+      } else {
+        this._iaddn(word);
+      }
     }
 
-    if (i + bytesPerSequence <= end) {
-      switch (bytesPerSequence) {
-        case 1:
-          if (firstByte < 0x80) {
-            codePoint = firstByte
-          }
-          break
-        case 2:
-          secondByte = buf[i + 1]
-          if ((secondByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
-            if (tempCodePoint > 0x7F) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 3:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
-            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 4:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          fourthByte = buf[i + 3]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
-            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
-              codePoint = tempCodePoint
-            }
-          }
+    if (mod !== 0) {
+      var pow = 1;
+      word = parseBase(number, i, number.length, base);
+
+      for (i = 0; i < mod; i++) {
+        pow *= base;
+      }
+
+      this.imuln(pow);
+      if (this.words[0] + word < 0x4000000) {
+        this.words[0] += word;
+      } else {
+        this._iaddn(word);
       }
     }
+  };
 
-    if (codePoint === 0xFFFD) {
-      // we generated an invalid codePoint so make sure to only advance by 1 byte
-      bytesPerSequence = 1
-    } else if (codePoint > 0xFFFF) {
-      // encode to utf16 (surrogate pair dance)
-      codePoint -= 0x10000
-      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
-      codePoint = 0xDC00 | codePoint & 0x3FF
+  BN.prototype.copy = function copy (dest) {
+    dest.words = new Array(this.length);
+    for (var i = 0; i < this.length; i++) {
+      dest.words[i] = this.words[i];
     }
+    dest.length = this.length;
+    dest.negative = this.negative;
+    dest.red = this.red;
+  };
 
-    res.push(codePoint)
-  }
+  BN.prototype.clone = function clone () {
+    var r = new BN(null);
+    this.copy(r);
+    return r;
+  };
 
-  return String.fromCharCode.apply(String, res)
-}
+  BN.prototype._expand = function _expand (size) {
+    while (this.length < size) {
+      this.words[this.length++] = 0;
+    }
+    return this;
+  };
 
-function asciiSlice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
+  // Remove leading `0` from `this`
+  BN.prototype.strip = function strip () {
+    while (this.length > 1 && this.words[this.length - 1] === 0) {
+      this.length--;
+    }
+    return this._normSign();
+  };
 
-  for (var i = start; i < end; i++) {
-    ret += String.fromCharCode(buf[i] & 0x7F)
-  }
-  return ret
-}
+  BN.prototype._normSign = function _normSign () {
+    // -0 = 0
+    if (this.length === 1 && this.words[0] === 0) {
+      this.negative = 0;
+    }
+    return this;
+  };
 
-function binarySlice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
+  BN.prototype.inspect = function inspect () {
+    return (this.red ? '<BN-R: ' : '<BN: ') + this.toString(16) + '>';
+  };
 
-  for (var i = start; i < end; i++) {
-    ret += String.fromCharCode(buf[i])
+  /*
+
+  var zeros = [];
+  var groupSizes = [];
+  var groupBases = [];
+
+  var s = '';
+  var i = -1;
+  while (++i < BN.wordSize) {
+    zeros[i] = s;
+    s += '0';
+  }
+  groupSizes[0] = 0;
+  groupSizes[1] = 0;
+  groupBases[0] = 0;
+  groupBases[1] = 0;
+  var base = 2 - 1;
+  while (++base < 36 + 1) {
+    var groupSize = 0;
+    var groupBase = 1;
+    while (groupBase < (1 << BN.wordSize) / base) {
+      groupBase *= base;
+      groupSize += 1;
+    }
+    groupSizes[base] = groupSize;
+    groupBases[base] = groupBase;
   }
-  return ret
-}
 
-function hexSlice (buf, start, end) {
-  var len = buf.length
+  */
 
-  if (!start || start < 0) start = 0
-  if (!end || end < 0 || end > len) end = len
+  var zeros = [
+    '',
+    '0',
+    '00',
+    '000',
+    '0000',
+    '00000',
+    '000000',
+    '0000000',
+    '00000000',
+    '000000000',
+    '0000000000',
+    '00000000000',
+    '000000000000',
+    '0000000000000',
+    '00000000000000',
+    '000000000000000',
+    '0000000000000000',
+    '00000000000000000',
+    '000000000000000000',
+    '0000000000000000000',
+    '00000000000000000000',
+    '000000000000000000000',
+    '0000000000000000000000',
+    '00000000000000000000000',
+    '000000000000000000000000',
+    '0000000000000000000000000'
+  ];
 
-  var out = ''
-  for (var i = start; i < end; i++) {
-    out += toHex(buf[i])
-  }
-  return out
-}
+  var groupSizes = [
+    0, 0,
+    25, 16, 12, 11, 10, 9, 8,
+    8, 7, 7, 7, 7, 6, 6,
+    6, 6, 6, 6, 6, 5, 5,
+    5, 5, 5, 5, 5, 5, 5,
+    5, 5, 5, 5, 5, 5, 5
+  ];
 
-function utf16leSlice (buf, start, end) {
-  var bytes = buf.slice(start, end)
-  var res = ''
-  for (var i = 0; i < bytes.length; i += 2) {
-    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
-  }
-  return res
-}
+  var groupBases = [
+    0, 0,
+    33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216,
+    43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625,
+    16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632,
+    6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149,
+    24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176
+  ];
 
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length
-  start = ~~start
-  end = end === undefined ? len : ~~end
+  BN.prototype.toString = function toString (base, padding) {
+    base = base || 10;
+    padding = padding | 0 || 1;
 
-  if (start < 0) {
-    start += len
-    if (start < 0) start = 0
-  } else if (start > len) {
-    start = len
-  }
+    var out;
+    if (base === 16 || base === 'hex') {
+      out = '';
+      var off = 0;
+      var carry = 0;
+      for (var i = 0; i < this.length; i++) {
+        var w = this.words[i];
+        var word = (((w << off) | carry) & 0xffffff).toString(16);
+        carry = (w >>> (24 - off)) & 0xffffff;
+        if (carry !== 0 || i !== this.length - 1) {
+          out = zeros[6 - word.length] + word + out;
+        } else {
+          out = word + out;
+        }
+        off += 2;
+        if (off >= 26) {
+          off -= 26;
+          i--;
+        }
+      }
+      if (carry !== 0) {
+        out = carry.toString(16) + out;
+      }
+      while (out.length % padding !== 0) {
+        out = '0' + out;
+      }
+      if (this.negative !== 0) {
+        out = '-' + out;
+      }
+      return out;
+    }
 
-  if (end < 0) {
-    end += len
-    if (end < 0) end = 0
-  } else if (end > len) {
-    end = len
-  }
+    if (base === (base | 0) && base >= 2 && base <= 36) {
+      // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base));
+      var groupSize = groupSizes[base];
+      // var groupBase = Math.pow(base, groupSize);
+      var groupBase = groupBases[base];
+      out = '';
+      var c = this.clone();
+      c.negative = 0;
+      while (!c.isZero()) {
+        var r = c.modn(groupBase).toString(base);
+        c = c.idivn(groupBase);
 
-  if (end < start) end = start
+        if (!c.isZero()) {
+          out = zeros[groupSize - r.length] + r + out;
+        } else {
+          out = r + out;
+        }
+      }
+      if (this.isZero()) {
+        out = '0' + out;
+      }
+      while (out.length % padding !== 0) {
+        out = '0' + out;
+      }
+      if (this.negative !== 0) {
+        out = '-' + out;
+      }
+      return out;
+    }
 
-  var newBuf
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = Buffer._augment(this.subarray(start, end))
-  } else {
-    var sliceLen = end - start
-    newBuf = new Buffer(sliceLen, undefined)
-    for (var i = 0; i < sliceLen; i++) {
-      newBuf[i] = this[i + start]
+    assert(false, 'Base should be between 2 and 36');
+  };
+
+  BN.prototype.toNumber = function toNumber () {
+    var ret = this.words[0];
+    if (this.length === 2) {
+      ret += this.words[1] * 0x4000000;
+    } else if (this.length === 3 && this.words[2] === 0x01) {
+      // NOTE: at this stage it is known that the top bit is set
+      ret += 0x10000000000000 + (this.words[1] * 0x4000000);
+    } else if (this.length > 2) {
+      assert(false, 'Number can only safely store up to 53 bits');
     }
-  }
+    return (this.negative !== 0) ? -ret : ret;
+  };
 
-  if (newBuf.length) newBuf.parent = this.parent || this
+  BN.prototype.toJSON = function toJSON () {
+    return this.toString(16);
+  };
 
-  return newBuf
-}
+  BN.prototype.toBuffer = function toBuffer (endian, length) {
+    assert(typeof Buffer !== 'undefined');
+    return this.toArrayLike(Buffer, endian, length);
+  };
 
-/*
- * Need to make sure that buffer isn't trying to write out of bounds.
- */
-function checkOffset (offset, ext, length) {
-  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
-  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
-}
+  BN.prototype.toArray = function toArray (endian, length) {
+    return this.toArrayLike(Array, endian, length);
+  };
 
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+  BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) {
+    var byteLength = this.byteLength();
+    var reqLength = length || Math.max(1, byteLength);
+    assert(byteLength <= reqLength, 'byte array longer than desired length');
+    assert(reqLength > 0, 'Requested array length <= 0');
 
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
+    this.strip();
+    var littleEndian = endian === 'le';
+    var res = new ArrayType(reqLength);
 
-  return val
-}
+    var b, i;
+    var q = this.clone();
+    if (!littleEndian) {
+      // Assume big-endian
+      for (i = 0; i < reqLength - byteLength; i++) {
+        res[i] = 0;
+      }
 
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) {
-    checkOffset(offset, byteLength, this.length)
-  }
+      for (i = 0; !q.isZero(); i++) {
+        b = q.andln(0xff);
+        q.iushrn(8);
 
-  var val = this[offset + --byteLength]
-  var mul = 1
-  while (byteLength > 0 && (mul *= 0x100)) {
-    val += this[offset + --byteLength] * mul
+        res[reqLength - i - 1] = b;
+      }
+    } else {
+      for (i = 0; !q.isZero(); i++) {
+        b = q.andln(0xff);
+        q.iushrn(8);
+
+        res[i] = b;
+      }
+
+      for (; i < reqLength; i++) {
+        res[i] = 0;
+      }
+    }
+
+    return res;
+  };
+
+  if (Math.clz32) {
+    BN.prototype._countBits = function _countBits (w) {
+      return 32 - Math.clz32(w);
+    };
+  } else {
+    BN.prototype._countBits = function _countBits (w) {
+      var t = w;
+      var r = 0;
+      if (t >= 0x1000) {
+        r += 13;
+        t >>>= 13;
+      }
+      if (t >= 0x40) {
+        r += 7;
+        t >>>= 7;
+      }
+      if (t >= 0x8) {
+        r += 4;
+        t >>>= 4;
+      }
+      if (t >= 0x02) {
+        r += 2;
+        t >>>= 2;
+      }
+      return r + t;
+    };
   }
 
-  return val
-}
+  BN.prototype._zeroBits = function _zeroBits (w) {
+    // Short-cut
+    if (w === 0) return 26;
 
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  return this[offset]
-}
+    var t = w;
+    var r = 0;
+    if ((t & 0x1fff) === 0) {
+      r += 13;
+      t >>>= 13;
+    }
+    if ((t & 0x7f) === 0) {
+      r += 7;
+      t >>>= 7;
+    }
+    if ((t & 0xf) === 0) {
+      r += 4;
+      t >>>= 4;
+    }
+    if ((t & 0x3) === 0) {
+      r += 2;
+      t >>>= 2;
+    }
+    if ((t & 0x1) === 0) {
+      r++;
+    }
+    return r;
+  };
 
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return this[offset] | (this[offset + 1] << 8)
-}
+  // Return number of used bits in a BN
+  BN.prototype.bitLength = function bitLength () {
+    var w = this.words[this.length - 1];
+    var hi = this._countBits(w);
+    return (this.length - 1) * 26 + hi;
+  };
 
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return (this[offset] << 8) | this[offset + 1]
-}
+  function toBitArray (num) {
+    var w = new Array(num.bitLength());
 
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
+    for (var bit = 0; bit < w.length; bit++) {
+      var off = (bit / 26) | 0;
+      var wbit = bit % 26;
 
-  return ((this[offset]) |
-      (this[offset + 1] << 8) |
-      (this[offset + 2] << 16)) +
-      (this[offset + 3] * 0x1000000)
-}
+      w[bit] = (num.words[off] & (1 << wbit)) >>> wbit;
+    }
 
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
+    return w;
+  }
 
-  return (this[offset] * 0x1000000) +
-    ((this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    this[offset + 3])
-}
+  // Number of trailing zero bits
+  BN.prototype.zeroBits = function zeroBits () {
+    if (this.isZero()) return 0;
 
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+    var r = 0;
+    for (var i = 0; i < this.length; i++) {
+      var b = this._zeroBits(this.words[i]);
+      r += b;
+      if (b !== 26) break;
+    }
+    return r;
+  };
 
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-  mul *= 0x80
+  BN.prototype.byteLength = function byteLength () {
+    return Math.ceil(this.bitLength() / 8);
+  };
 
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+  BN.prototype.toTwos = function toTwos (width) {
+    if (this.negative !== 0) {
+      return this.abs().inotn(width).iaddn(1);
+    }
+    return this.clone();
+  };
 
-  return val
-}
+  BN.prototype.fromTwos = function fromTwos (width) {
+    if (this.testn(width - 1)) {
+      return this.notn(width).iaddn(1).ineg();
+    }
+    return this.clone();
+  };
 
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
+  BN.prototype.isNeg = function isNeg () {
+    return this.negative !== 0;
+  };
 
-  var i = byteLength
-  var mul = 1
-  var val = this[offset + --i]
-  while (i > 0 && (mul *= 0x100)) {
-    val += this[offset + --i] * mul
-  }
-  mul *= 0x80
+  // Return negative clone of `this`
+  BN.prototype.neg = function neg () {
+    return this.clone().ineg();
+  };
 
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+  BN.prototype.ineg = function ineg () {
+    if (!this.isZero()) {
+      this.negative ^= 1;
+    }
 
-  return val
-}
+    return this;
+  };
 
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  if (!(this[offset] & 0x80)) return (this[offset])
-  return ((0xff - this[offset] + 1) * -1)
-}
+  // Or `num` with `this` in-place
+  BN.prototype.iuor = function iuor (num) {
+    while (this.length < num.length) {
+      this.words[this.length++] = 0;
+    }
 
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset] | (this[offset + 1] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
+    for (var i = 0; i < num.length; i++) {
+      this.words[i] = this.words[i] | num.words[i];
+    }
 
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset + 1] | (this[offset] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
+    return this.strip();
+  };
 
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
+  BN.prototype.ior = function ior (num) {
+    assert((this.negative | num.negative) === 0);
+    return this.iuor(num);
+  };
 
-  return (this[offset]) |
-    (this[offset + 1] << 8) |
-    (this[offset + 2] << 16) |
-    (this[offset + 3] << 24)
-}
+  // Or `num` with `this`
+  BN.prototype.or = function or (num) {
+    if (this.length > num.length) return this.clone().ior(num);
+    return num.clone().ior(this);
+  };
 
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
+  BN.prototype.uor = function uor (num) {
+    if (this.length > num.length) return this.clone().iuor(num);
+    return num.clone().iuor(this);
+  };
 
-  return (this[offset] << 24) |
-    (this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    (this[offset + 3])
-}
+  // And `num` with `this` in-place
+  BN.prototype.iuand = function iuand (num) {
+    // b = min-length(num, this)
+    var b;
+    if (this.length > num.length) {
+      b = num;
+    } else {
+      b = this;
+    }
 
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, true, 23, 4)
-}
+    for (var i = 0; i < b.length; i++) {
+      this.words[i] = this.words[i] & num.words[i];
+    }
 
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, false, 23, 4)
-}
+    this.length = b.length;
 
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, true, 52, 8)
-}
+    return this.strip();
+  };
 
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, false, 52, 8)
-}
+  BN.prototype.iand = function iand (num) {
+    assert((this.negative | num.negative) === 0);
+    return this.iuand(num);
+  };
 
-function checkInt (buf, value, offset, ext, max, min) {
-  if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
-  if (value > max || value < min) throw new RangeError('value is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('index out of range')
-}
+  // And `num` with `this`
+  BN.prototype.and = function and (num) {
+    if (this.length > num.length) return this.clone().iand(num);
+    return num.clone().iand(this);
+  };
 
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+  BN.prototype.uand = function uand (num) {
+    if (this.length > num.length) return this.clone().iuand(num);
+    return num.clone().iuand(this);
+  };
 
-  var mul = 1
-  var i = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
+  // Xor `num` with `this` in-place
+  BN.prototype.iuxor = function iuxor (num) {
+    // a.length > b.length
+    var a;
+    var b;
+    if (this.length > num.length) {
+      a = this;
+      b = num;
+    } else {
+      a = num;
+      b = this;
+    }
 
-  return offset + byteLength
-}
+    for (var i = 0; i < b.length; i++) {
+      this.words[i] = a.words[i] ^ b.words[i];
+    }
 
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+    if (this !== a) {
+      for (; i < a.length; i++) {
+        this.words[i] = a.words[i];
+      }
+    }
 
-  var i = byteLength - 1
-  var mul = 1
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
+    this.length = a.length;
 
-  return offset + byteLength
-}
+    return this.strip();
+  };
 
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
-  this[offset] = value
-  return offset + 1
-}
+  BN.prototype.ixor = function ixor (num) {
+    assert((this.negative | num.negative) === 0);
+    return this.iuxor(num);
+  };
 
-function objectWriteUInt16 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
-    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
-      (littleEndian ? i : 1 - i) * 8
-  }
-}
+  // Xor `num` with `this`
+  BN.prototype.xor = function xor (num) {
+    if (this.length > num.length) return this.clone().ixor(num);
+    return num.clone().ixor(this);
+  };
 
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
-  return offset + 2
-}
+  BN.prototype.uxor = function uxor (num) {
+    if (this.length > num.length) return this.clone().iuxor(num);
+    return num.clone().iuxor(this);
+  };
 
-Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = value
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
-  return offset + 2
-}
+  // Not ``this`` with ``width`` bitwidth
+  BN.prototype.inotn = function inotn (width) {
+    assert(typeof width === 'number' && width >= 0);
 
-function objectWriteUInt32 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffffffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
-    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
-  }
-}
+    var bytesNeeded = Math.ceil(width / 26) | 0;
+    var bitsLeft = width % 26;
 
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset + 3] = (value >>> 24)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 1] = (value >>> 8)
-    this[offset] = value
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
-  return offset + 4
-}
+    // Extend the buffer with leading zeroes
+    this._expand(bytesNeeded);
 
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = value
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
-  return offset + 4
-}
+    if (bitsLeft > 0) {
+      bytesNeeded--;
+    }
 
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
+    // Handle complete words
+    for (var i = 0; i < bytesNeeded; i++) {
+      this.words[i] = ~this.words[i] & 0x3ffffff;
+    }
 
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
+    // Handle the residue
+    if (bitsLeft > 0) {
+      this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft));
+    }
 
-  var i = 0
-  var mul = 1
-  var sub = value < 0 ? 1 : 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
+    // And remove leading zeroes
+    return this.strip();
+  };
 
-  return offset + byteLength
-}
+  BN.prototype.notn = function notn (width) {
+    return this.clone().inotn(width);
+  };
 
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
+  // Set `bit` of `this`
+  BN.prototype.setn = function setn (bit, val) {
+    assert(typeof bit === 'number' && bit >= 0);
 
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
+    var off = (bit / 26) | 0;
+    var wbit = bit % 26;
 
-  var i = byteLength - 1
-  var mul = 1
-  var sub = value < 0 ? 1 : 0
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
+    this._expand(off + 1);
 
-  return offset + byteLength
-}
+    if (val) {
+      this.words[off] = this.words[off] | (1 << wbit);
+    } else {
+      this.words[off] = this.words[off] & ~(1 << wbit);
+    }
 
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
-  if (value < 0) value = 0xff + value + 1
-  this[offset] = value
-  return offset + 1
-}
+    return this.strip();
+  };
 
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
-  return offset + 2
-}
+  // Add `num` to `this` in-place
+  BN.prototype.iadd = function iadd (num) {
+    var r;
 
-Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = value
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
-  return offset + 2
-}
+    // negative + positive
+    if (this.negative !== 0 && num.negative === 0) {
+      this.negative = 0;
+      r = this.isub(num);
+      this.negative ^= 1;
+      return this._normSign();
 
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = value
-    this[offset + 1] = (value >>> 8)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 3] = (value >>> 24)
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
-  return offset + 4
-}
+    // positive + negative
+    } else if (this.negative === 0 && num.negative !== 0) {
+      num.negative = 0;
+      r = this.isub(num);
+      num.negative = 1;
+      return r._normSign();
+    }
 
-Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (value < 0) value = 0xffffffff + value + 1
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = value
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
-  return offset + 4
-}
+    // a.length > b.length
+    var a, b;
+    if (this.length > num.length) {
+      a = this;
+      b = num;
+    } else {
+      a = num;
+      b = this;
+    }
 
-function checkIEEE754 (buf, value, offset, ext, max, min) {
-  if (value > max || value < min) throw new RangeError('value is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('index out of range')
-  if (offset < 0) throw new RangeError('index out of range')
-}
+    var carry = 0;
+    for (var i = 0; i < b.length; i++) {
+      r = (a.words[i] | 0) + (b.words[i] | 0) + carry;
+      this.words[i] = r & 0x3ffffff;
+      carry = r >>> 26;
+    }
+    for (; carry !== 0 && i < a.length; i++) {
+      r = (a.words[i] | 0) + carry;
+      this.words[i] = r & 0x3ffffff;
+      carry = r >>> 26;
+    }
 
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 23, 4)
-  return offset + 4
-}
+    this.length = a.length;
+    if (carry !== 0) {
+      this.words[this.length] = carry;
+      this.length++;
+    // Copy the rest of the words
+    } else if (a !== this) {
+      for (; i < a.length; i++) {
+        this.words[i] = a.words[i];
+      }
+    }
 
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, true, noAssert)
-}
+    return this;
+  };
 
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, false, noAssert)
-}
+  // Add `num` to `this`
+  BN.prototype.add = function add (num) {
+    var res;
+    if (num.negative !== 0 && this.negative === 0) {
+      num.negative = 0;
+      res = this.sub(num);
+      num.negative ^= 1;
+      return res;
+    } else if (num.negative === 0 && this.negative !== 0) {
+      this.negative = 0;
+      res = num.sub(this);
+      this.negative = 1;
+      return res;
+    }
 
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 52, 8)
-  return offset + 8
-}
+    if (this.length > num.length) return this.clone().iadd(num);
 
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, true, noAssert)
-}
+    return num.clone().iadd(this);
+  };
 
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, false, noAssert)
-}
+  // Subtract `num` from `this` in-place
+  BN.prototype.isub = function isub (num) {
+    // this - (-num) = this + num
+    if (num.negative !== 0) {
+      num.negative = 0;
+      var r = this.iadd(num);
+      num.negative = 1;
+      return r._normSign();
 
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!start) start = 0
-  if (!end && end !== 0) end = this.length
-  if (targetStart >= target.length) targetStart = target.length
-  if (!targetStart) targetStart = 0
-  if (end > 0 && end < start) end = start
+    // -this - num = -(this + num)
+    } else if (this.negative !== 0) {
+      this.negative = 0;
+      this.iadd(num);
+      this.negative = 1;
+      return this._normSign();
+    }
 
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
+    // At this point both numbers are positive
+    var cmp = this.cmp(num);
 
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
+    // Optimization - zeroify
+    if (cmp === 0) {
+      this.negative = 0;
+      this.length = 1;
+      this.words[0] = 0;
+      return this;
+    }
 
-  // Are we oob?
-  if (end > this.length) end = this.length
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start
-  }
+    // a > b
+    var a, b;
+    if (cmp > 0) {
+      a = this;
+      b = num;
+    } else {
+      a = num;
+      b = this;
+    }
 
-  var len = end - start
-  var i
+    var carry = 0;
+    for (var i = 0; i < b.length; i++) {
+      r = (a.words[i] | 0) - (b.words[i] | 0) + carry;
+      carry = r >> 26;
+      this.words[i] = r & 0x3ffffff;
+    }
+    for (; carry !== 0 && i < a.length; i++) {
+      r = (a.words[i] | 0) + carry;
+      carry = r >> 26;
+      this.words[i] = r & 0x3ffffff;
+    }
 
-  if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (i = len - 1; i >= 0; i--) {
-      target[i + targetStart] = this[i + start]
+    // Copy rest of the words
+    if (carry === 0 && i < a.length && a !== this) {
+      for (; i < a.length; i++) {
+        this.words[i] = a.words[i];
+      }
     }
-  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-    // ascending copy from start
-    for (i = 0; i < len; i++) {
-      target[i + targetStart] = this[i + start]
+
+    this.length = Math.max(this.length, i);
+
+    if (a !== this) {
+      this.negative = 1;
     }
-  } else {
-    target._set(this.subarray(start, start + len), targetStart)
-  }
 
-  return len
-}
+    return this.strip();
+  };
 
-// fill(value, start=0, end=buffer.length)
-Buffer.prototype.fill = function fill (value, start, end) {
-  if (!value) value = 0
-  if (!start) start = 0
-  if (!end) end = this.length
+  // Subtract `num` from `this`
+  BN.prototype.sub = function sub (num) {
+    return this.clone().isub(num);
+  };
 
-  if (end < start) throw new RangeError('end < start')
+  function smallMulTo (self, num, out) {
+    out.negative = num.negative ^ self.negative;
+    var len = (self.length + num.length) | 0;
+    out.length = len;
+    len = (len - 1) | 0;
 
-  // Fill 0 bytes; we're done
-  if (end === start) return
-  if (this.length === 0) return
+    // Peel one iteration (compiler can't do it, because of code complexity)
+    var a = self.words[0] | 0;
+    var b = num.words[0] | 0;
+    var r = a * b;
 
-  if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
-  if (end < 0 || end > this.length) throw new RangeError('end out of bounds')
+    var lo = r & 0x3ffffff;
+    var carry = (r / 0x4000000) | 0;
+    out.words[0] = lo;
 
-  var i
-  if (typeof value === 'number') {
-    for (i = start; i < end; i++) {
-      this[i] = value
+    for (var k = 1; k < len; k++) {
+      // Sum all words with the same `i + j = k` and accumulate `ncarry`,
+      // note that ncarry could be >= 0x3ffffff
+      var ncarry = carry >>> 26;
+      var rword = carry & 0x3ffffff;
+      var maxJ = Math.min(k, num.length - 1);
+      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
+        var i = (k - j) | 0;
+        a = self.words[i] | 0;
+        b = num.words[j] | 0;
+        r = a * b + rword;
+        ncarry += (r / 0x4000000) | 0;
+        rword = r & 0x3ffffff;
+      }
+      out.words[k] = rword | 0;
+      carry = ncarry | 0;
     }
-  } else {
-    var bytes = utf8ToBytes(value.toString())
-    var len = bytes.length
-    for (i = start; i < end; i++) {
-      this[i] = bytes[i % len]
+    if (carry !== 0) {
+      out.words[k] = carry | 0;
+    } else {
+      out.length--;
     }
+
+    return out.strip();
   }
 
-  return this
-}
+  // TODO(indutny): it may be reasonable to omit it for users who don't need
+  // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit
+  // multiplication (like elliptic secp256k1).
+  var comb10MulTo = function comb10MulTo (self, num, out) {
+    var a = self.words;
+    var b = num.words;
+    var o = out.words;
+    var c = 0;
+    var lo;
+    var mid;
+    var hi;
+    var a0 = a[0] | 0;
+    var al0 = a0 & 0x1fff;
+    var ah0 = a0 >>> 13;
+    var a1 = a[1] | 0;
+    var al1 = a1 & 0x1fff;
+    var ah1 = a1 >>> 13;
+    var a2 = a[2] | 0;
+    var al2 = a2 & 0x1fff;
+    var ah2 = a2 >>> 13;
+    var a3 = a[3] | 0;
+    var al3 = a3 & 0x1fff;
+    var ah3 = a3 >>> 13;
+    var a4 = a[4] | 0;
+    var al4 = a4 & 0x1fff;
+    var ah4 = a4 >>> 13;
+    var a5 = a[5] | 0;
+    var al5 = a5 & 0x1fff;
+    var ah5 = a5 >>> 13;
+    var a6 = a[6] | 0;
+    var al6 = a6 & 0x1fff;
+    var ah6 = a6 >>> 13;
+    var a7 = a[7] | 0;
+    var al7 = a7 & 0x1fff;
+    var ah7 = a7 >>> 13;
+    var a8 = a[8] | 0;
+    var al8 = a8 & 0x1fff;
+    var ah8 = a8 >>> 13;
+    var a9 = a[9] | 0;
+    var al9 = a9 & 0x1fff;
+    var ah9 = a9 >>> 13;
+    var b0 = b[0] | 0;
+    var bl0 = b0 & 0x1fff;
+    var bh0 = b0 >>> 13;
+    var b1 = b[1] | 0;
+    var bl1 = b1 & 0x1fff;
+    var bh1 = b1 >>> 13;
+    var b2 = b[2] | 0;
+    var bl2 = b2 & 0x1fff;
+    var bh2 = b2 >>> 13;
+    var b3 = b[3] | 0;
+    var bl3 = b3 & 0x1fff;
+    var bh3 = b3 >>> 13;
+    var b4 = b[4] | 0;
+    var bl4 = b4 & 0x1fff;
+    var bh4 = b4 >>> 13;
+    var b5 = b[5] | 0;
+    var bl5 = b5 & 0x1fff;
+    var bh5 = b5 >>> 13;
+    var b6 = b[6] | 0;
+    var bl6 = b6 & 0x1fff;
+    var bh6 = b6 >>> 13;
+    var b7 = b[7] | 0;
+    var bl7 = b7 & 0x1fff;
+    var bh7 = b7 >>> 13;
+    var b8 = b[8] | 0;
+    var bl8 = b8 & 0x1fff;
+    var bh8 = b8 >>> 13;
+    var b9 = b[9] | 0;
+    var bl9 = b9 & 0x1fff;
+    var bh9 = b9 >>> 13;
 
-/**
- * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
- * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
- */
-Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
-  if (typeof Uint8Array !== 'undefined') {
-    if (Buffer.TYPED_ARRAY_SUPPORT) {
-      return (new Buffer(this)).buffer
-    } else {
-      var buf = new Uint8Array(this.length)
-      for (var i = 0, len = buf.length; i < len; i += 1) {
-        buf[i] = this[i]
-      }
-      return buf.buffer
+    out.negative = self.negative ^ num.negative;
+    out.length = 19;
+    /* k = 0 */
+    lo = Math.imul(al0, bl0);
+    mid = Math.imul(al0, bh0);
+    mid = (mid + Math.imul(ah0, bl0)) | 0;
+    hi = Math.imul(ah0, bh0);
+    var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0;
+    w0 &= 0x3ffffff;
+    /* k = 1 */
+    lo = Math.imul(al1, bl0);
+    mid = Math.imul(al1, bh0);
+    mid = (mid + Math.imul(ah1, bl0)) | 0;
+    hi = Math.imul(ah1, bh0);
+    lo = (lo + Math.imul(al0, bl1)) | 0;
+    mid = (mid + Math.imul(al0, bh1)) | 0;
+    mid = (mid + Math.imul(ah0, bl1)) | 0;
+    hi = (hi + Math.imul(ah0, bh1)) | 0;
+    var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0;
+    w1 &= 0x3ffffff;
+    /* k = 2 */
+    lo = Math.imul(al2, bl0);
+    mid = Math.imul(al2, bh0);
+    mid = (mid + Math.imul(ah2, bl0)) | 0;
+    hi = Math.imul(ah2, bh0);
+    lo = (lo + Math.imul(al1, bl1)) | 0;
+    mid = (mid + Math.imul(al1, bh1)) | 0;
+    mid = (mid + Math.imul(ah1, bl1)) | 0;
+    hi = (hi + Math.imul(ah1, bh1)) | 0;
+    lo = (lo + Math.imul(al0, bl2)) | 0;
+    mid = (mid + Math.imul(al0, bh2)) | 0;
+    mid = (mid + Math.imul(ah0, bl2)) | 0;
+    hi = (hi + Math.imul(ah0, bh2)) | 0;
+    var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0;
+    w2 &= 0x3ffffff;
+    /* k = 3 */
+    lo = Math.imul(al3, bl0);
+    mid = Math.imul(al3, bh0);
+    mid = (mid + Math.imul(ah3, bl0)) | 0;
+    hi = Math.imul(ah3, bh0);
+    lo = (lo + Math.imul(al2, bl1)) | 0;
+    mid = (mid + Math.imul(al2, bh1)) | 0;
+    mid = (mid + Math.imul(ah2, bl1)) | 0;
+    hi = (hi + Math.imul(ah2, bh1)) | 0;
+    lo = (lo + Math.imul(al1, bl2)) | 0;
+    mid = (mid + Math.imul(al1, bh2)) | 0;
+    mid = (mid + Math.imul(ah1, bl2)) | 0;
+    hi = (hi + Math.imul(ah1, bh2)) | 0;
+    lo = (lo + Math.imul(al0, bl3)) | 0;
+    mid = (mid + Math.imul(al0, bh3)) | 0;
+    mid = (mid + Math.imul(ah0, bl3)) | 0;
+    hi = (hi + Math.imul(ah0, bh3)) | 0;
+    var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0;
+    w3 &= 0x3ffffff;
+    /* k = 4 */
+    lo = Math.imul(al4, bl0);
+    mid = Math.imul(al4, bh0);
+    mid = (mid + Math.imul(ah4, bl0)) | 0;
+    hi = Math.imul(ah4, bh0);
+    lo = (lo + Math.imul(al3, bl1)) | 0;
+    mid = (mid + Math.imul(al3, bh1)) | 0;
+    mid = (mid + Math.imul(ah3, bl1)) | 0;
+    hi = (hi + Math.imul(ah3, bh1)) | 0;
+    lo = (lo + Math.imul(al2, bl2)) | 0;
+    mid = (mid + Math.imul(al2, bh2)) | 0;
+    mid = (mid + Math.imul(ah2, bl2)) | 0;
+    hi = (hi + Math.imul(ah2, bh2)) | 0;
+    lo = (lo + Math.imul(al1, bl3)) | 0;
+    mid = (mid + Math.imul(al1, bh3)) | 0;
+    mid = (mid + Math.imul(ah1, bl3)) | 0;
+    hi = (hi + Math.imul(ah1, bh3)) | 0;
+    lo = (lo + Math.imul(al0, bl4)) | 0;
+    mid = (mid + Math.imul(al0, bh4)) | 0;
+    mid = (mid + Math.imul(ah0, bl4)) | 0;
+    hi = (hi + Math.imul(ah0, bh4)) | 0;
+    var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0;
+    w4 &= 0x3ffffff;
+    /* k = 5 */
+    lo = Math.imul(al5, bl0);
+    mid = Math.imul(al5, bh0);
+    mid = (mid + Math.imul(ah5, bl0)) | 0;
+    hi = Math.imul(ah5, bh0);
+    lo = (lo + Math.imul(al4, bl1)) | 0;
+    mid = (mid + Math.imul(al4, bh1)) | 0;
+    mid = (mid + Math.imul(ah4, bl1)) | 0;
+    hi = (hi + Math.imul(ah4, bh1)) | 0;
+    lo = (lo + Math.imul(al3, bl2)) | 0;
+    mid = (mid + Math.imul(al3, bh2)) | 0;
+    mid = (mid + Math.imul(ah3, bl2)) | 0;
+    hi = (hi + Math.imul(ah3, bh2)) | 0;
+    lo = (lo + Math.imul(al2, bl3)) | 0;
+    mid = (mid + Math.imul(al2, bh3)) | 0;
+    mid = (mid + Math.imul(ah2, bl3)) | 0;
+    hi = (hi + Math.imul(ah2, bh3)) | 0;
+    lo = (lo + Math.imul(al1, bl4)) | 0;
+    mid = (mid + Math.imul(al1, bh4)) | 0;
+    mid = (mid + Math.imul(ah1, bl4)) | 0;
+    hi = (hi + Math.imul(ah1, bh4)) | 0;
+    lo = (lo + Math.imul(al0, bl5)) | 0;
+    mid = (mid + Math.imul(al0, bh5)) | 0;
+    mid = (mid + Math.imul(ah0, bl5)) | 0;
+    hi = (hi + Math.imul(ah0, bh5)) | 0;
+    var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0;
+    w5 &= 0x3ffffff;
+    /* k = 6 */
+    lo = Math.imul(al6, bl0);
+    mid = Math.imul(al6, bh0);
+    mid = (mid + Math.imul(ah6, bl0)) | 0;
+    hi = Math.imul(ah6, bh0);
+    lo = (lo + Math.imul(al5, bl1)) | 0;
+    mid = (mid + Math.imul(al5, bh1)) | 0;
+    mid = (mid + Math.imul(ah5, bl1)) | 0;
+    hi = (hi + Math.imul(ah5, bh1)) | 0;
+    lo = (lo + Math.imul(al4, bl2)) | 0;
+    mid = (mid + Math.imul(al4, bh2)) | 0;
+    mid = (mid + Math.imul(ah4, bl2)) | 0;
+    hi = (hi + Math.imul(ah4, bh2)) | 0;
+    lo = (lo + Math.imul(al3, bl3)) | 0;
+    mid = (mid + Math.imul(al3, bh3)) | 0;
+    mid = (mid + Math.imul(ah3, bl3)) | 0;
+    hi = (hi + Math.imul(ah3, bh3)) | 0;
+    lo = (lo + Math.imul(al2, bl4)) | 0;
+    mid = (mid + Math.imul(al2, bh4)) | 0;
+    mid = (mid + Math.imul(ah2, bl4)) | 0;
+    hi = (hi + Math.imul(ah2, bh4)) | 0;
+    lo = (lo + Math.imul(al1, bl5)) | 0;
+    mid = (mid + Math.imul(al1, bh5)) | 0;
+    mid = (mid + Math.imul(ah1, bl5)) | 0;
+    hi = (hi + Math.imul(ah1, bh5)) | 0;
+    lo = (lo + Math.imul(al0, bl6)) | 0;
+    mid = (mid + Math.imul(al0, bh6)) | 0;
+    mid = (mid + Math.imul(ah0, bl6)) | 0;
+    hi = (hi + Math.imul(ah0, bh6)) | 0;
+    var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0;
+    w6 &= 0x3ffffff;
+    /* k = 7 */
+    lo = Math.imul(al7, bl0);
+    mid = Math.imul(al7, bh0);
+    mid = (mid + Math.imul(ah7, bl0)) | 0;
+    hi = Math.imul(ah7, bh0);
+    lo = (lo + Math.imul(al6, bl1)) | 0;
+    mid = (mid + Math.imul(al6, bh1)) | 0;
+    mid = (mid + Math.imul(ah6, bl1)) | 0;
+    hi = (hi + Math.imul(ah6, bh1)) | 0;
+    lo = (lo + Math.imul(al5, bl2)) | 0;
+    mid = (mid + Math.imul(al5, bh2)) | 0;
+    mid = (mid + Math.imul(ah5, bl2)) | 0;
+    hi = (hi + Math.imul(ah5, bh2)) | 0;
+    lo = (lo + Math.imul(al4, bl3)) | 0;
+    mid = (mid + Math.imul(al4, bh3)) | 0;
+    mid = (mid + Math.imul(ah4, bl3)) | 0;
+    hi = (hi + Math.imul(ah4, bh3)) | 0;
+    lo = (lo + Math.imul(al3, bl4)) | 0;
+    mid = (mid + Math.imul(al3, bh4)) | 0;
+    mid = (mid + Math.imul(ah3, bl4)) | 0;
+    hi = (hi + Math.imul(ah3, bh4)) | 0;
+    lo = (lo + Math.imul(al2, bl5)) | 0;
+    mid = (mid + Math.imul(al2, bh5)) | 0;
+    mid = (mid + Math.imul(ah2, bl5)) | 0;
+    hi = (hi + Math.imul(ah2, bh5)) | 0;
+    lo = (lo + Math.imul(al1, bl6)) | 0;
+    mid = (mid + Math.imul(al1, bh6)) | 0;
+    mid = (mid + Math.imul(ah1, bl6)) | 0;
+    hi = (hi + Math.imul(ah1, bh6)) | 0;
+    lo = (lo + Math.imul(al0, bl7)) | 0;
+    mid = (mid + Math.imul(al0, bh7)) | 0;
+    mid = (mid + Math.imul(ah0, bl7)) | 0;
+    hi = (hi + Math.imul(ah0, bh7)) | 0;
+    var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0;
+    w7 &= 0x3ffffff;
+    /* k = 8 */
+    lo = Math.imul(al8, bl0);
+    mid = Math.imul(al8, bh0);
+    mid = (mid + Math.imul(ah8, bl0)) | 0;
+    hi = Math.imul(ah8, bh0);
+    lo = (lo + Math.imul(al7, bl1)) | 0;
+    mid = (mid + Math.imul(al7, bh1)) | 0;
+    mid = (mid + Math.imul(ah7, bl1)) | 0;
+    hi = (hi + Math.imul(ah7, bh1)) | 0;
+    lo = (lo + Math.imul(al6, bl2)) | 0;
+    mid = (mid + Math.imul(al6, bh2)) | 0;
+    mid = (mid + Math.imul(ah6, bl2)) | 0;
+    hi = (hi + Math.imul(ah6, bh2)) | 0;
+    lo = (lo + Math.imul(al5, bl3)) | 0;
+    mid = (mid + Math.imul(al5, bh3)) | 0;
+    mid = (mid + Math.imul(ah5, bl3)) | 0;
+    hi = (hi + Math.imul(ah5, bh3)) | 0;
+    lo = (lo + Math.imul(al4, bl4)) | 0;
+    mid = (mid + Math.imul(al4, bh4)) | 0;
+    mid = (mid + Math.imul(ah4, bl4)) | 0;
+    hi = (hi + Math.imul(ah4, bh4)) | 0;
+    lo = (lo + Math.imul(al3, bl5)) | 0;
+    mid = (mid + Math.imul(al3, bh5)) | 0;
+    mid = (mid + Math.imul(ah3, bl5)) | 0;
+    hi = (hi + Math.imul(ah3, bh5)) | 0;
+    lo = (lo + Math.imul(al2, bl6)) | 0;
+    mid = (mid + Math.imul(al2, bh6)) | 0;
+    mid = (mid + Math.imul(ah2, bl6)) | 0;
+    hi = (hi + Math.imul(ah2, bh6)) | 0;
+    lo = (lo + Math.imul(al1, bl7)) | 0;
+    mid = (mid + Math.imul(al1, bh7)) | 0;
+    mid = (mid + Math.imul(ah1, bl7)) | 0;
+    hi = (hi + Math.imul(ah1, bh7)) | 0;
+    lo = (lo + Math.imul(al0, bl8)) | 0;
+    mid = (mid + Math.imul(al0, bh8)) | 0;
+    mid = (mid + Math.imul(ah0, bl8)) | 0;
+    hi = (hi + Math.imul(ah0, bh8)) | 0;
+    var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0;
+    w8 &= 0x3ffffff;
+    /* k = 9 */
+    lo = Math.imul(al9, bl0);
+    mid = Math.imul(al9, bh0);
+    mid = (mid + Math.imul(ah9, bl0)) | 0;
+    hi = Math.imul(ah9, bh0);
+    lo = (lo + Math.imul(al8, bl1)) | 0;
+    mid = (mid + Math.imul(al8, bh1)) | 0;
+    mid = (mid + Math.imul(ah8, bl1)) | 0;
+    hi = (hi + Math.imul(ah8, bh1)) | 0;
+    lo = (lo + Math.imul(al7, bl2)) | 0;
+    mid = (mid + Math.imul(al7, bh2)) | 0;
+    mid = (mid + Math.imul(ah7, bl2)) | 0;
+    hi = (hi + Math.imul(ah7, bh2)) | 0;
+    lo = (lo + Math.imul(al6, bl3)) | 0;
+    mid = (mid + Math.imul(al6, bh3)) | 0;
+    mid = (mid + Math.imul(ah6, bl3)) | 0;
+    hi = (hi + Math.imul(ah6, bh3)) | 0;
+    lo = (lo + Math.imul(al5, bl4)) | 0;
+    mid = (mid + Math.imul(al5, bh4)) | 0;
+    mid = (mid + Math.imul(ah5, bl4)) | 0;
+    hi = (hi + Math.imul(ah5, bh4)) | 0;
+    lo = (lo + Math.imul(al4, bl5)) | 0;
+    mid = (mid + Math.imul(al4, bh5)) | 0;
+    mid = (mid + Math.imul(ah4, bl5)) | 0;
+    hi = (hi + Math.imul(ah4, bh5)) | 0;
+    lo = (lo + Math.imul(al3, bl6)) | 0;
+    mid = (mid + Math.imul(al3, bh6)) | 0;
+    mid = (mid + Math.imul(ah3, bl6)) | 0;
+    hi = (hi + Math.imul(ah3, bh6)) | 0;
+    lo = (lo + Math.imul(al2, bl7)) | 0;
+    mid = (mid + Math.imul(al2, bh7)) | 0;
+    mid = (mid + Math.imul(ah2, bl7)) | 0;
+    hi = (hi + Math.imul(ah2, bh7)) | 0;
+    lo = (lo + Math.imul(al1, bl8)) | 0;
+    mid = (mid + Math.imul(al1, bh8)) | 0;
+    mid = (mid + Math.imul(ah1, bl8)) | 0;
+    hi = (hi + Math.imul(ah1, bh8)) | 0;
+    lo = (lo + Math.imul(al0, bl9)) | 0;
+    mid = (mid + Math.imul(al0, bh9)) | 0;
+    mid = (mid + Math.imul(ah0, bl9)) | 0;
+    hi = (hi + Math.imul(ah0, bh9)) | 0;
+    var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0;
+    w9 &= 0x3ffffff;
+    /* k = 10 */
+    lo = Math.imul(al9, bl1);
+    mid = Math.imul(al9, bh1);
+    mid = (mid + Math.imul(ah9, bl1)) | 0;
+    hi = Math.imul(ah9, bh1);
+    lo = (lo + Math.imul(al8, bl2)) | 0;
+    mid = (mid + Math.imul(al8, bh2)) | 0;
+    mid = (mid + Math.imul(ah8, bl2)) | 0;
+    hi = (hi + Math.imul(ah8, bh2)) | 0;
+    lo = (lo + Math.imul(al7, bl3)) | 0;
+    mid = (mid + Math.imul(al7, bh3)) | 0;
+    mid = (mid + Math.imul(ah7, bl3)) | 0;
+    hi = (hi + Math.imul(ah7, bh3)) | 0;
+    lo = (lo + Math.imul(al6, bl4)) | 0;
+    mid = (mid + Math.imul(al6, bh4)) | 0;
+    mid = (mid + Math.imul(ah6, bl4)) | 0;
+    hi = (hi + Math.imul(ah6, bh4)) | 0;
+    lo = (lo + Math.imul(al5, bl5)) | 0;
+    mid = (mid + Math.imul(al5, bh5)) | 0;
+    mid = (mid + Math.imul(ah5, bl5)) | 0;
+    hi = (hi + Math.imul(ah5, bh5)) | 0;
+    lo = (lo + Math.imul(al4, bl6)) | 0;
+    mid = (mid + Math.imul(al4, bh6)) | 0;
+    mid = (mid + Math.imul(ah4, bl6)) | 0;
+    hi = (hi + Math.imul(ah4, bh6)) | 0;
+    lo = (lo + Math.imul(al3, bl7)) | 0;
+    mid = (mid + Math.imul(al3, bh7)) | 0;
+    mid = (mid + Math.imul(ah3, bl7)) | 0;
+    hi = (hi + Math.imul(ah3, bh7)) | 0;
+    lo = (lo + Math.imul(al2, bl8)) | 0;
+    mid = (mid + Math.imul(al2, bh8)) | 0;
+    mid = (mid + Math.imul(ah2, bl8)) | 0;
+    hi = (hi + Math.imul(ah2, bh8)) | 0;
+    lo = (lo + Math.imul(al1, bl9)) | 0;
+    mid = (mid + Math.imul(al1, bh9)) | 0;
+    mid = (mid + Math.imul(ah1, bl9)) | 0;
+    hi = (hi + Math.imul(ah1, bh9)) | 0;
+    var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0;
+    w10 &= 0x3ffffff;
+    /* k = 11 */
+    lo = Math.imul(al9, bl2);
+    mid = Math.imul(al9, bh2);
+    mid = (mid + Math.imul(ah9, bl2)) | 0;
+    hi = Math.imul(ah9, bh2);
+    lo = (lo + Math.imul(al8, bl3)) | 0;
+    mid = (mid + Math.imul(al8, bh3)) | 0;
+    mid = (mid + Math.imul(ah8, bl3)) | 0;
+    hi = (hi + Math.imul(ah8, bh3)) | 0;
+    lo = (lo + Math.imul(al7, bl4)) | 0;
+    mid = (mid + Math.imul(al7, bh4)) | 0;
+    mid = (mid + Math.imul(ah7, bl4)) | 0;
+    hi = (hi + Math.imul(ah7, bh4)) | 0;
+    lo = (lo + Math.imul(al6, bl5)) | 0;
+    mid = (mid + Math.imul(al6, bh5)) | 0;
+    mid = (mid + Math.imul(ah6, bl5)) | 0;
+    hi = (hi + Math.imul(ah6, bh5)) | 0;
+    lo = (lo + Math.imul(al5, bl6)) | 0;
+    mid = (mid + Math.imul(al5, bh6)) | 0;
+    mid = (mid + Math.imul(ah5, bl6)) | 0;
+    hi = (hi + Math.imul(ah5, bh6)) | 0;
+    lo = (lo + Math.imul(al4, bl7)) | 0;
+    mid = (mid + Math.imul(al4, bh7)) | 0;
+    mid = (mid + Math.imul(ah4, bl7)) | 0;
+    hi = (hi + Math.imul(ah4, bh7)) | 0;
+    lo = (lo + Math.imul(al3, bl8)) | 0;
+    mid = (mid + Math.imul(al3, bh8)) | 0;
+    mid = (mid + Math.imul(ah3, bl8)) | 0;
+    hi = (hi + Math.imul(ah3, bh8)) | 0;
+    lo = (lo + Math.imul(al2, bl9)) | 0;
+    mid = (mid + Math.imul(al2, bh9)) | 0;
+    mid = (mid + Math.imul(ah2, bl9)) | 0;
+    hi = (hi + Math.imul(ah2, bh9)) | 0;
+    var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0;
+    w11 &= 0x3ffffff;
+    /* k = 12 */
+    lo = Math.imul(al9, bl3);
+    mid = Math.imul(al9, bh3);
+    mid = (mid + Math.imul(ah9, bl3)) | 0;
+    hi = Math.imul(ah9, bh3);
+    lo = (lo + Math.imul(al8, bl4)) | 0;
+    mid = (mid + Math.imul(al8, bh4)) | 0;
+    mid = (mid + Math.imul(ah8, bl4)) | 0;
+    hi = (hi + Math.imul(ah8, bh4)) | 0;
+    lo = (lo + Math.imul(al7, bl5)) | 0;
+    mid = (mid + Math.imul(al7, bh5)) | 0;
+    mid = (mid + Math.imul(ah7, bl5)) | 0;
+    hi = (hi + Math.imul(ah7, bh5)) | 0;
+    lo = (lo + Math.imul(al6, bl6)) | 0;
+    mid = (mid + Math.imul(al6, bh6)) | 0;
+    mid = (mid + Math.imul(ah6, bl6)) | 0;
+    hi = (hi + Math.imul(ah6, bh6)) | 0;
+    lo = (lo + Math.imul(al5, bl7)) | 0;
+    mid = (mid + Math.imul(al5, bh7)) | 0;
+    mid = (mid + Math.imul(ah5, bl7)) | 0;
+    hi = (hi + Math.imul(ah5, bh7)) | 0;
+    lo = (lo + Math.imul(al4, bl8)) | 0;
+    mid = (mid + Math.imul(al4, bh8)) | 0;
+    mid = (mid + Math.imul(ah4, bl8)) | 0;
+    hi = (hi + Math.imul(ah4, bh8)) | 0;
+    lo = (lo + Math.imul(al3, bl9)) | 0;
+    mid = (mid + Math.imul(al3, bh9)) | 0;
+    mid = (mid + Math.imul(ah3, bl9)) | 0;
+    hi = (hi + Math.imul(ah3, bh9)) | 0;
+    var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0;
+    w12 &= 0x3ffffff;
+    /* k = 13 */
+    lo = Math.imul(al9, bl4);
+    mid = Math.imul(al9, bh4);
+    mid = (mid + Math.imul(ah9, bl4)) | 0;
+    hi = Math.imul(ah9, bh4);
+    lo = (lo + Math.imul(al8, bl5)) | 0;
+    mid = (mid + Math.imul(al8, bh5)) | 0;
+    mid = (mid + Math.imul(ah8, bl5)) | 0;
+    hi = (hi + Math.imul(ah8, bh5)) | 0;
+    lo = (lo + Math.imul(al7, bl6)) | 0;
+    mid = (mid + Math.imul(al7, bh6)) | 0;
+    mid = (mid + Math.imul(ah7, bl6)) | 0;
+    hi = (hi + Math.imul(ah7, bh6)) | 0;
+    lo = (lo + Math.imul(al6, bl7)) | 0;
+    mid = (mid + Math.imul(al6, bh7)) | 0;
+    mid = (mid + Math.imul(ah6, bl7)) | 0;
+    hi = (hi + Math.imul(ah6, bh7)) | 0;
+    lo = (lo + Math.imul(al5, bl8)) | 0;
+    mid = (mid + Math.imul(al5, bh8)) | 0;
+    mid = (mid + Math.imul(ah5, bl8)) | 0;
+    hi = (hi + Math.imul(ah5, bh8)) | 0;
+    lo = (lo + Math.imul(al4, bl9)) | 0;
+    mid = (mid + Math.imul(al4, bh9)) | 0;
+    mid = (mid + Math.imul(ah4, bl9)) | 0;
+    hi = (hi + Math.imul(ah4, bh9)) | 0;
+    var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0;
+    w13 &= 0x3ffffff;
+    /* k = 14 */
+    lo = Math.imul(al9, bl5);
+    mid = Math.imul(al9, bh5);
+    mid = (mid + Math.imul(ah9, bl5)) | 0;
+    hi = Math.imul(ah9, bh5);
+    lo = (lo + Math.imul(al8, bl6)) | 0;
+    mid = (mid + Math.imul(al8, bh6)) | 0;
+    mid = (mid + Math.imul(ah8, bl6)) | 0;
+    hi = (hi + Math.imul(ah8, bh6)) | 0;
+    lo = (lo + Math.imul(al7, bl7)) | 0;
+    mid = (mid + Math.imul(al7, bh7)) | 0;
+    mid = (mid + Math.imul(ah7, bl7)) | 0;
+    hi = (hi + Math.imul(ah7, bh7)) | 0;
+    lo = (lo + Math.imul(al6, bl8)) | 0;
+    mid = (mid + Math.imul(al6, bh8)) | 0;
+    mid = (mid + Math.imul(ah6, bl8)) | 0;
+    hi = (hi + Math.imul(ah6, bh8)) | 0;
+    lo = (lo + Math.imul(al5, bl9)) | 0;
+    mid = (mid + Math.imul(al5, bh9)) | 0;
+    mid = (mid + Math.imul(ah5, bl9)) | 0;
+    hi = (hi + Math.imul(ah5, bh9)) | 0;
+    var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0;
+    w14 &= 0x3ffffff;
+    /* k = 15 */
+    lo = Math.imul(al9, bl6);
+    mid = Math.imul(al9, bh6);
+    mid = (mid + Math.imul(ah9, bl6)) | 0;
+    hi = Math.imul(ah9, bh6);
+    lo = (lo + Math.imul(al8, bl7)) | 0;
+    mid = (mid + Math.imul(al8, bh7)) | 0;
+    mid = (mid + Math.imul(ah8, bl7)) | 0;
+    hi = (hi + Math.imul(ah8, bh7)) | 0;
+    lo = (lo + Math.imul(al7, bl8)) | 0;
+    mid = (mid + Math.imul(al7, bh8)) | 0;
+    mid = (mid + Math.imul(ah7, bl8)) | 0;
+    hi = (hi + Math.imul(ah7, bh8)) | 0;
+    lo = (lo + Math.imul(al6, bl9)) | 0;
+    mid = (mid + Math.imul(al6, bh9)) | 0;
+    mid = (mid + Math.imul(ah6, bl9)) | 0;
+    hi = (hi + Math.imul(ah6, bh9)) | 0;
+    var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0;
+    w15 &= 0x3ffffff;
+    /* k = 16 */
+    lo = Math.imul(al9, bl7);
+    mid = Math.imul(al9, bh7);
+    mid = (mid + Math.imul(ah9, bl7)) | 0;
+    hi = Math.imul(ah9, bh7);
+    lo = (lo + Math.imul(al8, bl8)) | 0;
+    mid = (mid + Math.imul(al8, bh8)) | 0;
+    mid = (mid + Math.imul(ah8, bl8)) | 0;
+    hi = (hi + Math.imul(ah8, bh8)) | 0;
+    lo = (lo + Math.imul(al7, bl9)) | 0;
+    mid = (mid + Math.imul(al7, bh9)) | 0;
+    mid = (mid + Math.imul(ah7, bl9)) | 0;
+    hi = (hi + Math.imul(ah7, bh9)) | 0;
+    var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0;
+    w16 &= 0x3ffffff;
+    /* k = 17 */
+    lo = Math.imul(al9, bl8);
+    mid = Math.imul(al9, bh8);
+    mid = (mid + Math.imul(ah9, bl8)) | 0;
+    hi = Math.imul(ah9, bh8);
+    lo = (lo + Math.imul(al8, bl9)) | 0;
+    mid = (mid + Math.imul(al8, bh9)) | 0;
+    mid = (mid + Math.imul(ah8, bl9)) | 0;
+    hi = (hi + Math.imul(ah8, bh9)) | 0;
+    var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0;
+    w17 &= 0x3ffffff;
+    /* k = 18 */
+    lo = Math.imul(al9, bl9);
+    mid = Math.imul(al9, bh9);
+    mid = (mid + Math.imul(ah9, bl9)) | 0;
+    hi = Math.imul(ah9, bh9);
+    var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0;
+    c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0;
+    w18 &= 0x3ffffff;
+    o[0] = w0;
+    o[1] = w1;
+    o[2] = w2;
+    o[3] = w3;
+    o[4] = w4;
+    o[5] = w5;
+    o[6] = w6;
+    o[7] = w7;
+    o[8] = w8;
+    o[9] = w9;
+    o[10] = w10;
+    o[11] = w11;
+    o[12] = w12;
+    o[13] = w13;
+    o[14] = w14;
+    o[15] = w15;
+    o[16] = w16;
+    o[17] = w17;
+    o[18] = w18;
+    if (c !== 0) {
+      o[19] = c;
+      out.length++;
     }
-  } else {
-    throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
-  }
-}
-
-// HELPER FUNCTIONS
-// ================
-
-var BP = Buffer.prototype
-
-/**
- * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
- */
-Buffer._augment = function _augment (arr) {
-  arr.constructor = Buffer
-  arr._isBuffer = true
-
-  // save reference to original Uint8Array set method before overwriting
-  arr._set = arr.set
-
-  // deprecated
-  arr.get = BP.get
-  arr.set = BP.set
-
-  arr.write = BP.write
-  arr.toString = BP.toString
-  arr.toLocaleString = BP.toString
-  arr.toJSON = BP.toJSON
-  arr.equals = BP.equals
-  arr.compare = BP.compare
-  arr.indexOf = BP.indexOf
-  arr.copy = BP.copy
-  arr.slice = BP.slice
-  arr.readUIntLE = BP.readUIntLE
-  arr.readUIntBE = BP.readUIntBE
-  arr.readUInt8 = BP.readUInt8
-  arr.readUInt16LE = BP.readUInt16LE
-  arr.readUInt16BE = BP.readUInt16BE
-  arr.readUInt32LE = BP.readUInt32LE
-  arr.readUInt32BE = BP.readUInt32BE
-  arr.readIntLE = BP.readIntLE
-  arr.readIntBE = BP.readIntBE
-  arr.readInt8 = BP.readInt8
-  arr.readInt16LE = BP.readInt16LE
-  arr.readInt16BE = BP.readInt16BE
-  arr.readInt32LE = BP.readInt32LE
-  arr.readInt32BE = BP.readInt32BE
-  arr.readFloatLE = BP.readFloatLE
-  arr.readFloatBE = BP.readFloatBE
-  arr.readDoubleLE = BP.readDoubleLE
-  arr.readDoubleBE = BP.readDoubleBE
-  arr.writeUInt8 = BP.writeUInt8
-  arr.writeUIntLE = BP.writeUIntLE
-  arr.writeUIntBE = BP.writeUIntBE
-  arr.writeUInt16LE = BP.writeUInt16LE
-  arr.writeUInt16BE = BP.writeUInt16BE
-  arr.writeUInt32LE = BP.writeUInt32LE
-  arr.writeUInt32BE = BP.writeUInt32BE
-  arr.writeIntLE = BP.writeIntLE
-  arr.writeIntBE = BP.writeIntBE
-  arr.writeInt8 = BP.writeInt8
-  arr.writeInt16LE = BP.writeInt16LE
-  arr.writeInt16BE = BP.writeInt16BE
-  arr.writeInt32LE = BP.writeInt32LE
-  arr.writeInt32BE = BP.writeInt32BE
-  arr.writeFloatLE = BP.writeFloatLE
-  arr.writeFloatBE = BP.writeFloatBE
-  arr.writeDoubleLE = BP.writeDoubleLE
-  arr.writeDoubleBE = BP.writeDoubleBE
-  arr.fill = BP.fill
-  arr.inspect = BP.inspect
-  arr.toArrayBuffer = BP.toArrayBuffer
-
-  return arr
-}
-
-var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
+    return out;
+  };
 
-function base64clean (str) {
-  // Node strips out invalid characters like \n and \t from the string, base64-js does not
-  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
-  // Node converts strings with length < 2 to ''
-  if (str.length < 2) return ''
-  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
-  while (str.length % 4 !== 0) {
-    str = str + '='
+  // Polyfill comb
+  if (!Math.imul) {
+    comb10MulTo = smallMulTo;
   }
-  return str
-}
-
-function stringtrim (str) {
-  if (str.trim) return str.trim()
-  return str.replace(/^\s+|\s+$/g, '')
-}
-
-function toHex (n) {
-  if (n < 16) return '0' + n.toString(16)
-  return n.toString(16)
-}
 
-function utf8ToBytes (string, units) {
-  units = units || Infinity
-  var codePoint
-  var length = string.length
-  var leadSurrogate = null
-  var bytes = []
-
-  for (var i = 0; i < length; i++) {
-    codePoint = string.charCodeAt(i)
-
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        }
+  function bigMulTo (self, num, out) {
+    out.negative = num.negative ^ self.negative;
+    out.length = self.length + num.length;
 
-        // valid lead
-        leadSurrogate = codePoint
+    var carry = 0;
+    var hncarry = 0;
+    for (var k = 0; k < out.length - 1; k++) {
+      // Sum all words with the same `i + j = k` and accumulate `ncarry`,
+      // note that ncarry could be >= 0x3ffffff
+      var ncarry = hncarry;
+      hncarry = 0;
+      var rword = carry & 0x3ffffff;
+      var maxJ = Math.min(k, num.length - 1);
+      for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) {
+        var i = k - j;
+        var a = self.words[i] | 0;
+        var b = num.words[j] | 0;
+        var r = a * b;
 
-        continue
-      }
+        var lo = r & 0x3ffffff;
+        ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0;
+        lo = (lo + rword) | 0;
+        rword = lo & 0x3ffffff;
+        ncarry = (ncarry + (lo >>> 26)) | 0;
 
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-        leadSurrogate = codePoint
-        continue
+        hncarry += ncarry >>> 26;
+        ncarry &= 0x3ffffff;
       }
-
-      // valid surrogate pair
-      codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
-
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+      out.words[k] = rword;
+      carry = ncarry;
+      ncarry = hncarry;
     }
-
-    leadSurrogate = null
-
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint)
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
+    if (carry !== 0) {
+      out.words[k] = carry;
     } else {
-      throw new Error('Invalid code point')
+      out.length--;
     }
-  }
-
-  return bytes
-}
-
-function asciiToBytes (str) {
-  var byteArray = []
-  for (var i = 0; i < str.length; i++) {
-    // Node's code seems to be doing this and not & 0x7F..
-    byteArray.push(str.charCodeAt(i) & 0xFF)
-  }
-  return byteArray
-}
-
-function utf16leToBytes (str, units) {
-  var c, hi, lo
-  var byteArray = []
-  for (var i = 0; i < str.length; i++) {
-    if ((units -= 2) < 0) break
 
-    c = str.charCodeAt(i)
-    hi = c >> 8
-    lo = c % 256
-    byteArray.push(lo)
-    byteArray.push(hi)
+    return out.strip();
   }
 
-  return byteArray
-}
-
-function base64ToBytes (str) {
-  return base64.toByteArray(base64clean(str))
-}
-
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; i++) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i]
+  function jumboMulTo (self, num, out) {
+    var fftm = new FFTM();
+    return fftm.mulp(self, num, out);
   }
-  return i
-}
-
-},{"base64-js":8,"ieee754":9,"is-array":10}],8:[function(require,module,exports){
-var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-;(function (exports) {
-       'use strict';
-
-  var Arr = (typeof Uint8Array !== 'undefined')
-    ? Uint8Array
-    : Array
-
-       var PLUS   = '+'.charCodeAt(0)
-       var SLASH  = '/'.charCodeAt(0)
-       var NUMBER = '0'.charCodeAt(0)
-       var LOWER  = 'a'.charCodeAt(0)
-       var UPPER  = 'A'.charCodeAt(0)
-       var PLUS_URL_SAFE = '-'.charCodeAt(0)
-       var SLASH_URL_SAFE = '_'.charCodeAt(0)
-
-       function decode (elt) {
-               var code = elt.charCodeAt(0)
-               if (code === PLUS ||
-                   code === PLUS_URL_SAFE)
-                       return 62 // '+'
-               if (code === SLASH ||
-                   code === SLASH_URL_SAFE)
-                       return 63 // '/'
-               if (code < NUMBER)
-                       return -1 //no match
-               if (code < NUMBER + 10)
-                       return code - NUMBER + 26 + 26
-               if (code < UPPER + 26)
-                       return code - UPPER
-               if (code < LOWER + 26)
-                       return code - LOWER + 26
-       }
-
-       function b64ToByteArray (b64) {
-               var i, j, l, tmp, placeHolders, arr
-
-               if (b64.length % 4 > 0) {
-                       throw new Error('Invalid string. Length must be a multiple of 4')
-               }
-
-               // the number of equal signs (place holders)
-               // if there are two placeholders, than the two characters before it
-               // represent one byte
-               // if there is only one, then the three characters before it represent 2 bytes
-               // this is just a cheap hack to not do indexOf twice
-               var len = b64.length
-               placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
-
-               // base64 is 4/3 + up to two characters of the original data
-               arr = new Arr(b64.length * 3 / 4 - placeHolders)
-
-               // if there are placeholders, only get up to the last complete 4 chars
-               l = placeHolders > 0 ? b64.length - 4 : b64.length
-
-               var L = 0
-
-               function push (v) {
-                       arr[L++] = v
-               }
-
-               for (i = 0, j = 0; i < l; i += 4, j += 3) {
-                       tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
-                       push((tmp & 0xFF0000) >> 16)
-                       push((tmp & 0xFF00) >> 8)
-                       push(tmp & 0xFF)
-               }
-
-               if (placeHolders === 2) {
-                       tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
-                       push(tmp & 0xFF)
-               } else if (placeHolders === 1) {
-                       tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
-                       push((tmp >> 8) & 0xFF)
-                       push(tmp & 0xFF)
-               }
-
-               return arr
-       }
-
-       function uint8ToBase64 (uint8) {
-               var i,
-                       extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
-                       output = "",
-                       temp, length
-
-               function encode (num) {
-                       return lookup.charAt(num)
-               }
-
-               function tripletToBase64 (num) {
-                       return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
-               }
-
-               // go through the array every three bytes, we'll deal with trailing stuff later
-               for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
-                       temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
-                       output += tripletToBase64(temp)
-               }
-
-               // pad the end with zeros, but make sure to not forget the extra bytes
-               switch (extraBytes) {
-                       case 1:
-                               temp = uint8[uint8.length - 1]
-                               output += encode(temp >> 2)
-                               output += encode((temp << 4) & 0x3F)
-                               output += '=='
-                               break
-                       case 2:
-                               temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
-                               output += encode(temp >> 10)
-                               output += encode((temp >> 4) & 0x3F)
-                               output += encode((temp << 2) & 0x3F)
-                               output += '='
-                               break
-               }
-
-               return output
-       }
-
-       exports.toByteArray = b64ToByteArray
-       exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
-
-},{}],9:[function(require,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
 
-  i += d
+  BN.prototype.mulTo = function mulTo (num, out) {
+    var res;
+    var len = this.length + num.length;
+    if (this.length === 10 && num.length === 10) {
+      res = comb10MulTo(this, num, out);
+    } else if (len < 63) {
+      res = smallMulTo(this, num, out);
+    } else if (len < 1024) {
+      res = bigMulTo(this, num, out);
+    } else {
+      res = jumboMulTo(this, num, out);
+    }
 
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+    return res;
+  };
 
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
+  // Cooley-Tukey algorithm for FFT
+  // slightly revisited to rely on looping instead of recursion
 
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
-  } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
+  function FFTM (x, y) {
+    this.x = x;
+    this.y = y;
   }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
-
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
-
-  value = Math.abs(value)
-
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
 
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
+  FFTM.prototype.makeRBT = function makeRBT (N) {
+    var t = new Array(N);
+    var l = BN.prototype._countBits(N) - 1;
+    for (var i = 0; i < N; i++) {
+      t[i] = this.revBin(i, l, N);
     }
-  }
 
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-
-  buffer[offset + i - d] |= s * 128
-}
+    return t;
+  };
 
-},{}],10:[function(require,module,exports){
+  // Returns binary-reversed representation of `x`
+  FFTM.prototype.revBin = function revBin (x, l, N) {
+    if (x === 0 || x === N - 1) return x;
 
-/**
- * isArray
- */
+    var rb = 0;
+    for (var i = 0; i < l; i++) {
+      rb |= (x & 1) << (l - i - 1);
+      x >>= 1;
+    }
 
-var isArray = Array.isArray;
+    return rb;
+  };
 
-/**
- * toString
- */
+  // Performs "tweedling" phase, therefore 'emulating'
+  // behaviour of the recursive algorithm
+  FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) {
+    for (var i = 0; i < N; i++) {
+      rtws[i] = rws[rbt[i]];
+      itws[i] = iws[rbt[i]];
+    }
+  };
 
-var str = Object.prototype.toString;
+  FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) {
+    this.permute(rbt, rws, iws, rtws, itws, N);
 
-/**
- * Whether or not the given `val`
- * is an array.
- *
- * example:
- *
- *        isArray([]);
- *        // > true
- *        isArray(arguments);
- *        // > false
- *        isArray('');
- *        // > false
- *
- * @param {mixed} val
- * @return {bool}
- */
+    for (var s = 1; s < N; s <<= 1) {
+      var l = s << 1;
 
-module.exports = isArray || function (val) {
-  return !! val && '[object Array]' == str.call(val);
-};
+      var rtwdf = Math.cos(2 * Math.PI / l);
+      var itwdf = Math.sin(2 * Math.PI / l);
 
-},{}],11:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+      for (var p = 0; p < N; p += l) {
+        var rtwdf_ = rtwdf;
+        var itwdf_ = itwdf;
 
-function EventEmitter() {
-  this._events = this._events || {};
-  this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
+        for (var j = 0; j < s; j++) {
+          var re = rtws[p + j];
+          var ie = itws[p + j];
 
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
+          var ro = rtws[p + j + s];
+          var io = itws[p + j + s];
 
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
+          var rx = rtwdf_ * ro - itwdf_ * io;
 
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-EventEmitter.defaultMaxListeners = 10;
+          io = rtwdf_ * io + itwdf_ * ro;
+          ro = rx;
 
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function(n) {
-  if (!isNumber(n) || n < 0 || isNaN(n))
-    throw TypeError('n must be a positive number');
-  this._maxListeners = n;
-  return this;
-};
+          rtws[p + j] = re + ro;
+          itws[p + j] = ie + io;
 
-EventEmitter.prototype.emit = function(type) {
-  var er, handler, len, args, i, listeners;
+          rtws[p + j + s] = re - ro;
+          itws[p + j + s] = ie - io;
 
-  if (!this._events)
-    this._events = {};
+          /* jshint maxdepth : false */
+          if (j !== l) {
+            rx = rtwdf * rtwdf_ - itwdf * itwdf_;
 
-  // If there is no 'error' event listener then throw.
-  if (type === 'error') {
-    if (!this._events.error ||
-        (isObject(this._events.error) && !this._events.error.length)) {
-      er = arguments[1];
-      if (er instanceof Error) {
-        throw er; // Unhandled 'error' event
+            itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_;
+            rtwdf_ = rx;
+          }
+        }
       }
-      throw TypeError('Uncaught, unspecified "error" event.');
     }
-  }
-
-  handler = this._events[type];
-
-  if (isUndefined(handler))
-    return false;
+  };
 
-  if (isFunction(handler)) {
-    switch (arguments.length) {
-      // fast cases
-      case 1:
-        handler.call(this);
-        break;
-      case 2:
-        handler.call(this, arguments[1]);
-        break;
-      case 3:
-        handler.call(this, arguments[1], arguments[2]);
-        break;
-      // slower
-      default:
-        len = arguments.length;
-        args = new Array(len - 1);
-        for (i = 1; i < len; i++)
-          args[i - 1] = arguments[i];
-        handler.apply(this, args);
+  FFTM.prototype.guessLen13b = function guessLen13b (n, m) {
+    var N = Math.max(m, n) | 1;
+    var odd = N & 1;
+    var i = 0;
+    for (N = N / 2 | 0; N; N = N >>> 1) {
+      i++;
     }
-  } else if (isObject(handler)) {
-    len = arguments.length;
-    args = new Array(len - 1);
-    for (i = 1; i < len; i++)
-      args[i - 1] = arguments[i];
 
-    listeners = handler.slice();
-    len = listeners.length;
-    for (i = 0; i < len; i++)
-      listeners[i].apply(this, args);
-  }
+    return 1 << i + 1 + odd;
+  };
 
-  return true;
-};
+  FFTM.prototype.conjugate = function conjugate (rws, iws, N) {
+    if (N <= 1) return;
 
-EventEmitter.prototype.addListener = function(type, listener) {
-  var m;
+    for (var i = 0; i < N / 2; i++) {
+      var t = rws[i];
 
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+      rws[i] = rws[N - i - 1];
+      rws[N - i - 1] = t;
 
-  if (!this._events)
-    this._events = {};
+      t = iws[i];
 
-  // To avoid recursion in the case that type === "newListener"! Before
-  // adding it to the listeners, first emit "newListener".
-  if (this._events.newListener)
-    this.emit('newListener', type,
-              isFunction(listener.listener) ?
-              listener.listener : listener);
+      iws[i] = -iws[N - i - 1];
+      iws[N - i - 1] = -t;
+    }
+  };
 
-  if (!this._events[type])
-    // Optimize the case of one listener. Don't need the extra array object.
-    this._events[type] = listener;
-  else if (isObject(this._events[type]))
-    // If we've already got an array, just append.
-    this._events[type].push(listener);
-  else
-    // Adding the second element, need to change to array.
-    this._events[type] = [this._events[type], listener];
+  FFTM.prototype.normalize13b = function normalize13b (ws, N) {
+    var carry = 0;
+    for (var i = 0; i < N / 2; i++) {
+      var w = Math.round(ws[2 * i + 1] / N) * 0x2000 +
+        Math.round(ws[2 * i] / N) +
+        carry;
 
-  // Check for listener leak
-  if (isObject(this._events[type]) && !this._events[type].warned) {
-    var m;
-    if (!isUndefined(this._maxListeners)) {
-      m = this._maxListeners;
-    } else {
-      m = EventEmitter.defaultMaxListeners;
-    }
+      ws[i] = w & 0x3ffffff;
 
-    if (m && m > 0 && this._events[type].length > m) {
-      this._events[type].warned = true;
-      console.error('(node) warning: possible EventEmitter memory ' +
-                    'leak detected. %d listeners added. ' +
-                    'Use emitter.setMaxListeners() to increase limit.',
-                    this._events[type].length);
-      if (typeof console.trace === 'function') {
-        // not supported in IE 10
-        console.trace();
+      if (w < 0x4000000) {
+        carry = 0;
+      } else {
+        carry = w / 0x4000000 | 0;
       }
     }
-  }
 
-  return this;
-};
+    return ws;
+  };
 
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+  FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) {
+    var carry = 0;
+    for (var i = 0; i < len; i++) {
+      carry = carry + (ws[i] | 0);
 
-EventEmitter.prototype.once = function(type, listener) {
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+      rws[2 * i] = carry & 0x1fff; carry = carry >>> 13;
+      rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13;
+    }
 
-  var fired = false;
+    // Pad with zeroes
+    for (i = 2 * len; i < N; ++i) {
+      rws[i] = 0;
+    }
 
-  function g() {
-    this.removeListener(type, g);
+    assert(carry === 0);
+    assert((carry & ~0x1fff) === 0);
+  };
 
-    if (!fired) {
-      fired = true;
-      listener.apply(this, arguments);
+  FFTM.prototype.stub = function stub (N) {
+    var ph = new Array(N);
+    for (var i = 0; i < N; i++) {
+      ph[i] = 0;
     }
-  }
 
-  g.listener = listener;
-  this.on(type, g);
+    return ph;
+  };
 
-  return this;
-};
+  FFTM.prototype.mulp = function mulp (x, y, out) {
+    var N = 2 * this.guessLen13b(x.length, y.length);
 
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
-  var list, position, length, i;
+    var rbt = this.makeRBT(N);
 
-  if (!isFunction(listener))
-    throw TypeError('listener must be a function');
+    var _ = this.stub(N);
 
-  if (!this._events || !this._events[type])
-    return this;
+    var rws = new Array(N);
+    var rwst = new Array(N);
+    var iwst = new Array(N);
 
-  list = this._events[type];
-  length = list.length;
-  position = -1;
+    var nrws = new Array(N);
+    var nrwst = new Array(N);
+    var niwst = new Array(N);
 
-  if (list === listener ||
-      (isFunction(list.listener) && list.listener === listener)) {
-    delete this._events[type];
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
+    var rmws = out.words;
+    rmws.length = N;
 
-  } else if (isObject(list)) {
-    for (i = length; i-- > 0;) {
-      if (list[i] === listener ||
-          (list[i].listener && list[i].listener === listener)) {
-        position = i;
-        break;
-      }
-    }
+    this.convert13b(x.words, x.length, rws, N);
+    this.convert13b(y.words, y.length, nrws, N);
 
-    if (position < 0)
-      return this;
+    this.transform(rws, _, rwst, iwst, N, rbt);
+    this.transform(nrws, _, nrwst, niwst, N, rbt);
 
-    if (list.length === 1) {
-      list.length = 0;
-      delete this._events[type];
-    } else {
-      list.splice(position, 1);
+    for (var i = 0; i < N; i++) {
+      var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i];
+      iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i];
+      rwst[i] = rx;
     }
 
-    if (this._events.removeListener)
-      this.emit('removeListener', type, listener);
-  }
+    this.conjugate(rwst, iwst, N);
+    this.transform(rwst, iwst, rmws, _, N, rbt);
+    this.conjugate(rmws, _, N);
+    this.normalize13b(rmws, N);
 
-  return this;
-};
+    out.negative = x.negative ^ y.negative;
+    out.length = x.length + y.length;
+    return out.strip();
+  };
 
-EventEmitter.prototype.removeAllListeners = function(type) {
-  var key, listeners;
+  // Multiply `this` by `num`
+  BN.prototype.mul = function mul (num) {
+    var out = new BN(null);
+    out.words = new Array(this.length + num.length);
+    return this.mulTo(num, out);
+  };
 
-  if (!this._events)
-    return this;
+  // Multiply employing FFT
+  BN.prototype.mulf = function mulf (num) {
+    var out = new BN(null);
+    out.words = new Array(this.length + num.length);
+    return jumboMulTo(this, num, out);
+  };
 
-  // not listening for removeListener, no need to emit
-  if (!this._events.removeListener) {
-    if (arguments.length === 0)
-      this._events = {};
-    else if (this._events[type])
-      delete this._events[type];
-    return this;
-  }
+  // In-place Multiplication
+  BN.prototype.imul = function imul (num) {
+    return this.clone().mulTo(num, this);
+  };
 
-  // emit removeListener for all listeners on all events
-  if (arguments.length === 0) {
-    for (key in this._events) {
-      if (key === 'removeListener') continue;
-      this.removeAllListeners(key);
-    }
-    this.removeAllListeners('removeListener');
-    this._events = {};
-    return this;
-  }
+  BN.prototype.imuln = function imuln (num) {
+    assert(typeof num === 'number');
+    assert(num < 0x4000000);
 
-  listeners = this._events[type];
+    // Carry
+    var carry = 0;
+    for (var i = 0; i < this.length; i++) {
+      var w = (this.words[i] | 0) * num;
+      var lo = (w & 0x3ffffff) + (carry & 0x3ffffff);
+      carry >>= 26;
+      carry += (w / 0x4000000) | 0;
+      // NOTE: lo is 27bit maximum
+      carry += lo >>> 26;
+      this.words[i] = lo & 0x3ffffff;
+    }
 
-  if (isFunction(listeners)) {
-    this.removeListener(type, listeners);
-  } else {
-    // LIFO order
-    while (listeners.length)
-      this.removeListener(type, listeners[listeners.length - 1]);
-  }
-  delete this._events[type];
+    if (carry !== 0) {
+      this.words[i] = carry;
+      this.length++;
+    }
 
-  return this;
-};
+    return this;
+  };
 
-EventEmitter.prototype.listeners = function(type) {
-  var ret;
-  if (!this._events || !this._events[type])
-    ret = [];
-  else if (isFunction(this._events[type]))
-    ret = [this._events[type]];
-  else
-    ret = this._events[type].slice();
-  return ret;
-};
+  BN.prototype.muln = function muln (num) {
+    return this.clone().imuln(num);
+  };
 
-EventEmitter.listenerCount = function(emitter, type) {
-  var ret;
-  if (!emitter._events || !emitter._events[type])
-    ret = 0;
-  else if (isFunction(emitter._events[type]))
-    ret = 1;
-  else
-    ret = emitter._events[type].length;
-  return ret;
-};
+  // `this` * `this`
+  BN.prototype.sqr = function sqr () {
+    return this.mul(this);
+  };
 
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
+  // `this` * `this` in-place
+  BN.prototype.isqr = function isqr () {
+    return this.imul(this.clone());
+  };
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
+  // Math.pow(`this`, `num`)
+  BN.prototype.pow = function pow (num) {
+    var w = toBitArray(num);
+    if (w.length === 0) return new BN(1);
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
+    // Skip leading zeroes
+    var res = this;
+    for (var i = 0; i < w.length; i++, res = res.sqr()) {
+      if (w[i] !== 0) break;
+    }
 
-function isUndefined(arg) {
-  return arg === void 0;
-}
+    if (++i < w.length) {
+      for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) {
+        if (w[i] === 0) continue;
 
-},{}],12:[function(require,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
+        res = res.mul(q);
       }
-    });
+    }
+
+    return res;
   };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
 
-},{}],13:[function(require,module,exports){
-module.exports = Array.isArray || function (arr) {
-  return Object.prototype.toString.call(arr) == '[object Array]';
-};
+  // Shift-left in-place
+  BN.prototype.iushln = function iushln (bits) {
+    assert(typeof bits === 'number' && bits >= 0);
+    var r = bits % 26;
+    var s = (bits - r) / 26;
+    var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r);
+    var i;
 
-},{}],14:[function(require,module,exports){
-// shim for using process in browser
+    if (r !== 0) {
+      var carry = 0;
 
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
+      for (i = 0; i < this.length; i++) {
+        var newCarry = this.words[i] & carryMask;
+        var c = ((this.words[i] | 0) - newCarry) << r;
+        this.words[i] = c | carry;
+        carry = newCarry >>> (26 - r);
+      }
 
-function cleanUpNextTick() {
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
+      if (carry) {
+        this.words[i] = carry;
+        this.length++;
+      }
     }
-}
 
-function drainQueue() {
-    if (draining) {
-        return;
+    if (s !== 0) {
+      for (i = this.length - 1; i >= 0; i--) {
+        this.words[i + s] = this.words[i];
+      }
+
+      for (i = 0; i < s; i++) {
+        this.words[i] = 0;
+      }
+
+      this.length += s;
     }
-    var timeout = setTimeout(cleanUpNextTick);
-    draining = true;
 
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            currentQueue[queueIndex].run();
-        }
-        queueIndex = -1;
-        len = queue.length;
+    return this.strip();
+  };
+
+  BN.prototype.ishln = function ishln (bits) {
+    // TODO(indutny): implement me
+    assert(this.negative === 0);
+    return this.iushln(bits);
+  };
+
+  // Shift-right in-place
+  // NOTE: `hint` is a lowest bit before trailing zeroes
+  // NOTE: if `extended` is present - it will be filled with destroyed bits
+  BN.prototype.iushrn = function iushrn (bits, hint, extended) {
+    assert(typeof bits === 'number' && bits >= 0);
+    var h;
+    if (hint) {
+      h = (hint - (hint % 26)) / 26;
+    } else {
+      h = 0;
     }
-    currentQueue = null;
-    draining = false;
-    clearTimeout(timeout);
-}
 
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
+    var r = bits % 26;
+    var s = Math.min((bits - r) / 26, this.length);
+    var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
+    var maskedWords = extended;
+
+    h -= s;
+    h = Math.max(0, h);
+
+    // Extended mode, copy masked part
+    if (maskedWords) {
+      for (var i = 0; i < s; i++) {
+        maskedWords.words[i] = this.words[i];
+      }
+      maskedWords.length = s;
     }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        setTimeout(drainQueue, 0);
+
+    if (s === 0) {
+      // No-op, we should not move anything at all
+    } else if (this.length > s) {
+      this.length -= s;
+      for (i = 0; i < this.length; i++) {
+        this.words[i] = this.words[i + s];
+      }
+    } else {
+      this.words[0] = 0;
+      this.length = 1;
     }
-};
 
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
+    var carry = 0;
+    for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) {
+      var word = this.words[i] | 0;
+      this.words[i] = (carry << (26 - r)) | (word >>> r);
+      carry = word & mask;
+    }
 
-function noop() {}
+    // Push carried bits as a mask
+    if (maskedWords && carry !== 0) {
+      maskedWords.words[maskedWords.length++] = carry;
+    }
 
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
+    if (this.length === 0) {
+      this.words[0] = 0;
+      this.length = 1;
+    }
 
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
+    return this.strip();
+  };
 
-// TODO(shtylman)
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
+  BN.prototype.ishrn = function ishrn (bits, hint, extended) {
+    // TODO(indutny): implement me
+    assert(this.negative === 0);
+    return this.iushrn(bits, hint, extended);
+  };
 
-},{}],15:[function(require,module,exports){
-module.exports = require("./lib/_stream_duplex.js")
+  // Shift-left
+  BN.prototype.shln = function shln (bits) {
+    return this.clone().ishln(bits);
+  };
 
-},{"./lib/_stream_duplex.js":16}],16:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  BN.prototype.ushln = function ushln (bits) {
+    return this.clone().iushln(bits);
+  };
 
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
+  // Shift-right
+  BN.prototype.shrn = function shrn (bits) {
+    return this.clone().ishrn(bits);
+  };
 
-module.exports = Duplex;
+  BN.prototype.ushrn = function ushrn (bits) {
+    return this.clone().iushrn(bits);
+  };
 
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) keys.push(key);
-  return keys;
-}
-/*</replacement>*/
+  // Test if n bit is set
+  BN.prototype.testn = function testn (bit) {
+    assert(typeof bit === 'number' && bit >= 0);
+    var r = bit % 26;
+    var s = (bit - r) / 26;
+    var q = 1 << r;
 
+    // Fast case: bit is much higher than all existing words
+    if (this.length <= s) return false;
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+    // Check bit and return
+    var w = this.words[s];
 
-var Readable = require('./_stream_readable');
-var Writable = require('./_stream_writable');
+    return !!(w & q);
+  };
 
-util.inherits(Duplex, Readable);
+  // Return only lowers bits of number (in-place)
+  BN.prototype.imaskn = function imaskn (bits) {
+    assert(typeof bits === 'number' && bits >= 0);
+    var r = bits % 26;
+    var s = (bits - r) / 26;
 
-forEach(objectKeys(Writable.prototype), function(method) {
-  if (!Duplex.prototype[method])
-    Duplex.prototype[method] = Writable.prototype[method];
-});
+    assert(this.negative === 0, 'imaskn works only with positive numbers');
 
-function Duplex(options) {
-  if (!(this instanceof Duplex))
-    return new Duplex(options);
+    if (this.length <= s) {
+      return this;
+    }
 
-  Readable.call(this, options);
-  Writable.call(this, options);
+    if (r !== 0) {
+      s++;
+    }
+    this.length = Math.min(s, this.length);
 
-  if (options && options.readable === false)
-    this.readable = false;
+    if (r !== 0) {
+      var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r);
+      this.words[this.length - 1] &= mask;
+    }
 
-  if (options && options.writable === false)
-    this.writable = false;
+    return this.strip();
+  };
 
-  this.allowHalfOpen = true;
-  if (options && options.allowHalfOpen === false)
-    this.allowHalfOpen = false;
+  // Return only lowers bits of number
+  BN.prototype.maskn = function maskn (bits) {
+    return this.clone().imaskn(bits);
+  };
 
-  this.once('end', onend);
-}
+  // Add plain number `num` to `this`
+  BN.prototype.iaddn = function iaddn (num) {
+    assert(typeof num === 'number');
+    assert(num < 0x4000000);
+    if (num < 0) return this.isubn(-num);
 
-// the no-half-open enforcer
-function onend() {
-  // if we allow half-open state, or if the writable side ended,
-  // then we're ok.
-  if (this.allowHalfOpen || this._writableState.ended)
-    return;
+    // Possible sign change
+    if (this.negative !== 0) {
+      if (this.length === 1 && (this.words[0] | 0) < num) {
+        this.words[0] = num - (this.words[0] | 0);
+        this.negative = 0;
+        return this;
+      }
 
-  // no more data can be written.
-  // But allow more writes to happen in this tick.
-  process.nextTick(this.end.bind(this));
-}
+      this.negative = 0;
+      this.isubn(num);
+      this.negative = 1;
+      return this;
+    }
 
-function forEach (xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
-}
+    // Add without checks
+    return this._iaddn(num);
+  };
 
-}).call(this,require('_process'))
-},{"./_stream_readable":18,"./_stream_writable":20,"_process":14,"core-util-is":21,"inherits":12}],17:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  BN.prototype._iaddn = function _iaddn (num) {
+    this.words[0] += num;
 
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
+    // Carry
+    for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) {
+      this.words[i] -= 0x4000000;
+      if (i === this.length - 1) {
+        this.words[i + 1] = 1;
+      } else {
+        this.words[i + 1]++;
+      }
+    }
+    this.length = Math.max(this.length, i + 1);
 
-module.exports = PassThrough;
+    return this;
+  };
 
-var Transform = require('./_stream_transform');
+  // Subtract plain number `num` from `this`
+  BN.prototype.isubn = function isubn (num) {
+    assert(typeof num === 'number');
+    assert(num < 0x4000000);
+    if (num < 0) return this.iaddn(-num);
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+    if (this.negative !== 0) {
+      this.negative = 0;
+      this.iaddn(num);
+      this.negative = 1;
+      return this;
+    }
 
-util.inherits(PassThrough, Transform);
+    this.words[0] -= num;
 
-function PassThrough(options) {
-  if (!(this instanceof PassThrough))
-    return new PassThrough(options);
+    if (this.length === 1 && this.words[0] < 0) {
+      this.words[0] = -this.words[0];
+      this.negative = 1;
+    } else {
+      // Carry
+      for (var i = 0; i < this.length && this.words[i] < 0; i++) {
+        this.words[i] += 0x4000000;
+        this.words[i + 1] -= 1;
+      }
+    }
 
-  Transform.call(this, options);
-}
+    return this.strip();
+  };
 
-PassThrough.prototype._transform = function(chunk, encoding, cb) {
-  cb(null, chunk);
-};
+  BN.prototype.addn = function addn (num) {
+    return this.clone().iaddn(num);
+  };
 
-},{"./_stream_transform":19,"core-util-is":21,"inherits":12}],18:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+  BN.prototype.subn = function subn (num) {
+    return this.clone().isubn(num);
+  };
 
-module.exports = Readable;
+  BN.prototype.iabs = function iabs () {
+    this.negative = 0;
 
-/*<replacement>*/
-var isArray = require('isarray');
-/*</replacement>*/
+    return this;
+  };
 
+  BN.prototype.abs = function abs () {
+    return this.clone().iabs();
+  };
 
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+  BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) {
+    var len = num.length + shift;
+    var i;
 
-Readable.ReadableState = ReadableState;
+    this._expand(len);
 
-var EE = require('events').EventEmitter;
+    var w;
+    var carry = 0;
+    for (i = 0; i < num.length; i++) {
+      w = (this.words[i + shift] | 0) + carry;
+      var right = (num.words[i] | 0) * mul;
+      w -= right & 0x3ffffff;
+      carry = (w >> 26) - ((right / 0x4000000) | 0);
+      this.words[i + shift] = w & 0x3ffffff;
+    }
+    for (; i < this.length - shift; i++) {
+      w = (this.words[i + shift] | 0) + carry;
+      carry = w >> 26;
+      this.words[i + shift] = w & 0x3ffffff;
+    }
 
-/*<replacement>*/
-if (!EE.listenerCount) EE.listenerCount = function(emitter, type) {
-  return emitter.listeners(type).length;
-};
-/*</replacement>*/
+    if (carry === 0) return this.strip();
 
-var Stream = require('stream');
+    // Subtraction overflow
+    assert(carry === -1);
+    carry = 0;
+    for (i = 0; i < this.length; i++) {
+      w = -(this.words[i] | 0) + carry;
+      carry = w >> 26;
+      this.words[i] = w & 0x3ffffff;
+    }
+    this.negative = 1;
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+    return this.strip();
+  };
 
-var StringDecoder;
+  BN.prototype._wordDiv = function _wordDiv (num, mode) {
+    var shift = this.length - num.length;
 
+    var a = this.clone();
+    var b = num;
 
-/*<replacement>*/
-var debug = require('util');
-if (debug && debug.debuglog) {
-  debug = debug.debuglog('stream');
-} else {
-  debug = function () {};
-}
-/*</replacement>*/
+    // Normalize
+    var bhi = b.words[b.length - 1] | 0;
+    var bhiBits = this._countBits(bhi);
+    shift = 26 - bhiBits;
+    if (shift !== 0) {
+      b = b.ushln(shift);
+      a.iushln(shift);
+      bhi = b.words[b.length - 1] | 0;
+    }
 
+    // Initialize quotient
+    var m = a.length - b.length;
+    var q;
 
-util.inherits(Readable, Stream);
+    if (mode !== 'mod') {
+      q = new BN(null);
+      q.length = m + 1;
+      q.words = new Array(q.length);
+      for (var i = 0; i < q.length; i++) {
+        q.words[i] = 0;
+      }
+    }
 
-function ReadableState(options, stream) {
-  var Duplex = require('./_stream_duplex');
+    var diff = a.clone()._ishlnsubmul(b, 1, m);
+    if (diff.negative === 0) {
+      a = diff;
+      if (q) {
+        q.words[m] = 1;
+      }
+    }
 
-  options = options || {};
+    for (var j = m - 1; j >= 0; j--) {
+      var qj = (a.words[b.length + j] | 0) * 0x4000000 +
+        (a.words[b.length + j - 1] | 0);
 
-  // the point at which it stops calling _read() to fill the buffer
-  // Note: 0 is a valid value, means "don't call _read preemptively ever"
-  var hwm = options.highWaterMark;
-  var defaultHwm = options.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
+      // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max
+      // (0x7ffffff)
+      qj = Math.min((qj / bhi) | 0, 0x3ffffff);
 
-  // cast to ints.
-  this.highWaterMark = ~~this.highWaterMark;
+      a._ishlnsubmul(b, qj, j);
+      while (a.negative !== 0) {
+        qj--;
+        a.negative = 0;
+        a._ishlnsubmul(b, 1, j);
+        if (!a.isZero()) {
+          a.negative ^= 1;
+        }
+      }
+      if (q) {
+        q.words[j] = qj;
+      }
+    }
+    if (q) {
+      q.strip();
+    }
+    a.strip();
 
-  this.buffer = [];
-  this.length = 0;
-  this.pipes = null;
-  this.pipesCount = 0;
-  this.flowing = null;
-  this.ended = false;
-  this.endEmitted = false;
-  this.reading = false;
+    // Denormalize
+    if (mode !== 'div' && shift !== 0) {
+      a.iushrn(shift);
+    }
 
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
+    return {
+      div: q || null,
+      mod: a
+    };
+  };
 
-  // whenever we return null, then we set a flag to say
-  // that we're awaiting a 'readable' event emission.
-  this.needReadable = false;
-  this.emittedReadable = false;
-  this.readableListening = false;
+  // NOTE: 1) `mode` can be set to `mod` to request mod only,
+  //       to `div` to request div only, or be absent to
+  //       request both div & mod
+  //       2) `positive` is true if unsigned mod is requested
+  BN.prototype.divmod = function divmod (num, mode, positive) {
+    assert(!num.isZero());
 
+    if (this.isZero()) {
+      return {
+        div: new BN(0),
+        mod: new BN(0)
+      };
+    }
 
-  // object stream flag. Used to make read(n) ignore n and to
-  // make all the buffer merging and length checks go away
-  this.objectMode = !!options.objectMode;
+    var div, mod, res;
+    if (this.negative !== 0 && num.negative === 0) {
+      res = this.neg().divmod(num, mode);
 
-  if (stream instanceof Duplex)
-    this.objectMode = this.objectMode || !!options.readableObjectMode;
+      if (mode !== 'mod') {
+        div = res.div.neg();
+      }
 
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
+      if (mode !== 'div') {
+        mod = res.mod.neg();
+        if (positive && mod.negative !== 0) {
+          mod.iadd(num);
+        }
+      }
 
-  // when piping, we only care about 'readable' events that happen
-  // after read()ing all the bytes and not getting any pushback.
-  this.ranOut = false;
+      return {
+        div: div,
+        mod: mod
+      };
+    }
 
-  // the number of writers that are awaiting a drain event in .pipe()s
-  this.awaitDrain = 0;
+    if (this.negative === 0 && num.negative !== 0) {
+      res = this.divmod(num.neg(), mode);
 
-  // if true, a maybeReadMore has been scheduled
-  this.readingMore = false;
+      if (mode !== 'mod') {
+        div = res.div.neg();
+      }
 
-  this.decoder = null;
-  this.encoding = null;
-  if (options.encoding) {
-    if (!StringDecoder)
-      StringDecoder = require('string_decoder/').StringDecoder;
-    this.decoder = new StringDecoder(options.encoding);
-    this.encoding = options.encoding;
-  }
-}
+      return {
+        div: div,
+        mod: res.mod
+      };
+    }
 
-function Readable(options) {
-  var Duplex = require('./_stream_duplex');
+    if ((this.negative & num.negative) !== 0) {
+      res = this.neg().divmod(num.neg(), mode);
 
-  if (!(this instanceof Readable))
-    return new Readable(options);
+      if (mode !== 'div') {
+        mod = res.mod.neg();
+        if (positive && mod.negative !== 0) {
+          mod.isub(num);
+        }
+      }
 
-  this._readableState = new ReadableState(options, this);
+      return {
+        div: res.div,
+        mod: mod
+      };
+    }
 
-  // legacy
-  this.readable = true;
+    // Both numbers are positive at this point
 
-  Stream.call(this);
-}
+    // Strip both numbers to approximate shift value
+    if (num.length > this.length || this.cmp(num) < 0) {
+      return {
+        div: new BN(0),
+        mod: this
+      };
+    }
 
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function(chunk, encoding) {
-  var state = this._readableState;
+    // Very short reduction
+    if (num.length === 1) {
+      if (mode === 'div') {
+        return {
+          div: this.divn(num.words[0]),
+          mod: null
+        };
+      }
+
+      if (mode === 'mod') {
+        return {
+          div: null,
+          mod: new BN(this.modn(num.words[0]))
+        };
+      }
 
-  if (util.isString(chunk) && !state.objectMode) {
-    encoding = encoding || state.defaultEncoding;
-    if (encoding !== state.encoding) {
-      chunk = new Buffer(chunk, encoding);
-      encoding = '';
+      return {
+        div: this.divn(num.words[0]),
+        mod: new BN(this.modn(num.words[0]))
+      };
     }
-  }
 
-  return readableAddChunk(this, state, chunk, encoding, false);
-};
+    return this._wordDiv(num, mode);
+  };
 
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function(chunk) {
-  var state = this._readableState;
-  return readableAddChunk(this, state, chunk, '', true);
-};
+  // Find `this` / `num`
+  BN.prototype.div = function div (num) {
+    return this.divmod(num, 'div', false).div;
+  };
 
-function readableAddChunk(stream, state, chunk, encoding, addToFront) {
-  var er = chunkInvalid(state, chunk);
-  if (er) {
-    stream.emit('error', er);
-  } else if (util.isNullOrUndefined(chunk)) {
-    state.reading = false;
-    if (!state.ended)
-      onEofChunk(stream, state);
-  } else if (state.objectMode || chunk && chunk.length > 0) {
-    if (state.ended && !addToFront) {
-      var e = new Error('stream.push() after EOF');
-      stream.emit('error', e);
-    } else if (state.endEmitted && addToFront) {
-      var e = new Error('stream.unshift() after end event');
-      stream.emit('error', e);
-    } else {
-      if (state.decoder && !addToFront && !encoding)
-        chunk = state.decoder.write(chunk);
+  // Find `this` % `num`
+  BN.prototype.mod = function mod (num) {
+    return this.divmod(num, 'mod', false).mod;
+  };
 
-      if (!addToFront)
-        state.reading = false;
+  BN.prototype.umod = function umod (num) {
+    return this.divmod(num, 'mod', true).mod;
+  };
 
-      // if we want the data now, just emit it.
-      if (state.flowing && state.length === 0 && !state.sync) {
-        stream.emit('data', chunk);
-        stream.read(0);
-      } else {
-        // update the buffer info.
-        state.length += state.objectMode ? 1 : chunk.length;
-        if (addToFront)
-          state.buffer.unshift(chunk);
-        else
-          state.buffer.push(chunk);
+  // Find Round(`this` / `num`)
+  BN.prototype.divRound = function divRound (num) {
+    var dm = this.divmod(num);
 
-        if (state.needReadable)
-          emitReadable(stream);
-      }
+    // Fast case - exact division
+    if (dm.mod.isZero()) return dm.div;
 
-      maybeReadMore(stream, state);
-    }
-  } else if (!addToFront) {
-    state.reading = false;
-  }
+    var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod;
 
-  return needMoreData(state);
-}
+    var half = num.ushrn(1);
+    var r2 = num.andln(1);
+    var cmp = mod.cmp(half);
 
+    // Round down
+    if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div;
 
+    // Round up
+    return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1);
+  };
 
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes.  This is to work around cases where hwm=0,
-// such as the repl.  Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
-  return !state.ended &&
-         (state.needReadable ||
-          state.length < state.highWaterMark ||
-          state.length === 0);
-}
+  BN.prototype.modn = function modn (num) {
+    assert(num <= 0x3ffffff);
+    var p = (1 << 26) % num;
 
-// backwards compatibility.
-Readable.prototype.setEncoding = function(enc) {
-  if (!StringDecoder)
-    StringDecoder = require('string_decoder/').StringDecoder;
-  this._readableState.decoder = new StringDecoder(enc);
-  this._readableState.encoding = enc;
-  return this;
-};
+    var acc = 0;
+    for (var i = this.length - 1; i >= 0; i--) {
+      acc = (p * acc + (this.words[i] | 0)) % num;
+    }
 
-// Don't raise the hwm > 128MB
-var MAX_HWM = 0x800000;
-function roundUpToNextPowerOf2(n) {
-  if (n >= MAX_HWM) {
-    n = MAX_HWM;
-  } else {
-    // Get the next highest power of 2
-    n--;
-    for (var p = 1; p < 32; p <<= 1) n |= n >> p;
-    n++;
-  }
-  return n;
-}
+    return acc;
+  };
 
-function howMuchToRead(n, state) {
-  if (state.length === 0 && state.ended)
-    return 0;
+  // In-place division by number
+  BN.prototype.idivn = function idivn (num) {
+    assert(num <= 0x3ffffff);
 
-  if (state.objectMode)
-    return n === 0 ? 0 : 1;
+    var carry = 0;
+    for (var i = this.length - 1; i >= 0; i--) {
+      var w = (this.words[i] | 0) + carry * 0x4000000;
+      this.words[i] = (w / num) | 0;
+      carry = w % num;
+    }
 
-  if (isNaN(n) || util.isNull(n)) {
-    // only flow one buffer at a time
-    if (state.flowing && state.buffer.length)
-      return state.buffer[0].length;
-    else
-      return state.length;
-  }
+    return this.strip();
+  };
 
-  if (n <= 0)
-    return 0;
+  BN.prototype.divn = function divn (num) {
+    return this.clone().idivn(num);
+  };
 
-  // If we're asking for more than the target buffer level,
-  // then raise the water mark.  Bump up to the next highest
-  // power of 2, to prevent increasing it excessively in tiny
-  // amounts.
-  if (n > state.highWaterMark)
-    state.highWaterMark = roundUpToNextPowerOf2(n);
-
-  // don't have that much.  return null, unless we've ended.
-  if (n > state.length) {
-    if (!state.ended) {
-      state.needReadable = true;
-      return 0;
-    } else
-      return state.length;
-  }
+  BN.prototype.egcd = function egcd (p) {
+    assert(p.negative === 0);
+    assert(!p.isZero());
 
-  return n;
-}
+    var x = this;
+    var y = p.clone();
 
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function(n) {
-  debug('read', n);
-  var state = this._readableState;
-  var nOrig = n;
+    if (x.negative !== 0) {
+      x = x.umod(p);
+    } else {
+      x = x.clone();
+    }
 
-  if (!util.isNumber(n) || n > 0)
-    state.emittedReadable = false;
+    // A * x + B * y = x
+    var A = new BN(1);
+    var B = new BN(0);
 
-  // if we're doing read(0) to trigger a readable event, but we
-  // already have a bunch of data in the buffer, then just trigger
-  // the 'readable' event and move on.
-  if (n === 0 &&
-      state.needReadable &&
-      (state.length >= state.highWaterMark || state.ended)) {
-    debug('read: emitReadable', state.length, state.ended);
-    if (state.length === 0 && state.ended)
-      endReadable(this);
-    else
-      emitReadable(this);
-    return null;
-  }
+    // C * x + D * y = y
+    var C = new BN(0);
+    var D = new BN(1);
 
-  n = howMuchToRead(n, state);
+    var g = 0;
 
-  // if we've ended, and we're now clear, then finish it up.
-  if (n === 0 && state.ended) {
-    if (state.length === 0)
-      endReadable(this);
-    return null;
-  }
+    while (x.isEven() && y.isEven()) {
+      x.iushrn(1);
+      y.iushrn(1);
+      ++g;
+    }
 
-  // All the actual chunk generation logic needs to be
-  // *below* the call to _read.  The reason is that in certain
-  // synthetic stream cases, such as passthrough streams, _read
-  // may be a completely synchronous operation which may change
-  // the state of the read buffer, providing enough data when
-  // before there was *not* enough.
-  //
-  // So, the steps are:
-  // 1. Figure out what the state of things will be after we do
-  // a read from the buffer.
-  //
-  // 2. If that resulting state will trigger a _read, then call _read.
-  // Note that this may be asynchronous, or synchronous.  Yes, it is
-  // deeply ugly to write APIs this way, but that still doesn't mean
-  // that the Readable class should behave improperly, as streams are
-  // designed to be sync/async agnostic.
-  // Take note if the _read call is sync or async (ie, if the read call
-  // has returned yet), so that we know whether or not it's safe to emit
-  // 'readable' etc.
-  //
-  // 3. Actually pull the requested chunks out of the buffer and return.
+    var yp = y.clone();
+    var xp = x.clone();
 
-  // if we need a readable event, then we need to do some reading.
-  var doRead = state.needReadable;
-  debug('need readable', doRead);
+    while (!x.isZero()) {
+      for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
+      if (i > 0) {
+        x.iushrn(i);
+        while (i-- > 0) {
+          if (A.isOdd() || B.isOdd()) {
+            A.iadd(yp);
+            B.isub(xp);
+          }
 
-  // if we currently have less than the highWaterMark, then also read some
-  if (state.length === 0 || state.length - n < state.highWaterMark) {
-    doRead = true;
-    debug('length less than watermark', doRead);
-  }
+          A.iushrn(1);
+          B.iushrn(1);
+        }
+      }
 
-  // however, if we've ended, then there's no point, and if we're already
-  // reading, then it's unnecessary.
-  if (state.ended || state.reading) {
-    doRead = false;
-    debug('reading or ended', doRead);
-  }
+      for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
+      if (j > 0) {
+        y.iushrn(j);
+        while (j-- > 0) {
+          if (C.isOdd() || D.isOdd()) {
+            C.iadd(yp);
+            D.isub(xp);
+          }
 
-  if (doRead) {
-    debug('do read');
-    state.reading = true;
-    state.sync = true;
-    // if the length is currently zero, then we *need* a readable event.
-    if (state.length === 0)
-      state.needReadable = true;
-    // call internal read method
-    this._read(state.highWaterMark);
-    state.sync = false;
-  }
+          C.iushrn(1);
+          D.iushrn(1);
+        }
+      }
 
-  // If _read pushed data synchronously, then `reading` will be false,
-  // and we need to re-evaluate how much data we can return to the user.
-  if (doRead && !state.reading)
-    n = howMuchToRead(nOrig, state);
+      if (x.cmp(y) >= 0) {
+        x.isub(y);
+        A.isub(C);
+        B.isub(D);
+      } else {
+        y.isub(x);
+        C.isub(A);
+        D.isub(B);
+      }
+    }
 
-  var ret;
-  if (n > 0)
-    ret = fromList(n, state);
-  else
-    ret = null;
+    return {
+      a: C,
+      b: D,
+      gcd: y.iushln(g)
+    };
+  };
 
-  if (util.isNull(ret)) {
-    state.needReadable = true;
-    n = 0;
-  }
+  // This is reduced incarnation of the binary EEA
+  // above, designated to invert members of the
+  // _prime_ fields F(p) at a maximal speed
+  BN.prototype._invmp = function _invmp (p) {
+    assert(p.negative === 0);
+    assert(!p.isZero());
 
-  state.length -= n;
+    var a = this;
+    var b = p.clone();
 
-  // If we have nothing in the buffer, then we want to know
-  // as soon as we *do* get something into the buffer.
-  if (state.length === 0 && !state.ended)
-    state.needReadable = true;
+    if (a.negative !== 0) {
+      a = a.umod(p);
+    } else {
+      a = a.clone();
+    }
 
-  // If we tried to read() past the EOF, then emit end on the next tick.
-  if (nOrig !== n && state.ended && state.length === 0)
-    endReadable(this);
+    var x1 = new BN(1);
+    var x2 = new BN(0);
 
-  if (!util.isNull(ret))
-    this.emit('data', ret);
+    var delta = b.clone();
 
-  return ret;
-};
+    while (a.cmpn(1) > 0 && b.cmpn(1) > 0) {
+      for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1);
+      if (i > 0) {
+        a.iushrn(i);
+        while (i-- > 0) {
+          if (x1.isOdd()) {
+            x1.iadd(delta);
+          }
 
-function chunkInvalid(state, chunk) {
-  var er = null;
-  if (!util.isBuffer(chunk) &&
-      !util.isString(chunk) &&
-      !util.isNullOrUndefined(chunk) &&
-      !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  return er;
-}
+          x1.iushrn(1);
+        }
+      }
 
+      for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1);
+      if (j > 0) {
+        b.iushrn(j);
+        while (j-- > 0) {
+          if (x2.isOdd()) {
+            x2.iadd(delta);
+          }
 
-function onEofChunk(stream, state) {
-  if (state.decoder && !state.ended) {
-    var chunk = state.decoder.end();
-    if (chunk && chunk.length) {
-      state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
-    }
-  }
-  state.ended = true;
+          x2.iushrn(1);
+        }
+      }
 
-  // emit 'readable' now to make sure it gets picked up.
-  emitReadable(stream);
-}
+      if (a.cmp(b) >= 0) {
+        a.isub(b);
+        x1.isub(x2);
+      } else {
+        b.isub(a);
+        x2.isub(x1);
+      }
+    }
 
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow.  This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
-  var state = stream._readableState;
-  state.needReadable = false;
-  if (!state.emittedReadable) {
-    debug('emitReadable', state.flowing);
-    state.emittedReadable = true;
-    if (state.sync)
-      process.nextTick(function() {
-        emitReadable_(stream);
-      });
-    else
-      emitReadable_(stream);
-  }
-}
+    var res;
+    if (a.cmpn(1) === 0) {
+      res = x1;
+    } else {
+      res = x2;
+    }
 
-function emitReadable_(stream) {
-  debug('emit readable');
-  stream.emit('readable');
-  flow(stream);
-}
+    if (res.cmpn(0) < 0) {
+      res.iadd(p);
+    }
 
+    return res;
+  };
 
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data.  that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
-  if (!state.readingMore) {
-    state.readingMore = true;
-    process.nextTick(function() {
-      maybeReadMore_(stream, state);
-    });
-  }
-}
+  BN.prototype.gcd = function gcd (num) {
+    if (this.isZero()) return num.abs();
+    if (num.isZero()) return this.abs();
 
-function maybeReadMore_(stream, state) {
-  var len = state.length;
-  while (!state.reading && !state.flowing && !state.ended &&
-         state.length < state.highWaterMark) {
-    debug('maybeReadMore read 0');
-    stream.read(0);
-    if (len === state.length)
-      // didn't get any data, stop spinning.
-      break;
-    else
-      len = state.length;
-  }
-  state.readingMore = false;
-}
+    var a = this.clone();
+    var b = num.clone();
+    a.negative = 0;
+    b.negative = 0;
 
-// abstract method.  to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function(n) {
-  this.emit('error', new Error('not implemented'));
-};
+    // Remove common factor of two
+    for (var shift = 0; a.isEven() && b.isEven(); shift++) {
+      a.iushrn(1);
+      b.iushrn(1);
+    }
 
-Readable.prototype.pipe = function(dest, pipeOpts) {
-  var src = this;
-  var state = this._readableState;
+    do {
+      while (a.isEven()) {
+        a.iushrn(1);
+      }
+      while (b.isEven()) {
+        b.iushrn(1);
+      }
 
-  switch (state.pipesCount) {
-    case 0:
-      state.pipes = dest;
-      break;
-    case 1:
-      state.pipes = [state.pipes, dest];
-      break;
-    default:
-      state.pipes.push(dest);
-      break;
-  }
-  state.pipesCount += 1;
-  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+      var r = a.cmp(b);
+      if (r < 0) {
+        // Swap `a` and `b` to make `a` always bigger than `b`
+        var t = a;
+        a = b;
+        b = t;
+      } else if (r === 0 || b.cmpn(1) === 0) {
+        break;
+      }
 
-  var doEnd = (!pipeOpts || pipeOpts.end !== false) &&
-              dest !== process.stdout &&
-              dest !== process.stderr;
+      a.isub(b);
+    } while (true);
 
-  var endFn = doEnd ? onend : cleanup;
-  if (state.endEmitted)
-    process.nextTick(endFn);
-  else
-    src.once('end', endFn);
+    return b.iushln(shift);
+  };
 
-  dest.on('unpipe', onunpipe);
-  function onunpipe(readable) {
-    debug('onunpipe');
-    if (readable === src) {
-      cleanup();
-    }
-  }
+  // Invert number in the field F(num)
+  BN.prototype.invm = function invm (num) {
+    return this.egcd(num).a.umod(num);
+  };
 
-  function onend() {
-    debug('onend');
-    dest.end();
-  }
+  BN.prototype.isEven = function isEven () {
+    return (this.words[0] & 1) === 0;
+  };
 
-  // when the dest drains, it reduces the awaitDrain counter
-  // on the source.  This would be more elegant with a .once()
-  // handler in flow(), but adding and removing repeatedly is
-  // too slow.
-  var ondrain = pipeOnDrain(src);
-  dest.on('drain', ondrain);
+  BN.prototype.isOdd = function isOdd () {
+    return (this.words[0] & 1) === 1;
+  };
 
-  function cleanup() {
-    debug('cleanup');
-    // cleanup event handlers once the pipe is broken
-    dest.removeListener('close', onclose);
-    dest.removeListener('finish', onfinish);
-    dest.removeListener('drain', ondrain);
-    dest.removeListener('error', onerror);
-    dest.removeListener('unpipe', onunpipe);
-    src.removeListener('end', onend);
-    src.removeListener('end', cleanup);
-    src.removeListener('data', ondata);
+  // And first word and num
+  BN.prototype.andln = function andln (num) {
+    return this.words[0] & num;
+  };
 
-    // if the reader is waiting for a drain event from this
-    // specific writer, then it would cause it to never start
-    // flowing again.
-    // So, if this is awaiting a drain, then we just call it now.
-    // If we don't know, then assume that we are waiting for one.
-    if (state.awaitDrain &&
-        (!dest._writableState || dest._writableState.needDrain))
-      ondrain();
-  }
+  // Increment at the bit position in-line
+  BN.prototype.bincn = function bincn (bit) {
+    assert(typeof bit === 'number');
+    var r = bit % 26;
+    var s = (bit - r) / 26;
+    var q = 1 << r;
 
-  src.on('data', ondata);
-  function ondata(chunk) {
-    debug('ondata');
-    var ret = dest.write(chunk);
-    if (false === ret) {
-      debug('false write response, pause',
-            src._readableState.awaitDrain);
-      src._readableState.awaitDrain++;
-      src.pause();
+    // Fast case: bit is much higher than all existing words
+    if (this.length <= s) {
+      this._expand(s + 1);
+      this.words[s] |= q;
+      return this;
     }
-  }
-
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
-  function onerror(er) {
-    debug('onerror', er);
-    unpipe();
-    dest.removeListener('error', onerror);
-    if (EE.listenerCount(dest, 'error') === 0)
-      dest.emit('error', er);
-  }
-  // This is a brutally ugly hack to make sure that our error handler
-  // is attached before any userland ones.  NEVER DO THIS.
-  if (!dest._events || !dest._events.error)
-    dest.on('error', onerror);
-  else if (isArray(dest._events.error))
-    dest._events.error.unshift(onerror);
-  else
-    dest._events.error = [onerror, dest._events.error];
 
+    // Add bit and propagate, if needed
+    var carry = q;
+    for (var i = s; carry !== 0 && i < this.length; i++) {
+      var w = this.words[i] | 0;
+      w += carry;
+      carry = w >>> 26;
+      w &= 0x3ffffff;
+      this.words[i] = w;
+    }
+    if (carry !== 0) {
+      this.words[i] = carry;
+      this.length++;
+    }
+    return this;
+  };
 
+  BN.prototype.isZero = function isZero () {
+    return this.length === 1 && this.words[0] === 0;
+  };
 
-  // Both close and finish should trigger unpipe, but only once.
-  function onclose() {
-    dest.removeListener('finish', onfinish);
-    unpipe();
-  }
-  dest.once('close', onclose);
-  function onfinish() {
-    debug('onfinish');
-    dest.removeListener('close', onclose);
-    unpipe();
-  }
-  dest.once('finish', onfinish);
+  BN.prototype.cmpn = function cmpn (num) {
+    var negative = num < 0;
 
-  function unpipe() {
-    debug('unpipe');
-    src.unpipe(dest);
-  }
+    if (this.negative !== 0 && !negative) return -1;
+    if (this.negative === 0 && negative) return 1;
 
-  // tell the dest that it's being piped to
-  dest.emit('pipe', src);
+    this.strip();
 
-  // start the flow if it hasn't been started already.
-  if (!state.flowing) {
-    debug('pipe resume');
-    src.resume();
-  }
+    var res;
+    if (this.length > 1) {
+      res = 1;
+    } else {
+      if (negative) {
+        num = -num;
+      }
 
-  return dest;
-};
+      assert(num <= 0x3ffffff, 'Number is too big');
 
-function pipeOnDrain(src) {
-  return function() {
-    var state = src._readableState;
-    debug('pipeOnDrain', state.awaitDrain);
-    if (state.awaitDrain)
-      state.awaitDrain--;
-    if (state.awaitDrain === 0 && EE.listenerCount(src, 'data')) {
-      state.flowing = true;
-      flow(src);
+      var w = this.words[0] | 0;
+      res = w === num ? 0 : w < num ? -1 : 1;
     }
+    if (this.negative !== 0) return -res | 0;
+    return res;
   };
-}
 
+  // Compare two numbers and return:
+  // 1 - if `this` > `num`
+  // 0 - if `this` == `num`
+  // -1 - if `this` < `num`
+  BN.prototype.cmp = function cmp (num) {
+    if (this.negative !== 0 && num.negative === 0) return -1;
+    if (this.negative === 0 && num.negative !== 0) return 1;
 
-Readable.prototype.unpipe = function(dest) {
-  var state = this._readableState;
-
-  // if we're not piping anywhere, then do nothing.
-  if (state.pipesCount === 0)
-    return this;
+    var res = this.ucmp(num);
+    if (this.negative !== 0) return -res | 0;
+    return res;
+  };
 
-  // just one destination.  most common case.
-  if (state.pipesCount === 1) {
-    // passed in one, but it's not the right one.
-    if (dest && dest !== state.pipes)
-      return this;
+  // Unsigned comparison
+  BN.prototype.ucmp = function ucmp (num) {
+    // At this point both numbers have the same sign
+    if (this.length > num.length) return 1;
+    if (this.length < num.length) return -1;
 
-    if (!dest)
-      dest = state.pipes;
+    var res = 0;
+    for (var i = this.length - 1; i >= 0; i--) {
+      var a = this.words[i] | 0;
+      var b = num.words[i] | 0;
 
-    // got a match.
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-    if (dest)
-      dest.emit('unpipe', this);
-    return this;
-  }
+      if (a === b) continue;
+      if (a < b) {
+        res = -1;
+      } else if (a > b) {
+        res = 1;
+      }
+      break;
+    }
+    return res;
+  };
 
-  // slow case. multiple pipe destinations.
+  BN.prototype.gtn = function gtn (num) {
+    return this.cmpn(num) === 1;
+  };
 
-  if (!dest) {
-    // remove all.
-    var dests = state.pipes;
-    var len = state.pipesCount;
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
+  BN.prototype.gt = function gt (num) {
+    return this.cmp(num) === 1;
+  };
 
-    for (var i = 0; i < len; i++)
-      dests[i].emit('unpipe', this);
-    return this;
-  }
+  BN.prototype.gten = function gten (num) {
+    return this.cmpn(num) >= 0;
+  };
 
-  // try to find the right one.
-  var i = indexOf(state.pipes, dest);
-  if (i === -1)
-    return this;
+  BN.prototype.gte = function gte (num) {
+    return this.cmp(num) >= 0;
+  };
 
-  state.pipes.splice(i, 1);
-  state.pipesCount -= 1;
-  if (state.pipesCount === 1)
-    state.pipes = state.pipes[0];
+  BN.prototype.ltn = function ltn (num) {
+    return this.cmpn(num) === -1;
+  };
 
-  dest.emit('unpipe', this);
+  BN.prototype.lt = function lt (num) {
+    return this.cmp(num) === -1;
+  };
 
-  return this;
-};
+  BN.prototype.lten = function lten (num) {
+    return this.cmpn(num) <= 0;
+  };
 
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function(ev, fn) {
-  var res = Stream.prototype.on.call(this, ev, fn);
+  BN.prototype.lte = function lte (num) {
+    return this.cmp(num) <= 0;
+  };
 
-  // If listening to data, and it has not explicitly been paused,
-  // then call resume to start the flow of data on the next tick.
-  if (ev === 'data' && false !== this._readableState.flowing) {
-    this.resume();
-  }
+  BN.prototype.eqn = function eqn (num) {
+    return this.cmpn(num) === 0;
+  };
 
-  if (ev === 'readable' && this.readable) {
-    var state = this._readableState;
-    if (!state.readableListening) {
-      state.readableListening = true;
-      state.emittedReadable = false;
-      state.needReadable = true;
-      if (!state.reading) {
-        var self = this;
-        process.nextTick(function() {
-          debug('readable nexttick read 0');
-          self.read(0);
-        });
-      } else if (state.length) {
-        emitReadable(this, state);
-      }
-    }
-  }
+  BN.prototype.eq = function eq (num) {
+    return this.cmp(num) === 0;
+  };
 
-  return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
+  //
+  // A reduce context, could be using montgomery or something better, depending
+  // on the `m` itself.
+  //
+  BN.red = function red (num) {
+    return new Red(num);
+  };
 
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function() {
-  var state = this._readableState;
-  if (!state.flowing) {
-    debug('resume');
-    state.flowing = true;
-    if (!state.reading) {
-      debug('resume read 0');
-      this.read(0);
-    }
-    resume(this, state);
-  }
-  return this;
-};
+  BN.prototype.toRed = function toRed (ctx) {
+    assert(!this.red, 'Already a number in reduction context');
+    assert(this.negative === 0, 'red works only with positives');
+    return ctx.convertTo(this)._forceRed(ctx);
+  };
 
-function resume(stream, state) {
-  if (!state.resumeScheduled) {
-    state.resumeScheduled = true;
-    process.nextTick(function() {
-      resume_(stream, state);
-    });
-  }
-}
+  BN.prototype.fromRed = function fromRed () {
+    assert(this.red, 'fromRed works only with numbers in reduction context');
+    return this.red.convertFrom(this);
+  };
 
-function resume_(stream, state) {
-  state.resumeScheduled = false;
-  stream.emit('resume');
-  flow(stream);
-  if (state.flowing && !state.reading)
-    stream.read(0);
-}
+  BN.prototype._forceRed = function _forceRed (ctx) {
+    this.red = ctx;
+    return this;
+  };
 
-Readable.prototype.pause = function() {
-  debug('call pause flowing=%j', this._readableState.flowing);
-  if (false !== this._readableState.flowing) {
-    debug('pause');
-    this._readableState.flowing = false;
-    this.emit('pause');
-  }
-  return this;
-};
+  BN.prototype.forceRed = function forceRed (ctx) {
+    assert(!this.red, 'Already a number in reduction context');
+    return this._forceRed(ctx);
+  };
 
-function flow(stream) {
-  var state = stream._readableState;
-  debug('flow', state.flowing);
-  if (state.flowing) {
-    do {
-      var chunk = stream.read();
-    } while (null !== chunk && state.flowing);
-  }
-}
+  BN.prototype.redAdd = function redAdd (num) {
+    assert(this.red, 'redAdd works only with red numbers');
+    return this.red.add(this, num);
+  };
 
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function(stream) {
-  var state = this._readableState;
-  var paused = false;
+  BN.prototype.redIAdd = function redIAdd (num) {
+    assert(this.red, 'redIAdd works only with red numbers');
+    return this.red.iadd(this, num);
+  };
 
-  var self = this;
-  stream.on('end', function() {
-    debug('wrapped end');
-    if (state.decoder && !state.ended) {
-      var chunk = state.decoder.end();
-      if (chunk && chunk.length)
-        self.push(chunk);
-    }
+  BN.prototype.redSub = function redSub (num) {
+    assert(this.red, 'redSub works only with red numbers');
+    return this.red.sub(this, num);
+  };
 
-    self.push(null);
-  });
+  BN.prototype.redISub = function redISub (num) {
+    assert(this.red, 'redISub works only with red numbers');
+    return this.red.isub(this, num);
+  };
 
-  stream.on('data', function(chunk) {
-    debug('wrapped data');
-    if (state.decoder)
-      chunk = state.decoder.write(chunk);
-    if (!chunk || !state.objectMode && !chunk.length)
-      return;
+  BN.prototype.redShl = function redShl (num) {
+    assert(this.red, 'redShl works only with red numbers');
+    return this.red.shl(this, num);
+  };
 
-    var ret = self.push(chunk);
-    if (!ret) {
-      paused = true;
-      stream.pause();
-    }
-  });
+  BN.prototype.redMul = function redMul (num) {
+    assert(this.red, 'redMul works only with red numbers');
+    this.red._verify2(this, num);
+    return this.red.mul(this, num);
+  };
 
-  // proxy all the other methods.
-  // important when wrapping filters and duplexes.
-  for (var i in stream) {
-    if (util.isFunction(stream[i]) && util.isUndefined(this[i])) {
-      this[i] = function(method) { return function() {
-        return stream[method].apply(stream, arguments);
-      }}(i);
-    }
-  }
+  BN.prototype.redIMul = function redIMul (num) {
+    assert(this.red, 'redMul works only with red numbers');
+    this.red._verify2(this, num);
+    return this.red.imul(this, num);
+  };
 
-  // proxy certain important events.
-  var events = ['error', 'close', 'destroy', 'pause', 'resume'];
-  forEach(events, function(ev) {
-    stream.on(ev, self.emit.bind(self, ev));
-  });
+  BN.prototype.redSqr = function redSqr () {
+    assert(this.red, 'redSqr works only with red numbers');
+    this.red._verify1(this);
+    return this.red.sqr(this);
+  };
 
-  // when we try to consume some more bytes, simply unpause the
-  // underlying stream.
-  self._read = function(n) {
-    debug('wrapped _read', n);
-    if (paused) {
-      paused = false;
-      stream.resume();
-    }
+  BN.prototype.redISqr = function redISqr () {
+    assert(this.red, 'redISqr works only with red numbers');
+    this.red._verify1(this);
+    return this.red.isqr(this);
   };
 
-  return self;
-};
+  // Square root over p
+  BN.prototype.redSqrt = function redSqrt () {
+    assert(this.red, 'redSqrt works only with red numbers');
+    this.red._verify1(this);
+    return this.red.sqrt(this);
+  };
 
+  BN.prototype.redInvm = function redInvm () {
+    assert(this.red, 'redInvm works only with red numbers');
+    this.red._verify1(this);
+    return this.red.invm(this);
+  };
 
+  // Return negative clone of `this` % `red modulo`
+  BN.prototype.redNeg = function redNeg () {
+    assert(this.red, 'redNeg works only with red numbers');
+    this.red._verify1(this);
+    return this.red.neg(this);
+  };
 
-// exposed for testing purposes only.
-Readable._fromList = fromList;
+  BN.prototype.redPow = function redPow (num) {
+    assert(this.red && !num.red, 'redPow(normalNum)');
+    this.red._verify1(this);
+    return this.red.pow(this, num);
+  };
 
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-function fromList(n, state) {
-  var list = state.buffer;
-  var length = state.length;
-  var stringMode = !!state.decoder;
-  var objectMode = !!state.objectMode;
-  var ret;
+  // Prime numbers with efficient reduction
+  var primes = {
+    k256: null,
+    p224: null,
+    p192: null,
+    p25519: null
+  };
 
-  // nothing in the list, definitely empty.
-  if (list.length === 0)
-    return null;
+  // Pseudo-Mersenne prime
+  function MPrime (name, p) {
+    // P = 2 ^ N - K
+    this.name = name;
+    this.p = new BN(p, 16);
+    this.n = this.p.bitLength();
+    this.k = new BN(1).iushln(this.n).isub(this.p);
 
-  if (length === 0)
-    ret = null;
-  else if (objectMode)
-    ret = list.shift();
-  else if (!n || n >= length) {
-    // read it all, truncate the array.
-    if (stringMode)
-      ret = list.join('');
-    else
-      ret = Buffer.concat(list, length);
-    list.length = 0;
-  } else {
-    // read just some of it.
-    if (n < list[0].length) {
-      // just take a part of the first list item.
-      // slice is the same for buffers and strings.
-      var buf = list[0];
-      ret = buf.slice(0, n);
-      list[0] = buf.slice(n);
-    } else if (n === list[0].length) {
-      // first list is a perfect match
-      ret = list.shift();
-    } else {
-      // complex case.
-      // we have enough to cover it, but it spans past the first buffer.
-      if (stringMode)
-        ret = '';
-      else
-        ret = new Buffer(n);
+    this.tmp = this._tmp();
+  }
 
-      var c = 0;
-      for (var i = 0, l = list.length; i < l && c < n; i++) {
-        var buf = list[0];
-        var cpy = Math.min(n - c, buf.length);
+  MPrime.prototype._tmp = function _tmp () {
+    var tmp = new BN(null);
+    tmp.words = new Array(Math.ceil(this.n / 13));
+    return tmp;
+  };
 
-        if (stringMode)
-          ret += buf.slice(0, cpy);
-        else
-          buf.copy(ret, c, 0, cpy);
+  MPrime.prototype.ireduce = function ireduce (num) {
+    // Assumes that `num` is less than `P^2`
+    // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P)
+    var r = num;
+    var rlen;
 
-        if (cpy < buf.length)
-          list[0] = buf.slice(cpy);
-        else
-          list.shift();
+    do {
+      this.split(r, this.tmp);
+      r = this.imulK(r);
+      r = r.iadd(this.tmp);
+      rlen = r.bitLength();
+    } while (rlen > this.n);
 
-        c += cpy;
-      }
+    var cmp = rlen < this.n ? -1 : r.ucmp(this.p);
+    if (cmp === 0) {
+      r.words[0] = 0;
+      r.length = 1;
+    } else if (cmp > 0) {
+      r.isub(this.p);
+    } else {
+      r.strip();
     }
-  }
 
-  return ret;
-}
+    return r;
+  };
 
-function endReadable(stream) {
-  var state = stream._readableState;
+  MPrime.prototype.split = function split (input, out) {
+    input.iushrn(this.n, 0, out);
+  };
 
-  // If we get here before consuming all the bytes, then that is a
-  // bug in node.  Should never happen.
-  if (state.length > 0)
-    throw new Error('endReadable called on non-empty stream');
+  MPrime.prototype.imulK = function imulK (num) {
+    return num.imul(this.k);
+  };
 
-  if (!state.endEmitted) {
-    state.ended = true;
-    process.nextTick(function() {
-      // Check that we didn't get one last unshift.
-      if (!state.endEmitted && state.length === 0) {
-        state.endEmitted = true;
-        stream.readable = false;
-        stream.emit('end');
-      }
-    });
+  function K256 () {
+    MPrime.call(
+      this,
+      'k256',
+      'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f');
   }
-}
+  inherits(K256, MPrime);
 
-function forEach (xs, f) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    f(xs[i], i);
-  }
-}
+  K256.prototype.split = function split (input, output) {
+    // 256 = 9 * 26 + 22
+    var mask = 0x3fffff;
 
-function indexOf (xs, x) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    if (xs[i] === x) return i;
-  }
-  return -1;
-}
+    var outLen = Math.min(input.length, 9);
+    for (var i = 0; i < outLen; i++) {
+      output.words[i] = input.words[i];
+    }
+    output.length = outLen;
 
-}).call(this,require('_process'))
-},{"./_stream_duplex":16,"_process":14,"buffer":7,"core-util-is":21,"events":11,"inherits":12,"isarray":13,"stream":26,"string_decoder/":27,"util":6}],19:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+    if (input.length <= 9) {
+      input.words[0] = 0;
+      input.length = 1;
+      return;
+    }
 
+    // Shift by 9 limbs
+    var prev = input.words[9];
+    output.words[output.length++] = prev & mask;
 
-// a transform stream is a readable/writable stream where you do
-// something with the data.  Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored.  (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation.  For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes.  When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up.  When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer.  When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks.  If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk.  However,
-// a pathological inflate type of transform can cause excessive buffering
-// here.  For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output.  In this case, you could write a very small
-// amount of input, and end up with a very large amount of output.  In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform.  A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
+    for (i = 10; i < input.length; i++) {
+      var next = input.words[i] | 0;
+      input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22);
+      prev = next;
+    }
+    prev >>>= 22;
+    input.words[i - 10] = prev;
+    if (prev === 0 && input.length > 10) {
+      input.length -= 10;
+    } else {
+      input.length -= 9;
+    }
+  };
+
+  K256.prototype.imulK = function imulK (num) {
+    // K = 0x1000003d1 = [ 0x40, 0x3d1 ]
+    num.words[num.length] = 0;
+    num.words[num.length + 1] = 0;
+    num.length += 2;
+
+    // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390
+    var lo = 0;
+    for (var i = 0; i < num.length; i++) {
+      var w = num.words[i] | 0;
+      lo += w * 0x3d1;
+      num.words[i] = lo & 0x3ffffff;
+      lo = w * 0x40 + ((lo / 0x4000000) | 0);
+    }
 
-module.exports = Transform;
+    // Fast length reduction
+    if (num.words[num.length - 1] === 0) {
+      num.length--;
+      if (num.words[num.length - 1] === 0) {
+        num.length--;
+      }
+    }
+    return num;
+  };
 
-var Duplex = require('./_stream_duplex');
+  function P224 () {
+    MPrime.call(
+      this,
+      'p224',
+      'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001');
+  }
+  inherits(P224, MPrime);
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+  function P192 () {
+    MPrime.call(
+      this,
+      'p192',
+      'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff');
+  }
+  inherits(P192, MPrime);
 
-util.inherits(Transform, Duplex);
+  function P25519 () {
+    // 2 ^ 255 - 19
+    MPrime.call(
+      this,
+      '25519',
+      '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed');
+  }
+  inherits(P25519, MPrime);
 
+  P25519.prototype.imulK = function imulK (num) {
+    // K = 0x13
+    var carry = 0;
+    for (var i = 0; i < num.length; i++) {
+      var hi = (num.words[i] | 0) * 0x13 + carry;
+      var lo = hi & 0x3ffffff;
+      hi >>>= 26;
 
-function TransformState(options, stream) {
-  this.afterTransform = function(er, data) {
-    return afterTransform(stream, er, data);
+      num.words[i] = lo;
+      carry = hi;
+    }
+    if (carry !== 0) {
+      num.words[num.length++] = carry;
+    }
+    return num;
   };
 
-  this.needTransform = false;
-  this.transforming = false;
-  this.writecb = null;
-  this.writechunk = null;
-}
+  // Exported mostly for testing purposes, use plain name instead
+  BN._prime = function prime (name) {
+    // Cached version of prime
+    if (primes[name]) return primes[name];
 
-function afterTransform(stream, er, data) {
-  var ts = stream._transformState;
-  ts.transforming = false;
+    var prime;
+    if (name === 'k256') {
+      prime = new K256();
+    } else if (name === 'p224') {
+      prime = new P224();
+    } else if (name === 'p192') {
+      prime = new P192();
+    } else if (name === 'p25519') {
+      prime = new P25519();
+    } else {
+      throw new Error('Unknown prime ' + name);
+    }
+    primes[name] = prime;
 
-  var cb = ts.writecb;
+    return prime;
+  };
 
-  if (!cb)
-    return stream.emit('error', new Error('no writecb in Transform class'));
+  //
+  // Base reduction engine
+  //
+  function Red (m) {
+    if (typeof m === 'string') {
+      var prime = BN._prime(m);
+      this.m = prime.p;
+      this.prime = prime;
+    } else {
+      assert(m.gtn(1), 'modulus must be greater than 1');
+      this.m = m;
+      this.prime = null;
+    }
+  }
 
-  ts.writechunk = null;
-  ts.writecb = null;
+  Red.prototype._verify1 = function _verify1 (a) {
+    assert(a.negative === 0, 'red works only with positives');
+    assert(a.red, 'red works only with red numbers');
+  };
 
-  if (!util.isNullOrUndefined(data))
-    stream.push(data);
+  Red.prototype._verify2 = function _verify2 (a, b) {
+    assert((a.negative | b.negative) === 0, 'red works only with positives');
+    assert(a.red && a.red === b.red,
+      'red works only with red numbers');
+  };
 
-  if (cb)
-    cb(er);
+  Red.prototype.imod = function imod (a) {
+    if (this.prime) return this.prime.ireduce(a)._forceRed(this);
+    return a.umod(this.m)._forceRed(this);
+  };
 
-  var rs = stream._readableState;
-  rs.reading = false;
-  if (rs.needReadable || rs.length < rs.highWaterMark) {
-    stream._read(rs.highWaterMark);
-  }
-}
+  Red.prototype.neg = function neg (a) {
+    if (a.isZero()) {
+      return a.clone();
+    }
 
+    return this.m.sub(a)._forceRed(this);
+  };
 
-function Transform(options) {
-  if (!(this instanceof Transform))
-    return new Transform(options);
+  Red.prototype.add = function add (a, b) {
+    this._verify2(a, b);
 
-  Duplex.call(this, options);
+    var res = a.add(b);
+    if (res.cmp(this.m) >= 0) {
+      res.isub(this.m);
+    }
+    return res._forceRed(this);
+  };
 
-  this._transformState = new TransformState(options, this);
+  Red.prototype.iadd = function iadd (a, b) {
+    this._verify2(a, b);
 
-  // when the writable side finishes, then flush out anything remaining.
-  var stream = this;
+    var res = a.iadd(b);
+    if (res.cmp(this.m) >= 0) {
+      res.isub(this.m);
+    }
+    return res;
+  };
 
-  // start out asking for a readable event once data is transformed.
-  this._readableState.needReadable = true;
+  Red.prototype.sub = function sub (a, b) {
+    this._verify2(a, b);
 
-  // we have implemented the _read method, and done the other things
-  // that Readable wants before the first _read call, so unset the
-  // sync guard flag.
-  this._readableState.sync = false;
+    var res = a.sub(b);
+    if (res.cmpn(0) < 0) {
+      res.iadd(this.m);
+    }
+    return res._forceRed(this);
+  };
 
-  this.once('prefinish', function() {
-    if (util.isFunction(this._flush))
-      this._flush(function(er) {
-        done(stream, er);
-      });
-    else
-      done(stream);
-  });
-}
+  Red.prototype.isub = function isub (a, b) {
+    this._verify2(a, b);
 
-Transform.prototype.push = function(chunk, encoding) {
-  this._transformState.needTransform = false;
-  return Duplex.prototype.push.call(this, chunk, encoding);
-};
+    var res = a.isub(b);
+    if (res.cmpn(0) < 0) {
+      res.iadd(this.m);
+    }
+    return res;
+  };
 
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side.  You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk.  If you pass
-// an error, then that'll put the hurt on the whole operation.  If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function(chunk, encoding, cb) {
-  throw new Error('not implemented');
-};
+  Red.prototype.shl = function shl (a, num) {
+    this._verify1(a);
+    return this.imod(a.ushln(num));
+  };
 
-Transform.prototype._write = function(chunk, encoding, cb) {
-  var ts = this._transformState;
-  ts.writecb = cb;
-  ts.writechunk = chunk;
-  ts.writeencoding = encoding;
-  if (!ts.transforming) {
-    var rs = this._readableState;
-    if (ts.needTransform ||
-        rs.needReadable ||
-        rs.length < rs.highWaterMark)
-      this._read(rs.highWaterMark);
-  }
-};
+  Red.prototype.imul = function imul (a, b) {
+    this._verify2(a, b);
+    return this.imod(a.imul(b));
+  };
 
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function(n) {
-  var ts = this._transformState;
+  Red.prototype.mul = function mul (a, b) {
+    this._verify2(a, b);
+    return this.imod(a.mul(b));
+  };
 
-  if (!util.isNull(ts.writechunk) && ts.writecb && !ts.transforming) {
-    ts.transforming = true;
-    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
-  } else {
-    // mark that we need a transform, so that any data that comes in
-    // will get processed, now that we've asked for it.
-    ts.needTransform = true;
-  }
-};
+  Red.prototype.isqr = function isqr (a) {
+    return this.imul(a, a.clone());
+  };
 
+  Red.prototype.sqr = function sqr (a) {
+    return this.mul(a, a);
+  };
 
-function done(stream, er) {
-  if (er)
-    return stream.emit('error', er);
+  Red.prototype.sqrt = function sqrt (a) {
+    if (a.isZero()) return a.clone();
 
-  // if there's nothing in the write buffer, then that means
-  // that nothing more will ever be provided
-  var ws = stream._writableState;
-  var ts = stream._transformState;
+    var mod3 = this.m.andln(3);
+    assert(mod3 % 2 === 1);
 
-  if (ws.length)
-    throw new Error('calling transform done when ws.length != 0');
+    // Fast case
+    if (mod3 === 3) {
+      var pow = this.m.add(new BN(1)).iushrn(2);
+      return this.pow(a, pow);
+    }
 
-  if (ts.transforming)
-    throw new Error('calling transform done when still transforming');
+    // Tonelli-Shanks algorithm (Totally unoptimized and slow)
+    //
+    // Find Q and S, that Q * 2 ^ S = (P - 1)
+    var q = this.m.subn(1);
+    var s = 0;
+    while (!q.isZero() && q.andln(1) === 0) {
+      s++;
+      q.iushrn(1);
+    }
+    assert(!q.isZero());
 
-  return stream.push(null);
-}
+    var one = new BN(1).toRed(this);
+    var nOne = one.redNeg();
 
-},{"./_stream_duplex":16,"core-util-is":21,"inherits":12}],20:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+    // Find quadratic non-residue
+    // NOTE: Max is such because of generalized Riemann hypothesis.
+    var lpow = this.m.subn(1).iushrn(1);
+    var z = this.m.bitLength();
+    z = new BN(2 * z * z).toRed(this);
 
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, cb), and it'll handle all
-// the drain event emission and buffering.
+    while (this.pow(z, lpow).cmp(nOne) !== 0) {
+      z.redIAdd(nOne);
+    }
 
-module.exports = Writable;
+    var c = this.pow(z, q);
+    var r = this.pow(a, q.addn(1).iushrn(1));
+    var t = this.pow(a, q);
+    var m = s;
+    while (t.cmp(one) !== 0) {
+      var tmp = t;
+      for (var i = 0; tmp.cmp(one) !== 0; i++) {
+        tmp = tmp.redSqr();
+      }
+      assert(i < m);
+      var b = this.pow(c, new BN(1).iushln(m - i - 1));
 
-/*<replacement>*/
-var Buffer = require('buffer').Buffer;
-/*</replacement>*/
+      r = r.redMul(b);
+      c = b.redSqr();
+      t = t.redMul(c);
+      m = i;
+    }
 
-Writable.WritableState = WritableState;
+    return r;
+  };
 
+  Red.prototype.invm = function invm (a) {
+    var inv = a._invmp(this.m);
+    if (inv.negative !== 0) {
+      inv.negative = 0;
+      return this.imod(inv).redNeg();
+    } else {
+      return this.imod(inv);
+    }
+  };
 
-/*<replacement>*/
-var util = require('core-util-is');
-util.inherits = require('inherits');
-/*</replacement>*/
+  Red.prototype.pow = function pow (a, num) {
+    if (num.isZero()) return new BN(1);
+    if (num.cmpn(1) === 0) return a.clone();
 
-var Stream = require('stream');
+    var windowSize = 4;
+    var wnd = new Array(1 << windowSize);
+    wnd[0] = new BN(1).toRed(this);
+    wnd[1] = a;
+    for (var i = 2; i < wnd.length; i++) {
+      wnd[i] = this.mul(wnd[i - 1], a);
+    }
 
-util.inherits(Writable, Stream);
+    var res = wnd[0];
+    var current = 0;
+    var currentLen = 0;
+    var start = num.bitLength() % 26;
+    if (start === 0) {
+      start = 26;
+    }
 
-function WriteReq(chunk, encoding, cb) {
-  this.chunk = chunk;
-  this.encoding = encoding;
-  this.callback = cb;
-}
+    for (i = num.length - 1; i >= 0; i--) {
+      var word = num.words[i];
+      for (var j = start - 1; j >= 0; j--) {
+        var bit = (word >> j) & 1;
+        if (res !== wnd[0]) {
+          res = this.sqr(res);
+        }
 
-function WritableState(options, stream) {
-  var Duplex = require('./_stream_duplex');
+        if (bit === 0 && current === 0) {
+          currentLen = 0;
+          continue;
+        }
 
-  options = options || {};
+        current <<= 1;
+        current |= bit;
+        currentLen++;
+        if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue;
 
-  // the point at which write() starts returning false
-  // Note: 0 is a valid value, means that we always return false if
-  // the entire buffer is not flushed immediately on write()
-  var hwm = options.highWaterMark;
-  var defaultHwm = options.objectMode ? 16 : 16 * 1024;
-  this.highWaterMark = (hwm || hwm === 0) ? hwm : defaultHwm;
+        res = this.mul(res, wnd[current]);
+        currentLen = 0;
+        current = 0;
+      }
+      start = 26;
+    }
 
-  // object stream flag to indicate whether or not this stream
-  // contains buffers or objects.
-  this.objectMode = !!options.objectMode;
+    return res;
+  };
 
-  if (stream instanceof Duplex)
-    this.objectMode = this.objectMode || !!options.writableObjectMode;
+  Red.prototype.convertTo = function convertTo (num) {
+    var r = num.umod(this.m);
 
-  // cast to ints.
-  this.highWaterMark = ~~this.highWaterMark;
+    return r === num ? r.clone() : r;
+  };
 
-  this.needDrain = false;
-  // at the start of calling end()
-  this.ending = false;
-  // when end() has been called, and returned
-  this.ended = false;
-  // when 'finish' is emitted
-  this.finished = false;
+  Red.prototype.convertFrom = function convertFrom (num) {
+    var res = num.clone();
+    res.red = null;
+    return res;
+  };
 
-  // should we decode strings into buffers before passing to _write?
-  // this is here so that some node-core streams can optimize string
-  // handling at a lower level.
-  var noDecode = options.decodeStrings === false;
-  this.decodeStrings = !noDecode;
+  //
+  // Montgomery method engine
+  //
 
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
+  BN.mont = function mont (num) {
+    return new Mont(num);
+  };
 
-  // not an actual buffer we keep track of, but a measurement
-  // of how much we're waiting to get pushed to some underlying
-  // socket or file.
-  this.length = 0;
+  function Mont (m) {
+    Red.call(this, m);
 
-  // a flag to see when we're in the middle of a write.
-  this.writing = false;
+    this.shift = this.m.bitLength();
+    if (this.shift % 26 !== 0) {
+      this.shift += 26 - (this.shift % 26);
+    }
 
-  // when true all writes will be buffered until .uncork() call
-  this.corked = 0;
+    this.r = new BN(1).iushln(this.shift);
+    this.r2 = this.imod(this.r.sqr());
+    this.rinv = this.r._invmp(this.m);
 
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
+    this.minv = this.rinv.mul(this.r).isubn(1).div(this.m);
+    this.minv = this.minv.umod(this.r);
+    this.minv = this.r.sub(this.minv);
+  }
+  inherits(Mont, Red);
 
-  // a flag to know if we're processing previously buffered items, which
-  // may call the _write() callback in the same tick, so that we don't
-  // end up in an overlapped onwrite situation.
-  this.bufferProcessing = false;
+  Mont.prototype.convertTo = function convertTo (num) {
+    return this.imod(num.ushln(this.shift));
+  };
 
-  // the callback that's passed to _write(chunk,cb)
-  this.onwrite = function(er) {
-    onwrite(stream, er);
+  Mont.prototype.convertFrom = function convertFrom (num) {
+    var r = this.imod(num.mul(this.rinv));
+    r.red = null;
+    return r;
   };
 
-  // the callback that the user supplies to write(chunk,encoding,cb)
-  this.writecb = null;
+  Mont.prototype.imul = function imul (a, b) {
+    if (a.isZero() || b.isZero()) {
+      a.words[0] = 0;
+      a.length = 1;
+      return a;
+    }
 
-  // the amount that is being written when _write is called.
-  this.writelen = 0;
+    var t = a.imul(b);
+    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
+    var u = t.isub(c).iushrn(this.shift);
+    var res = u;
 
-  this.buffer = [];
+    if (u.cmp(this.m) >= 0) {
+      res = u.isub(this.m);
+    } else if (u.cmpn(0) < 0) {
+      res = u.iadd(this.m);
+    }
 
-  // number of pending user-supplied write callbacks
-  // this must be 0 before 'finish' can be emitted
-  this.pendingcb = 0;
+    return res._forceRed(this);
+  };
 
-  // emit prefinish if the only thing we're waiting for is _write cbs
-  // This is relevant for synchronous Transform streams
-  this.prefinished = false;
+  Mont.prototype.mul = function mul (a, b) {
+    if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this);
 
-  // True if the error was already emitted and should not be thrown again
-  this.errorEmitted = false;
-}
+    var t = a.mul(b);
+    var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m);
+    var u = t.isub(c).iushrn(this.shift);
+    var res = u;
+    if (u.cmp(this.m) >= 0) {
+      res = u.isub(this.m);
+    } else if (u.cmpn(0) < 0) {
+      res = u.iadd(this.m);
+    }
 
-function Writable(options) {
-  var Duplex = require('./_stream_duplex');
+    return res._forceRed(this);
+  };
 
-  // Writable ctor is applied to Duplexes, though they're not
-  // instanceof Writable, they're instanceof Readable.
-  if (!(this instanceof Writable) && !(this instanceof Duplex))
-    return new Writable(options);
+  Mont.prototype.invm = function invm (a) {
+    // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R
+    var res = this.imod(a._invmp(this.m).mul(this.r2));
+    return res._forceRed(this);
+  };
+})(typeof module === 'undefined' || module, this);
 
-  this._writableState = new WritableState(options, this);
+},{}],82:[function(require,module,exports){
+var r;
 
-  // legacy.
-  this.writable = true;
+module.exports = function rand(len) {
+  if (!r)
+    r = new Rand(null);
+
+  return r.generate(len);
+};
+
+function Rand(rand) {
+  this.rand = rand;
+}
+module.exports.Rand = Rand;
+
+Rand.prototype.generate = function generate(len) {
+  return this._rand(len);
+};
 
-  Stream.call(this);
-}
+// Emulate crypto API using randy
+Rand.prototype._rand = function _rand(n) {
+  if (this.rand.getBytes)
+    return this.rand.getBytes(n);
 
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function() {
-  this.emit('error', new Error('Cannot pipe. Not readable.'));
+  var res = new Uint8Array(n);
+  for (var i = 0; i < res.length; i++)
+    res[i] = this.rand.getByte();
+  return res;
 };
 
+if (typeof self === 'object') {
+  if (self.crypto && self.crypto.getRandomValues) {
+    // Modern browsers
+    Rand.prototype._rand = function _rand(n) {
+      var arr = new Uint8Array(n);
+      self.crypto.getRandomValues(arr);
+      return arr;
+    };
+  } else if (self.msCrypto && self.msCrypto.getRandomValues) {
+    // IE
+    Rand.prototype._rand = function _rand(n) {
+      var arr = new Uint8Array(n);
+      self.msCrypto.getRandomValues(arr);
+      return arr;
+    };
 
-function writeAfterEnd(stream, state, cb) {
-  var er = new Error('write after end');
-  // TODO: defer error events consistently everywhere, not just the cb
-  stream.emit('error', er);
-  process.nextTick(function() {
-    cb(er);
-  });
-}
+  // Safari's WebWorkers do not have `crypto`
+  } else if (typeof window === 'object') {
+    // Old junk
+    Rand.prototype._rand = function() {
+      throw new Error('Not implemented yet');
+    };
+  }
+} else {
+  // Node.js or Web worker with no crypto support
+  try {
+    var crypto = require('crypto');
+    if (typeof crypto.randomBytes !== 'function')
+      throw new Error('Not supported');
 
-// If we get something that is not a buffer, string, null, or undefined,
-// and we're not in objectMode, then that's an error.
-// Otherwise stream chunks are all considered to be of length=1, and the
-// watermarks determine how many objects to keep in the buffer, rather than
-// how many bytes or characters.
-function validChunk(stream, state, chunk, cb) {
-  var valid = true;
-  if (!util.isBuffer(chunk) &&
-      !util.isString(chunk) &&
-      !util.isNullOrUndefined(chunk) &&
-      !state.objectMode) {
-    var er = new TypeError('Invalid non-string/buffer chunk');
-    stream.emit('error', er);
-    process.nextTick(function() {
-      cb(er);
-    });
-    valid = false;
+    Rand.prototype._rand = function _rand(n) {
+      return crypto.randomBytes(n);
+    };
+  } catch (e) {
   }
-  return valid;
 }
 
-Writable.prototype.write = function(chunk, encoding, cb) {
-  var state = this._writableState;
-  var ret = false;
+},{"crypto":3}],83:[function(require,module,exports){
+var basex = require('base-x')
+var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
 
-  if (util.isFunction(encoding)) {
-    cb = encoding;
-    encoding = null;
-  }
+module.exports = basex(ALPHABET)
+
+},{"base-x":35}],84:[function(require,module,exports){
+(function (Buffer){
+'use strict'
 
-  if (util.isBuffer(chunk))
-    encoding = 'buffer';
-  else if (!encoding)
-    encoding = state.defaultEncoding;
+var base58 = require('bs58')
 
-  if (!util.isFunction(cb))
-    cb = function() {};
+module.exports = function (checksumFn) {
+  // Encode a buffer as a base58-check encoded string
+  function encode (payload) {
+    var checksum = checksumFn(payload)
 
-  if (state.ended)
-    writeAfterEnd(this, state, cb);
-  else if (validChunk(this, state, chunk, cb)) {
-    state.pendingcb++;
-    ret = writeOrBuffer(this, state, chunk, encoding, cb);
+    return base58.encode(Buffer.concat([
+      payload,
+      checksum
+    ], payload.length + 4))
   }
 
-  return ret;
-};
+  function decodeRaw (buffer) {
+    var payload = buffer.slice(0, -4)
+    var checksum = buffer.slice(-4)
+    var newChecksum = checksumFn(payload)
 
-Writable.prototype.cork = function() {
-  var state = this._writableState;
+    if (checksum[0] ^ newChecksum[0] |
+        checksum[1] ^ newChecksum[1] |
+        checksum[2] ^ newChecksum[2] |
+        checksum[3] ^ newChecksum[3]) return
 
-  state.corked++;
-};
+    return payload
+  }
 
-Writable.prototype.uncork = function() {
-  var state = this._writableState;
+  // Decode a base58-check encoded string to a buffer, no result if checksum is wrong
+  function decodeUnsafe (string) {
+    var buffer = base58.decodeUnsafe(string)
+    if (!buffer) return
 
-  if (state.corked) {
-    state.corked--;
+    return decodeRaw(buffer)
+  }
 
-    if (!state.writing &&
-        !state.corked &&
-        !state.finished &&
-        !state.bufferProcessing &&
-        state.buffer.length)
-      clearBuffer(this, state);
+  function decode (string) {
+    var buffer = base58.decode(string)
+    var payload = decodeRaw(buffer, checksumFn)
+    if (!payload) throw new Error('Invalid checksum')
+    return payload
   }
-};
 
-function decodeChunk(state, chunk, encoding) {
-  if (!state.objectMode &&
-      state.decodeStrings !== false &&
-      util.isString(chunk)) {
-    chunk = new Buffer(chunk, encoding);
+  return {
+    encode: encode,
+    decode: decode,
+    decodeUnsafe: decodeUnsafe
   }
-  return chunk;
 }
 
-// if we're already writing something, then just put this
-// in the queue, and wait our turn.  Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, chunk, encoding, cb) {
-  chunk = decodeChunk(state, chunk, encoding);
-  if (util.isBuffer(chunk))
-    encoding = 'buffer';
-  var len = state.objectMode ? 1 : chunk.length;
+}).call(this,require("buffer").Buffer)
+},{"bs58":83,"buffer":5}],85:[function(require,module,exports){
+'use strict'
 
-  state.length += len;
+var createHash = require('create-hash')
+var bs58checkBase = require('./base')
 
-  var ret = state.length < state.highWaterMark;
-  // we must ensure that previous needDrain will not be reset to false.
-  if (!ret)
-    state.needDrain = true;
+// SHA256(SHA256(buffer))
+function sha256x2 (buffer) {
+  var tmp = createHash('sha256').update(buffer).digest()
+  return createHash('sha256').update(tmp).digest()
+}
 
-  if (state.writing || state.corked)
-    state.buffer.push(new WriteReq(chunk, encoding, cb));
-  else
-    doWrite(stream, state, false, len, chunk, encoding, cb);
+module.exports = bs58checkBase(sha256x2)
 
-  return ret;
-}
+},{"./base":84,"create-hash":87}],86:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
+var Transform = require('stream').Transform
+var StringDecoder = require('string_decoder').StringDecoder
+var inherits = require('inherits')
 
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
-  state.writelen = len;
-  state.writecb = cb;
-  state.writing = true;
-  state.sync = true;
-  if (writev)
-    stream._writev(chunk, state.onwrite);
-  else
-    stream._write(chunk, encoding, state.onwrite);
-  state.sync = false;
+function CipherBase (hashMode) {
+  Transform.call(this)
+  this.hashMode = typeof hashMode === 'string'
+  if (this.hashMode) {
+    this[hashMode] = this._finalOrDigest
+  } else {
+    this.final = this._finalOrDigest
+  }
+  if (this._final) {
+    this.__final = this._final
+    this._final = null
+  }
+  this._decoder = null
+  this._encoding = null
 }
+inherits(CipherBase, Transform)
 
-function onwriteError(stream, state, sync, er, cb) {
-  if (sync)
-    process.nextTick(function() {
-      state.pendingcb--;
-      cb(er);
-    });
-  else {
-    state.pendingcb--;
-    cb(er);
+CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
+  if (typeof data === 'string') {
+    data = Buffer.from(data, inputEnc)
   }
 
-  stream._writableState.errorEmitted = true;
-  stream.emit('error', er);
-}
+  var outData = this._update(data)
+  if (this.hashMode) return this
 
-function onwriteStateUpdate(state) {
-  state.writing = false;
-  state.writecb = null;
-  state.length -= state.writelen;
-  state.writelen = 0;
-}
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc)
+  }
 
-function onwrite(stream, er) {
-  var state = stream._writableState;
-  var sync = state.sync;
-  var cb = state.writecb;
+  return outData
+}
 
-  onwriteStateUpdate(state);
+CipherBase.prototype.setAutoPadding = function () {}
+CipherBase.prototype.getAuthTag = function () {
+  throw new Error('trying to get auth tag in unsupported state')
+}
 
-  if (er)
-    onwriteError(stream, state, sync, er, cb);
-  else {
-    // Check if we're actually ready to finish, but don't emit yet
-    var finished = needFinish(stream, state);
+CipherBase.prototype.setAuthTag = function () {
+  throw new Error('trying to set auth tag in unsupported state')
+}
 
-    if (!finished &&
-        !state.corked &&
-        !state.bufferProcessing &&
-        state.buffer.length) {
-      clearBuffer(stream, state);
-    }
+CipherBase.prototype.setAAD = function () {
+  throw new Error('trying to set aad in unsupported state')
+}
 
-    if (sync) {
-      process.nextTick(function() {
-        afterWrite(stream, state, finished, cb);
-      });
+CipherBase.prototype._transform = function (data, _, next) {
+  var err
+  try {
+    if (this.hashMode) {
+      this._update(data)
     } else {
-      afterWrite(stream, state, finished, cb);
+      this.push(this._update(data))
     }
+  } catch (e) {
+    err = e
+  } finally {
+    next(err)
   }
 }
+CipherBase.prototype._flush = function (done) {
+  var err
+  try {
+    this.push(this.__final())
+  } catch (e) {
+    err = e
+  }
 
-function afterWrite(stream, state, finished, cb) {
-  if (!finished)
-    onwriteDrain(stream, state);
-  state.pendingcb--;
-  cb();
-  finishMaybe(stream, state);
+  done(err)
 }
-
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
-  if (state.length === 0 && state.needDrain) {
-    state.needDrain = false;
-    stream.emit('drain');
+CipherBase.prototype._finalOrDigest = function (outputEnc) {
+  var outData = this.__final() || Buffer.alloc(0)
+  if (outputEnc) {
+    outData = this._toString(outData, outputEnc, true)
   }
+  return outData
 }
 
+CipherBase.prototype._toString = function (value, enc, fin) {
+  if (!this._decoder) {
+    this._decoder = new StringDecoder(enc)
+    this._encoding = enc
+  }
 
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
-  state.bufferProcessing = true;
+  if (this._encoding !== enc) throw new Error('can\'t switch encodings')
 
-  if (stream._writev && state.buffer.length > 1) {
-    // Fast case, write everything using _writev()
-    var cbs = [];
-    for (var c = 0; c < state.buffer.length; c++)
-      cbs.push(state.buffer[c].callback);
+  var out = this._decoder.write(value)
+  if (fin) {
+    out += this._decoder.end()
+  }
 
-    // count the one we are adding, as well.
-    // TODO(isaacs) clean this up
-    state.pendingcb++;
-    doWrite(stream, state, true, state.length, state.buffer, '', function(err) {
-      for (var i = 0; i < cbs.length; i++) {
-        state.pendingcb--;
-        cbs[i](err);
-      }
-    });
+  return out
+}
 
-    // Clear buffer
-    state.buffer = [];
-  } else {
-    // Slow case, write chunks one-by-one
-    for (var c = 0; c < state.buffer.length; c++) {
-      var entry = state.buffer[c];
-      var chunk = entry.chunk;
-      var encoding = entry.encoding;
-      var cb = entry.callback;
-      var len = state.objectMode ? 1 : chunk.length;
+module.exports = CipherBase
 
-      doWrite(stream, state, false, len, chunk, encoding, cb);
+},{"inherits":121,"safe-buffer":128,"stream":28,"string_decoder":29}],87:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var md5 = require('./md5')
+var RIPEMD160 = require('ripemd160')
+var sha = require('sha.js')
 
-      // if we didn't call the onwrite immediately, then
-      // it means that we need to wait until it does.
-      // also, that means that the chunk and cb are currently
-      // being processed, so move the buffer counter past them.
-      if (state.writing) {
-        c++;
-        break;
-      }
-    }
+var Base = require('cipher-base')
 
-    if (c < state.buffer.length)
-      state.buffer = state.buffer.slice(c);
-    else
-      state.buffer.length = 0;
-  }
+function HashNoConstructor (hash) {
+  Base.call(this, 'digest')
 
-  state.bufferProcessing = false;
+  this._hash = hash
+  this.buffers = []
 }
 
-Writable.prototype._write = function(chunk, encoding, cb) {
-  cb(new Error('not implemented'));
-
-};
-
-Writable.prototype._writev = null;
+inherits(HashNoConstructor, Base)
 
-Writable.prototype.end = function(chunk, encoding, cb) {
-  var state = this._writableState;
+HashNoConstructor.prototype._update = function (data) {
+  this.buffers.push(data)
+}
 
-  if (util.isFunction(chunk)) {
-    cb = chunk;
-    chunk = null;
-    encoding = null;
-  } else if (util.isFunction(encoding)) {
-    cb = encoding;
-    encoding = null;
-  }
+HashNoConstructor.prototype._final = function () {
+  var buf = Buffer.concat(this.buffers)
+  var r = this._hash(buf)
+  this.buffers = null
 
-  if (!util.isNullOrUndefined(chunk))
-    this.write(chunk, encoding);
+  return r
+}
 
-  // .end() fully uncorks
-  if (state.corked) {
-    state.corked = 1;
-    this.uncork();
-  }
+function Hash (hash) {
+  Base.call(this, 'digest')
 
-  // ignore unnecessary end() calls.
-  if (!state.ending && !state.finished)
-    endWritable(this, state, cb);
-};
+  this._hash = hash
+}
 
+inherits(Hash, Base)
 
-function needFinish(stream, state) {
-  return (state.ending &&
-          state.length === 0 &&
-          !state.finished &&
-          !state.writing);
+Hash.prototype._update = function (data) {
+  this._hash.update(data)
 }
 
-function prefinish(stream, state) {
-  if (!state.prefinished) {
-    state.prefinished = true;
-    stream.emit('prefinish');
-  }
+Hash.prototype._final = function () {
+  return this._hash.digest()
 }
 
-function finishMaybe(stream, state) {
-  var need = needFinish(stream, state);
-  if (need) {
-    if (state.pendingcb === 0) {
-      prefinish(stream, state);
-      state.finished = true;
-      stream.emit('finish');
-    } else
-      prefinish(stream, state);
-  }
-  return need;
-}
+module.exports = function createHash (alg) {
+  alg = alg.toLowerCase()
+  if (alg === 'md5') return new HashNoConstructor(md5)
+  if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
 
-function endWritable(stream, state, cb) {
-  state.ending = true;
-  finishMaybe(stream, state);
-  if (cb) {
-    if (state.finished)
-      process.nextTick(cb);
-    else
-      stream.once('finish', cb);
-  }
-  state.ended = true;
+  return new Hash(sha(alg))
 }
 
-}).call(this,require('_process'))
-},{"./_stream_duplex":16,"_process":14,"buffer":7,"core-util-is":21,"inherits":12,"stream":26}],21:[function(require,module,exports){
+}).call(this,require("buffer").Buffer)
+},{"./md5":89,"buffer":5,"cipher-base":86,"inherits":121,"ripemd160":127,"sha.js":130}],88:[function(require,module,exports){
 (function (Buffer){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-function isArray(ar) {
-  return Array.isArray(ar);
-}
-exports.isArray = isArray;
+'use strict'
+var intSize = 4
+var zeroBuffer = new Buffer(intSize)
+zeroBuffer.fill(0)
 
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+var charSize = 8
+var hashSize = 16
 
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
+function toArray (buf) {
+  if ((buf.length % intSize) !== 0) {
+    var len = buf.length + (intSize - (buf.length % intSize))
+    buf = Buffer.concat([buf, zeroBuffer], len)
+  }
 
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+  var arr = new Array(buf.length >>> 2)
+  for (var i = 0, j = 0; i < buf.length; i += intSize, j++) {
+    arr[j] = buf.readInt32LE(i)
+  }
 
-function isNumber(arg) {
-  return typeof arg === 'number';
+  return arr
 }
-exports.isNumber = isNumber;
 
-function isString(arg) {
-  return typeof arg === 'string';
+module.exports = function hash (buf, fn) {
+  var arr = fn(toArray(buf), buf.length * charSize)
+  buf = new Buffer(hashSize)
+  for (var i = 0; i < arr.length; i++) {
+    buf.writeInt32LE(arr[i], i << 2, true)
+  }
+  return buf
 }
-exports.isString = isString;
 
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],89:[function(require,module,exports){
+'use strict'
+/*
+ * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
+ * Digest Algorithm, as defined in RFC 1321.
+ * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for more info.
+ */
 
-function isUndefined(arg) {
-  return arg === void 0;
-}
-exports.isUndefined = isUndefined;
+var makeHash = require('./make-hash')
 
-function isRegExp(re) {
-  return isObject(re) && objectToString(re) === '[object RegExp]';
+/*
+ * Calculate the MD5 of an array of little-endian words, and a bit length
+ */
+function core_md5 (x, len) {
+  /* append padding */
+  x[len >> 5] |= 0x80 << ((len) % 32)
+  x[(((len + 64) >>> 9) << 4) + 14] = len
+
+  var a = 1732584193
+  var b = -271733879
+  var c = -1732584194
+  var d = 271733878
+
+  for (var i = 0; i < x.length; i += 16) {
+    var olda = a
+    var oldb = b
+    var oldc = c
+    var oldd = d
+
+    a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936)
+    d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586)
+    c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819)
+    b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330)
+    a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897)
+    d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426)
+    c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341)
+    b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983)
+    a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416)
+    d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417)
+    c = md5_ff(c, d, a, b, x[i + 10], 17, -42063)
+    b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162)
+    a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682)
+    d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101)
+    c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290)
+    b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329)
+
+    a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510)
+    d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632)
+    c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713)
+    b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302)
+    a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691)
+    d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083)
+    c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335)
+    b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848)
+    a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438)
+    d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690)
+    c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961)
+    b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501)
+    a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467)
+    d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784)
+    c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473)
+    b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734)
+
+    a = md5_hh(a, b, c, d, x[i + 5], 4, -378558)
+    d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463)
+    c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562)
+    b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556)
+    a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060)
+    d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353)
+    c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632)
+    b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640)
+    a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174)
+    d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222)
+    c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979)
+    b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189)
+    a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487)
+    d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835)
+    c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520)
+    b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651)
+
+    a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844)
+    d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415)
+    c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905)
+    b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055)
+    a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571)
+    d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606)
+    c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523)
+    b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799)
+    a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359)
+    d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744)
+    c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380)
+    b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649)
+    a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070)
+    d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379)
+    c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259)
+    b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551)
+
+    a = safe_add(a, olda)
+    b = safe_add(b, oldb)
+    c = safe_add(c, oldc)
+    d = safe_add(d, oldd)
+  }
+
+  return [a, b, c, d]
 }
-exports.isRegExp = isRegExp;
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
+/*
+ * These functions implement the four basic operations the algorithm uses.
+ */
+function md5_cmn (q, a, b, x, s, t) {
+  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)
 }
-exports.isObject = isObject;
 
-function isDate(d) {
-  return isObject(d) && objectToString(d) === '[object Date]';
+function md5_ff (a, b, c, d, x, s, t) {
+  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t)
 }
-exports.isDate = isDate;
 
-function isError(e) {
-  return isObject(e) &&
-      (objectToString(e) === '[object Error]' || e instanceof Error);
+function md5_gg (a, b, c, d, x, s, t) {
+  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t)
 }
-exports.isError = isError;
 
-function isFunction(arg) {
-  return typeof arg === 'function';
+function md5_hh (a, b, c, d, x, s, t) {
+  return md5_cmn(b ^ c ^ d, a, b, x, s, t)
 }
-exports.isFunction = isFunction;
 
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
+function md5_ii (a, b, c, d, x, s, t) {
+  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t)
 }
-exports.isPrimitive = isPrimitive;
 
-function isBuffer(arg) {
-  return Buffer.isBuffer(arg);
+/*
+ * Add integers, wrapping at 2^32. This uses 16-bit operations internally
+ * to work around bugs in some JS interpreters.
+ */
+function safe_add (x, y) {
+  var lsw = (x & 0xFFFF) + (y & 0xFFFF)
+  var msw = (x >> 16) + (y >> 16) + (lsw >> 16)
+  return (msw << 16) | (lsw & 0xFFFF)
 }
-exports.isBuffer = isBuffer;
 
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
+/*
+ * Bitwise rotate a 32-bit number to the left.
+ */
+function bit_rol (num, cnt) {
+  return (num << cnt) | (num >>> (32 - cnt))
 }
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],22:[function(require,module,exports){
-module.exports = require("./lib/_stream_passthrough.js")
-
-},{"./lib/_stream_passthrough.js":17}],23:[function(require,module,exports){
-exports = module.exports = require('./lib/_stream_readable.js');
-exports.Stream = require('stream');
-exports.Readable = exports;
-exports.Writable = require('./lib/_stream_writable.js');
-exports.Duplex = require('./lib/_stream_duplex.js');
-exports.Transform = require('./lib/_stream_transform.js');
-exports.PassThrough = require('./lib/_stream_passthrough.js');
-
-},{"./lib/_stream_duplex.js":16,"./lib/_stream_passthrough.js":17,"./lib/_stream_readable.js":18,"./lib/_stream_transform.js":19,"./lib/_stream_writable.js":20,"stream":26}],24:[function(require,module,exports){
-module.exports = require("./lib/_stream_transform.js")
-
-},{"./lib/_stream_transform.js":19}],25:[function(require,module,exports){
-module.exports = require("./lib/_stream_writable.js")
-
-},{"./lib/_stream_writable.js":20}],26:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-module.exports = Stream;
-
-var EE = require('events').EventEmitter;
-var inherits = require('inherits');
-
-inherits(Stream, EE);
-Stream.Readable = require('readable-stream/readable.js');
-Stream.Writable = require('readable-stream/writable.js');
-Stream.Duplex = require('readable-stream/duplex.js');
-Stream.Transform = require('readable-stream/transform.js');
-Stream.PassThrough = require('readable-stream/passthrough.js');
 
-// Backwards-compat with node 0.4.x
-Stream.Stream = Stream;
-
-
-
-// old-style streams.  Note that the pipe method (the only relevant
-// part of this class) is overridden in the Readable class.
-
-function Stream() {
-  EE.call(this);
+module.exports = function md5 (buf) {
+  return makeHash(buf, core_md5)
 }
 
-Stream.prototype.pipe = function(dest, options) {
-  var source = this;
+},{"./make-hash":88}],90:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Legacy = require('./legacy')
+var Base = require('cipher-base')
+var Buffer = require('safe-buffer').Buffer
+var md5 = require('create-hash/md5')
+var RIPEMD160 = require('ripemd160')
 
-  function ondata(chunk) {
-    if (dest.writable) {
-      if (false === dest.write(chunk) && source.pause) {
-        source.pause();
-      }
-    }
-  }
+var sha = require('sha.js')
 
-  source.on('data', ondata);
+var ZEROS = Buffer.alloc(128)
 
-  function ondrain() {
-    if (source.readable && source.resume) {
-      source.resume();
-    }
+function Hmac (alg, key) {
+  Base.call(this, 'digest')
+  if (typeof key === 'string') {
+    key = Buffer.from(key)
   }
 
-  dest.on('drain', ondrain);
+  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
 
-  // If the 'end' option is not supplied, dest.end() will be called when
-  // source gets the 'end' or 'close' events.  Only dest.end() once.
-  if (!dest._isStdio && (!options || options.end !== false)) {
-    source.on('end', onend);
-    source.on('close', onclose);
+  this._alg = alg
+  this._key = key
+  if (key.length > blocksize) {
+    var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+    key = hash.update(key).digest()
+  } else if (key.length < blocksize) {
+    key = Buffer.concat([key, ZEROS], blocksize)
   }
 
-  var didOnEnd = false;
-  function onend() {
-    if (didOnEnd) return;
-    didOnEnd = true;
+  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+  var opad = this._opad = Buffer.allocUnsafe(blocksize)
 
-    dest.end();
+  for (var i = 0; i < blocksize; i++) {
+    ipad[i] = key[i] ^ 0x36
+    opad[i] = key[i] ^ 0x5C
   }
+  this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg)
+  this._hash.update(ipad)
+}
 
+inherits(Hmac, Base)
 
-  function onclose() {
-    if (didOnEnd) return;
-    didOnEnd = true;
+Hmac.prototype._update = function (data) {
+  this._hash.update(data)
+}
 
-    if (typeof dest.destroy === 'function') dest.destroy();
-  }
+Hmac.prototype._final = function () {
+  var h = this._hash.digest()
+  var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg)
+  return hash.update(this._opad).update(h).digest()
+}
 
-  // don't leave dangling pipes when there are errors.
-  function onerror(er) {
-    cleanup();
-    if (EE.listenerCount(this, 'error') === 0) {
-      throw er; // Unhandled stream error in pipe.
-    }
+module.exports = function createHmac (alg, key) {
+  alg = alg.toLowerCase()
+  if (alg === 'rmd160' || alg === 'ripemd160') {
+    return new Hmac('rmd160', key)
   }
+  if (alg === 'md5') {
+    return new Legacy(md5, key)
+  }
+  return new Hmac(alg, key)
+}
 
-  source.on('error', onerror);
-  dest.on('error', onerror);
+},{"./legacy":91,"cipher-base":86,"create-hash/md5":89,"inherits":121,"ripemd160":127,"safe-buffer":128,"sha.js":130}],91:[function(require,module,exports){
+'use strict'
+var inherits = require('inherits')
+var Buffer = require('safe-buffer').Buffer
 
-  // remove all the event listeners that were added.
-  function cleanup() {
-    source.removeListener('data', ondata);
-    dest.removeListener('drain', ondrain);
+var Base = require('cipher-base')
 
-    source.removeListener('end', onend);
-    source.removeListener('close', onclose);
+var ZEROS = Buffer.alloc(128)
+var blocksize = 64
 
-    source.removeListener('error', onerror);
-    dest.removeListener('error', onerror);
+function Hmac (alg, key) {
+  Base.call(this, 'digest')
+  if (typeof key === 'string') {
+    key = Buffer.from(key)
+  }
 
-    source.removeListener('end', cleanup);
-    source.removeListener('close', cleanup);
+  this._alg = alg
+  this._key = key
 
-    dest.removeListener('close', cleanup);
+  if (key.length > blocksize) {
+    key = alg(key)
+  } else if (key.length < blocksize) {
+    key = Buffer.concat([key, ZEROS], blocksize)
   }
 
-  source.on('end', cleanup);
-  source.on('close', cleanup);
+  var ipad = this._ipad = Buffer.allocUnsafe(blocksize)
+  var opad = this._opad = Buffer.allocUnsafe(blocksize)
 
-  dest.on('close', cleanup);
+  for (var i = 0; i < blocksize; i++) {
+    ipad[i] = key[i] ^ 0x36
+    opad[i] = key[i] ^ 0x5C
+  }
 
-  dest.emit('pipe', source);
+  this._hash = [ipad]
+}
 
-  // Allow for unix-like usage: A.pipe(B).pipe(C)
-  return dest;
-};
+inherits(Hmac, Base)
 
-},{"events":11,"inherits":12,"readable-stream/duplex.js":15,"readable-stream/passthrough.js":22,"readable-stream/readable.js":23,"readable-stream/transform.js":24,"readable-stream/writable.js":25}],27:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
+Hmac.prototype._update = function (data) {
+  this._hash.push(data)
+}
 
-var Buffer = require('buffer').Buffer;
+Hmac.prototype._final = function () {
+  var h = this._alg(Buffer.concat(this._hash))
+  return this._alg(Buffer.concat([this._opad, h]))
+}
+module.exports = Hmac
 
-var isBufferEncoding = Buffer.isEncoding
-  || function(encoding) {
-       switch (encoding && encoding.toLowerCase()) {
-         case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true;
-         default: return false;
-       }
-     }
+},{"cipher-base":86,"inherits":121,"safe-buffer":128}],92:[function(require,module,exports){
+var assert = require('assert')
+var BigInteger = require('bigi')
 
+var Point = require('./point')
 
-function assertEncoding(encoding) {
-  if (encoding && !isBufferEncoding(encoding)) {
-    throw new Error('Unknown encoding: ' + encoding);
-  }
+function Curve (p, a, b, Gx, Gy, n, h) {
+  this.p = p
+  this.a = a
+  this.b = b
+  this.G = Point.fromAffine(this, Gx, Gy)
+  this.n = n
+  this.h = h
+
+  this.infinity = new Point(this, null, null, BigInteger.ZERO)
+
+  // result caching
+  this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
+
+  // determine size of p in bytes
+  this.pLength = Math.floor((this.p.bitLength() + 7) / 8)
 }
 
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters. CESU-8 is handled as part of the UTF-8 encoding.
-//
-// @TODO Handling all encodings inside a single object makes it very difficult
-// to reason about this code, so it should be split up in the future.
-// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code
-// points as used by CESU-8.
-var StringDecoder = exports.StringDecoder = function(encoding) {
-  this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, '');
-  assertEncoding(encoding);
-  switch (this.encoding) {
-    case 'utf8':
-      // CESU-8 represents each of Surrogate Pair by 3-bytes
-      this.surrogateSize = 3;
-      break;
-    case 'ucs2':
-    case 'utf16le':
-      // UTF-16 represents each of Surrogate Pair by 2-bytes
-      this.surrogateSize = 2;
-      this.detectIncompleteChar = utf16DetectIncompleteChar;
-      break;
-    case 'base64':
-      // Base-64 stores 3 bytes in 4 chars, and pads the remainder.
-      this.surrogateSize = 3;
-      this.detectIncompleteChar = base64DetectIncompleteChar;
-      break;
-    default:
-      this.write = passThroughWrite;
-      return;
-  }
+Curve.prototype.pointFromX = function (isOdd, x) {
+  var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p)
+  var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves
 
-  // Enough space to store all bytes of a single character. UTF-8 needs 4
-  // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate).
-  this.charBuffer = new Buffer(6);
-  // Number of bytes received for the current incomplete multi-byte character.
-  this.charReceived = 0;
-  // Number of bytes expected for the current incomplete multi-byte character.
-  this.charLength = 0;
-};
+  var y = beta
+  if (beta.isEven() ^ !isOdd) {
+    y = this.p.subtract(y) // -y % p
+  }
 
+  return Point.fromAffine(this, x, y)
+}
 
-// write decodes the given buffer and returns it as JS string that is
-// guaranteed to not contain any partial multi-byte characters. Any partial
-// character found at the end of the buffer is buffered up, and will be
-// returned when calling write again with the remaining bytes.
-//
-// Note: Converting a Buffer containing an orphan surrogate to a String
-// currently works, but converting a String to a Buffer (via `new Buffer`, or
-// Buffer#write) will replace incomplete surrogates with the unicode
-// replacement character. See https://codereview.chromium.org/121173009/ .
-StringDecoder.prototype.write = function(buffer) {
-  var charStr = '';
-  // if our last write ended with an incomplete multibyte character
-  while (this.charLength) {
-    // determine how many remaining bytes this buffer has to offer for this char
-    var available = (buffer.length >= this.charLength - this.charReceived) ?
-        this.charLength - this.charReceived :
-        buffer.length;
+Curve.prototype.isInfinity = function (Q) {
+  if (Q === this.infinity) return true
 
-    // add the new bytes to the char buffer
-    buffer.copy(this.charBuffer, this.charReceived, 0, available);
-    this.charReceived += available;
+  return Q.z.signum() === 0 && Q.y.signum() !== 0
+}
 
-    if (this.charReceived < this.charLength) {
-      // still not enough chars in this buffer? wait for more ...
-      return '';
-    }
+Curve.prototype.isOnCurve = function (Q) {
+  if (this.isInfinity(Q)) return true
 
-    // remove bytes belonging to the current character from the buffer
-    buffer = buffer.slice(available, buffer.length);
+  var x = Q.affineX
+  var y = Q.affineY
+  var a = this.a
+  var b = this.b
+  var p = this.p
 
-    // get the character that was split
-    charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding);
+  // Check that xQ and yQ are integers in the interval [0, p - 1]
+  if (x.signum() < 0 || x.compareTo(p) >= 0) return false
+  if (y.signum() < 0 || y.compareTo(p) >= 0) return false
 
-    // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-    var charCode = charStr.charCodeAt(charStr.length - 1);
-    if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-      this.charLength += this.surrogateSize;
-      charStr = '';
-      continue;
-    }
-    this.charReceived = this.charLength = 0;
+  // and check that y^2 = x^3 + ax + b (mod p)
+  var lhs = y.square().mod(p)
+  var rhs = x.pow(3).add(a.multiply(x)).add(b).mod(p)
+  return lhs.equals(rhs)
+}
 
-    // if there are no more bytes in this buffer, just emit our char
-    if (buffer.length === 0) {
-      return charStr;
-    }
-    break;
-  }
+/**
+ * Validate an elliptic curve point.
+ *
+ * See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
+ */
+Curve.prototype.validate = function (Q) {
+  // Check Q != O
+  assert(!this.isInfinity(Q), 'Point is at infinity')
+  assert(this.isOnCurve(Q), 'Point is not on the curve')
 
-  // determine and set charLength / charReceived
-  this.detectIncompleteChar(buffer);
+  // Check nQ = O (where Q is a scalar multiple of G)
+  var nQ = Q.multiply(this.n)
+  assert(this.isInfinity(nQ), 'Point is not a scalar multiple of G')
 
-  var end = buffer.length;
-  if (this.charLength) {
-    // buffer the incomplete character bytes we got
-    buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end);
-    end -= this.charReceived;
-  }
+  return true
+}
 
-  charStr += buffer.toString(this.encoding, 0, end);
+module.exports = Curve
 
-  var end = charStr.length - 1;
-  var charCode = charStr.charCodeAt(end);
-  // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character
-  if (charCode >= 0xD800 && charCode <= 0xDBFF) {
-    var size = this.surrogateSize;
-    this.charLength += size;
-    this.charReceived += size;
-    this.charBuffer.copy(this.charBuffer, size, 0, size);
-    buffer.copy(this.charBuffer, 0, 0, size);
-    return charStr.substring(0, end);
+},{"./point":96,"assert":1,"bigi":39}],93:[function(require,module,exports){
+module.exports={
+  "secp128r1": {
+    "p": "fffffffdffffffffffffffffffffffff",
+    "a": "fffffffdfffffffffffffffffffffffc",
+    "b": "e87579c11079f43dd824993c2cee5ed3",
+    "n": "fffffffe0000000075a30d1b9038a115",
+    "h": "01",
+    "Gx": "161ff7528b899b2d0c28607ca52c5b86",
+    "Gy": "cf5ac8395bafeb13c02da292dded7a83"
+  },
+  "secp160k1": {
+    "p": "fffffffffffffffffffffffffffffffeffffac73",
+    "a": "00",
+    "b": "07",
+    "n": "0100000000000000000001b8fa16dfab9aca16b6b3",
+    "h": "01",
+    "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb",
+    "Gy": "938cf935318fdced6bc28286531733c3f03c4fee"
+  },
+  "secp160r1": {
+    "p": "ffffffffffffffffffffffffffffffff7fffffff",
+    "a": "ffffffffffffffffffffffffffffffff7ffffffc",
+    "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45",
+    "n": "0100000000000000000001f4c8f927aed3ca752257",
+    "h": "01",
+    "Gx": "4a96b5688ef573284664698968c38bb913cbfc82",
+    "Gy": "23a628553168947d59dcc912042351377ac5fb32"
+  },
+  "secp192k1": {
+    "p": "fffffffffffffffffffffffffffffffffffffffeffffee37",
+    "a": "00",
+    "b": "03",
+    "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d",
+    "h": "01",
+    "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d",
+    "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d"
+  },
+  "secp192r1": {
+    "p": "fffffffffffffffffffffffffffffffeffffffffffffffff",
+    "a": "fffffffffffffffffffffffffffffffefffffffffffffffc",
+    "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
+    "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831",
+    "h": "01",
+    "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
+    "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811"
+  },
+  "secp256k1": {
+    "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
+    "a": "00",
+    "b": "07",
+    "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
+    "h": "01",
+    "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
+    "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
+  },
+  "secp256r1": {
+    "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
+    "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
+    "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
+    "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
+    "h": "01",
+    "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
+    "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"
   }
+}
 
-  // or just emit the charStr
-  return charStr;
-};
+},{}],94:[function(require,module,exports){
+var Point = require('./point')
+var Curve = require('./curve')
 
-// detectIncompleteChar determines if there is an incomplete UTF-8 character at
-// the end of the given buffer. If so, it sets this.charLength to the byte
-// length that character, and sets this.charReceived to the number of bytes
-// that are available for this character.
-StringDecoder.prototype.detectIncompleteChar = function(buffer) {
-  // determine how many bytes we have to check at the end of this buffer
-  var i = (buffer.length >= 3) ? 3 : buffer.length;
+var getCurveByName = require('./names')
 
-  // Figure out if one of the last i bytes of our buffer announces an
-  // incomplete char.
-  for (; i > 0; i--) {
-    var c = buffer[buffer.length - i];
+module.exports = {
+  Curve: Curve,
+  Point: Point,
+  getCurveByName: getCurveByName
+}
 
-    // See http://en.wikipedia.org/wiki/UTF-8#Description
+},{"./curve":92,"./names":95,"./point":96}],95:[function(require,module,exports){
+var BigInteger = require('bigi')
 
-    // 110XXXXX
-    if (i == 1 && c >> 5 == 0x06) {
-      this.charLength = 2;
-      break;
-    }
+var curves = require('./curves.json')
+var Curve = require('./curve')
 
-    // 1110XXXX
-    if (i <= 2 && c >> 4 == 0x0E) {
-      this.charLength = 3;
-      break;
-    }
+function getCurveByName (name) {
+  var curve = curves[name]
+  if (!curve) return null
 
-    // 11110XXX
-    if (i <= 3 && c >> 3 == 0x1E) {
-      this.charLength = 4;
-      break;
-    }
-  }
-  this.charReceived = i;
-};
+  var p = new BigInteger(curve.p, 16)
+  var a = new BigInteger(curve.a, 16)
+  var b = new BigInteger(curve.b, 16)
+  var n = new BigInteger(curve.n, 16)
+  var h = new BigInteger(curve.h, 16)
+  var Gx = new BigInteger(curve.Gx, 16)
+  var Gy = new BigInteger(curve.Gy, 16)
 
-StringDecoder.prototype.end = function(buffer) {
-  var res = '';
-  if (buffer && buffer.length)
-    res = this.write(buffer);
+  return new Curve(p, a, b, Gx, Gy, n, h)
+}
 
-  if (this.charReceived) {
-    var cr = this.charReceived;
-    var buf = this.charBuffer;
-    var enc = this.encoding;
-    res += buf.slice(0, cr).toString(enc);
-  }
+module.exports = getCurveByName
 
-  return res;
-};
+},{"./curve":92,"./curves.json":93,"bigi":39}],96:[function(require,module,exports){
+(function (Buffer){
+var assert = require('assert')
+var BigInteger = require('bigi')
 
-function passThroughWrite(buffer) {
-  return buffer.toString(this.encoding);
-}
+var THREE = BigInteger.valueOf(3)
 
-function utf16DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 2;
-  this.charLength = this.charReceived ? 2 : 0;
-}
+function Point (curve, x, y, z) {
+  assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
 
-function base64DetectIncompleteChar(buffer) {
-  this.charReceived = buffer.length % 3;
-  this.charLength = this.charReceived ? 3 : 0;
-}
+  this.curve = curve
+  this.x = x
+  this.y = y
+  this.z = z
+  this._zInv = null
 
-},{"buffer":7}],28:[function(require,module,exports){
-module.exports = function isBuffer(arg) {
-  return arg && typeof arg === 'object'
-    && typeof arg.copy === 'function'
-    && typeof arg.fill === 'function'
-    && typeof arg.readUInt8 === 'function';
+  this.compressed = true
 }
-},{}],29:[function(require,module,exports){
-(function (process,global){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-var formatRegExp = /%[sdj%]/g;
-exports.format = function(f) {
-  if (!isString(f)) {
-    var objects = [];
-    for (var i = 0; i < arguments.length; i++) {
-      objects.push(inspect(arguments[i]));
+Object.defineProperty(Point.prototype, 'zInv', {
+  get: function () {
+    if (this._zInv === null) {
+      this._zInv = this.z.modInverse(this.curve.p)
     }
-    return objects.join(' ');
-  }
 
-  var i = 1;
-  var args = arguments;
-  var len = args.length;
-  var str = String(f).replace(formatRegExp, function(x) {
-    if (x === '%%') return '%';
-    if (i >= len) return x;
-    switch (x) {
-      case '%s': return String(args[i++]);
-      case '%d': return Number(args[i++]);
-      case '%j':
-        try {
-          return JSON.stringify(args[i++]);
-        } catch (_) {
-          return '[Circular]';
-        }
-      default:
-        return x;
-    }
-  });
-  for (var x = args[i]; i < len; x = args[++i]) {
-    if (isNull(x) || !isObject(x)) {
-      str += ' ' + x;
-    } else {
-      str += ' ' + inspect(x);
-    }
+    return this._zInv
   }
-  return str;
-};
-
+})
 
-// Mark that a method should not be used.
-// Returns a modified function which warns once by default.
-// If --no-deprecation is set, then it is a no-op.
-exports.deprecate = function(fn, msg) {
-  // Allow for deprecating things in the process of starting up.
-  if (isUndefined(global.process)) {
-    return function() {
-      return exports.deprecate(fn, msg).apply(this, arguments);
-    };
+Object.defineProperty(Point.prototype, 'affineX', {
+  get: function () {
+    return this.x.multiply(this.zInv).mod(this.curve.p)
   }
+})
 
-  if (process.noDeprecation === true) {
-    return fn;
+Object.defineProperty(Point.prototype, 'affineY', {
+  get: function () {
+    return this.y.multiply(this.zInv).mod(this.curve.p)
   }
+})
 
-  var warned = false;
-  function deprecated() {
-    if (!warned) {
-      if (process.throwDeprecation) {
-        throw new Error(msg);
-      } else if (process.traceDeprecation) {
-        console.trace(msg);
-      } else {
-        console.error(msg);
-      }
-      warned = true;
-    }
-    return fn.apply(this, arguments);
-  }
+Point.fromAffine = function (curve, x, y) {
+  return new Point(curve, x, y, BigInteger.ONE)
+}
+
+Point.prototype.equals = function (other) {
+  if (other === this) return true
+  if (this.curve.isInfinity(this)) return this.curve.isInfinity(other)
+  if (this.curve.isInfinity(other)) return this.curve.isInfinity(this)
+
+  // u = Y2 * Z1 - Y1 * Z2
+  var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+
+  if (u.signum() !== 0) return false
+
+  // v = X2 * Z1 - X1 * Z2
+  var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
 
-  return deprecated;
-};
+  return v.signum() === 0
+}
 
+Point.prototype.negate = function () {
+  var y = this.curve.p.subtract(this.y)
 
-var debugs = {};
-var debugEnviron;
-exports.debuglog = function(set) {
-  if (isUndefined(debugEnviron))
-    debugEnviron = process.env.NODE_DEBUG || '';
-  set = set.toUpperCase();
-  if (!debugs[set]) {
-    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
-      var pid = process.pid;
-      debugs[set] = function() {
-        var msg = exports.format.apply(exports, arguments);
-        console.error('%s %d: %s', set, pid, msg);
-      };
-    } else {
-      debugs[set] = function() {};
+  return new Point(this.curve, this.x, y, this.z)
+}
+
+Point.prototype.add = function (b) {
+  if (this.curve.isInfinity(this)) return b
+  if (this.curve.isInfinity(b)) return this
+
+  var x1 = this.x
+  var y1 = this.y
+  var x2 = b.x
+  var y2 = b.y
+
+  // u = Y2 * Z1 - Y1 * Z2
+  var u = y2.multiply(this.z).subtract(y1.multiply(b.z)).mod(this.curve.p)
+  // v = X2 * Z1 - X1 * Z2
+  var v = x2.multiply(this.z).subtract(x1.multiply(b.z)).mod(this.curve.p)
+
+  if (v.signum() === 0) {
+    if (u.signum() === 0) {
+      return this.twice() // this == b, so double
     }
+
+    return this.curve.infinity // this = -b, so infinity
   }
-  return debugs[set];
-};
 
+  var v2 = v.square()
+  var v3 = v2.multiply(v)
+  var x1v2 = x1.multiply(v2)
+  var zu2 = u.square().multiply(this.z)
 
-/**
- * Echos the value of a value. Trys to print the value out
- * in the best way possible given the different types.
- *
- * @param {Object} obj The object to print out.
- * @param {Object} opts Optional options object that alters the output.
- */
-/* legacy: obj, showHidden, depth, colors*/
-function inspect(obj, opts) {
-  // default options
-  var ctx = {
-    seen: [],
-    stylize: stylizeNoColor
-  };
-  // legacy...
-  if (arguments.length >= 3) ctx.depth = arguments[2];
-  if (arguments.length >= 4) ctx.colors = arguments[3];
-  if (isBoolean(opts)) {
-    // legacy...
-    ctx.showHidden = opts;
-  } else if (opts) {
-    // got an "options" object
-    exports._extend(ctx, opts);
-  }
-  // set default options
-  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
-  if (isUndefined(ctx.depth)) ctx.depth = 2;
-  if (isUndefined(ctx.colors)) ctx.colors = false;
-  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
-  if (ctx.colors) ctx.stylize = stylizeWithColor;
-  return formatValue(ctx, obj, ctx.depth);
-}
-exports.inspect = inspect;
+  // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
+  var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p)
+  // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
+  var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p)
+  // z3 = v^3 * z1 * z2
+  var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p)
 
+  return new Point(this.curve, x3, y3, z3)
+}
 
-// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
-inspect.colors = {
-  'bold' : [1, 22],
-  'italic' : [3, 23],
-  'underline' : [4, 24],
-  'inverse' : [7, 27],
-  'white' : [37, 39],
-  'grey' : [90, 39],
-  'black' : [30, 39],
-  'blue' : [34, 39],
-  'cyan' : [36, 39],
-  'green' : [32, 39],
-  'magenta' : [35, 39],
-  'red' : [31, 39],
-  'yellow' : [33, 39]
-};
+Point.prototype.twice = function () {
+  if (this.curve.isInfinity(this)) return this
+  if (this.y.signum() === 0) return this.curve.infinity
 
-// Don't use 'blue' not visible on cmd.exe
-inspect.styles = {
-  'special': 'cyan',
-  'number': 'yellow',
-  'boolean': 'yellow',
-  'undefined': 'grey',
-  'null': 'bold',
-  'string': 'green',
-  'date': 'magenta',
-  // "name": intentionally not styling
-  'regexp': 'red'
-};
+  var x1 = this.x
+  var y1 = this.y
 
+  var y1z1 = y1.multiply(this.z).mod(this.curve.p)
+  var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
+  var a = this.curve.a
 
-function stylizeWithColor(str, styleType) {
-  var style = inspect.styles[styleType];
+  // w = 3 * x1^2 + a * z1^2
+  var w = x1.square().multiply(THREE)
 
-  if (style) {
-    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
-           '\u001b[' + inspect.colors[style][1] + 'm';
-  } else {
-    return str;
+  if (a.signum() !== 0) {
+    w = w.add(this.z.square().multiply(a))
   }
-}
 
+  w = w.mod(this.curve.p)
+  // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
+  var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
+  // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
+  var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
+  // z3 = 8 * (y1 * z1)^3
+  var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
 
-function stylizeNoColor(str, styleType) {
-  return str;
+  return new Point(this.curve, x3, y3, z3)
 }
 
+// Simple NAF (Non-Adjacent Form) multiplication algorithm
+// TODO: modularize the multiplication algorithm
+Point.prototype.multiply = function (k) {
+  if (this.curve.isInfinity(this)) return this
+  if (k.signum() === 0) return this.curve.infinity
 
-function arrayToHash(array) {
-  var hash = {};
+  var e = k
+  var h = e.multiply(THREE)
 
-  array.forEach(function(val, idx) {
-    hash[val] = true;
-  });
+  var neg = this.negate()
+  var R = this
 
-  return hash;
-}
+  for (var i = h.bitLength() - 2; i > 0; --i) {
+    var hBit = h.testBit(i)
+    var eBit = e.testBit(i)
 
+    R = R.twice()
 
-function formatValue(ctx, value, recurseTimes) {
-  // Provide a hook for user-specified inspect functions.
-  // Check that value is an object with an inspect function on it
-  if (ctx.customInspect &&
-      value &&
-      isFunction(value.inspect) &&
-      // Filter out the util module, it's inspect function is special
-      value.inspect !== exports.inspect &&
-      // Also filter out any prototype objects using the circular check.
-      !(value.constructor && value.constructor.prototype === value)) {
-    var ret = value.inspect(recurseTimes, ctx);
-    if (!isString(ret)) {
-      ret = formatValue(ctx, ret, recurseTimes);
+    if (hBit !== eBit) {
+      R = R.add(hBit ? this : neg)
     }
-    return ret;
   }
 
-  // Primitive types cannot have properties
-  var primitive = formatPrimitive(ctx, value);
-  if (primitive) {
-    return primitive;
-  }
+  return R
+}
 
-  // Look up the keys of the object.
-  var keys = Object.keys(value);
-  var visibleKeys = arrayToHash(keys);
+// Compute this*j + x*k (simultaneous multiplication)
+Point.prototype.multiplyTwo = function (j, x, k) {
+  var i = Math.max(j.bitLength(), k.bitLength()) - 1
+  var R = this.curve.infinity
+  var both = this.add(x)
 
-  if (ctx.showHidden) {
-    keys = Object.getOwnPropertyNames(value);
-  }
+  while (i >= 0) {
+    var jBit = j.testBit(i)
+    var kBit = k.testBit(i)
 
-  // IE doesn't make error fields non-enumerable
-  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
-  if (isError(value)
-      && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
-    return formatError(value);
-  }
+    R = R.twice()
 
-  // Some type of object without properties can be shortcutted.
-  if (keys.length === 0) {
-    if (isFunction(value)) {
-      var name = value.name ? ': ' + value.name : '';
-      return ctx.stylize('[Function' + name + ']', 'special');
-    }
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    }
-    if (isDate(value)) {
-      return ctx.stylize(Date.prototype.toString.call(value), 'date');
-    }
-    if (isError(value)) {
-      return formatError(value);
+    if (jBit) {
+      if (kBit) {
+        R = R.add(both)
+      } else {
+        R = R.add(this)
+      }
+    } else if (kBit) {
+      R = R.add(x)
     }
+    --i
   }
 
-  var base = '', array = false, braces = ['{', '}'];
+  return R
+}
 
-  // Make Array say that they are Array
-  if (isArray(value)) {
-    array = true;
-    braces = ['[', ']'];
-  }
+Point.prototype.getEncoded = function (compressed) {
+  if (compressed == null) compressed = this.compressed
+  if (this.curve.isInfinity(this)) return new Buffer('00', 'hex') // Infinity point encoded is simply '00'
 
-  // Make functions say that they are functions
-  if (isFunction(value)) {
-    var n = value.name ? ': ' + value.name : '';
-    base = ' [Function' + n + ']';
-  }
+  var x = this.affineX
+  var y = this.affineY
+  var byteLength = this.curve.pLength
+  var buffer
 
-  // Make RegExps say that they are RegExps
-  if (isRegExp(value)) {
-    base = ' ' + RegExp.prototype.toString.call(value);
-  }
+  // 0x02/0x03 | X
+  if (compressed) {
+    buffer = new Buffer(1 + byteLength)
+    buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
 
-  // Make dates with properties first say the date
-  if (isDate(value)) {
-    base = ' ' + Date.prototype.toUTCString.call(value);
-  }
+  // 0x04 | X | Y
+  } else {
+    buffer = new Buffer(1 + byteLength + byteLength)
+    buffer.writeUInt8(0x04, 0)
 
-  // Make error with message first say the error
-  if (isError(value)) {
-    base = ' ' + formatError(value);
+    y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
   }
 
-  if (keys.length === 0 && (!array || value.length == 0)) {
-    return braces[0] + base + braces[1];
-  }
+  x.toBuffer(byteLength).copy(buffer, 1)
 
-  if (recurseTimes < 0) {
-    if (isRegExp(value)) {
-      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
-    } else {
-      return ctx.stylize('[Object]', 'special');
-    }
-  }
+  return buffer
+}
 
-  ctx.seen.push(value);
+Point.decodeFrom = function (curve, buffer) {
+  var type = buffer.readUInt8(0)
+  var compressed = (type !== 4)
 
-  var output;
-  if (array) {
-    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
+  var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
+  var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+
+  var Q
+  if (compressed) {
+    assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
+    assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+
+    var isOdd = (type === 0x03)
+    Q = curve.pointFromX(isOdd, x)
   } else {
-    output = keys.map(function(key) {
-      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
-    });
-  }
+    assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
 
-  ctx.seen.pop();
+    var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
+    Q = Point.fromAffine(curve, x, y)
+  }
 
-  return reduceToSingleString(output, base, braces);
+  Q.compressed = compressed
+  return Q
 }
 
+Point.prototype.toString = function () {
+  if (this.curve.isInfinity(this)) return '(INFINITY)'
 
-function formatPrimitive(ctx, value) {
-  if (isUndefined(value))
-    return ctx.stylize('undefined', 'undefined');
-  if (isString(value)) {
-    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
-                                             .replace(/'/g, "\\'")
-                                             .replace(/\\"/g, '"') + '\'';
-    return ctx.stylize(simple, 'string');
-  }
-  if (isNumber(value))
-    return ctx.stylize('' + value, 'number');
-  if (isBoolean(value))
-    return ctx.stylize('' + value, 'boolean');
-  // For some reason typeof null is "object", so special case here.
-  if (isNull(value))
-    return ctx.stylize('null', 'null');
+  return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
 }
 
+module.exports = Point
 
-function formatError(value) {
-  return '[' + Error.prototype.toString.call(value) + ']';
-}
+}).call(this,require("buffer").Buffer)
+},{"assert":1,"bigi":39,"buffer":5}],97:[function(require,module,exports){
+'use strict';
 
+var elliptic = exports;
 
-function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
-  var output = [];
-  for (var i = 0, l = value.length; i < l; ++i) {
-    if (hasOwnProperty(value, String(i))) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          String(i), true));
-    } else {
-      output.push('');
-    }
-  }
-  keys.forEach(function(key) {
-    if (!key.match(/^\d+$/)) {
-      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
-          key, true));
-    }
-  });
-  return output;
-}
+elliptic.version = require('../package.json').version;
+elliptic.utils = require('./elliptic/utils');
+elliptic.rand = require('brorand');
+elliptic.curve = require('./elliptic/curve');
+elliptic.curves = require('./elliptic/curves');
 
+// Protocols
+elliptic.ec = require('./elliptic/ec');
+elliptic.eddsa = require('./elliptic/eddsa');
 
-function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
-  var name, str, desc;
-  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
-  if (desc.get) {
-    if (desc.set) {
-      str = ctx.stylize('[Getter/Setter]', 'special');
-    } else {
-      str = ctx.stylize('[Getter]', 'special');
-    }
+},{"../package.json":112,"./elliptic/curve":100,"./elliptic/curves":103,"./elliptic/ec":104,"./elliptic/eddsa":107,"./elliptic/utils":111,"brorand":82}],98:[function(require,module,exports){
+'use strict';
+
+var BN = require('bn.js');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var getNAF = utils.getNAF;
+var getJSF = utils.getJSF;
+var assert = utils.assert;
+
+function BaseCurve(type, conf) {
+  this.type = type;
+  this.p = new BN(conf.p, 16);
+
+  // Use Montgomery, when there is no fast reduction for the prime
+  this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p);
+
+  // Useful for many curves
+  this.zero = new BN(0).toRed(this.red);
+  this.one = new BN(1).toRed(this.red);
+  this.two = new BN(2).toRed(this.red);
+
+  // Curve configuration, optional
+  this.n = conf.n && new BN(conf.n, 16);
+  this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed);
+
+  // Temporary arrays
+  this._wnafT1 = new Array(4);
+  this._wnafT2 = new Array(4);
+  this._wnafT3 = new Array(4);
+  this._wnafT4 = new Array(4);
+
+  // Generalized Greg Maxwell's trick
+  var adjustCount = this.n && this.p.div(this.n);
+  if (!adjustCount || adjustCount.cmpn(100) > 0) {
+    this.redN = null;
   } else {
-    if (desc.set) {
-      str = ctx.stylize('[Setter]', 'special');
-    }
+    this._maxwellTrick = true;
+    this.redN = this.n.toRed(this.red);
   }
-  if (!hasOwnProperty(visibleKeys, key)) {
-    name = '[' + key + ']';
+}
+module.exports = BaseCurve;
+
+BaseCurve.prototype.point = function point() {
+  throw new Error('Not implemented');
+};
+
+BaseCurve.prototype.validate = function validate() {
+  throw new Error('Not implemented');
+};
+
+BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) {
+  assert(p.precomputed);
+  var doubles = p._getDoubles();
+
+  var naf = getNAF(k, 1);
+  var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1);
+  I /= 3;
+
+  // Translate into more windowed form
+  var repr = [];
+  for (var j = 0; j < naf.length; j += doubles.step) {
+    var nafW = 0;
+    for (var k = j + doubles.step - 1; k >= j; k--)
+      nafW = (nafW << 1) + naf[k];
+    repr.push(nafW);
   }
-  if (!str) {
-    if (ctx.seen.indexOf(desc.value) < 0) {
-      if (isNull(recurseTimes)) {
-        str = formatValue(ctx, desc.value, null);
-      } else {
-        str = formatValue(ctx, desc.value, recurseTimes - 1);
-      }
-      if (str.indexOf('\n') > -1) {
-        if (array) {
-          str = str.split('\n').map(function(line) {
-            return '  ' + line;
-          }).join('\n').substr(2);
-        } else {
-          str = '\n' + str.split('\n').map(function(line) {
-            return '   ' + line;
-          }).join('\n');
-        }
-      }
-    } else {
-      str = ctx.stylize('[Circular]', 'special');
+
+  var a = this.jpoint(null, null, null);
+  var b = this.jpoint(null, null, null);
+  for (var i = I; i > 0; i--) {
+    for (var j = 0; j < repr.length; j++) {
+      var nafW = repr[j];
+      if (nafW === i)
+        b = b.mixedAdd(doubles.points[j]);
+      else if (nafW === -i)
+        b = b.mixedAdd(doubles.points[j].neg());
     }
+    a = a.add(b);
   }
-  if (isUndefined(name)) {
-    if (array && key.match(/^\d+$/)) {
-      return str;
-    }
-    name = JSON.stringify('' + key);
-    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
-      name = name.substr(1, name.length - 2);
-      name = ctx.stylize(name, 'name');
+  return a.toP();
+};
+
+BaseCurve.prototype._wnafMul = function _wnafMul(p, k) {
+  var w = 4;
+
+  // Precompute window
+  var nafPoints = p._getNAFPoints(w);
+  w = nafPoints.wnd;
+  var wnd = nafPoints.points;
+
+  // Get NAF form
+  var naf = getNAF(k, w);
+
+  // Add `this`*(N+1) for every w-NAF index
+  var acc = this.jpoint(null, null, null);
+  for (var i = naf.length - 1; i >= 0; i--) {
+    // Count zeroes
+    for (var k = 0; i >= 0 && naf[i] === 0; i--)
+      k++;
+    if (i >= 0)
+      k++;
+    acc = acc.dblp(k);
+
+    if (i < 0)
+      break;
+    var z = naf[i];
+    assert(z !== 0);
+    if (p.type === 'affine') {
+      // J +- P
+      if (z > 0)
+        acc = acc.mixedAdd(wnd[(z - 1) >> 1]);
+      else
+        acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg());
     } else {
-      name = name.replace(/'/g, "\\'")
-                 .replace(/\\"/g, '"')
-                 .replace(/(^"|"$)/g, "'");
-      name = ctx.stylize(name, 'string');
+      // J +- J
+      if (z > 0)
+        acc = acc.add(wnd[(z - 1) >> 1]);
+      else
+        acc = acc.add(wnd[(-z - 1) >> 1].neg());
     }
   }
+  return p.type === 'affine' ? acc.toP() : acc;
+};
 
-  return name + ': ' + str;
-}
+BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW,
+                                                       points,
+                                                       coeffs,
+                                                       len,
+                                                       jacobianResult) {
+  var wndWidth = this._wnafT1;
+  var wnd = this._wnafT2;
+  var naf = this._wnafT3;
 
+  // Fill all arrays
+  var max = 0;
+  for (var i = 0; i < len; i++) {
+    var p = points[i];
+    var nafPoints = p._getNAFPoints(defW);
+    wndWidth[i] = nafPoints.wnd;
+    wnd[i] = nafPoints.points;
+  }
 
-function reduceToSingleString(output, base, braces) {
-  var numLinesEst = 0;
-  var length = output.reduce(function(prev, cur) {
-    numLinesEst++;
-    if (cur.indexOf('\n') >= 0) numLinesEst++;
-    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
-  }, 0);
+  // Comb small window NAFs
+  for (var i = len - 1; i >= 1; i -= 2) {
+    var a = i - 1;
+    var b = i;
+    if (wndWidth[a] !== 1 || wndWidth[b] !== 1) {
+      naf[a] = getNAF(coeffs[a], wndWidth[a]);
+      naf[b] = getNAF(coeffs[b], wndWidth[b]);
+      max = Math.max(naf[a].length, max);
+      max = Math.max(naf[b].length, max);
+      continue;
+    }
 
-  if (length > 60) {
-    return braces[0] +
-           (base === '' ? '' : base + '\n ') +
-           ' ' +
-           output.join(',\n  ') +
-           ' ' +
-           braces[1];
-  }
+    var comb = [
+      points[a], /* 1 */
+      null, /* 3 */
+      null, /* 5 */
+      points[b] /* 7 */
+    ];
 
-  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
-}
+    // Try to avoid Projective points, if possible
+    if (points[a].y.cmp(points[b].y) === 0) {
+      comb[1] = points[a].add(points[b]);
+      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
+    } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) {
+      comb[1] = points[a].toJ().mixedAdd(points[b]);
+      comb[2] = points[a].add(points[b].neg());
+    } else {
+      comb[1] = points[a].toJ().mixedAdd(points[b]);
+      comb[2] = points[a].toJ().mixedAdd(points[b].neg());
+    }
 
+    var index = [
+      -3, /* -1 -1 */
+      -1, /* -1 0 */
+      -5, /* -1 1 */
+      -7, /* 0 -1 */
+      0, /* 0 0 */
+      7, /* 0 1 */
+      5, /* 1 -1 */
+      1, /* 1 0 */
+      3  /* 1 1 */
+    ];
 
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-function isArray(ar) {
-  return Array.isArray(ar);
-}
-exports.isArray = isArray;
+    var jsf = getJSF(coeffs[a], coeffs[b]);
+    max = Math.max(jsf[0].length, max);
+    naf[a] = new Array(max);
+    naf[b] = new Array(max);
+    for (var j = 0; j < max; j++) {
+      var ja = jsf[0][j] | 0;
+      var jb = jsf[1][j] | 0;
 
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
+      naf[a][j] = index[(ja + 1) * 3 + (jb + 1)];
+      naf[b][j] = 0;
+      wnd[a] = comb;
+    }
+  }
 
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
+  var acc = this.jpoint(null, null, null);
+  var tmp = this._wnafT4;
+  for (var i = max; i >= 0; i--) {
+    var k = 0;
 
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
+    while (i >= 0) {
+      var zero = true;
+      for (var j = 0; j < len; j++) {
+        tmp[j] = naf[j][i] | 0;
+        if (tmp[j] !== 0)
+          zero = false;
+      }
+      if (!zero)
+        break;
+      k++;
+      i--;
+    }
+    if (i >= 0)
+      k++;
+    acc = acc.dblp(k);
+    if (i < 0)
+      break;
 
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
+    for (var j = 0; j < len; j++) {
+      var z = tmp[j];
+      var p;
+      if (z === 0)
+        continue;
+      else if (z > 0)
+        p = wnd[j][(z - 1) >> 1];
+      else if (z < 0)
+        p = wnd[j][(-z - 1) >> 1].neg();
 
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
+      if (p.type === 'affine')
+        acc = acc.mixedAdd(p);
+      else
+        acc = acc.add(p);
+    }
+  }
+  // Zeroify references
+  for (var i = 0; i < len; i++)
+    wnd[i] = null;
 
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
+  if (jacobianResult)
+    return acc;
+  else
+    return acc.toP();
+};
 
-function isUndefined(arg) {
-  return arg === void 0;
+function BasePoint(curve, type) {
+  this.curve = curve;
+  this.type = type;
+  this.precomputed = null;
 }
-exports.isUndefined = isUndefined;
+BaseCurve.BasePoint = BasePoint;
 
-function isRegExp(re) {
-  return isObject(re) && objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
+BasePoint.prototype.eq = function eq(/*other*/) {
+  throw new Error('Not implemented');
+};
 
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
+BasePoint.prototype.validate = function validate() {
+  return this.curve.validate(this);
+};
 
-function isDate(d) {
-  return isObject(d) && objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
+BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
+  bytes = utils.toArray(bytes, enc);
 
-function isError(e) {
-  return isObject(e) &&
-      (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
+  var len = this.p.byteLength();
 
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
+  // uncompressed, hybrid-odd, hybrid-even
+  if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) &&
+      bytes.length - 1 === 2 * len) {
+    if (bytes[0] === 0x06)
+      assert(bytes[bytes.length - 1] % 2 === 0);
+    else if (bytes[0] === 0x07)
+      assert(bytes[bytes.length - 1] % 2 === 1);
 
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
+    var res =  this.point(bytes.slice(1, 1 + len),
+                          bytes.slice(1 + len, 1 + 2 * len));
 
-exports.isBuffer = require('./support/isBuffer');
+    return res;
+  } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) &&
+              bytes.length - 1 === len) {
+    return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03);
+  }
+  throw new Error('Unknown point format');
+};
 
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
-}
+BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) {
+  return this.encode(enc, true);
+};
 
+BasePoint.prototype._encode = function _encode(compact) {
+  var len = this.curve.p.byteLength();
+  var x = this.getX().toArray('be', len);
 
-function pad(n) {
-  return n < 10 ? '0' + n.toString(10) : n.toString(10);
-}
+  if (compact)
+    return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x);
 
+  return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ;
+};
 
-var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
-              'Oct', 'Nov', 'Dec'];
+BasePoint.prototype.encode = function encode(enc, compact) {
+  return utils.encode(this._encode(compact), enc);
+};
 
-// 26 Feb 16:19:34
-function timestamp() {
-  var d = new Date();
-  var time = [pad(d.getHours()),
-              pad(d.getMinutes()),
-              pad(d.getSeconds())].join(':');
-  return [d.getDate(), months[d.getMonth()], time].join(' ');
-}
+BasePoint.prototype.precompute = function precompute(power) {
+  if (this.precomputed)
+    return this;
 
+  var precomputed = {
+    doubles: null,
+    naf: null,
+    beta: null
+  };
+  precomputed.naf = this._getNAFPoints(8);
+  precomputed.doubles = this._getDoubles(4, power);
+  precomputed.beta = this._getBeta();
+  this.precomputed = precomputed;
 
-// log is just a thin wrapper to console.log that prepends a timestamp
-exports.log = function() {
-  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
+  return this;
 };
 
+BasePoint.prototype._hasDoubles = function _hasDoubles(k) {
+  if (!this.precomputed)
+    return false;
 
-/**
- * Inherit the prototype methods from one constructor into another.
- *
- * The Function.prototype.inherits from lang.js rewritten as a standalone
- * function (not on Function.prototype). NOTE: If this file is to be loaded
- * during bootstrapping this function needs to be rewritten using some native
- * functions as prototype setup using normal JavaScript does not work as
- * expected during bootstrapping (see mirror.js in r114903).
- *
- * @param {function} ctor Constructor function which needs to inherit the
- *     prototype.
- * @param {function} superCtor Constructor function to inherit prototype from.
- */
-exports.inherits = require('inherits');
+  var doubles = this.precomputed.doubles;
+  if (!doubles)
+    return false;
 
-exports._extend = function(origin, add) {
-  // Don't do anything if add isn't an object
-  if (!add || !isObject(add)) return origin;
+  return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step);
+};
 
-  var keys = Object.keys(add);
-  var i = keys.length;
-  while (i--) {
-    origin[keys[i]] = add[keys[i]];
+BasePoint.prototype._getDoubles = function _getDoubles(step, power) {
+  if (this.precomputed && this.precomputed.doubles)
+    return this.precomputed.doubles;
+
+  var doubles = [ this ];
+  var acc = this;
+  for (var i = 0; i < power; i += step) {
+    for (var j = 0; j < step; j++)
+      acc = acc.dbl();
+    doubles.push(acc);
   }
-  return origin;
+  return {
+    step: step,
+    points: doubles
+  };
 };
 
-function hasOwnProperty(obj, prop) {
-  return Object.prototype.hasOwnProperty.call(obj, prop);
-}
-
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./support/isBuffer":28,"_process":14,"inherits":12}],30:[function(require,module,exports){
-// Base58 encoding/decoding
-// Originally written by Mike Hearn for BitcoinJ
-// Copyright (c) 2011 Google Inc
-// Ported to JavaScript by Stefan Thomas
-// Merged Buffer refactorings from base58-native by Stephen Pair
-// Copyright (c) 2013 BitPay Inc
+BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) {
+  if (this.precomputed && this.precomputed.naf)
+    return this.precomputed.naf;
 
-var ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-var ALPHABET_MAP = {}
-for(var i = 0; i < ALPHABET.length; i++) {
-  ALPHABET_MAP[ALPHABET.charAt(i)] = i
-}
-var BASE = 58
+  var res = [ this ];
+  var max = (1 << wnd) - 1;
+  var dbl = max === 1 ? null : this.dbl();
+  for (var i = 1; i < max; i++)
+    res[i] = res[i - 1].add(dbl);
+  return {
+    wnd: wnd,
+    points: res
+  };
+};
 
-function encode(buffer) {
-  if (buffer.length === 0) return ''
+BasePoint.prototype._getBeta = function _getBeta() {
+  return null;
+};
 
-  var i, j, digits = [0]
-  for (i = 0; i < buffer.length; i++) {
-    for (j = 0; j < digits.length; j++) digits[j] <<= 8
+BasePoint.prototype.dblp = function dblp(k) {
+  var r = this;
+  for (var i = 0; i < k; i++)
+    r = r.dbl();
+  return r;
+};
 
-    digits[0] += buffer[i]
+},{"../../elliptic":97,"bn.js":81}],99:[function(require,module,exports){
+'use strict';
 
-    var carry = 0
-    for (j = 0; j < digits.length; ++j) {
-      digits[j] += carry
+var curve = require('../curve');
+var elliptic = require('../../elliptic');
+var BN = require('bn.js');
+var inherits = require('inherits');
+var Base = curve.base;
 
-      carry = (digits[j] / BASE) | 0
-      digits[j] %= BASE
-    }
+var assert = elliptic.utils.assert;
 
-    while (carry) {
-      digits.push(carry % BASE)
+function EdwardsCurve(conf) {
+  // NOTE: Important as we are creating point in Base.call()
+  this.twisted = (conf.a | 0) !== 1;
+  this.mOneA = this.twisted && (conf.a | 0) === -1;
+  this.extended = this.mOneA;
 
-      carry = (carry / BASE) | 0
-    }
-  }
+  Base.call(this, 'edwards', conf);
 
-  // deal with leading zeros
-  for (i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0)
+  this.a = new BN(conf.a, 16).umod(this.red.m);
+  this.a = this.a.toRed(this.red);
+  this.c = new BN(conf.c, 16).toRed(this.red);
+  this.c2 = this.c.redSqr();
+  this.d = new BN(conf.d, 16).toRed(this.red);
+  this.dd = this.d.redAdd(this.d);
 
-  // convert digits to a string
-  var stringOutput = ""
-  for (var i = digits.length - 1; i >= 0; i--) {
-    stringOutput = stringOutput + ALPHABET[digits[i]]
-  }
-  return stringOutput
+  assert(!this.twisted || this.c.fromRed().cmpn(1) === 0);
+  this.oneC = (conf.c | 0) === 1;
 }
+inherits(EdwardsCurve, Base);
+module.exports = EdwardsCurve;
+
+EdwardsCurve.prototype._mulA = function _mulA(num) {
+  if (this.mOneA)
+    return num.redNeg();
+  else
+    return this.a.redMul(num);
+};
 
-function decode(string) {
-  if (string.length === 0) return []
+EdwardsCurve.prototype._mulC = function _mulC(num) {
+  if (this.oneC)
+    return num;
+  else
+    return this.c.redMul(num);
+};
 
-  var i, j, bytes = [0]
-  for (i = 0; i < string.length; i++) {
-    var c = string[i]
-    if (!(c in ALPHABET_MAP)) throw new Error('Non-base58 character')
+// Just for compatibility with Short curve
+EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) {
+  return this.point(x, y, z, t);
+};
 
-    for (j = 0; j < bytes.length; j++) bytes[j] *= BASE
-    bytes[0] += ALPHABET_MAP[c]
+EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) {
+  x = new BN(x, 16);
+  if (!x.red)
+    x = x.toRed(this.red);
 
-    var carry = 0
-    for (j = 0; j < bytes.length; ++j) {
-      bytes[j] += carry
+  var x2 = x.redSqr();
+  var rhs = this.c2.redSub(this.a.redMul(x2));
+  var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2));
 
-      carry = bytes[j] >> 8
-      bytes[j] &= 0xff
-    }
+  var y2 = rhs.redMul(lhs.redInvm());
+  var y = y2.redSqrt();
+  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
+    throw new Error('invalid point');
 
-    while (carry) {
-      bytes.push(carry & 0xff)
+  var isOdd = y.fromRed().isOdd();
+  if (odd && !isOdd || !odd && isOdd)
+    y = y.redNeg();
 
-      carry >>= 8
-    }
-  }
+  return this.point(x, y);
+};
 
-  // deal with leading zeros
-  for (i = 0; string[i] === '1' && i < string.length - 1; i++) bytes.push(0)
+EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) {
+  y = new BN(y, 16);
+  if (!y.red)
+    y = y.toRed(this.red);
 
-  return bytes.reverse()
-}
+  // x^2 = (y^2 - 1) / (d y^2 + 1)
+  var y2 = y.redSqr();
+  var lhs = y2.redSub(this.one);
+  var rhs = y2.redMul(this.d).redAdd(this.one);
+  var x2 = lhs.redMul(rhs.redInvm());
 
-module.exports = {
-  encode: encode,
-  decode: decode
-}
+  if (x2.cmp(this.zero) === 0) {
+    if (odd)
+      throw new Error('invalid point');
+    else
+      return this.point(this.zero, y);
+  }
 
-},{}],31:[function(require,module,exports){
-(function (Buffer){
-'use strict'
+  var x = x2.redSqrt();
+  if (x.redSqr().redSub(x2).cmp(this.zero) !== 0)
+    throw new Error('invalid point');
 
-var base58 = require('bs58')
-var createHash = require('create-hash')
+  if (x.isOdd() !== odd)
+    x = x.redNeg();
 
-// SHA256(SHA256(buffer))
-function sha256x2 (buffer) {
-  buffer = createHash('sha256').update(buffer).digest()
-  return createHash('sha256').update(buffer).digest()
-}
+  return this.point(x, y);
+};
 
-// Encode a buffer as a base58-check encoded string
-function encode (payload) {
-  var checksum = sha256x2(payload).slice(0, 4)
+EdwardsCurve.prototype.validate = function validate(point) {
+  if (point.isInfinity())
+    return true;
 
-  return base58.encode(Buffer.concat([
-    payload,
-    checksum
-  ]))
-}
+  // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2)
+  point.normalize();
 
-// Decode a base58-check encoded string to a buffer
-function decode (string) {
-  var buffer = new Buffer(base58.decode(string))
+  var x2 = point.x.redSqr();
+  var y2 = point.y.redSqr();
+  var lhs = x2.redMul(this.a).redAdd(y2);
+  var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2)));
 
-  var payload = buffer.slice(0, -4)
-  var checksum = buffer.slice(-4)
-  var newChecksum = sha256x2(payload).slice(0, 4)
+  return lhs.cmp(rhs) === 0;
+};
 
-  for (var i = 0; i < newChecksum.length; ++i) {
-    if (newChecksum[i] === checksum[i]) continue
+function Point(curve, x, y, z, t) {
+  Base.BasePoint.call(this, curve, 'projective');
+  if (x === null && y === null && z === null) {
+    this.x = this.curve.zero;
+    this.y = this.curve.one;
+    this.z = this.curve.one;
+    this.t = this.curve.zero;
+    this.zOne = true;
+  } else {
+    this.x = new BN(x, 16);
+    this.y = new BN(y, 16);
+    this.z = z ? new BN(z, 16) : this.curve.one;
+    this.t = t && new BN(t, 16);
+    if (!this.x.red)
+      this.x = this.x.toRed(this.curve.red);
+    if (!this.y.red)
+      this.y = this.y.toRed(this.curve.red);
+    if (!this.z.red)
+      this.z = this.z.toRed(this.curve.red);
+    if (this.t && !this.t.red)
+      this.t = this.t.toRed(this.curve.red);
+    this.zOne = this.z === this.curve.one;
 
-    throw new Error('Invalid checksum')
+    // Use extended coordinates
+    if (this.curve.extended && !this.t) {
+      this.t = this.x.redMul(this.y);
+      if (!this.zOne)
+        this.t = this.t.redMul(this.z.redInvm());
+    }
   }
-
-  return payload
 }
+inherits(Point, Base.BasePoint);
 
-module.exports = {
-  encode: encode,
-  decode: decode
-}
+EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
+  return Point.fromJSON(this, obj);
+};
 
-}).call(this,require("buffer").Buffer)
-},{"bs58":30,"buffer":7,"create-hash":32}],32:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var inherits = require('inherits')
-var md5 = require('./md5')
-var rmd160 = require('ripemd160')
-var sha = require('sha.js')
+EdwardsCurve.prototype.point = function point(x, y, z, t) {
+  return new Point(this, x, y, z, t);
+};
 
-var Transform = require('stream').Transform
+Point.fromJSON = function fromJSON(curve, obj) {
+  return new Point(curve, obj[0], obj[1], obj[2]);
+};
 
-function HashNoConstructor(hash) {
-  Transform.call(this)
+Point.prototype.inspect = function inspect() {
+  if (this.isInfinity())
+    return '<EC Point Infinity>';
+  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
+      ' y: ' + this.y.fromRed().toString(16, 2) +
+      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
+};
 
-  this._hash = hash
-  this.buffers = []
-}
+Point.prototype.isInfinity = function isInfinity() {
+  // XXX This code assumes that zero is always zero in red
+  return this.x.cmpn(0) === 0 &&
+         this.y.cmp(this.z) === 0;
+};
 
-inherits(HashNoConstructor, Transform)
+Point.prototype._extDbl = function _extDbl() {
+  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+  //     #doubling-dbl-2008-hwcd
+  // 4M + 4S
 
-HashNoConstructor.prototype._transform = function (data, _, next) {
-  this.buffers.push(data)
+  // A = X1^2
+  var a = this.x.redSqr();
+  // B = Y1^2
+  var b = this.y.redSqr();
+  // C = 2 * Z1^2
+  var c = this.z.redSqr();
+  c = c.redIAdd(c);
+  // D = a * A
+  var d = this.curve._mulA(a);
+  // E = (X1 + Y1)^2 - A - B
+  var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b);
+  // G = D + B
+  var g = d.redAdd(b);
+  // F = G - C
+  var f = g.redSub(c);
+  // H = D - B
+  var h = d.redSub(b);
+  // X3 = E * F
+  var nx = e.redMul(f);
+  // Y3 = G * H
+  var ny = g.redMul(h);
+  // T3 = E * H
+  var nt = e.redMul(h);
+  // Z3 = F * G
+  var nz = f.redMul(g);
+  return this.curve.point(nx, ny, nz, nt);
+};
 
-  next()
-}
+Point.prototype._projDbl = function _projDbl() {
+  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
+  //     #doubling-dbl-2008-bbjlp
+  //     #doubling-dbl-2007-bl
+  // and others
+  // Generally 3M + 4S or 2M + 4S
 
-HashNoConstructor.prototype._flush = function (next) {
-  this.push(this.digest())
-  next()
-}
+  // B = (X1 + Y1)^2
+  var b = this.x.redAdd(this.y).redSqr();
+  // C = X1^2
+  var c = this.x.redSqr();
+  // D = Y1^2
+  var d = this.y.redSqr();
 
-HashNoConstructor.prototype.update = function (data, enc) {
-  if (typeof data === 'string') {
-    data = new Buffer(data, enc)
+  var nx;
+  var ny;
+  var nz;
+  if (this.curve.twisted) {
+    // E = a * C
+    var e = this.curve._mulA(c);
+    // F = E + D
+    var f = e.redAdd(d);
+    if (this.zOne) {
+      // X3 = (B - C - D) * (F - 2)
+      nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two));
+      // Y3 = F * (E - D)
+      ny = f.redMul(e.redSub(d));
+      // Z3 = F^2 - 2 * F
+      nz = f.redSqr().redSub(f).redSub(f);
+    } else {
+      // H = Z1^2
+      var h = this.z.redSqr();
+      // J = F - 2 * H
+      var j = f.redSub(h).redISub(h);
+      // X3 = (B-C-D)*J
+      nx = b.redSub(c).redISub(d).redMul(j);
+      // Y3 = F * (E - D)
+      ny = f.redMul(e.redSub(d));
+      // Z3 = F * J
+      nz = f.redMul(j);
+    }
+  } else {
+    // E = C + D
+    var e = c.redAdd(d);
+    // H = (c * Z1)^2
+    var h = this.curve._mulC(this.c.redMul(this.z)).redSqr();
+    // J = E - 2 * H
+    var j = e.redSub(h).redSub(h);
+    // X3 = c * (B - E) * J
+    nx = this.curve._mulC(b.redISub(e)).redMul(j);
+    // Y3 = c * E * (C - D)
+    ny = this.curve._mulC(e).redMul(c.redISub(d));
+    // Z3 = E * J
+    nz = e.redMul(j);
   }
+  return this.curve.point(nx, ny, nz);
+};
 
-  this.buffers.push(data)
-  return this
-}
+Point.prototype.dbl = function dbl() {
+  if (this.isInfinity())
+    return this;
 
-HashNoConstructor.prototype.digest = function (enc) {
-  var buf = Buffer.concat(this.buffers)
-  var r = this._hash(buf)
-  this.buffers = null
+  // Double in extended coordinates
+  if (this.curve.extended)
+    return this._extDbl();
+  else
+    return this._projDbl();
+};
 
-  return enc ? r.toString(enc) : r
-}
+Point.prototype._extAdd = function _extAdd(p) {
+  // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+  //     #addition-add-2008-hwcd-3
+  // 8M
 
-function Hash(hash) {
-  Transform.call(this)
+  // A = (Y1 - X1) * (Y2 - X2)
+  var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x));
+  // B = (Y1 + X1) * (Y2 + X2)
+  var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x));
+  // C = T1 * k * T2
+  var c = this.t.redMul(this.curve.dd).redMul(p.t);
+  // D = Z1 * 2 * Z2
+  var d = this.z.redMul(p.z.redAdd(p.z));
+  // E = B - A
+  var e = b.redSub(a);
+  // F = D - C
+  var f = d.redSub(c);
+  // G = D + C
+  var g = d.redAdd(c);
+  // H = B + A
+  var h = b.redAdd(a);
+  // X3 = E * F
+  var nx = e.redMul(f);
+  // Y3 = G * H
+  var ny = g.redMul(h);
+  // T3 = E * H
+  var nt = e.redMul(h);
+  // Z3 = F * G
+  var nz = f.redMul(g);
+  return this.curve.point(nx, ny, nz, nt);
+};
 
-  this._hash = hash
-}
+Point.prototype._projAdd = function _projAdd(p) {
+  // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html
+  //     #addition-add-2008-bbjlp
+  //     #addition-add-2007-bl
+  // 10M + 1S
 
-inherits(Hash, Transform)
+  // A = Z1 * Z2
+  var a = this.z.redMul(p.z);
+  // B = A^2
+  var b = a.redSqr();
+  // C = X1 * X2
+  var c = this.x.redMul(p.x);
+  // D = Y1 * Y2
+  var d = this.y.redMul(p.y);
+  // E = d * C * D
+  var e = this.curve.d.redMul(c).redMul(d);
+  // F = B - E
+  var f = b.redSub(e);
+  // G = B + E
+  var g = b.redAdd(e);
+  // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D)
+  var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d);
+  var nx = a.redMul(f).redMul(tmp);
+  var ny;
+  var nz;
+  if (this.curve.twisted) {
+    // Y3 = A * G * (D - a * C)
+    ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c)));
+    // Z3 = F * G
+    nz = f.redMul(g);
+  } else {
+    // Y3 = A * G * (D - C)
+    ny = a.redMul(g).redMul(d.redSub(c));
+    // Z3 = c * F * G
+    nz = this.curve._mulC(f).redMul(g);
+  }
+  return this.curve.point(nx, ny, nz);
+};
 
-Hash.prototype._transform = function (data, enc, next) {
-  if (enc) data = new Buffer(data, enc)
+Point.prototype.add = function add(p) {
+  if (this.isInfinity())
+    return p;
+  if (p.isInfinity())
+    return this;
 
-  this._hash.update(data)
+  if (this.curve.extended)
+    return this._extAdd(p);
+  else
+    return this._projAdd(p);
+};
 
-  next()
-}
+Point.prototype.mul = function mul(k) {
+  if (this._hasDoubles(k))
+    return this.curve._fixedNafMul(this, k);
+  else
+    return this.curve._wnafMul(this, k);
+};
 
-Hash.prototype._flush = function (next) {
-  this.push(this._hash.digest())
-  this._hash = null
+Point.prototype.mulAdd = function mulAdd(k1, p, k2) {
+  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false);
+};
 
-  next()
-}
+Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) {
+  return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true);
+};
 
-Hash.prototype.update = function (data, enc) {
-  if (typeof data === 'string') {
-    data = new Buffer(data, enc)
-  }
+Point.prototype.normalize = function normalize() {
+  if (this.zOne)
+    return this;
 
-  this._hash.update(data)
-  return this
-}
+  // Normalize coordinates
+  var zi = this.z.redInvm();
+  this.x = this.x.redMul(zi);
+  this.y = this.y.redMul(zi);
+  if (this.t)
+    this.t = this.t.redMul(zi);
+  this.z = this.curve.one;
+  this.zOne = true;
+  return this;
+};
 
-Hash.prototype.digest = function (enc) {
-  var outData = this._hash.digest()
+Point.prototype.neg = function neg() {
+  return this.curve.point(this.x.redNeg(),
+                          this.y,
+                          this.z,
+                          this.t && this.t.redNeg());
+};
 
-  return enc ? outData.toString(enc) : outData
-}
+Point.prototype.getX = function getX() {
+  this.normalize();
+  return this.x.fromRed();
+};
 
-module.exports = function createHash (alg) {
-  if ('md5' === alg) return new HashNoConstructor(md5)
-  if ('rmd160' === alg) return new HashNoConstructor(rmd160)
+Point.prototype.getY = function getY() {
+  this.normalize();
+  return this.y.fromRed();
+};
 
-  return new Hash(sha(alg))
-}
+Point.prototype.eq = function eq(other) {
+  return this === other ||
+         this.getX().cmp(other.getX()) === 0 &&
+         this.getY().cmp(other.getY()) === 0;
+};
 
-}).call(this,require("buffer").Buffer)
-},{"./md5":34,"buffer":7,"inherits":35,"ripemd160":36,"sha.js":38,"stream":26}],33:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var intSize = 4;
-var zeroBuffer = new Buffer(intSize); zeroBuffer.fill(0);
-var chrsz = 8;
+Point.prototype.eqXToP = function eqXToP(x) {
+  var rx = x.toRed(this.curve.red).redMul(this.z);
+  if (this.x.cmp(rx) === 0)
+    return true;
 
-function toArray(buf, bigEndian) {
-  if ((buf.length % intSize) !== 0) {
-    var len = buf.length + (intSize - (buf.length % intSize));
-    buf = Buffer.concat([buf, zeroBuffer], len);
-  }
+  var xc = x.clone();
+  var t = this.curve.redN.redMul(this.z);
+  for (;;) {
+    xc.iadd(this.curve.n);
+    if (xc.cmp(this.curve.p) >= 0)
+      return false;
 
-  var arr = [];
-  var fn = bigEndian ? buf.readInt32BE : buf.readInt32LE;
-  for (var i = 0; i < buf.length; i += intSize) {
-    arr.push(fn.call(buf, i));
+    rx.redIAdd(t);
+    if (this.x.cmp(rx) === 0)
+      return true;
   }
-  return arr;
-}
+  return false;
+};
 
-function toBuffer(arr, size, bigEndian) {
-  var buf = new Buffer(size);
-  var fn = bigEndian ? buf.writeInt32BE : buf.writeInt32LE;
-  for (var i = 0; i < arr.length; i++) {
-    fn.call(buf, arr[i], i * 4, true);
-  }
-  return buf;
-}
+// Compatibility with BaseCurve
+Point.prototype.toP = Point.prototype.normalize;
+Point.prototype.mixedAdd = Point.prototype.add;
 
-function hash(buf, fn, hashSize, bigEndian) {
-  if (!Buffer.isBuffer(buf)) buf = new Buffer(buf);
-  var arr = fn(toArray(buf, bigEndian), buf.length * chrsz);
-  return toBuffer(arr, hashSize, bigEndian);
-}
-exports.hash = hash;
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],34:[function(require,module,exports){
+},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],100:[function(require,module,exports){
 'use strict';
-/*
- * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
- * Digest Algorithm, as defined in RFC 1321.
- * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for more info.
- */
 
-var helpers = require('./helpers');
+var curve = exports;
 
-/*
- * Calculate the MD5 of an array of little-endian words, and a bit length
- */
-function core_md5(x, len)
-{
-  /* append padding */
-  x[len >> 5] |= 0x80 << ((len) % 32);
-  x[(((len + 64) >>> 9) << 4) + 14] = len;
+curve.base = require('./base');
+curve.short = require('./short');
+curve.mont = require('./mont');
+curve.edwards = require('./edwards');
 
-  var a =  1732584193;
-  var b = -271733879;
-  var c = -1732584194;
-  var d =  271733878;
+},{"./base":98,"./edwards":99,"./mont":101,"./short":102}],101:[function(require,module,exports){
+'use strict';
 
-  for(var i = 0; i < x.length; i += 16)
-  {
-    var olda = a;
-    var oldb = b;
-    var oldc = c;
-    var oldd = d;
+var curve = require('../curve');
+var BN = require('bn.js');
+var inherits = require('inherits');
+var Base = curve.base;
 
-    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
-    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
-    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
-    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
-    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
-    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
-    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
-    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
-    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
-    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
-    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
-    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
-    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
-    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
-    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
-    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
 
-    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
-    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
-    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
-    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
-    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
-    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
-    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
-    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
-    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
-    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
-    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
-    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
-    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
-    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
-    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
-    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);
+function MontCurve(conf) {
+  Base.call(this, 'mont', conf);
 
-    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
-    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
-    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
-    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
-    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
-    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
-    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
-    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
-    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
-    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
-    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
-    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
-    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
-    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
-    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
-    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);
+  this.a = new BN(conf.a, 16).toRed(this.red);
+  this.b = new BN(conf.b, 16).toRed(this.red);
+  this.i4 = new BN(4).toRed(this.red).redInvm();
+  this.two = new BN(2).toRed(this.red);
+  this.a24 = this.i4.redMul(this.a.redAdd(this.two));
+}
+inherits(MontCurve, Base);
+module.exports = MontCurve;
 
-    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
-    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
-    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
-    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
-    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
-    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
-    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
-    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
-    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
-    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
-    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
-    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
-    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
-    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
-    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
-    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);
+MontCurve.prototype.validate = function validate(point) {
+  var x = point.normalize().x;
+  var x2 = x.redSqr();
+  var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x);
+  var y = rhs.redSqrt();
 
-    a = safe_add(a, olda);
-    b = safe_add(b, oldb);
-    c = safe_add(c, oldc);
-    d = safe_add(d, oldd);
-  }
-  return Array(a, b, c, d);
+  return y.redSqr().cmp(rhs) === 0;
+};
 
+function Point(curve, x, z) {
+  Base.BasePoint.call(this, curve, 'projective');
+  if (x === null && z === null) {
+    this.x = this.curve.one;
+    this.z = this.curve.zero;
+  } else {
+    this.x = new BN(x, 16);
+    this.z = new BN(z, 16);
+    if (!this.x.red)
+      this.x = this.x.toRed(this.curve.red);
+    if (!this.z.red)
+      this.z = this.z.toRed(this.curve.red);
+  }
 }
+inherits(Point, Base.BasePoint);
 
-/*
- * These functions implement the four basic operations the algorithm uses.
- */
-function md5_cmn(q, a, b, x, s, t)
-{
-  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
-}
-function md5_ff(a, b, c, d, x, s, t)
-{
-  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
-}
-function md5_gg(a, b, c, d, x, s, t)
-{
-  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
-}
-function md5_hh(a, b, c, d, x, s, t)
-{
-  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function md5_ii(a, b, c, d, x, s, t)
-{
-  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
-}
+MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) {
+  return this.point(utils.toArray(bytes, enc), 1);
+};
 
-/*
- * Add integers, wrapping at 2^32. This uses 16-bit operations internally
- * to work around bugs in some JS interpreters.
- */
-function safe_add(x, y)
-{
-  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
-  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
-  return (msw << 16) | (lsw & 0xFFFF);
-}
+MontCurve.prototype.point = function point(x, z) {
+  return new Point(this, x, z);
+};
 
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function bit_rol(num, cnt)
-{
-  return (num << cnt) | (num >>> (32 - cnt));
-}
+MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) {
+  return Point.fromJSON(this, obj);
+};
+
+Point.prototype.precompute = function precompute() {
+  // No-op
+};
+
+Point.prototype._encode = function _encode() {
+  return this.getX().toArray('be', this.curve.p.byteLength());
+};
 
-module.exports = function md5(buf) {
-  return helpers.hash(buf, core_md5, 16);
+Point.fromJSON = function fromJSON(curve, obj) {
+  return new Point(curve, obj[0], obj[1] || curve.one);
 };
-},{"./helpers":33}],35:[function(require,module,exports){
-arguments[4][12][0].apply(exports,arguments)
-},{"dup":12}],36:[function(require,module,exports){
-(function (Buffer){
-/*
-CryptoJS v3.1.2
-code.google.com/p/crypto-js
-(c) 2009-2013 by Jeff Mott. All rights reserved.
-code.google.com/p/crypto-js/wiki/License
-*/
-/** @preserve
-(c) 2012 by Cédric Mesnil. All rights reserved.
 
-Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+Point.prototype.inspect = function inspect() {
+  if (this.isInfinity())
+    return '<EC Point Infinity>';
+  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
+      ' z: ' + this.z.fromRed().toString(16, 2) + '>';
+};
 
-    - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
-    - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+Point.prototype.isInfinity = function isInfinity() {
+  // XXX This code assumes that zero is always zero in red
+  return this.z.cmpn(0) === 0;
+};
 
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+Point.prototype.dbl = function dbl() {
+  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3
+  // 2M + 2S + 4A
 
-// constants table
-var zl = [
-  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
-  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
-  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
-  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
-]
+  // A = X1 + Z1
+  var a = this.x.redAdd(this.z);
+  // AA = A^2
+  var aa = a.redSqr();
+  // B = X1 - Z1
+  var b = this.x.redSub(this.z);
+  // BB = B^2
+  var bb = b.redSqr();
+  // C = AA - BB
+  var c = aa.redSub(bb);
+  // X3 = AA * BB
+  var nx = aa.redMul(bb);
+  // Z3 = C * (BB + A24 * C)
+  var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c)));
+  return this.curve.point(nx, nz);
+};
 
-var zr = [
-  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
-  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
-  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
-  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
-  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
-]
+Point.prototype.add = function add() {
+  throw new Error('Not supported on Montgomery curve');
+};
 
-var sl = [
-  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
-  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
-  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
-  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
-  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
-]
+Point.prototype.diffAdd = function diffAdd(p, diff) {
+  // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3
+  // 4M + 2S + 6A
 
-var sr = [
-  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
-  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
-  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
-  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
-  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
-]
+  // A = X2 + Z2
+  var a = this.x.redAdd(this.z);
+  // B = X2 - Z2
+  var b = this.x.redSub(this.z);
+  // C = X3 + Z3
+  var c = p.x.redAdd(p.z);
+  // D = X3 - Z3
+  var d = p.x.redSub(p.z);
+  // DA = D * A
+  var da = d.redMul(a);
+  // CB = C * B
+  var cb = c.redMul(b);
+  // X5 = Z1 * (DA + CB)^2
+  var nx = diff.z.redMul(da.redAdd(cb).redSqr());
+  // Z5 = X1 * (DA - CB)^2
+  var nz = diff.x.redMul(da.redISub(cb).redSqr());
+  return this.curve.point(nx, nz);
+};
 
-var hl = [0x00000000, 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xA953FD4E]
-var hr = [0x50A28BE6, 0x5C4DD124, 0x6D703EF3, 0x7A6D76E9, 0x00000000]
+Point.prototype.mul = function mul(k) {
+  var t = k.clone();
+  var a = this; // (N / 2) * Q + Q
+  var b = this.curve.point(null, null); // (N / 2) * Q
+  var c = this; // Q
 
-function bytesToWords (bytes) {
-  var words = []
-  for (var i = 0, b = 0; i < bytes.length; i++, b += 8) {
-    words[b >>> 5] |= bytes[i] << (24 - b % 32)
-  }
-  return words
-}
+  for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1))
+    bits.push(t.andln(1));
 
-function wordsToBytes (words) {
-  var bytes = []
-  for (var b = 0; b < words.length * 32; b += 8) {
-    bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF)
+  for (var i = bits.length - 1; i >= 0; i--) {
+    if (bits[i] === 0) {
+      // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q
+      a = a.diffAdd(b, c);
+      // N * Q = 2 * ((N / 2) * Q + Q))
+      b = b.dbl();
+    } else {
+      // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q)
+      b = a.diffAdd(b, c);
+      // N * Q + Q = 2 * ((N / 2) * Q + Q)
+      a = a.dbl();
+    }
   }
-  return bytes
-}
+  return b;
+};
 
-function processBlock (H, M, offset) {
-  // swap endian
-  for (var i = 0; i < 16; i++) {
-    var offset_i = offset + i
-    var M_offset_i = M[offset_i]
+Point.prototype.mulAdd = function mulAdd() {
+  throw new Error('Not supported on Montgomery curve');
+};
 
-    // Swap
-    M[offset_i] = (
-      (((M_offset_i << 8) | (M_offset_i >>> 24)) & 0x00ff00ff) |
-      (((M_offset_i << 24) | (M_offset_i >>> 8)) & 0xff00ff00)
-    )
-  }
+Point.prototype.jumlAdd = function jumlAdd() {
+  throw new Error('Not supported on Montgomery curve');
+};
 
-  // Working variables
-  var al, bl, cl, dl, el
-  var ar, br, cr, dr, er
+Point.prototype.eq = function eq(other) {
+  return this.getX().cmp(other.getX()) === 0;
+};
 
-  ar = al = H[0]
-  br = bl = H[1]
-  cr = cl = H[2]
-  dr = dl = H[3]
-  er = el = H[4]
+Point.prototype.normalize = function normalize() {
+  this.x = this.x.redMul(this.z.redInvm());
+  this.z = this.curve.one;
+  return this;
+};
 
-  // computation
-  var t
-  for (i = 0; i < 80; i += 1) {
-    t = (al + M[offset + zl[i]]) | 0
-    if (i < 16) {
-      t += f1(bl, cl, dl) + hl[0]
-    } else if (i < 32) {
-      t += f2(bl, cl, dl) + hl[1]
-    } else if (i < 48) {
-      t += f3(bl, cl, dl) + hl[2]
-    } else if (i < 64) {
-      t += f4(bl, cl, dl) + hl[3]
-    } else {// if (i<80) {
-      t += f5(bl, cl, dl) + hl[4]
-    }
-    t = t | 0
-    t = rotl(t, sl[i])
-    t = (t + el) | 0
-    al = el
-    el = dl
-    dl = rotl(cl, 10)
-    cl = bl
-    bl = t
+Point.prototype.getX = function getX() {
+  // Normalize coordinates
+  this.normalize();
 
-    t = (ar + M[offset + zr[i]]) | 0
-    if (i < 16) {
-      t += f5(br, cr, dr) + hr[0]
-    } else if (i < 32) {
-      t += f4(br, cr, dr) + hr[1]
-    } else if (i < 48) {
-      t += f3(br, cr, dr) + hr[2]
-    } else if (i < 64) {
-      t += f2(br, cr, dr) + hr[3]
-    } else {// if (i<80) {
-      t += f1(br, cr, dr) + hr[4]
-    }
+  return this.x.fromRed();
+};
 
-    t = t | 0
-    t = rotl(t, sr[i])
-    t = (t + er) | 0
-    ar = er
-    er = dr
-    dr = rotl(cr, 10)
-    cr = br
-    br = t
-  }
+},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],102:[function(require,module,exports){
+'use strict';
 
-  // intermediate hash value
-  t = (H[1] + cl + dr) | 0
-  H[1] = (H[2] + dl + er) | 0
-  H[2] = (H[3] + el + ar) | 0
-  H[3] = (H[4] + al + br) | 0
-  H[4] = (H[0] + bl + cr) | 0
-  H[0] = t
-}
+var curve = require('../curve');
+var elliptic = require('../../elliptic');
+var BN = require('bn.js');
+var inherits = require('inherits');
+var Base = curve.base;
 
-function f1 (x, y, z) {
-  return ((x) ^ (y) ^ (z))
-}
+var assert = elliptic.utils.assert;
 
-function f2 (x, y, z) {
-  return (((x) & (y)) | ((~x) & (z)))
-}
+function ShortCurve(conf) {
+  Base.call(this, 'short', conf);
 
-function f3 (x, y, z) {
-  return (((x) | (~(y))) ^ (z))
-}
+  this.a = new BN(conf.a, 16).toRed(this.red);
+  this.b = new BN(conf.b, 16).toRed(this.red);
+  this.tinv = this.two.redInvm();
 
-function f4 (x, y, z) {
-  return (((x) & (z)) | ((y) & (~(z))))
-}
+  this.zeroA = this.a.fromRed().cmpn(0) === 0;
+  this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0;
 
-function f5 (x, y, z) {
-  return ((x) ^ ((y) | (~(z))))
+  // If the curve is endomorphic, precalculate beta and lambda
+  this.endo = this._getEndomorphism(conf);
+  this._endoWnafT1 = new Array(4);
+  this._endoWnafT2 = new Array(4);
 }
+inherits(ShortCurve, Base);
+module.exports = ShortCurve;
 
-function rotl (x, n) {
-  return (x << n) | (x >>> (32 - n))
-}
+ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) {
+  // No efficient endomorphism
+  if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1)
+    return;
 
-function ripemd160 (message) {
-  var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0]
+  // Compute beta and lambda, that lambda * P = (beta * Px; Py)
+  var beta;
+  var lambda;
+  if (conf.beta) {
+    beta = new BN(conf.beta, 16).toRed(this.red);
+  } else {
+    var betas = this._getEndoRoots(this.p);
+    // Choose the smallest beta
+    beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1];
+    beta = beta.toRed(this.red);
+  }
+  if (conf.lambda) {
+    lambda = new BN(conf.lambda, 16);
+  } else {
+    // Choose the lambda that is matching selected beta
+    var lambdas = this._getEndoRoots(this.n);
+    if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) {
+      lambda = lambdas[0];
+    } else {
+      lambda = lambdas[1];
+      assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0);
+    }
+  }
 
-  if (typeof message === 'string') {
-    message = new Buffer(message, 'utf8')
+  // Get basis vectors, used for balanced length-two representation
+  var basis;
+  if (conf.basis) {
+    basis = conf.basis.map(function(vec) {
+      return {
+        a: new BN(vec.a, 16),
+        b: new BN(vec.b, 16)
+      };
+    });
+  } else {
+    basis = this._getEndoBasis(lambda);
   }
 
-  var m = bytesToWords(message)
+  return {
+    beta: beta,
+    lambda: lambda,
+    basis: basis
+  };
+};
 
-  var nBitsLeft = message.length * 8
-  var nBitsTotal = message.length * 8
+ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) {
+  // Find roots of for x^2 + x + 1 in F
+  // Root = (-1 +- Sqrt(-3)) / 2
+  //
+  var red = num === this.p ? this.red : BN.mont(num);
+  var tinv = new BN(2).toRed(red).redInvm();
+  var ntinv = tinv.redNeg();
 
-  // Add padding
-  m[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32)
-  m[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
-    (((nBitsTotal << 8) | (nBitsTotal >>> 24)) & 0x00ff00ff) |
-    (((nBitsTotal << 24) | (nBitsTotal >>> 8)) & 0xff00ff00)
-  )
+  var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv);
 
-  for (var i = 0; i < m.length; i += 16) {
-    processBlock(H, m, i)
+  var l1 = ntinv.redAdd(s).fromRed();
+  var l2 = ntinv.redSub(s).fromRed();
+  return [ l1, l2 ];
+};
+
+ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) {
+  // aprxSqrt >= sqrt(this.n)
+  var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2));
+
+  // 3.74
+  // Run EGCD, until r(L + 1) < aprxSqrt
+  var u = lambda;
+  var v = this.n.clone();
+  var x1 = new BN(1);
+  var y1 = new BN(0);
+  var x2 = new BN(0);
+  var y2 = new BN(1);
+
+  // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n)
+  var a0;
+  var b0;
+  // First vector
+  var a1;
+  var b1;
+  // Second vector
+  var a2;
+  var b2;
+
+  var prevR;
+  var i = 0;
+  var r;
+  var x;
+  while (u.cmpn(0) !== 0) {
+    var q = v.div(u);
+    r = v.sub(q.mul(u));
+    x = x2.sub(q.mul(x1));
+    var y = y2.sub(q.mul(y1));
+
+    if (!a1 && r.cmp(aprxSqrt) < 0) {
+      a0 = prevR.neg();
+      b0 = x1;
+      a1 = r.neg();
+      b1 = x;
+    } else if (a1 && ++i === 2) {
+      break;
+    }
+    prevR = r;
+
+    v = u;
+    u = r;
+    x2 = x1;
+    x1 = x;
+    y2 = y1;
+    y1 = y;
   }
+  a2 = r.neg();
+  b2 = x;
 
-  // swap endian
-  for (i = 0; i < 5; i++) {
-    // shortcut
-    var H_i = H[i]
+  var len1 = a1.sqr().add(b1.sqr());
+  var len2 = a2.sqr().add(b2.sqr());
+  if (len2.cmp(len1) >= 0) {
+    a2 = a0;
+    b2 = b0;
+  }
 
-    // Swap
-    H[i] = (((H_i << 8) | (H_i >>> 24)) & 0x00ff00ff) |
-      (((H_i << 24) | (H_i >>> 8)) & 0xff00ff00)
+  // Normalize signs
+  if (a1.negative) {
+    a1 = a1.neg();
+    b1 = b1.neg();
+  }
+  if (a2.negative) {
+    a2 = a2.neg();
+    b2 = b2.neg();
   }
 
-  var digestbytes = wordsToBytes(H)
-  return new Buffer(digestbytes)
-}
+  return [
+    { a: a1, b: b1 },
+    { a: a2, b: b2 }
+  ];
+};
 
-module.exports = ripemd160
+ShortCurve.prototype._endoSplit = function _endoSplit(k) {
+  var basis = this.endo.basis;
+  var v1 = basis[0];
+  var v2 = basis[1];
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],37:[function(require,module,exports){
-(function (Buffer){
-// prototype class for hash functions
-function Hash (blockSize, finalSize) {
-  this._block = new Buffer(blockSize)
-  this._finalSize = finalSize
-  this._blockSize = blockSize
-  this._len = 0
-  this._s = 0
-}
+  var c1 = v2.b.mul(k).divRound(this.n);
+  var c2 = v1.b.neg().mul(k).divRound(this.n);
 
-Hash.prototype.update = function (data, enc) {
-  if (typeof data === 'string') {
-    enc = enc || 'utf8'
-    data = new Buffer(data, enc)
-  }
+  var p1 = c1.mul(v1.a);
+  var p2 = c2.mul(v2.a);
+  var q1 = c1.mul(v1.b);
+  var q2 = c2.mul(v2.b);
 
-  var l = this._len += data.length
-  var s = this._s || 0
-  var f = 0
-  var buffer = this._block
+  // Calculate answer
+  var k1 = k.sub(p1).sub(p2);
+  var k2 = q1.add(q2).neg();
+  return { k1: k1, k2: k2 };
+};
 
-  while (s < l) {
-    var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize))
-    var ch = (t - f)
+ShortCurve.prototype.pointFromX = function pointFromX(x, odd) {
+  x = new BN(x, 16);
+  if (!x.red)
+    x = x.toRed(this.red);
 
-    for (var i = 0; i < ch; i++) {
-      buffer[(s % this._blockSize) + i] = data[i + f]
-    }
+  var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b);
+  var y = y2.redSqrt();
+  if (y.redSqr().redSub(y2).cmp(this.zero) !== 0)
+    throw new Error('invalid point');
 
-    s += ch
-    f += ch
+  // XXX Is there any way to tell if the number is odd without converting it
+  // to non-red form?
+  var isOdd = y.fromRed().isOdd();
+  if (odd && !isOdd || !odd && isOdd)
+    y = y.redNeg();
 
-    if ((s % this._blockSize) === 0) {
-      this._update(buffer)
-    }
-  }
-  this._s = s
+  return this.point(x, y);
+};
 
-  return this
-}
+ShortCurve.prototype.validate = function validate(point) {
+  if (point.inf)
+    return true;
 
-Hash.prototype.digest = function (enc) {
-  // Suppose the length of the message M, in bits, is l
-  var l = this._len * 8
+  var x = point.x;
+  var y = point.y;
+
+  var ax = this.a.redMul(x);
+  var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b);
+  return y.redSqr().redISub(rhs).cmpn(0) === 0;
+};
+
+ShortCurve.prototype._endoWnafMulAdd =
+    function _endoWnafMulAdd(points, coeffs, jacobianResult) {
+  var npoints = this._endoWnafT1;
+  var ncoeffs = this._endoWnafT2;
+  for (var i = 0; i < points.length; i++) {
+    var split = this._endoSplit(coeffs[i]);
+    var p = points[i];
+    var beta = p._getBeta();
+
+    if (split.k1.negative) {
+      split.k1.ineg();
+      p = p.neg(true);
+    }
+    if (split.k2.negative) {
+      split.k2.ineg();
+      beta = beta.neg(true);
+    }
 
-  // Append the bit 1 to the end of the message
-  this._block[this._len % this._blockSize] = 0x80
+    npoints[i * 2] = p;
+    npoints[i * 2 + 1] = beta;
+    ncoeffs[i * 2] = split.k1;
+    ncoeffs[i * 2 + 1] = split.k2;
+  }
+  var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult);
 
-  // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize
-  this._block.fill(0, this._len % this._blockSize + 1)
+  // Clean-up references to points and coefficients
+  for (var j = 0; j < i * 2; j++) {
+    npoints[j] = null;
+    ncoeffs[j] = null;
+  }
+  return res;
+};
 
-  if (l % (this._blockSize * 8) >= this._finalSize * 8) {
-    this._update(this._block)
-    this._block.fill(0)
+function Point(curve, x, y, isRed) {
+  Base.BasePoint.call(this, curve, 'affine');
+  if (x === null && y === null) {
+    this.x = null;
+    this.y = null;
+    this.inf = true;
+  } else {
+    this.x = new BN(x, 16);
+    this.y = new BN(y, 16);
+    // Force redgomery representation when loading from JSON
+    if (isRed) {
+      this.x.forceRed(this.curve.red);
+      this.y.forceRed(this.curve.red);
+    }
+    if (!this.x.red)
+      this.x = this.x.toRed(this.curve.red);
+    if (!this.y.red)
+      this.y = this.y.toRed(this.curve.red);
+    this.inf = false;
   }
+}
+inherits(Point, Base.BasePoint);
 
-  // to this append the block which is equal to the number l written in binary
-  // TODO: handle case where l is > Math.pow(2, 29)
-  this._block.writeInt32BE(l, this._blockSize - 4)
+ShortCurve.prototype.point = function point(x, y, isRed) {
+  return new Point(this, x, y, isRed);
+};
 
-  var hash = this._update(this._block) || this._hash()
+ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) {
+  return Point.fromJSON(this, obj, red);
+};
 
-  return enc ? hash.toString(enc) : hash
-}
+Point.prototype._getBeta = function _getBeta() {
+  if (!this.curve.endo)
+    return;
 
-Hash.prototype._update = function () {
-  throw new Error('_update must be implemented by subclass')
-}
+  var pre = this.precomputed;
+  if (pre && pre.beta)
+    return pre.beta;
 
-module.exports = Hash
+  var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y);
+  if (pre) {
+    var curve = this.curve;
+    var endoMul = function(p) {
+      return curve.point(p.x.redMul(curve.endo.beta), p.y);
+    };
+    pre.beta = beta;
+    beta.precomputed = {
+      beta: null,
+      naf: pre.naf && {
+        wnd: pre.naf.wnd,
+        points: pre.naf.points.map(endoMul)
+      },
+      doubles: pre.doubles && {
+        step: pre.doubles.step,
+        points: pre.doubles.points.map(endoMul)
+      }
+    };
+  }
+  return beta;
+};
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],38:[function(require,module,exports){
-var exports = module.exports = function SHA (algorithm) {
-  algorithm = algorithm.toLowerCase()
+Point.prototype.toJSON = function toJSON() {
+  if (!this.precomputed)
+    return [ this.x, this.y ];
 
-  var Algorithm = exports[algorithm]
-  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
+  return [ this.x, this.y, this.precomputed && {
+    doubles: this.precomputed.doubles && {
+      step: this.precomputed.doubles.step,
+      points: this.precomputed.doubles.points.slice(1)
+    },
+    naf: this.precomputed.naf && {
+      wnd: this.precomputed.naf.wnd,
+      points: this.precomputed.naf.points.slice(1)
+    }
+  } ];
+};
 
-  return new Algorithm()
-}
+Point.fromJSON = function fromJSON(curve, obj, red) {
+  if (typeof obj === 'string')
+    obj = JSON.parse(obj);
+  var res = curve.point(obj[0], obj[1], red);
+  if (!obj[2])
+    return res;
 
-exports.sha = require('./sha')
-exports.sha1 = require('./sha1')
-exports.sha224 = require('./sha224')
-exports.sha256 = require('./sha256')
-exports.sha384 = require('./sha384')
-exports.sha512 = require('./sha512')
+  function obj2point(obj) {
+    return curve.point(obj[0], obj[1], red);
+  }
 
-},{"./sha":39,"./sha1":40,"./sha224":41,"./sha256":42,"./sha384":43,"./sha512":44}],39:[function(require,module,exports){
-(function (Buffer){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
- * in FIPS PUB 180-1
- * This source code is derived from sha1.js of the same repository.
- * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
- * operation was added.
- */
+  var pre = obj[2];
+  res.precomputed = {
+    beta: null,
+    doubles: pre.doubles && {
+      step: pre.doubles.step,
+      points: [ res ].concat(pre.doubles.points.map(obj2point))
+    },
+    naf: pre.naf && {
+      wnd: pre.naf.wnd,
+      points: [ res ].concat(pre.naf.points.map(obj2point))
+    }
+  };
+  return res;
+};
 
-var inherits = require('inherits')
-var Hash = require('./hash')
+Point.prototype.inspect = function inspect() {
+  if (this.isInfinity())
+    return '<EC Point Infinity>';
+  return '<EC Point x: ' + this.x.fromRed().toString(16, 2) +
+      ' y: ' + this.y.fromRed().toString(16, 2) + '>';
+};
 
-var W = new Array(80)
+Point.prototype.isInfinity = function isInfinity() {
+  return this.inf;
+};
 
-function Sha () {
-  this.init()
-  this._w = W
+Point.prototype.add = function add(p) {
+  // O + P = P
+  if (this.inf)
+    return p;
 
-  Hash.call(this, 64, 56)
-}
+  // P + O = P
+  if (p.inf)
+    return this;
 
-inherits(Sha, Hash)
+  // P + P = 2P
+  if (this.eq(p))
+    return this.dbl();
 
-Sha.prototype.init = function () {
-  this._a = 0x67452301 | 0
-  this._b = 0xefcdab89 | 0
-  this._c = 0x98badcfe | 0
-  this._d = 0x10325476 | 0
-  this._e = 0xc3d2e1f0 | 0
+  // P + (-P) = O
+  if (this.neg().eq(p))
+    return this.curve.point(null, null);
 
-  return this
-}
+  // P + Q = O
+  if (this.x.cmp(p.x) === 0)
+    return this.curve.point(null, null);
 
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
-  return (num << cnt) | (num >>> (32 - cnt))
-}
+  var c = this.y.redSub(p.y);
+  if (c.cmpn(0) !== 0)
+    c = c.redMul(this.x.redSub(p.x).redInvm());
+  var nx = c.redSqr().redISub(this.x).redISub(p.x);
+  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
+  return this.curve.point(nx, ny);
+};
 
-Sha.prototype._update = function (M) {
-  var W = this._w
+Point.prototype.dbl = function dbl() {
+  if (this.inf)
+    return this;
 
-  var a = this._a
-  var b = this._b
-  var c = this._c
-  var d = this._d
-  var e = this._e
+  // 2P = O
+  var ys1 = this.y.redAdd(this.y);
+  if (ys1.cmpn(0) === 0)
+    return this.curve.point(null, null);
 
-  var j = 0, k
+  var a = this.curve.a;
 
-  /*
-   * SHA-1 has a bitwise rotate left operation. But, SHA is not
-   * function calcW() { return rol(W[j - 3] ^ W[j -  8] ^ W[j - 14] ^ W[j - 16], 1) }
-   */
-  function calcW () { return W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16] }
-  function loop (w, f) {
-    W[j] = w
+  var x2 = this.x.redSqr();
+  var dyinv = ys1.redInvm();
+  var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv);
 
-    var t = rol(a, 5) + f + e + w + k
+  var nx = c.redSqr().redISub(this.x.redAdd(this.x));
+  var ny = c.redMul(this.x.redSub(nx)).redISub(this.y);
+  return this.curve.point(nx, ny);
+};
 
-    e = d
-    d = c
-    c = rol(b, 30)
-    b = a
-    a = t
-    j++
-  }
+Point.prototype.getX = function getX() {
+  return this.x.fromRed();
+};
 
-  k = 1518500249
-  while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
-  while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
-  k = 1859775393
-  while (j < 40) loop(calcW(), b ^ c ^ d)
-  k = -1894007588
-  while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
-  k = -899497514
-  while (j < 80) loop(calcW(), b ^ c ^ d)
+Point.prototype.getY = function getY() {
+  return this.y.fromRed();
+};
 
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-}
+Point.prototype.mul = function mul(k) {
+  k = new BN(k, 16);
 
-Sha.prototype._hash = function () {
-  var H = new Buffer(20)
+  if (this._hasDoubles(k))
+    return this.curve._fixedNafMul(this, k);
+  else if (this.curve.endo)
+    return this.curve._endoWnafMulAdd([ this ], [ k ]);
+  else
+    return this.curve._wnafMul(this, k);
+};
 
-  H.writeInt32BE(this._a | 0, 0)
-  H.writeInt32BE(this._b | 0, 4)
-  H.writeInt32BE(this._c | 0, 8)
-  H.writeInt32BE(this._d | 0, 12)
-  H.writeInt32BE(this._e | 0, 16)
+Point.prototype.mulAdd = function mulAdd(k1, p2, k2) {
+  var points = [ this, p2 ];
+  var coeffs = [ k1, k2 ];
+  if (this.curve.endo)
+    return this.curve._endoWnafMulAdd(points, coeffs);
+  else
+    return this.curve._wnafMulAdd(1, points, coeffs, 2);
+};
 
-  return H
-}
+Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) {
+  var points = [ this, p2 ];
+  var coeffs = [ k1, k2 ];
+  if (this.curve.endo)
+    return this.curve._endoWnafMulAdd(points, coeffs, true);
+  else
+    return this.curve._wnafMulAdd(1, points, coeffs, 2, true);
+};
 
-module.exports = Sha
+Point.prototype.eq = function eq(p) {
+  return this === p ||
+         this.inf === p.inf &&
+             (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0);
+};
 
+Point.prototype.neg = function neg(_precompute) {
+  if (this.inf)
+    return this;
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],40:[function(require,module,exports){
-(function (Buffer){
-/*
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
- * in FIPS PUB 180-1
- * Version 2.1a Copyright Paul Johnston 2000 - 2002.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- * Distributed under the BSD License
- * See http://pajhome.org.uk/crypt/md5 for details.
- */
+  var res = this.curve.point(this.x, this.y.redNeg());
+  if (_precompute && this.precomputed) {
+    var pre = this.precomputed;
+    var negate = function(p) {
+      return p.neg();
+    };
+    res.precomputed = {
+      naf: pre.naf && {
+        wnd: pre.naf.wnd,
+        points: pre.naf.points.map(negate)
+      },
+      doubles: pre.doubles && {
+        step: pre.doubles.step,
+        points: pre.doubles.points.map(negate)
+      }
+    };
+  }
+  return res;
+};
 
-var inherits = require('inherits')
-var Hash = require('./hash')
+Point.prototype.toJ = function toJ() {
+  if (this.inf)
+    return this.curve.jpoint(null, null, null);
 
-var W = new Array(80)
+  var res = this.curve.jpoint(this.x, this.y, this.curve.one);
+  return res;
+};
 
-function Sha1 () {
-  this.init()
-  this._w = W
+function JPoint(curve, x, y, z) {
+  Base.BasePoint.call(this, curve, 'jacobian');
+  if (x === null && y === null && z === null) {
+    this.x = this.curve.one;
+    this.y = this.curve.one;
+    this.z = new BN(0);
+  } else {
+    this.x = new BN(x, 16);
+    this.y = new BN(y, 16);
+    this.z = new BN(z, 16);
+  }
+  if (!this.x.red)
+    this.x = this.x.toRed(this.curve.red);
+  if (!this.y.red)
+    this.y = this.y.toRed(this.curve.red);
+  if (!this.z.red)
+    this.z = this.z.toRed(this.curve.red);
 
-  Hash.call(this, 64, 56)
+  this.zOne = this.z === this.curve.one;
 }
+inherits(JPoint, Base.BasePoint);
 
-inherits(Sha1, Hash)
-
-Sha1.prototype.init = function () {
-  this._a = 0x67452301 | 0
-  this._b = 0xefcdab89 | 0
-  this._c = 0x98badcfe | 0
-  this._d = 0x10325476 | 0
-  this._e = 0xc3d2e1f0 | 0
+ShortCurve.prototype.jpoint = function jpoint(x, y, z) {
+  return new JPoint(this, x, y, z);
+};
 
-  return this
-}
+JPoint.prototype.toP = function toP() {
+  if (this.isInfinity())
+    return this.curve.point(null, null);
 
-/*
- * Bitwise rotate a 32-bit number to the left.
- */
-function rol (num, cnt) {
-  return (num << cnt) | (num >>> (32 - cnt))
-}
+  var zinv = this.z.redInvm();
+  var zinv2 = zinv.redSqr();
+  var ax = this.x.redMul(zinv2);
+  var ay = this.y.redMul(zinv2).redMul(zinv);
 
-Sha1.prototype._update = function (M) {
-  var W = this._w
+  return this.curve.point(ax, ay);
+};
 
-  var a = this._a
-  var b = this._b
-  var c = this._c
-  var d = this._d
-  var e = this._e
+JPoint.prototype.neg = function neg() {
+  return this.curve.jpoint(this.x, this.y.redNeg(), this.z);
+};
 
-  var j = 0, k
+JPoint.prototype.add = function add(p) {
+  // O + P = P
+  if (this.isInfinity())
+    return p;
 
-  function calcW () { return rol(W[j - 3] ^ W[j - 8] ^ W[j - 14] ^ W[j - 16], 1) }
-  function loop (w, f) {
-    W[j] = w
+  // P + O = P
+  if (p.isInfinity())
+    return this;
 
-    var t = rol(a, 5) + f + e + w + k
+  // 12M + 4S + 7A
+  var pz2 = p.z.redSqr();
+  var z2 = this.z.redSqr();
+  var u1 = this.x.redMul(pz2);
+  var u2 = p.x.redMul(z2);
+  var s1 = this.y.redMul(pz2.redMul(p.z));
+  var s2 = p.y.redMul(z2.redMul(this.z));
 
-    e = d
-    d = c
-    c = rol(b, 30)
-    b = a
-    a = t
-    j++
+  var h = u1.redSub(u2);
+  var r = s1.redSub(s2);
+  if (h.cmpn(0) === 0) {
+    if (r.cmpn(0) !== 0)
+      return this.curve.jpoint(null, null, null);
+    else
+      return this.dbl();
   }
 
-  k = 1518500249
-  while (j < 16) loop(M.readInt32BE(j * 4), (b & c) | ((~b) & d))
-  while (j < 20) loop(calcW(), (b & c) | ((~b) & d))
-  k = 1859775393
-  while (j < 40) loop(calcW(), b ^ c ^ d)
-  k = -1894007588
-  while (j < 60) loop(calcW(), (b & c) | (b & d) | (c & d))
-  k = -899497514
-  while (j < 80) loop(calcW(), b ^ c ^ d)
-
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-}
+  var h2 = h.redSqr();
+  var h3 = h2.redMul(h);
+  var v = u1.redMul(h2);
 
-Sha1.prototype._hash = function () {
-  var H = new Buffer(20)
+  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
+  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
+  var nz = this.z.redMul(p.z).redMul(h);
 
-  H.writeInt32BE(this._a | 0, 0)
-  H.writeInt32BE(this._b | 0, 4)
-  H.writeInt32BE(this._c | 0, 8)
-  H.writeInt32BE(this._d | 0, 12)
-  H.writeInt32BE(this._e | 0, 16)
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-  return H
-}
+JPoint.prototype.mixedAdd = function mixedAdd(p) {
+  // O + P = P
+  if (this.isInfinity())
+    return p.toJ();
 
-module.exports = Sha1
+  // P + O = P
+  if (p.isInfinity())
+    return this;
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],41:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
+  // 8M + 3S + 7A
+  var z2 = this.z.redSqr();
+  var u1 = this.x;
+  var u2 = p.x.redMul(z2);
+  var s1 = this.y;
+  var s2 = p.y.redMul(z2).redMul(this.z);
 
-var inherits = require('inherits')
-var Sha256 = require('./sha256')
-var Hash = require('./hash')
+  var h = u1.redSub(u2);
+  var r = s1.redSub(s2);
+  if (h.cmpn(0) === 0) {
+    if (r.cmpn(0) !== 0)
+      return this.curve.jpoint(null, null, null);
+    else
+      return this.dbl();
+  }
 
-var W = new Array(64)
+  var h2 = h.redSqr();
+  var h3 = h2.redMul(h);
+  var v = u1.redMul(h2);
 
-function Sha224 () {
-  this.init()
+  var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v);
+  var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3));
+  var nz = this.z.redMul(h);
 
-  this._w = W // new Array(64)
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-  Hash.call(this, 64, 56)
-}
+JPoint.prototype.dblp = function dblp(pow) {
+  if (pow === 0)
+    return this;
+  if (this.isInfinity())
+    return this;
+  if (!pow)
+    return this.dbl();
 
-inherits(Sha224, Sha256)
+  if (this.curve.zeroA || this.curve.threeA) {
+    var r = this;
+    for (var i = 0; i < pow; i++)
+      r = r.dbl();
+    return r;
+  }
 
-Sha224.prototype.init = function () {
-  this._a = 0xc1059ed8 | 0
-  this._b = 0x367cd507 | 0
-  this._c = 0x3070dd17 | 0
-  this._d = 0xf70e5939 | 0
-  this._e = 0xffc00b31 | 0
-  this._f = 0x68581511 | 0
-  this._g = 0x64f98fa7 | 0
-  this._h = 0xbefa4fa4 | 0
+  // 1M + 2S + 1A + N * (4S + 5M + 8A)
+  // N = 1 => 6M + 6S + 9A
+  var a = this.curve.a;
+  var tinv = this.curve.tinv;
 
-  return this
-}
+  var jx = this.x;
+  var jy = this.y;
+  var jz = this.z;
+  var jz4 = jz.redSqr().redSqr();
 
-Sha224.prototype._hash = function () {
-  var H = new Buffer(28)
+  // Reuse results
+  var jyd = jy.redAdd(jy);
+  for (var i = 0; i < pow; i++) {
+    var jx2 = jx.redSqr();
+    var jyd2 = jyd.redSqr();
+    var jyd4 = jyd2.redSqr();
+    var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
 
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
+    var t1 = jx.redMul(jyd2);
+    var nx = c.redSqr().redISub(t1.redAdd(t1));
+    var t2 = t1.redISub(nx);
+    var dny = c.redMul(t2);
+    dny = dny.redIAdd(dny).redISub(jyd4);
+    var nz = jyd.redMul(jz);
+    if (i + 1 < pow)
+      jz4 = jz4.redMul(jyd4);
 
-  return H
-}
+    jx = nx;
+    jz = nz;
+    jyd = dny;
+  }
 
-module.exports = Sha224
+  return this.curve.jpoint(jx, jyd.redMul(tinv), jz);
+};
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"./sha256":42,"buffer":7,"inherits":35}],42:[function(require,module,exports){
-(function (Buffer){
-/**
- * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
- * in FIPS 180-2
- * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
- * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
- *
- */
+JPoint.prototype.dbl = function dbl() {
+  if (this.isInfinity())
+    return this;
 
-var inherits = require('inherits')
-var Hash = require('./hash')
+  if (this.curve.zeroA)
+    return this._zeroDbl();
+  else if (this.curve.threeA)
+    return this._threeDbl();
+  else
+    return this._dbl();
+};
 
-var K = [
-  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
-  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
-  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
-  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
-  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
-  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
-  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
-  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
-  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
-  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
-  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
-  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
-  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
-  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
-  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
-  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
-]
+JPoint.prototype._zeroDbl = function _zeroDbl() {
+  var nx;
+  var ny;
+  var nz;
+  // Z = 1
+  if (this.zOne) {
+    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
+    //     #doubling-mdbl-2007-bl
+    // 1M + 5S + 14A
 
-var W = new Array(64)
+    // XX = X1^2
+    var xx = this.x.redSqr();
+    // YY = Y1^2
+    var yy = this.y.redSqr();
+    // YYYY = YY^2
+    var yyyy = yy.redSqr();
+    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
+    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
+    s = s.redIAdd(s);
+    // M = 3 * XX + a; a = 0
+    var m = xx.redAdd(xx).redIAdd(xx);
+    // T = M ^ 2 - 2*S
+    var t = m.redSqr().redISub(s).redISub(s);
 
-function Sha256 () {
-  this.init()
+    // 8 * YYYY
+    var yyyy8 = yyyy.redIAdd(yyyy);
+    yyyy8 = yyyy8.redIAdd(yyyy8);
+    yyyy8 = yyyy8.redIAdd(yyyy8);
 
-  this._w = W // new Array(64)
+    // X3 = T
+    nx = t;
+    // Y3 = M * (S - T) - 8 * YYYY
+    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
+    // Z3 = 2*Y1
+    nz = this.y.redAdd(this.y);
+  } else {
+    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
+    //     #doubling-dbl-2009-l
+    // 2M + 5S + 13A
 
-  Hash.call(this, 64, 56)
-}
+    // A = X1^2
+    var a = this.x.redSqr();
+    // B = Y1^2
+    var b = this.y.redSqr();
+    // C = B^2
+    var c = b.redSqr();
+    // D = 2 * ((X1 + B)^2 - A - C)
+    var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c);
+    d = d.redIAdd(d);
+    // E = 3 * A
+    var e = a.redAdd(a).redIAdd(a);
+    // F = E^2
+    var f = e.redSqr();
 
-inherits(Sha256, Hash)
+    // 8 * C
+    var c8 = c.redIAdd(c);
+    c8 = c8.redIAdd(c8);
+    c8 = c8.redIAdd(c8);
 
-Sha256.prototype.init = function () {
-  this._a = 0x6a09e667 | 0
-  this._b = 0xbb67ae85 | 0
-  this._c = 0x3c6ef372 | 0
-  this._d = 0xa54ff53a | 0
-  this._e = 0x510e527f | 0
-  this._f = 0x9b05688c | 0
-  this._g = 0x1f83d9ab | 0
-  this._h = 0x5be0cd19 | 0
+    // X3 = F - 2 * D
+    nx = f.redISub(d).redISub(d);
+    // Y3 = E * (D - X3) - 8 * C
+    ny = e.redMul(d.redISub(nx)).redISub(c8);
+    // Z3 = 2 * Y1 * Z1
+    nz = this.y.redMul(this.z);
+    nz = nz.redIAdd(nz);
+  }
 
-  return this
-}
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-function S (X, n) {
-  return (X >>> n) | (X << (32 - n))
-}
+JPoint.prototype._threeDbl = function _threeDbl() {
+  var nx;
+  var ny;
+  var nz;
+  // Z = 1
+  if (this.zOne) {
+    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html
+    //     #doubling-mdbl-2007-bl
+    // 1M + 5S + 15A
 
-function R (X, n) {
-  return (X >>> n)
-}
+    // XX = X1^2
+    var xx = this.x.redSqr();
+    // YY = Y1^2
+    var yy = this.y.redSqr();
+    // YYYY = YY^2
+    var yyyy = yy.redSqr();
+    // S = 2 * ((X1 + YY)^2 - XX - YYYY)
+    var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
+    s = s.redIAdd(s);
+    // M = 3 * XX + a
+    var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a);
+    // T = M^2 - 2 * S
+    var t = m.redSqr().redISub(s).redISub(s);
+    // X3 = T
+    nx = t;
+    // Y3 = M * (S - T) - 8 * YYYY
+    var yyyy8 = yyyy.redIAdd(yyyy);
+    yyyy8 = yyyy8.redIAdd(yyyy8);
+    yyyy8 = yyyy8.redIAdd(yyyy8);
+    ny = m.redMul(s.redISub(t)).redISub(yyyy8);
+    // Z3 = 2 * Y1
+    nz = this.y.redAdd(this.y);
+  } else {
+    // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b
+    // 3M + 5S
 
-function Ch (x, y, z) {
-  return ((x & y) ^ ((~x) & z))
-}
+    // delta = Z1^2
+    var delta = this.z.redSqr();
+    // gamma = Y1^2
+    var gamma = this.y.redSqr();
+    // beta = X1 * gamma
+    var beta = this.x.redMul(gamma);
+    // alpha = 3 * (X1 - delta) * (X1 + delta)
+    var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta));
+    alpha = alpha.redAdd(alpha).redIAdd(alpha);
+    // X3 = alpha^2 - 8 * beta
+    var beta4 = beta.redIAdd(beta);
+    beta4 = beta4.redIAdd(beta4);
+    var beta8 = beta4.redAdd(beta4);
+    nx = alpha.redSqr().redISub(beta8);
+    // Z3 = (Y1 + Z1)^2 - gamma - delta
+    nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta);
+    // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2
+    var ggamma8 = gamma.redSqr();
+    ggamma8 = ggamma8.redIAdd(ggamma8);
+    ggamma8 = ggamma8.redIAdd(ggamma8);
+    ggamma8 = ggamma8.redIAdd(ggamma8);
+    ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8);
+  }
 
-function Maj (x, y, z) {
-  return ((x & y) ^ (x & z) ^ (y & z))
-}
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-function Sigma0256 (x) {
-  return (S(x, 2) ^ S(x, 13) ^ S(x, 22))
-}
+JPoint.prototype._dbl = function _dbl() {
+  var a = this.curve.a;
 
-function Sigma1256 (x) {
-  return (S(x, 6) ^ S(x, 11) ^ S(x, 25))
-}
+  // 4M + 6S + 10A
+  var jx = this.x;
+  var jy = this.y;
+  var jz = this.z;
+  var jz4 = jz.redSqr().redSqr();
 
-function Gamma0256 (x) {
-  return (S(x, 7) ^ S(x, 18) ^ R(x, 3))
-}
+  var jx2 = jx.redSqr();
+  var jy2 = jy.redSqr();
 
-function Gamma1256 (x) {
-  return (S(x, 17) ^ S(x, 19) ^ R(x, 10))
-}
+  var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4));
 
-Sha256.prototype._update = function (M) {
-  var W = this._w
+  var jxd4 = jx.redAdd(jx);
+  jxd4 = jxd4.redIAdd(jxd4);
+  var t1 = jxd4.redMul(jy2);
+  var nx = c.redSqr().redISub(t1.redAdd(t1));
+  var t2 = t1.redISub(nx);
 
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-  var f = this._f | 0
-  var g = this._g | 0
-  var h = this._h | 0
+  var jyd8 = jy2.redSqr();
+  jyd8 = jyd8.redIAdd(jyd8);
+  jyd8 = jyd8.redIAdd(jyd8);
+  jyd8 = jyd8.redIAdd(jyd8);
+  var ny = c.redMul(t2).redISub(jyd8);
+  var nz = jy.redAdd(jy).redMul(jz);
 
-  var j = 0
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-  function calcW () { return Gamma1256(W[j - 2]) + W[j - 7] + Gamma0256(W[j - 15]) + W[j - 16] }
-  function loop (w) {
-    W[j] = w
+JPoint.prototype.trpl = function trpl() {
+  if (!this.curve.zeroA)
+    return this.dbl().add(this);
 
-    var T1 = h + Sigma1256(e) + Ch(e, f, g) + K[j] + w
-    var T2 = Sigma0256(a) + Maj(a, b, c)
+  // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl
+  // 5M + 10S + ...
 
-    h = g
-    g = f
-    f = e
-    e = d + T1
-    d = c
-    c = b
-    b = a
-    a = T1 + T2
+  // XX = X1^2
+  var xx = this.x.redSqr();
+  // YY = Y1^2
+  var yy = this.y.redSqr();
+  // ZZ = Z1^2
+  var zz = this.z.redSqr();
+  // YYYY = YY^2
+  var yyyy = yy.redSqr();
+  // M = 3 * XX + a * ZZ2; a = 0
+  var m = xx.redAdd(xx).redIAdd(xx);
+  // MM = M^2
+  var mm = m.redSqr();
+  // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM
+  var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy);
+  e = e.redIAdd(e);
+  e = e.redAdd(e).redIAdd(e);
+  e = e.redISub(mm);
+  // EE = E^2
+  var ee = e.redSqr();
+  // T = 16*YYYY
+  var t = yyyy.redIAdd(yyyy);
+  t = t.redIAdd(t);
+  t = t.redIAdd(t);
+  t = t.redIAdd(t);
+  // U = (M + E)^2 - MM - EE - T
+  var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t);
+  // X3 = 4 * (X1 * EE - 4 * YY * U)
+  var yyu4 = yy.redMul(u);
+  yyu4 = yyu4.redIAdd(yyu4);
+  yyu4 = yyu4.redIAdd(yyu4);
+  var nx = this.x.redMul(ee).redISub(yyu4);
+  nx = nx.redIAdd(nx);
+  nx = nx.redIAdd(nx);
+  // Y3 = 8 * Y1 * (U * (T - U) - E * EE)
+  var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee)));
+  ny = ny.redIAdd(ny);
+  ny = ny.redIAdd(ny);
+  ny = ny.redIAdd(ny);
+  // Z3 = (Z1 + E)^2 - ZZ - EE
+  var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee);
 
-    j++
-  }
+  return this.curve.jpoint(nx, ny, nz);
+};
 
-  while (j < 16) loop(M.readInt32BE(j * 4))
-  while (j < 64) loop(calcW())
+JPoint.prototype.mul = function mul(k, kbase) {
+  k = new BN(k, kbase);
 
-  this._a = (a + this._a) | 0
-  this._b = (b + this._b) | 0
-  this._c = (c + this._c) | 0
-  this._d = (d + this._d) | 0
-  this._e = (e + this._e) | 0
-  this._f = (f + this._f) | 0
-  this._g = (g + this._g) | 0
-  this._h = (h + this._h) | 0
-}
+  return this.curve._wnafMul(this, k);
+};
 
-Sha256.prototype._hash = function () {
-  var H = new Buffer(32)
+JPoint.prototype.eq = function eq(p) {
+  if (p.type === 'affine')
+    return this.eq(p.toJ());
 
-  H.writeInt32BE(this._a, 0)
-  H.writeInt32BE(this._b, 4)
-  H.writeInt32BE(this._c, 8)
-  H.writeInt32BE(this._d, 12)
-  H.writeInt32BE(this._e, 16)
-  H.writeInt32BE(this._f, 20)
-  H.writeInt32BE(this._g, 24)
-  H.writeInt32BE(this._h, 28)
+  if (this === p)
+    return true;
 
-  return H
-}
+  // x1 * z2^2 == x2 * z1^2
+  var z2 = this.z.redSqr();
+  var pz2 = p.z.redSqr();
+  if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0)
+    return false;
 
-module.exports = Sha256
+  // y1 * z2^3 == y2 * z1^3
+  var z3 = z2.redMul(this.z);
+  var pz3 = pz2.redMul(p.z);
+  return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0;
+};
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],43:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var SHA512 = require('./sha512')
-var Hash = require('./hash')
+JPoint.prototype.eqXToP = function eqXToP(x) {
+  var zs = this.z.redSqr();
+  var rx = x.toRed(this.curve.red).redMul(zs);
+  if (this.x.cmp(rx) === 0)
+    return true;
 
-var W = new Array(160)
+  var xc = x.clone();
+  var t = this.curve.redN.redMul(zs);
+  for (;;) {
+    xc.iadd(this.curve.n);
+    if (xc.cmp(this.curve.p) >= 0)
+      return false;
 
-function Sha384 () {
-  this.init()
-  this._w = W
+    rx.redIAdd(t);
+    if (this.x.cmp(rx) === 0)
+      return true;
+  }
+  return false;
+};
 
-  Hash.call(this, 128, 112)
-}
+JPoint.prototype.inspect = function inspect() {
+  if (this.isInfinity())
+    return '<EC JPoint Infinity>';
+  return '<EC JPoint x: ' + this.x.toString(16, 2) +
+      ' y: ' + this.y.toString(16, 2) +
+      ' z: ' + this.z.toString(16, 2) + '>';
+};
 
-inherits(Sha384, SHA512)
+JPoint.prototype.isInfinity = function isInfinity() {
+  // XXX This code assumes that zero is always zero in red
+  return this.z.cmpn(0) === 0;
+};
 
-Sha384.prototype.init = function () {
-  this._a = 0xcbbb9d5d | 0
-  this._b = 0x629a292a | 0
-  this._c = 0x9159015a | 0
-  this._d = 0x152fecd8 | 0
-  this._e = 0x67332667 | 0
-  this._f = 0x8eb44a87 | 0
-  this._g = 0xdb0c2e0d | 0
-  this._h = 0x47b5481d | 0
-
-  this._al = 0xc1059ed8 | 0
-  this._bl = 0x367cd507 | 0
-  this._cl = 0x3070dd17 | 0
-  this._dl = 0xf70e5939 | 0
-  this._el = 0xffc00b31 | 0
-  this._fl = 0x68581511 | 0
-  this._gl = 0x64f98fa7 | 0
-  this._hl = 0xbefa4fa4 | 0
+},{"../../elliptic":97,"../curve":100,"bn.js":81,"inherits":121}],103:[function(require,module,exports){
+'use strict';
 
-  return this
-}
+var curves = exports;
 
-Sha384.prototype._hash = function () {
-  var H = new Buffer(48)
+var hash = require('hash.js');
+var elliptic = require('../elliptic');
 
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
-  }
+var assert = elliptic.utils.assert;
 
-  writeInt64BE(this._a, this._al, 0)
-  writeInt64BE(this._b, this._bl, 8)
-  writeInt64BE(this._c, this._cl, 16)
-  writeInt64BE(this._d, this._dl, 24)
-  writeInt64BE(this._e, this._el, 32)
-  writeInt64BE(this._f, this._fl, 40)
+function PresetCurve(options) {
+  if (options.type === 'short')
+    this.curve = new elliptic.curve.short(options);
+  else if (options.type === 'edwards')
+    this.curve = new elliptic.curve.edwards(options);
+  else
+    this.curve = new elliptic.curve.mont(options);
+  this.g = this.curve.g;
+  this.n = this.curve.n;
+  this.hash = options.hash;
 
-  return H
+  assert(this.g.validate(), 'Invalid curve');
+  assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O');
 }
+curves.PresetCurve = PresetCurve;
 
-module.exports = Sha384
-
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"./sha512":44,"buffer":7,"inherits":35}],44:[function(require,module,exports){
-(function (Buffer){
-var inherits = require('inherits')
-var Hash = require('./hash')
+function defineCurve(name, options) {
+  Object.defineProperty(curves, name, {
+    configurable: true,
+    enumerable: true,
+    get: function() {
+      var curve = new PresetCurve(options);
+      Object.defineProperty(curves, name, {
+        configurable: true,
+        enumerable: true,
+        value: curve
+      });
+      return curve;
+    }
+  });
+}
 
-var K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-]
+defineCurve('p192', {
+  type: 'short',
+  prime: 'p192',
+  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
+  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
+  b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1',
+  n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831',
+  hash: hash.sha256,
+  gRed: false,
+  g: [
+    '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012',
+    '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811'
+  ]
+});
 
-var W = new Array(160)
+defineCurve('p224', {
+  type: 'short',
+  prime: 'p224',
+  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
+  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
+  b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4',
+  n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d',
+  hash: hash.sha256,
+  gRed: false,
+  g: [
+    'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21',
+    'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34'
+  ]
+});
 
-function Sha512 () {
-  this.init()
-  this._w = W
+defineCurve('p256', {
+  type: 'short',
+  prime: null,
+  p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff',
+  a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc',
+  b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b',
+  n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551',
+  hash: hash.sha256,
+  gRed: false,
+  g: [
+    '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296',
+    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5'
+  ]
+});
 
-  Hash.call(this, 128, 112)
-}
+defineCurve('p384', {
+  type: 'short',
+  prime: null,
+  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'fffffffe ffffffff 00000000 00000000 ffffffff',
+  a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'fffffffe ffffffff 00000000 00000000 fffffffc',
+  b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' +
+     '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef',
+  n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' +
+     'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973',
+  hash: hash.sha384,
+  gRed: false,
+  g: [
+    'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' +
+    '5502f25d bf55296c 3a545e38 72760ab7',
+    '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' +
+    '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f'
+  ]
+});
 
-inherits(Sha512, Hash)
+defineCurve('p521', {
+  type: 'short',
+  prime: null,
+  p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'ffffffff ffffffff ffffffff ffffffff ffffffff',
+  a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'ffffffff ffffffff ffffffff ffffffff fffffffc',
+  b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' +
+     '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' +
+     '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00',
+  n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' +
+     'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' +
+     'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409',
+  hash: hash.sha512,
+  gRed: false,
+  g: [
+    '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' +
+    '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' +
+    'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66',
+    '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' +
+    '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' +
+    '3fad0761 353c7086 a272c240 88be9476 9fd16650'
+  ]
+});
 
-Sha512.prototype.init = function () {
-  this._a = 0x6a09e667 | 0
-  this._b = 0xbb67ae85 | 0
-  this._c = 0x3c6ef372 | 0
-  this._d = 0xa54ff53a | 0
-  this._e = 0x510e527f | 0
-  this._f = 0x9b05688c | 0
-  this._g = 0x1f83d9ab | 0
-  this._h = 0x5be0cd19 | 0
-
-  this._al = 0xf3bcc908 | 0
-  this._bl = 0x84caa73b | 0
-  this._cl = 0xfe94f82b | 0
-  this._dl = 0x5f1d36f1 | 0
-  this._el = 0xade682d1 | 0
-  this._fl = 0x2b3e6c1f | 0
-  this._gl = 0xfb41bd6b | 0
-  this._hl = 0x137e2179 | 0
+defineCurve('curve25519', {
+  type: 'mont',
+  prime: 'p25519',
+  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
+  a: '76d06',
+  b: '1',
+  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
+  hash: hash.sha256,
+  gRed: false,
+  g: [
+    '9'
+  ]
+});
 
-  return this
-}
+defineCurve('ed25519', {
+  type: 'edwards',
+  prime: 'p25519',
+  p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed',
+  a: '-1',
+  c: '1',
+  // -121665 * (121666^(-1)) (mod P)
+  d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3',
+  n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed',
+  hash: hash.sha256,
+  gRed: false,
+  g: [
+    '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a',
 
-function S (X, Xl, n) {
-  return (X >>> n) | (Xl << (32 - n))
-}
+    // 4/5
+    '6666666666666666666666666666666666666666666666666666666666666658'
+  ]
+});
 
-function Ch (x, y, z) {
-  return ((x & y) ^ ((~x) & z))
+var pre;
+try {
+  pre = require('./precomputed/secp256k1');
+} catch (e) {
+  pre = undefined;
 }
 
-function Maj (x, y, z) {
-  return ((x & y) ^ (x & z) ^ (y & z))
-}
+defineCurve('secp256k1', {
+  type: 'short',
+  prime: 'k256',
+  p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f',
+  a: '0',
+  b: '7',
+  n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141',
+  h: '1',
+  hash: hash.sha256,
 
-Sha512.prototype._update = function (M) {
-  var W = this._w
+  // Precomputed endomorphism
+  beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee',
+  lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72',
+  basis: [
+    {
+      a: '3086d221a7d46bcde86c90e49284eb15',
+      b: '-e4437ed6010e88286f547fa90abfe4c3'
+    },
+    {
+      a: '114ca50f7a8e2f3f657c1108d9d44cfd8',
+      b: '3086d221a7d46bcde86c90e49284eb15'
+    }
+  ],
 
-  var a = this._a | 0
-  var b = this._b | 0
-  var c = this._c | 0
-  var d = this._d | 0
-  var e = this._e | 0
-  var f = this._f | 0
-  var g = this._g | 0
-  var h = this._h | 0
+  gRed: false,
+  g: [
+    '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798',
+    '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8',
+    pre
+  ]
+});
 
-  var al = this._al | 0
-  var bl = this._bl | 0
-  var cl = this._cl | 0
-  var dl = this._dl | 0
-  var el = this._el | 0
-  var fl = this._fl | 0
-  var gl = this._gl | 0
-  var hl = this._hl | 0
+},{"../elliptic":97,"./precomputed/secp256k1":110,"hash.js":114}],104:[function(require,module,exports){
+'use strict';
 
-  var i = 0, j = 0
-  var Wi, Wil
-  function calcW () {
-    var x = W[j - 15 * 2]
-    var xl = W[j - 15 * 2 + 1]
-    var gamma0 = S(x, xl, 1) ^ S(x, xl, 8) ^ (x >>> 7)
-    var gamma0l = S(xl, x, 1) ^ S(xl, x, 8) ^ S(xl, x, 7)
+var BN = require('bn.js');
+var HmacDRBG = require('hmac-drbg');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
 
-    x = W[j - 2 * 2]
-    xl = W[j - 2 * 2 + 1]
-    var gamma1 = S(x, xl, 19) ^ S(xl, x, 29) ^ (x >>> 6)
-    var gamma1l = S(xl, x, 19) ^ S(x, xl, 29) ^ S(xl, x, 6)
+var KeyPair = require('./key');
+var Signature = require('./signature');
 
-    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
-    var Wi7 = W[j - 7 * 2]
-    var Wi7l = W[j - 7 * 2 + 1]
+function EC(options) {
+  if (!(this instanceof EC))
+    return new EC(options);
 
-    var Wi16 = W[j - 16 * 2]
-    var Wi16l = W[j - 16 * 2 + 1]
+  // Shortcut `elliptic.ec(curve-name)`
+  if (typeof options === 'string') {
+    assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options);
 
-    Wil = gamma0l + Wi7l
-    Wi = gamma0 + Wi7 + ((Wil >>> 0) < (gamma0l >>> 0) ? 1 : 0)
-    Wil = Wil + gamma1l
-    Wi = Wi + gamma1 + ((Wil >>> 0) < (gamma1l >>> 0) ? 1 : 0)
-    Wil = Wil + Wi16l
-    Wi = Wi + Wi16 + ((Wil >>> 0) < (Wi16l >>> 0) ? 1 : 0)
+    options = elliptic.curves[options];
   }
 
-  function loop () {
-    W[j] = Wi
-    W[j + 1] = Wil
-
-    var maj = Maj(a, b, c)
-    var majl = Maj(al, bl, cl)
-
-    var sigma0h = S(a, al, 28) ^ S(al, a, 2) ^ S(al, a, 7)
-    var sigma0l = S(al, a, 28) ^ S(a, al, 2) ^ S(a, al, 7)
-    var sigma1h = S(e, el, 14) ^ S(e, el, 18) ^ S(el, e, 9)
-    var sigma1l = S(el, e, 14) ^ S(el, e, 18) ^ S(e, el, 9)
-
-    // t1 = h + sigma1 + ch + K[i] + W[i]
-    var Ki = K[j]
-    var Kil = K[j + 1]
+  // Shortcut for `elliptic.ec(elliptic.curves.curveName)`
+  if (options instanceof elliptic.curves.PresetCurve)
+    options = { curve: options };
 
-    var ch = Ch(e, f, g)
-    var chl = Ch(el, fl, gl)
+  this.curve = options.curve.curve;
+  this.n = this.curve.n;
+  this.nh = this.n.ushrn(1);
+  this.g = this.curve.g;
 
-    var t1l = hl + sigma1l
-    var t1 = h + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0)
-    t1l = t1l + chl
-    t1 = t1 + ch + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0)
-    t1l = t1l + Kil
-    t1 = t1 + Ki + ((t1l >>> 0) < (Kil >>> 0) ? 1 : 0)
-    t1l = t1l + Wil
-    t1 = t1 + Wi + ((t1l >>> 0) < (Wil >>> 0) ? 1 : 0)
+  // Point on curve
+  this.g = options.curve.g;
+  this.g.precompute(options.curve.n.bitLength() + 1);
 
-    // t2 = sigma0 + maj
-    var t2l = sigma0l + majl
-    var t2 = sigma0h + maj + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0)
+  // Hash for function for DRBG
+  this.hash = options.hash || options.curve.hash;
+}
+module.exports = EC;
 
-    h = g
-    hl = gl
-    g = f
-    gl = fl
-    f = e
-    fl = el
-    el = (dl + t1l) | 0
-    e = (d + t1 + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
-    d = c
-    dl = cl
-    c = b
-    cl = bl
-    b = a
-    bl = al
-    al = (t1l + t2l) | 0
-    a = (t1 + t2 + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0
+EC.prototype.keyPair = function keyPair(options) {
+  return new KeyPair(this, options);
+};
 
-    i++
-    j += 2
-  }
+EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) {
+  return KeyPair.fromPrivate(this, priv, enc);
+};
 
-  while (i < 16) {
-    Wi = M.readInt32BE(j * 4)
-    Wil = M.readInt32BE(j * 4 + 4)
+EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) {
+  return KeyPair.fromPublic(this, pub, enc);
+};
 
-    loop()
-  }
+EC.prototype.genKeyPair = function genKeyPair(options) {
+  if (!options)
+    options = {};
 
-  while (i < 80) {
-    calcW()
-    loop()
-  }
+  // Instantiate Hmac_DRBG
+  var drbg = new HmacDRBG({
+    hash: this.hash,
+    pers: options.pers,
+    persEnc: options.persEnc || 'utf8',
+    entropy: options.entropy || elliptic.rand(this.hash.hmacStrength),
+    entropyEnc: options.entropy && options.entropyEnc || 'utf8',
+    nonce: this.n.toArray()
+  });
 
-  this._al = (this._al + al) | 0
-  this._bl = (this._bl + bl) | 0
-  this._cl = (this._cl + cl) | 0
-  this._dl = (this._dl + dl) | 0
-  this._el = (this._el + el) | 0
-  this._fl = (this._fl + fl) | 0
-  this._gl = (this._gl + gl) | 0
-  this._hl = (this._hl + hl) | 0
+  var bytes = this.n.byteLength();
+  var ns2 = this.n.sub(new BN(2));
+  do {
+    var priv = new BN(drbg.generate(bytes));
+    if (priv.cmp(ns2) > 0)
+      continue;
 
-  this._a = (this._a + a + ((this._al >>> 0) < (al >>> 0) ? 1 : 0)) | 0
-  this._b = (this._b + b + ((this._bl >>> 0) < (bl >>> 0) ? 1 : 0)) | 0
-  this._c = (this._c + c + ((this._cl >>> 0) < (cl >>> 0) ? 1 : 0)) | 0
-  this._d = (this._d + d + ((this._dl >>> 0) < (dl >>> 0) ? 1 : 0)) | 0
-  this._e = (this._e + e + ((this._el >>> 0) < (el >>> 0) ? 1 : 0)) | 0
-  this._f = (this._f + f + ((this._fl >>> 0) < (fl >>> 0) ? 1 : 0)) | 0
-  this._g = (this._g + g + ((this._gl >>> 0) < (gl >>> 0) ? 1 : 0)) | 0
-  this._h = (this._h + h + ((this._hl >>> 0) < (hl >>> 0) ? 1 : 0)) | 0
-}
+    priv.iaddn(1);
+    return this.keyFromPrivate(priv);
+  } while (true);
+};
 
-Sha512.prototype._hash = function () {
-  var H = new Buffer(64)
+EC.prototype._truncateToN = function truncateToN(msg, truncOnly) {
+  var delta = msg.byteLength() * 8 - this.n.bitLength();
+  if (delta > 0)
+    msg = msg.ushrn(delta);
+  if (!truncOnly && msg.cmp(this.n) >= 0)
+    return msg.sub(this.n);
+  else
+    return msg;
+};
 
-  function writeInt64BE (h, l, offset) {
-    H.writeInt32BE(h, offset)
-    H.writeInt32BE(l, offset + 4)
+EC.prototype.sign = function sign(msg, key, enc, options) {
+  if (typeof enc === 'object') {
+    options = enc;
+    enc = null;
   }
+  if (!options)
+    options = {};
 
-  writeInt64BE(this._a, this._al, 0)
-  writeInt64BE(this._b, this._bl, 8)
-  writeInt64BE(this._c, this._cl, 16)
-  writeInt64BE(this._d, this._dl, 24)
-  writeInt64BE(this._e, this._el, 32)
-  writeInt64BE(this._f, this._fl, 40)
-  writeInt64BE(this._g, this._gl, 48)
-  writeInt64BE(this._h, this._hl, 56)
-
-  return H
-}
-
-module.exports = Sha512
+  key = this.keyFromPrivate(key, enc);
+  msg = this._truncateToN(new BN(msg, 16));
 
-}).call(this,require("buffer").Buffer)
-},{"./hash":37,"buffer":7,"inherits":35}],45:[function(require,module,exports){
-(function (Buffer){
-'use strict';
-var createHash = require('create-hash/browser');
-var inherits = require('inherits')
+  // Zero-extend key to provide enough entropy
+  var bytes = this.n.byteLength();
+  var bkey = key.getPrivate().toArray('be', bytes);
 
-var Transform = require('stream').Transform
+  // Zero-extend nonce to have the same byte size as N
+  var nonce = msg.toArray('be', bytes);
 
-var ZEROS = new Buffer(128)
-ZEROS.fill(0)
+  // Instantiate Hmac_DRBG
+  var drbg = new HmacDRBG({
+    hash: this.hash,
+    entropy: bkey,
+    nonce: nonce,
+    pers: options.pers,
+    persEnc: options.persEnc || 'utf8'
+  });
 
-function Hmac(alg, key) {
-  Transform.call(this)
+  // Number of bytes to generate
+  var ns1 = this.n.sub(new BN(1));
 
-  if (typeof key === 'string') {
-    key = new Buffer(key)
-  }
+  for (var iter = 0; true; iter++) {
+    var k = options.k ?
+        options.k(iter) :
+        new BN(drbg.generate(this.n.byteLength()));
+    k = this._truncateToN(k, true);
+    if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0)
+      continue;
 
-  var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64
+    var kp = this.g.mul(k);
+    if (kp.isInfinity())
+      continue;
 
-  this._alg = alg
-  this._key = key
+    var kpX = kp.getX();
+    var r = kpX.umod(this.n);
+    if (r.cmpn(0) === 0)
+      continue;
 
-  if (key.length > blocksize) {
-    key = createHash(alg).update(key).digest()
+    var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg));
+    s = s.umod(this.n);
+    if (s.cmpn(0) === 0)
+      continue;
 
-  } else if (key.length < blocksize) {
-    key = Buffer.concat([key, ZEROS], blocksize)
-  }
+    var recoveryParam = (kp.getY().isOdd() ? 1 : 0) |
+                        (kpX.cmp(r) !== 0 ? 2 : 0);
 
-  var ipad = this._ipad = new Buffer(blocksize)
-  var opad = this._opad = new Buffer(blocksize)
+    // Use complement of `s`, if it is > `n / 2`
+    if (options.canonical && s.cmp(this.nh) > 0) {
+      s = this.n.sub(s);
+      recoveryParam ^= 1;
+    }
 
-  for (var i = 0; i < blocksize; i++) {
-    ipad[i] = key[i] ^ 0x36
-    opad[i] = key[i] ^ 0x5C
+    return new Signature({ r: r, s: s, recoveryParam: recoveryParam });
   }
+};
 
-  this._hash = createHash(alg).update(ipad)
-}
-
-inherits(Hmac, Transform)
+EC.prototype.verify = function verify(msg, signature, key, enc) {
+  msg = this._truncateToN(new BN(msg, 16));
+  key = this.keyFromPublic(key, enc);
+  signature = new Signature(signature, 'hex');
 
-Hmac.prototype.update = function (data, enc) {
-  this._hash.update(data, enc)
+  // Perform primitive values validation
+  var r = signature.r;
+  var s = signature.s;
+  if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0)
+    return false;
+  if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0)
+    return false;
 
-  return this
-}
+  // Validate signature
+  var sinv = s.invm(this.n);
+  var u1 = sinv.mul(msg).umod(this.n);
+  var u2 = sinv.mul(r).umod(this.n);
 
-Hmac.prototype._transform = function (data, _, next) {
-  this._hash.update(data)
+  if (!this.curve._maxwellTrick) {
+    var p = this.g.mulAdd(u1, key.getPublic(), u2);
+    if (p.isInfinity())
+      return false;
 
-  next()
-}
+    return p.getX().umod(this.n).cmp(r) === 0;
+  }
 
-Hmac.prototype._flush = function (next) {
-  this.push(this.digest())
+  // NOTE: Greg Maxwell's trick, inspired by:
+  // https://git.io/vad3K
 
-  next()
-}
+  var p = this.g.jmulAdd(u1, key.getPublic(), u2);
+  if (p.isInfinity())
+    return false;
 
-Hmac.prototype.digest = function (enc) {
-  var h = this._hash.digest()
+  // Compare `p.x` of Jacobian point with `r`,
+  // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the
+  // inverse of `p.z^2`
+  return p.eqXToP(r);
+};
 
-  return createHash(this._alg).update(this._opad).update(h).digest(enc)
-}
+EC.prototype.recoverPubKey = function(msg, signature, j, enc) {
+  assert((3 & j) === j, 'The recovery param is more than two bits');
+  signature = new Signature(signature, enc);
 
-module.exports = function createHmac(alg, key) {
-  return new Hmac(alg, key)
-}
+  var n = this.n;
+  var e = new BN(msg);
+  var r = signature.r;
+  var s = signature.s;
 
-}).call(this,require("buffer").Buffer)
-},{"buffer":7,"create-hash/browser":32,"inherits":46,"stream":26}],46:[function(require,module,exports){
-arguments[4][12][0].apply(exports,arguments)
-},{"dup":12}],47:[function(require,module,exports){
-var assert = require('assert')
-var BigInteger = require('bigi')
+  // A set LSB signifies that the y-coordinate is odd
+  var isYOdd = j & 1;
+  var isSecondKey = j >> 1;
+  if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey)
+    throw new Error('Unable to find sencond key candinate');
 
-var Point = require('./point')
+  // 1.1. Let x = r + jn.
+  if (isSecondKey)
+    r = this.curve.pointFromX(r.add(this.curve.n), isYOdd);
+  else
+    r = this.curve.pointFromX(r, isYOdd);
 
-function Curve(p, a, b, Gx, Gy, n, h) {
-  this.p = p
-  this.a = a
-  this.b = b
-  this.G = Point.fromAffine(this, Gx, Gy)
-  this.n = n
-  this.h = h
+  var rInv = signature.r.invm(n);
+  var s1 = n.sub(e).mul(rInv).umod(n);
+  var s2 = s.mul(rInv).umod(n);
 
-  this.infinity = new Point(this, null, null, BigInteger.ZERO)
+  // 1.6.1 Compute Q = r^-1 (sR -  eG)
+  //               Q = r^-1 (sR + -eG)
+  return this.g.mulAdd(s1, r, s2);
+};
 
-  // result caching
-  this.pOverFour = p.add(BigInteger.ONE).shiftRight(2)
-}
+EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) {
+  signature = new Signature(signature, enc);
+  if (signature.recoveryParam !== null)
+    return signature.recoveryParam;
 
-Curve.prototype.pointFromX = function(isOdd, x) {
-  var alpha = x.pow(3).add(this.a.multiply(x)).add(this.b).mod(this.p)
-  var beta = alpha.modPow(this.pOverFour, this.p) // XXX: not compatible with all curves
+  for (var i = 0; i < 4; i++) {
+    var Qprime;
+    try {
+      Qprime = this.recoverPubKey(e, signature, i);
+    } catch (e) {
+      continue;
+    }
 
-  var y = beta
-  if (beta.isEven() ^ !isOdd) {
-    y = this.p.subtract(y) // -y % p
+    if (Qprime.eq(Q))
+      return i;
   }
+  throw new Error('Unable to find valid recovery factor');
+};
 
-  return Point.fromAffine(this, x, y)
-}
-
-Curve.prototype.isInfinity = function(Q) {
-  if (Q === this.infinity) return true
-
-  return Q.z.signum() === 0 && Q.y.signum() !== 0
-}
-
-Curve.prototype.isOnCurve = function(Q) {
-  if (this.isInfinity(Q)) return true
+},{"../../elliptic":97,"./key":105,"./signature":106,"bn.js":81,"hmac-drbg":120}],105:[function(require,module,exports){
+'use strict';
 
-  var x = Q.affineX
-  var y = Q.affineY
-  var a = this.a
-  var b = this.b
-  var p = this.p
+var BN = require('bn.js');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
 
-  // Check that xQ and yQ are integers in the interval [0, p - 1]
-  if (x.signum() < 0 || x.compareTo(p) >= 0) return false
-  if (y.signum() < 0 || y.compareTo(p) >= 0) return false
+function KeyPair(ec, options) {
+  this.ec = ec;
+  this.priv = null;
+  this.pub = null;
 
-  // and check that y^2 = x^3 + ax + b (mod p)
-  var lhs = y.square().mod(p)
-  var rhs = x.pow(3).add(a.multiply(x)).add(b).mod(p)
-  return lhs.equals(rhs)
+  // KeyPair(ec, { priv: ..., pub: ... })
+  if (options.priv)
+    this._importPrivate(options.priv, options.privEnc);
+  if (options.pub)
+    this._importPublic(options.pub, options.pubEnc);
 }
+module.exports = KeyPair;
 
-/**
- * Validate an elliptic curve point.
- *
- * See SEC 1, section 3.2.2.1: Elliptic Curve Public Key Validation Primitive
- */
-Curve.prototype.validate = function(Q) {
-  // Check Q != O
-  assert(!this.isInfinity(Q), 'Point is at infinity')
-  assert(this.isOnCurve(Q), 'Point is not on the curve')
-
-  // Check nQ = O (where Q is a scalar multiple of G)
-  var nQ = Q.multiply(this.n)
-  assert(this.isInfinity(nQ), 'Point is not a scalar multiple of G')
+KeyPair.fromPublic = function fromPublic(ec, pub, enc) {
+  if (pub instanceof KeyPair)
+    return pub;
 
-  return true
-}
+  return new KeyPair(ec, {
+    pub: pub,
+    pubEnc: enc
+  });
+};
 
-module.exports = Curve
+KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) {
+  if (priv instanceof KeyPair)
+    return priv;
 
-},{"./point":51,"assert":5,"bigi":3}],48:[function(require,module,exports){
-module.exports={
-  "secp128r1": {
-    "p": "fffffffdffffffffffffffffffffffff",
-    "a": "fffffffdfffffffffffffffffffffffc",
-    "b": "e87579c11079f43dd824993c2cee5ed3",
-    "n": "fffffffe0000000075a30d1b9038a115",
-    "h": "01",
-    "Gx": "161ff7528b899b2d0c28607ca52c5b86",
-    "Gy": "cf5ac8395bafeb13c02da292dded7a83"
-  },
-  "secp160k1": {
-    "p": "fffffffffffffffffffffffffffffffeffffac73",
-    "a": "00",
-    "b": "07",
-    "n": "0100000000000000000001b8fa16dfab9aca16b6b3",
-    "h": "01",
-    "Gx": "3b4c382ce37aa192a4019e763036f4f5dd4d7ebb",
-    "Gy": "938cf935318fdced6bc28286531733c3f03c4fee"
-  },
-  "secp160r1": {
-    "p": "ffffffffffffffffffffffffffffffff7fffffff",
-    "a": "ffffffffffffffffffffffffffffffff7ffffffc",
-    "b": "1c97befc54bd7a8b65acf89f81d4d4adc565fa45",
-    "n": "0100000000000000000001f4c8f927aed3ca752257",
-    "h": "01",
-    "Gx": "4a96b5688ef573284664698968c38bb913cbfc82",
-    "Gy": "23a628553168947d59dcc912042351377ac5fb32"
-  },
-  "secp192k1": {
-    "p": "fffffffffffffffffffffffffffffffffffffffeffffee37",
-    "a": "00",
-    "b": "03",
-    "n": "fffffffffffffffffffffffe26f2fc170f69466a74defd8d",
-    "h": "01",
-    "Gx": "db4ff10ec057e9ae26b07d0280b7f4341da5d1b1eae06c7d",
-    "Gy": "9b2f2f6d9c5628a7844163d015be86344082aa88d95e2f9d"
-  },
-  "secp192r1": {
-    "p": "fffffffffffffffffffffffffffffffeffffffffffffffff",
-    "a": "fffffffffffffffffffffffffffffffefffffffffffffffc",
-    "b": "64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
-    "n": "ffffffffffffffffffffffff99def836146bc9b1b4d22831",
-    "h": "01",
-    "Gx": "188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
-    "Gy": "07192b95ffc8da78631011ed6b24cdd573f977a11e794811"
-  },
-  "secp256k1": {
-    "p": "fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
-    "a": "00",
-    "b": "07",
-    "n": "fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
-    "h": "01",
-    "Gx": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
-    "Gy": "483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"
-  },
-  "secp256r1": {
-    "p": "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
-    "a": "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
-    "b": "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
-    "n": "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
-    "h": "01",
-    "Gx": "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
-    "Gy": "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5"
+  return new KeyPair(ec, {
+    priv: priv,
+    privEnc: enc
+  });
+};
+
+KeyPair.prototype.validate = function validate() {
+  var pub = this.getPublic();
+
+  if (pub.isInfinity())
+    return { result: false, reason: 'Invalid public key' };
+  if (!pub.validate())
+    return { result: false, reason: 'Public key is not a point' };
+  if (!pub.mul(this.ec.curve.n).isInfinity())
+    return { result: false, reason: 'Public key * N != O' };
+
+  return { result: true, reason: null };
+};
+
+KeyPair.prototype.getPublic = function getPublic(compact, enc) {
+  // compact is optional argument
+  if (typeof compact === 'string') {
+    enc = compact;
+    compact = null;
   }
-}
 
-},{}],49:[function(require,module,exports){
-var Point = require('./point')
-var Curve = require('./curve')
+  if (!this.pub)
+    this.pub = this.ec.g.mul(this.priv);
 
-var getCurveByName = require('./names')
+  if (!enc)
+    return this.pub;
 
-module.exports = {
-  Curve: Curve,
-  Point: Point,
-  getCurveByName: getCurveByName
-}
+  return this.pub.encode(enc, compact);
+};
 
-},{"./curve":47,"./names":50,"./point":51}],50:[function(require,module,exports){
-var BigInteger = require('bigi')
+KeyPair.prototype.getPrivate = function getPrivate(enc) {
+  if (enc === 'hex')
+    return this.priv.toString(16, 2);
+  else
+    return this.priv;
+};
 
-var curves = require('./curves')
-var Curve = require('./curve')
+KeyPair.prototype._importPrivate = function _importPrivate(key, enc) {
+  this.priv = new BN(key, enc || 16);
 
-function getCurveByName(name) {
-  var curve = curves[name]
-  if (!curve) return null
+  // Ensure that the priv won't be bigger than n, otherwise we may fail
+  // in fixed multiplication method
+  this.priv = this.priv.umod(this.ec.curve.n);
+};
 
-  var p = new BigInteger(curve.p, 16)
-  var a = new BigInteger(curve.a, 16)
-  var b = new BigInteger(curve.b, 16)
-  var n = new BigInteger(curve.n, 16)
-  var h = new BigInteger(curve.h, 16)
-  var Gx = new BigInteger(curve.Gx, 16)
-  var Gy = new BigInteger(curve.Gy, 16)
+KeyPair.prototype._importPublic = function _importPublic(key, enc) {
+  if (key.x || key.y) {
+    // Montgomery points only have an `x` coordinate.
+    // Weierstrass/Edwards points on the other hand have both `x` and
+    // `y` coordinates.
+    if (this.ec.curve.type === 'mont') {
+      assert(key.x, 'Need x coordinate');
+    } else if (this.ec.curve.type === 'short' ||
+               this.ec.curve.type === 'edwards') {
+      assert(key.x && key.y, 'Need both x and y coordinate');
+    }
+    this.pub = this.ec.curve.point(key.x, key.y);
+    return;
+  }
+  this.pub = this.ec.curve.decodePoint(key, enc);
+};
 
-  return new Curve(p, a, b, Gx, Gy, n, h)
-}
+// ECDH
+KeyPair.prototype.derive = function derive(pub) {
+  return pub.mul(this.priv).getX();
+};
 
-module.exports = getCurveByName
+// ECDSA
+KeyPair.prototype.sign = function sign(msg, enc, options) {
+  return this.ec.sign(msg, this, enc, options);
+};
 
-},{"./curve":47,"./curves":48,"bigi":3}],51:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var BigInteger = require('bigi')
+KeyPair.prototype.verify = function verify(msg, signature) {
+  return this.ec.verify(msg, signature, this);
+};
 
-var THREE = BigInteger.valueOf(3)
+KeyPair.prototype.inspect = function inspect() {
+  return '<Key priv: ' + (this.priv && this.priv.toString(16, 2)) +
+         ' pub: ' + (this.pub && this.pub.inspect()) + ' >';
+};
 
-function Point(curve, x, y, z) {
-  assert.notStrictEqual(z, undefined, 'Missing Z coordinate')
+},{"../../elliptic":97,"bn.js":81}],106:[function(require,module,exports){
+'use strict';
 
-  this.curve = curve
-  this.x = x
-  this.y = y
-  this.z = z
-  this._zInv = null
+var BN = require('bn.js');
 
-  this.compressed = true
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
+
+function Signature(options, enc) {
+  if (options instanceof Signature)
+    return options;
+
+  if (this._importDER(options, enc))
+    return;
+
+  assert(options.r && options.s, 'Signature without r or s');
+  this.r = new BN(options.r, 16);
+  this.s = new BN(options.s, 16);
+  if (options.recoveryParam === undefined)
+    this.recoveryParam = null;
+  else
+    this.recoveryParam = options.recoveryParam;
 }
+module.exports = Signature;
 
-Object.defineProperty(Point.prototype, 'zInv', {
-  get: function() {
-    if (this._zInv === null) {
-      this._zInv = this.z.modInverse(this.curve.p)
-    }
+function Position() {
+  this.place = 0;
+}
 
-    return this._zInv
+function getLength(buf, p) {
+  var initial = buf[p.place++];
+  if (!(initial & 0x80)) {
+    return initial;
   }
-})
-
-Object.defineProperty(Point.prototype, 'affineX', {
-  get: function() {
-    return this.x.multiply(this.zInv).mod(this.curve.p)
+  var octetLen = initial & 0xf;
+  var val = 0;
+  for (var i = 0, off = p.place; i < octetLen; i++, off++) {
+    val <<= 8;
+    val |= buf[off];
   }
-})
+  p.place = off;
+  return val;
+}
 
-Object.defineProperty(Point.prototype, 'affineY', {
-  get: function() {
-    return this.y.multiply(this.zInv).mod(this.curve.p)
+function rmPadding(buf) {
+  var i = 0;
+  var len = buf.length - 1;
+  while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) {
+    i++;
   }
-})
-
-Point.fromAffine = function(curve, x, y) {
-  return new Point(curve, x, y, BigInteger.ONE)
+  if (i === 0) {
+    return buf;
+  }
+  return buf.slice(i);
 }
 
-Point.prototype.equals = function(other) {
-  if (other === this) return true
-  if (this.curve.isInfinity(this)) return this.curve.isInfinity(other)
-  if (this.curve.isInfinity(other)) return this.curve.isInfinity(this)
-
-  // u = Y2 * Z1 - Y1 * Z2
-  var u = other.y.multiply(this.z).subtract(this.y.multiply(other.z)).mod(this.curve.p)
+Signature.prototype._importDER = function _importDER(data, enc) {
+  data = utils.toArray(data, enc);
+  var p = new Position();
+  if (data[p.place++] !== 0x30) {
+    return false;
+  }
+  var len = getLength(data, p);
+  if ((len + p.place) !== data.length) {
+    return false;
+  }
+  if (data[p.place++] !== 0x02) {
+    return false;
+  }
+  var rlen = getLength(data, p);
+  var r = data.slice(p.place, rlen + p.place);
+  p.place += rlen;
+  if (data[p.place++] !== 0x02) {
+    return false;
+  }
+  var slen = getLength(data, p);
+  if (data.length !== slen + p.place) {
+    return false;
+  }
+  var s = data.slice(p.place, slen + p.place);
+  if (r[0] === 0 && (r[1] & 0x80)) {
+    r = r.slice(1);
+  }
+  if (s[0] === 0 && (s[1] & 0x80)) {
+    s = s.slice(1);
+  }
 
-  if (u.signum() !== 0) return false
+  this.r = new BN(r);
+  this.s = new BN(s);
+  this.recoveryParam = null;
 
-  // v = X2 * Z1 - X1 * Z2
-  var v = other.x.multiply(this.z).subtract(this.x.multiply(other.z)).mod(this.curve.p)
+  return true;
+};
 
-  return v.signum() === 0
+function constructLength(arr, len) {
+  if (len < 0x80) {
+    arr.push(len);
+    return;
+  }
+  var octets = 1 + (Math.log(len) / Math.LN2 >>> 3);
+  arr.push(octets | 0x80);
+  while (--octets) {
+    arr.push((len >>> (octets << 3)) & 0xff);
+  }
+  arr.push(len);
 }
 
-Point.prototype.negate = function() {
-  var y = this.curve.p.subtract(this.y)
+Signature.prototype.toDER = function toDER(enc) {
+  var r = this.r.toArray();
+  var s = this.s.toArray();
 
-  return new Point(this.curve, this.x, y, this.z)
-}
+  // Pad values
+  if (r[0] & 0x80)
+    r = [ 0 ].concat(r);
+  // Pad values
+  if (s[0] & 0x80)
+    s = [ 0 ].concat(s);
 
-Point.prototype.add = function(b) {
-  if (this.curve.isInfinity(this)) return b
-  if (this.curve.isInfinity(b)) return this
+  r = rmPadding(r);
+  s = rmPadding(s);
 
-  var x1 = this.x
-  var y1 = this.y
-  var x2 = b.x
-  var y2 = b.y
+  while (!s[0] && !(s[1] & 0x80)) {
+    s = s.slice(1);
+  }
+  var arr = [ 0x02 ];
+  constructLength(arr, r.length);
+  arr = arr.concat(r);
+  arr.push(0x02);
+  constructLength(arr, s.length);
+  var backHalf = arr.concat(s);
+  var res = [ 0x30 ];
+  constructLength(res, backHalf.length);
+  res = res.concat(backHalf);
+  return utils.encode(res, enc);
+};
 
-  // u = Y2 * Z1 - Y1 * Z2
-  var u = y2.multiply(this.z).subtract(y1.multiply(b.z)).mod(this.curve.p)
-  // v = X2 * Z1 - X1 * Z2
-  var v = x2.multiply(this.z).subtract(x1.multiply(b.z)).mod(this.curve.p)
+},{"../../elliptic":97,"bn.js":81}],107:[function(require,module,exports){
+'use strict';
 
-  if (v.signum() === 0) {
-    if (u.signum() === 0) {
-      return this.twice() // this == b, so double
-    }
+var hash = require('hash.js');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
+var parseBytes = utils.parseBytes;
+var KeyPair = require('./key');
+var Signature = require('./signature');
 
-    return this.curve.infinity // this = -b, so infinity
-  }
+function EDDSA(curve) {
+  assert(curve === 'ed25519', 'only tested with ed25519 so far');
 
-  var v2 = v.square()
-  var v3 = v2.multiply(v)
-  var x1v2 = x1.multiply(v2)
-  var zu2 = u.square().multiply(this.z)
+  if (!(this instanceof EDDSA))
+    return new EDDSA(curve);
 
-  // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
-  var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.p)
-  // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
-  var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.p)
-  // z3 = v^3 * z1 * z2
-  var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.p)
+  var curve = elliptic.curves[curve].curve;
+  this.curve = curve;
+  this.g = curve.g;
+  this.g.precompute(curve.n.bitLength() + 1);
 
-  return new Point(this.curve, x3, y3, z3)
+  this.pointClass = curve.point().constructor;
+  this.encodingLength = Math.ceil(curve.n.bitLength() / 8);
+  this.hash = hash.sha512;
 }
 
-Point.prototype.twice = function() {
-  if (this.curve.isInfinity(this)) return this
-  if (this.y.signum() === 0) return this.curve.infinity
+module.exports = EDDSA;
 
-  var x1 = this.x
-  var y1 = this.y
+/**
+* @param {Array|String} message - message bytes
+* @param {Array|String|KeyPair} secret - secret bytes or a keypair
+* @returns {Signature} - signature
+*/
+EDDSA.prototype.sign = function sign(message, secret) {
+  message = parseBytes(message);
+  var key = this.keyFromSecret(secret);
+  var r = this.hashInt(key.messagePrefix(), message);
+  var R = this.g.mul(r);
+  var Rencoded = this.encodePoint(R);
+  var s_ = this.hashInt(Rencoded, key.pubBytes(), message)
+               .mul(key.priv());
+  var S = r.add(s_).umod(this.curve.n);
+  return this.makeSignature({ R: R, S: S, Rencoded: Rencoded });
+};
 
-  var y1z1 = y1.multiply(this.z)
-  var y1sqz1 = y1z1.multiply(y1).mod(this.curve.p)
-  var a = this.curve.a
+/**
+* @param {Array} message - message bytes
+* @param {Array|String|Signature} sig - sig bytes
+* @param {Array|String|Point|KeyPair} pub - public key
+* @returns {Boolean} - true if public key matches sig of message
+*/
+EDDSA.prototype.verify = function verify(message, sig, pub) {
+  message = parseBytes(message);
+  sig = this.makeSignature(sig);
+  var key = this.keyFromPublic(pub);
+  var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message);
+  var SG = this.g.mul(sig.S());
+  var RplusAh = sig.R().add(key.pub().mul(h));
+  return RplusAh.eq(SG);
+};
 
-  // w = 3 * x1^2 + a * z1^2
-  var w = x1.square().multiply(THREE)
+EDDSA.prototype.hashInt = function hashInt() {
+  var hash = this.hash();
+  for (var i = 0; i < arguments.length; i++)
+    hash.update(arguments[i]);
+  return utils.intFromLE(hash.digest()).umod(this.curve.n);
+};
 
-  if (a.signum() !== 0) {
-    w = w.add(this.z.square().multiply(a))
-  }
+EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) {
+  return KeyPair.fromPublic(this, pub);
+};
 
-  w = w.mod(this.curve.p)
-  // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
-  var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.p)
-  // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
-  var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.pow(3)).mod(this.curve.p)
-  // z3 = 8 * (y1 * z1)^3
-  var z3 = y1z1.pow(3).shiftLeft(3).mod(this.curve.p)
+EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) {
+  return KeyPair.fromSecret(this, secret);
+};
 
-  return new Point(this.curve, x3, y3, z3)
-}
+EDDSA.prototype.makeSignature = function makeSignature(sig) {
+  if (sig instanceof Signature)
+    return sig;
+  return new Signature(this, sig);
+};
 
-// Simple NAF (Non-Adjacent Form) multiplication algorithm
-// TODO: modularize the multiplication algorithm
-Point.prototype.multiply = function(k) {
-  if (this.curve.isInfinity(this)) return this
-  if (k.signum() === 0) return this.curve.infinity
+/**
+* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2
+*
+* EDDSA defines methods for encoding and decoding points and integers. These are
+* helper convenience methods, that pass along to utility functions implied
+* parameters.
+*
+*/
+EDDSA.prototype.encodePoint = function encodePoint(point) {
+  var enc = point.getY().toArray('le', this.encodingLength);
+  enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0;
+  return enc;
+};
 
-  var e = k
-  var h = e.multiply(THREE)
+EDDSA.prototype.decodePoint = function decodePoint(bytes) {
+  bytes = utils.parseBytes(bytes);
 
-  var neg = this.negate()
-  var R = this
+  var lastIx = bytes.length - 1;
+  var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80);
+  var xIsOdd = (bytes[lastIx] & 0x80) !== 0;
 
-  for (var i = h.bitLength() - 2; i > 0; --i) {
-    R = R.twice()
+  var y = utils.intFromLE(normed);
+  return this.curve.pointFromY(y, xIsOdd);
+};
 
-    var hBit = h.testBit(i)
-    var eBit = e.testBit(i)
+EDDSA.prototype.encodeInt = function encodeInt(num) {
+  return num.toArray('le', this.encodingLength);
+};
 
-    if (hBit != eBit) {
-      R = R.add(hBit ? this : neg)
-    }
-  }
+EDDSA.prototype.decodeInt = function decodeInt(bytes) {
+  return utils.intFromLE(bytes);
+};
 
-  return R
-}
+EDDSA.prototype.isPoint = function isPoint(val) {
+  return val instanceof this.pointClass;
+};
 
-// Compute this*j + x*k (simultaneous multiplication)
-Point.prototype.multiplyTwo = function(j, x, k) {
-  var i
+},{"../../elliptic":97,"./key":108,"./signature":109,"hash.js":114}],108:[function(require,module,exports){
+'use strict';
 
-  if (j.bitLength() > k.bitLength())
-    i = j.bitLength() - 1
-  else
-    i = k.bitLength() - 1
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
+var parseBytes = utils.parseBytes;
+var cachedProperty = utils.cachedProperty;
 
-  var R = this.curve.infinity
-  var both = this.add(x)
+/**
+* @param {EDDSA} eddsa - instance
+* @param {Object} params - public/private key parameters
+*
+* @param {Array<Byte>} [params.secret] - secret seed bytes
+* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms)
+* @param {Array<Byte>} [params.pub] - public key point encoded as bytes
+*
+*/
+function KeyPair(eddsa, params) {
+  this.eddsa = eddsa;
+  this._secret = parseBytes(params.secret);
+  if (eddsa.isPoint(params.pub))
+    this._pub = params.pub;
+  else
+    this._pubBytes = parseBytes(params.pub);
+}
 
-  while (i >= 0) {
-    R = R.twice()
+KeyPair.fromPublic = function fromPublic(eddsa, pub) {
+  if (pub instanceof KeyPair)
+    return pub;
+  return new KeyPair(eddsa, { pub: pub });
+};
 
-    var jBit = j.testBit(i)
-    var kBit = k.testBit(i)
+KeyPair.fromSecret = function fromSecret(eddsa, secret) {
+  if (secret instanceof KeyPair)
+    return secret;
+  return new KeyPair(eddsa, { secret: secret });
+};
 
-    if (jBit) {
-      if (kBit) {
-        R = R.add(both)
+KeyPair.prototype.secret = function secret() {
+  return this._secret;
+};
 
-      } else {
-        R = R.add(this)
-      }
+cachedProperty(KeyPair, 'pubBytes', function pubBytes() {
+  return this.eddsa.encodePoint(this.pub());
+});
 
-    } else {
-      if (kBit) {
-        R = R.add(x)
-      }
-    }
-    --i
-  }
+cachedProperty(KeyPair, 'pub', function pub() {
+  if (this._pubBytes)
+    return this.eddsa.decodePoint(this._pubBytes);
+  return this.eddsa.g.mul(this.priv());
+});
 
-  return R
-}
+cachedProperty(KeyPair, 'privBytes', function privBytes() {
+  var eddsa = this.eddsa;
+  var hash = this.hash();
+  var lastIx = eddsa.encodingLength - 1;
 
-Point.prototype.getEncoded = function(compressed) {
-  if (compressed == undefined) compressed = this.compressed
-  if (this.curve.isInfinity(this)) return new Buffer('00', 'hex') // Infinity point encoded is simply '00'
+  var a = hash.slice(0, eddsa.encodingLength);
+  a[0] &= 248;
+  a[lastIx] &= 127;
+  a[lastIx] |= 64;
 
-  var x = this.affineX
-  var y = this.affineY
+  return a;
+});
 
-  var buffer
+cachedProperty(KeyPair, 'priv', function priv() {
+  return this.eddsa.decodeInt(this.privBytes());
+});
 
-  // Determine size of q in bytes
-  var byteLength = Math.floor((this.curve.p.bitLength() + 7) / 8)
+cachedProperty(KeyPair, 'hash', function hash() {
+  return this.eddsa.hash().update(this.secret()).digest();
+});
 
-  // 0x02/0x03 | X
-  if (compressed) {
-    buffer = new Buffer(1 + byteLength)
-    buffer.writeUInt8(y.isEven() ? 0x02 : 0x03, 0)
+cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() {
+  return this.hash().slice(this.eddsa.encodingLength);
+});
 
-  // 0x04 | X | Y
-  } else {
-    buffer = new Buffer(1 + byteLength + byteLength)
-    buffer.writeUInt8(0x04, 0)
+KeyPair.prototype.sign = function sign(message) {
+  assert(this._secret, 'KeyPair can only verify');
+  return this.eddsa.sign(message, this);
+};
 
-    y.toBuffer(byteLength).copy(buffer, 1 + byteLength)
-  }
+KeyPair.prototype.verify = function verify(message, sig) {
+  return this.eddsa.verify(message, sig, this);
+};
 
-  x.toBuffer(byteLength).copy(buffer, 1)
+KeyPair.prototype.getSecret = function getSecret(enc) {
+  assert(this._secret, 'KeyPair is public only');
+  return utils.encode(this.secret(), enc);
+};
 
-  return buffer
-}
+KeyPair.prototype.getPublic = function getPublic(enc) {
+  return utils.encode(this.pubBytes(), enc);
+};
 
-Point.decodeFrom = function(curve, buffer) {
-  var type = buffer.readUInt8(0)
-  var compressed = (type !== 4)
+module.exports = KeyPair;
 
-  var byteLength = Math.floor((curve.p.bitLength() + 7) / 8)
-  var x = BigInteger.fromBuffer(buffer.slice(1, 1 + byteLength))
+},{"../../elliptic":97}],109:[function(require,module,exports){
+'use strict';
 
-  var Q
-  if (compressed) {
-    assert.equal(buffer.length, byteLength + 1, 'Invalid sequence length')
-    assert(type === 0x02 || type === 0x03, 'Invalid sequence tag')
+var BN = require('bn.js');
+var elliptic = require('../../elliptic');
+var utils = elliptic.utils;
+var assert = utils.assert;
+var cachedProperty = utils.cachedProperty;
+var parseBytes = utils.parseBytes;
 
-    var isOdd = (type === 0x03)
-    Q = curve.pointFromX(isOdd, x)
+/**
+* @param {EDDSA} eddsa - eddsa instance
+* @param {Array<Bytes>|Object} sig -
+* @param {Array<Bytes>|Point} [sig.R] - R point as Point or bytes
+* @param {Array<Bytes>|bn} [sig.S] - S scalar as bn or bytes
+* @param {Array<Bytes>} [sig.Rencoded] - R point encoded
+* @param {Array<Bytes>} [sig.Sencoded] - S scalar encoded
+*/
+function Signature(eddsa, sig) {
+  this.eddsa = eddsa;
 
-  } else {
-    assert.equal(buffer.length, 1 + byteLength + byteLength, 'Invalid sequence length')
+  if (typeof sig !== 'object')
+    sig = parseBytes(sig);
 
-    var y = BigInteger.fromBuffer(buffer.slice(1 + byteLength))
-    Q = Point.fromAffine(curve, x, y)
+  if (Array.isArray(sig)) {
+    sig = {
+      R: sig.slice(0, eddsa.encodingLength),
+      S: sig.slice(eddsa.encodingLength)
+    };
   }
 
-  Q.compressed = compressed
-  return Q
-}
+  assert(sig.R && sig.S, 'Signature without R or S');
 
-Point.prototype.toString = function () {
-  if (this.curve.isInfinity(this)) return '(INFINITY)'
+  if (eddsa.isPoint(sig.R))
+    this._R = sig.R;
+  if (sig.S instanceof BN)
+    this._S = sig.S;
 
-  return '(' + this.affineX.toString() + ',' + this.affineY.toString() + ')'
+  this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded;
+  this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded;
 }
 
-module.exports = Point
+cachedProperty(Signature, 'S', function S() {
+  return this.eddsa.decodeInt(this.Sencoded());
+});
 
-}).call(this,require("buffer").Buffer)
-},{"assert":5,"bigi":3,"buffer":7}],52:[function(require,module,exports){
-(function (process,global,Buffer){
-'use strict';
+cachedProperty(Signature, 'R', function R() {
+  return this.eddsa.decodePoint(this.Rencoded());
+});
 
-var crypto = global.crypto || global.msCrypto
-if(crypto && crypto.getRandomValues) {
-  module.exports = randomBytes;
-} else {
-  module.exports = oldBrowser;
-}
-function randomBytes(size, cb) {
-  var bytes = new Buffer(size); //in browserify, this is an extended Uint8Array
-    /* This will not work in older browsers.
-     * See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
-     */
+cachedProperty(Signature, 'Rencoded', function Rencoded() {
+  return this.eddsa.encodePoint(this.R());
+});
 
-  crypto.getRandomValues(bytes);
-  if (typeof cb === 'function') {
-    return process.nextTick(function () {
-      cb(null, bytes);
-    });
+cachedProperty(Signature, 'Sencoded', function Sencoded() {
+  return this.eddsa.encodeInt(this.S());
+});
+
+Signature.prototype.toBytes = function toBytes() {
+  return this.Rencoded().concat(this.Sencoded());
+};
+
+Signature.prototype.toHex = function toHex() {
+  return utils.encode(this.toBytes(), 'hex').toUpperCase();
+};
+
+module.exports = Signature;
+
+},{"../../elliptic":97,"bn.js":81}],110:[function(require,module,exports){
+module.exports = {
+  doubles: {
+    step: 4,
+    points: [
+      [
+        'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a',
+        'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821'
+      ],
+      [
+        '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508',
+        '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf'
+      ],
+      [
+        '175e159f728b865a72f99cc6c6fc846de0b93833fd2222ed73fce5b551e5b739',
+        'd3506e0d9e3c79eba4ef97a51ff71f5eacb5955add24345c6efa6ffee9fed695'
+      ],
+      [
+        '363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640',
+        '4e273adfc732221953b445397f3363145b9a89008199ecb62003c7f3bee9de9'
+      ],
+      [
+        '8b4b5f165df3c2be8c6244b5b745638843e4a781a15bcd1b69f79a55dffdf80c',
+        '4aad0a6f68d308b4b3fbd7813ab0da04f9e336546162ee56b3eff0c65fd4fd36'
+      ],
+      [
+        '723cbaa6e5db996d6bf771c00bd548c7b700dbffa6c0e77bcb6115925232fcda',
+        '96e867b5595cc498a921137488824d6e2660a0653779494801dc069d9eb39f5f'
+      ],
+      [
+        'eebfa4d493bebf98ba5feec812c2d3b50947961237a919839a533eca0e7dd7fa',
+        '5d9a8ca3970ef0f269ee7edaf178089d9ae4cdc3a711f712ddfd4fdae1de8999'
+      ],
+      [
+        '100f44da696e71672791d0a09b7bde459f1215a29b3c03bfefd7835b39a48db0',
+        'cdd9e13192a00b772ec8f3300c090666b7ff4a18ff5195ac0fbd5cd62bc65a09'
+      ],
+      [
+        'e1031be262c7ed1b1dc9227a4a04c017a77f8d4464f3b3852c8acde6e534fd2d',
+        '9d7061928940405e6bb6a4176597535af292dd419e1ced79a44f18f29456a00d'
+      ],
+      [
+        'feea6cae46d55b530ac2839f143bd7ec5cf8b266a41d6af52d5e688d9094696d',
+        'e57c6b6c97dce1bab06e4e12bf3ecd5c981c8957cc41442d3155debf18090088'
+      ],
+      [
+        'da67a91d91049cdcb367be4be6ffca3cfeed657d808583de33fa978bc1ec6cb1',
+        '9bacaa35481642bc41f463f7ec9780e5dec7adc508f740a17e9ea8e27a68be1d'
+      ],
+      [
+        '53904faa0b334cdda6e000935ef22151ec08d0f7bb11069f57545ccc1a37b7c0',
+        '5bc087d0bc80106d88c9eccac20d3c1c13999981e14434699dcb096b022771c8'
+      ],
+      [
+        '8e7bcd0bd35983a7719cca7764ca906779b53a043a9b8bcaeff959f43ad86047',
+        '10b7770b2a3da4b3940310420ca9514579e88e2e47fd68b3ea10047e8460372a'
+      ],
+      [
+        '385eed34c1cdff21e6d0818689b81bde71a7f4f18397e6690a841e1599c43862',
+        '283bebc3e8ea23f56701de19e9ebf4576b304eec2086dc8cc0458fe5542e5453'
+      ],
+      [
+        '6f9d9b803ecf191637c73a4413dfa180fddf84a5947fbc9c606ed86c3fac3a7',
+        '7c80c68e603059ba69b8e2a30e45c4d47ea4dd2f5c281002d86890603a842160'
+      ],
+      [
+        '3322d401243c4e2582a2147c104d6ecbf774d163db0f5e5313b7e0e742d0e6bd',
+        '56e70797e9664ef5bfb019bc4ddaf9b72805f63ea2873af624f3a2e96c28b2a0'
+      ],
+      [
+        '85672c7d2de0b7da2bd1770d89665868741b3f9af7643397721d74d28134ab83',
+        '7c481b9b5b43b2eb6374049bfa62c2e5e77f17fcc5298f44c8e3094f790313a6'
+      ],
+      [
+        '948bf809b1988a46b06c9f1919413b10f9226c60f668832ffd959af60c82a0a',
+        '53a562856dcb6646dc6b74c5d1c3418c6d4dff08c97cd2bed4cb7f88d8c8e589'
+      ],
+      [
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+      [
+        '7985fdfd127c0567c6f53ec1bb63ec3158e597c40bfe747c83cddfc910641917',
+        '603c12daf3d9862ef2b25fe1de289aed24ed291e0ec6708703a5bd567f32ed03'
+      ],
+      [
+        '74a1ad6b5f76e39db2dd249410eac7f99e74c59cb83d2d0ed5ff1543da7703e9',
+        'cc6157ef18c9c63cd6193d83631bbea0093e0968942e8c33d5737fd790e0db08'
+      ],
+      [
+        '30682a50703375f602d416664ba19b7fc9bab42c72747463a71d0896b22f6da3',
+        '553e04f6b018b4fa6c8f39e7f311d3176290d0e0f19ca73f17714d9977a22ff8'
+      ],
+      [
+        '9e2158f0d7c0d5f26c3791efefa79597654e7a2b2464f52b1ee6c1347769ef57',
+        '712fcdd1b9053f09003a3481fa7762e9ffd7c8ef35a38509e2fbf2629008373'
+      ],
+      [
+        '176e26989a43c9cfeba4029c202538c28172e566e3c4fce7322857f3be327d66',
+        'ed8cc9d04b29eb877d270b4878dc43c19aefd31f4eee09ee7b47834c1fa4b1c3'
+      ],
+      [
+        '75d46efea3771e6e68abb89a13ad747ecf1892393dfc4f1b7004788c50374da8',
+        '9852390a99507679fd0b86fd2b39a868d7efc22151346e1a3ca4726586a6bed8'
+      ],
+      [
+        '809a20c67d64900ffb698c4c825f6d5f2310fb0451c869345b7319f645605721',
+        '9e994980d9917e22b76b061927fa04143d096ccc54963e6a5ebfa5f3f8e286c1'
+      ],
+      [
+        '1b38903a43f7f114ed4500b4eac7083fdefece1cf29c63528d563446f972c180',
+        '4036edc931a60ae889353f77fd53de4a2708b26b6f5da72ad3394119daf408f9'
+      ]
+    ]
   }
-  return bytes;
-}
-function oldBrowser() {
-  throw new Error(
-      'secure random number generation not supported by this browser\n'+
-      'use chrome, FireFox or Internet Explorer 11'
-    )
-}
+};
 
-}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
-},{"_process":14,"buffer":7}],53:[function(require,module,exports){
-(function (Buffer){
+},{}],111:[function(require,module,exports){
 'use strict';
 
-function getFunctionName(fn) {
-  return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1];
-}
-
-function getTypeTypeName(type) {
-  if (nativeTypes.Function(type)) {
-    type = type.toJSON ? type.toJSON() : getFunctionName(type);
-  }
-  if (nativeTypes.Object(type)) return JSON.stringify(type);
-
-  return type;
-}
-
-function getValueTypeName(value) {
-  if (nativeTypes.Null(value)) return '';
-
-  return getFunctionName(value.constructor);
-}
-
-function tfErrorString(type, value) {
-  var typeTypeName = getTypeTypeName(type);
-  var valueTypeName = getValueTypeName(value);
-
-  return 'Expected ' + typeTypeName + ', got ' + (valueTypeName && valueTypeName + ' ') + JSON.stringify(value);
-}
-
-function tfPropertyErrorString(type, name, value) {
-  return tfErrorString('property \"' + name + '\" of type ' + getTypeTypeName(type), value);
-}
-
-var nativeTypes = {
-  Array: (function (_Array) {
-    function Array(_x) {
-      return _Array.apply(this, arguments);
-    }
+var utils = exports;
+var BN = require('bn.js');
+var minAssert = require('minimalistic-assert');
+var minUtils = require('minimalistic-crypto-utils');
 
-    Array.toString = function () {
-      return _Array.toString();
-    };
+utils.assert = minAssert;
+utils.toArray = minUtils.toArray;
+utils.zero2 = minUtils.zero2;
+utils.toHex = minUtils.toHex;
+utils.encode = minUtils.encode;
 
-    return Array;
-  })(function (value) {
-    return value !== null && value !== undefined && value.constructor === Array;
-  }),
-  Boolean: function Boolean(value) {
-    return typeof value === 'boolean';
-  },
-  Buffer: (function (_Buffer) {
-    function Buffer(_x2) {
-      return _Buffer.apply(this, arguments);
+// Represent num in a w-NAF form
+function getNAF(num, w) {
+  var naf = [];
+  var ws = 1 << (w + 1);
+  var k = num.clone();
+  while (k.cmpn(1) >= 0) {
+    var z;
+    if (k.isOdd()) {
+      var mod = k.andln(ws - 1);
+      if (mod > (ws >> 1) - 1)
+        z = (ws >> 1) - mod;
+      else
+        z = mod;
+      k.isubn(z);
+    } else {
+      z = 0;
     }
+    naf.push(z);
 
-    Buffer.toString = function () {
-      return _Buffer.toString();
-    };
-
-    return Buffer;
-  })(function (value) {
-    return Buffer.isBuffer(value);
-  }),
-  Function: function Function(value) {
-    return typeof value === 'function';
-  },
-  Null: function Null(value) {
-    return value === undefined || value === null;
-  },
-  Number: function Number(value) {
-    return typeof value === 'number';
-  },
-  Object: function Object(value) {
-    return typeof value === 'object';
-  },
-  String: function String(value) {
-    return typeof value === 'string';
-  },
-  '': function _() {
-    return true;
+    // Optimization, shift by word if possible
+    var shift = (k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1;
+    for (var i = 1; i < shift; i++)
+      naf.push(0);
+    k.iushrn(shift);
   }
-};
-
-function tJSON(type) {
-  return type && type.toJSON ? type.toJSON() : type;
-}
 
-function sJSON(type) {
-  var json = tJSON(type);
-  return nativeTypes.Object(json) ? JSON.stringify(json) : json;
+  return naf;
 }
+utils.getNAF = getNAF;
 
-var otherTypes = {
-  arrayOf: function arrayOf(type) {
-    function arrayOf(value, strict) {
-      try {
-        return nativeTypes.Array(value) && value.every(function (x) {
-          return typeforce(type, x, strict);
-        });
-      } catch (e) {
-        return false;
-      }
-    }
-    arrayOf.toJSON = function () {
-      return [tJSON(type)];
-    };
-
-    return arrayOf;
-  },
-
-  maybe: function maybe(type) {
-    function maybe(value, strict) {
-      return nativeTypes.Null(value) || typeforce(type, value, strict);
-    }
-    maybe.toJSON = function () {
-      return '?' + sJSON(type);
-    };
-
-    return maybe;
-  },
-
-  object: function object(type) {
-    function object(value, strict) {
-      typeforce(nativeTypes.Object, value, strict);
-
-      var propertyName, propertyType, propertyValue;
-
-      try {
-        for (propertyName in type) {
-          propertyType = type[propertyName];
-          propertyValue = value[propertyName];
-
-          typeforce(propertyType, propertyValue, strict);
-        }
-      } catch (e) {
-        throw new TypeError(tfPropertyErrorString(propertyType, propertyName, propertyValue));
-      }
-
-      if (strict) {
-        for (propertyName in value) {
-          if (type[propertyName]) continue;
-
-          throw new TypeError('Unexpected property "' + propertyName + '"');
-        }
-      }
-
-      return true;
-    }
-    object.toJSON = function () {
-      return type;
-    };
-
-    return object;
-  },
-
-  oneOf: function oneOf() {
-    for (var _len = arguments.length, types = Array(_len), _key = 0; _key < _len; _key++) {
-      types[_key] = arguments[_key];
-    }
-
-    function oneOf(value, strict) {
-      return types.some(function (type) {
-        try {
-          return typeforce(type, value, strict);
-        } catch (e) {
-          return false;
-        }
-      });
-    }
-    oneOf.toJSON = function () {
-      return types.map(sJSON).join('|');
-    };
-
-    return oneOf;
-  },
-
-  quacksLike: function quacksLike(type) {
-    function quacksLike(value, strict) {
-      return type === getValueTypeName(value);
-    }
-    quacksLike.toJSON = function () {
-      return type;
-    };
-
-    return quacksLike;
-  },
-
-  tuple: function tuple() {
-    for (var _len2 = arguments.length, types = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
-      types[_key2] = arguments[_key2];
-    }
-
-    function tuple(value, strict) {
-      return types.every(function (type, i) {
-        return typeforce(type, value[i], strict);
-      });
-    }
-    tuple.toJSON = function () {
-      return '(' + types.map(sJSON).join(', ') + ')';
-    };
+// Represent k1, k2 in a Joint Sparse Form
+function getJSF(k1, k2) {
+  var jsf = [
+    [],
+    []
+  ];
 
-    return tuple;
-  },
+  k1 = k1.clone();
+  k2 = k2.clone();
+  var d1 = 0;
+  var d2 = 0;
+  while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) {
 
-  value: function value(expected) {
-    function value(actual) {
-      return actual === expected;
+    // First phase
+    var m14 = (k1.andln(3) + d1) & 3;
+    var m24 = (k2.andln(3) + d2) & 3;
+    if (m14 === 3)
+      m14 = -1;
+    if (m24 === 3)
+      m24 = -1;
+    var u1;
+    if ((m14 & 1) === 0) {
+      u1 = 0;
+    } else {
+      var m8 = (k1.andln(7) + d1) & 7;
+      if ((m8 === 3 || m8 === 5) && m24 === 2)
+        u1 = -m14;
+      else
+        u1 = m14;
     }
-    value.toJSON = function () {
-      return expected;
-    };
-
-    return value;
-  }
-};
-
-function compile(type) {
-  if (nativeTypes.String(type)) {
-    if (type[0] === '?') return otherTypes.maybe(compile(type.slice(1)));
-
-    return nativeTypes[type] || otherTypes.quacksLike(type);
-  } else if (type && nativeTypes.Object(type)) {
-    if (nativeTypes.Array(type)) return otherTypes.arrayOf(compile(type[0]));
-
-    var compiled = {};
+    jsf[0].push(u1);
 
-    for (var propertyName in type) {
-      compiled[propertyName] = compile(type[propertyName]);
+    var u2;
+    if ((m24 & 1) === 0) {
+      u2 = 0;
+    } else {
+      var m8 = (k2.andln(7) + d2) & 7;
+      if ((m8 === 3 || m8 === 5) && m14 === 2)
+        u2 = -m24;
+      else
+        u2 = m24;
     }
+    jsf[1].push(u2);
 
-    return otherTypes.object(compiled);
-  } else if (nativeTypes.Function(type)) {
-    return type;
+    // Second phase
+    if (2 * d1 === u1 + 1)
+      d1 = 1 - d1;
+    if (2 * d2 === u2 + 1)
+      d2 = 1 - d2;
+    k1.iushrn(1);
+    k2.iushrn(1);
   }
 
-  return otherTypes.value(type);
-}
-
-function typeforce(_x3, _x4, _x5) {
-  var _again = true;
-
-  _function: while (_again) {
-    var type = _x3,
-        value = _x4,
-        strict = _x5;
-    _again = false;
-
-    if (nativeTypes.Function(type)) {
-      if (type(value, strict)) return true;
-
-      throw new TypeError(tfErrorString(type, value));
-    }
-
-    // JIT
-    _x3 = compile(type);
-    _x4 = value;
-    _x5 = strict;
-    _again = true;
-    continue _function;
-  }
+  return jsf;
 }
+utils.getJSF = getJSF;
 
-// assign all types to typeforce function
-var typeName;
-Object.keys(nativeTypes).forEach(function (typeName) {
-  var nativeType = nativeTypes[typeName];
-  nativeType.toJSON = function () {
-    return typeName;
+function cachedProperty(obj, name, computer) {
+  var key = '_' + name;
+  obj.prototype[name] = function cachedProperty() {
+    return this[key] !== undefined ? this[key] :
+           this[key] = computer.call(this);
   };
-
-  typeforce[typeName] = nativeType;
-});
-
-for (typeName in otherTypes) {
-  typeforce[typeName] = otherTypes[typeName];
-}
-
-module.exports = typeforce;
-module.exports.compile = compile;
-}).call(this,require("buffer").Buffer)
-},{"buffer":7}],54:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var base58check = require('bs58check')
-var typeForce = require('typeforce')
-var networks = require('./networks')
-var scripts = require('./scripts')
-
-function findScriptTypeByVersion (version) {
-  for (var networkName in networks) {
-    var network = networks[networkName]
-
-    if (version === network.pubKeyHash) return 'pubkeyhash'
-    if (version === network.scriptHash) return 'scripthash'
-  }
-}
-
-function Address (hash, version) {
-  typeForce('Buffer', hash)
-
-  assert.strictEqual(hash.length, 20, 'Invalid hash length')
-  assert.strictEqual(version & 0xff, version, 'Invalid version byte')
-
-  this.hash = hash
-  this.version = version
-}
-
-Address.fromBase58Check = function (string) {
-  var payload = base58check.decode(string)
-  var version = payload.readUInt8(0)
-  var hash = payload.slice(1)
-
-  return new Address(hash, version)
 }
+utils.cachedProperty = cachedProperty;
 
-Address.fromOutputScript = function (script, network) {
-  network = network || networks.bitcoin
-
-  if (scripts.isPubKeyHashOutput(script)) return new Address(script.chunks[2], network.pubKeyHash)
-  if (scripts.isScriptHashOutput(script)) return new Address(script.chunks[1], network.scriptHash)
-
-  assert(false, script.toASM() + ' has no matching Address')
+function parseBytes(bytes) {
+  return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') :
+                                     bytes;
 }
+utils.parseBytes = parseBytes;
 
-Address.prototype.toBase58Check = function () {
-  var payload = new Buffer(21)
-  payload.writeUInt8(this.version, 0)
-  this.hash.copy(payload, 1)
-
-  return base58check.encode(payload)
+function intFromLE(bytes) {
+  return new BN(bytes, 'hex', 'le');
 }
+utils.intFromLE = intFromLE;
 
-Address.prototype.toOutputScript = function () {
-  var scriptType = findScriptTypeByVersion(this.version)
-
-  if (scriptType === 'pubkeyhash') return scripts.pubKeyHashOutput(this.hash)
-  if (scriptType === 'scripthash') return scripts.scriptHashOutput(this.hash)
 
-  assert(false, this.toString() + ' has no matching Script')
+},{"bn.js":81,"minimalistic-assert":123,"minimalistic-crypto-utils":124}],112:[function(require,module,exports){
+module.exports={
+  "_args": [
+    [
+      "elliptic",
+      "/home/ian/git/bitcoin/bitcoinjs-lib-browser"
+    ]
+  ],
+  "_from": "elliptic@latest",
+  "_id": "elliptic@6.4.0",
+  "_inCache": true,
+  "_installable": true,
+  "_location": "/elliptic",
+  "_nodeVersion": "7.0.0",
+  "_npmOperationalInternal": {
+    "host": "packages-18-east.internal.npmjs.com",
+    "tmp": "tmp/elliptic-6.4.0.tgz_1487798866428_0.30510620190761983"
+  },
+  "_npmUser": {
+    "email": "fedor@indutny.com",
+    "name": "indutny"
+  },
+  "_npmVersion": "3.10.8",
+  "_phantomChildren": {},
+  "_requested": {
+    "name": "elliptic",
+    "raw": "elliptic",
+    "rawSpec": "",
+    "scope": null,
+    "spec": "latest",
+    "type": "tag"
+  },
+  "_requiredBy": [
+    "#USER"
+  ],
+  "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
+  "_shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df",
+  "_shrinkwrap": null,
+  "_spec": "elliptic",
+  "_where": "/home/ian/git/bitcoin/bitcoinjs-lib-browser",
+  "author": {
+    "email": "fedor@indutny.com",
+    "name": "Fedor Indutny"
+  },
+  "bugs": {
+    "url": "https://github.com/indutny/elliptic/issues"
+  },
+  "dependencies": {
+    "bn.js": "^4.4.0",
+    "brorand": "^1.0.1",
+    "hash.js": "^1.0.0",
+    "hmac-drbg": "^1.0.0",
+    "inherits": "^2.0.1",
+    "minimalistic-assert": "^1.0.0",
+    "minimalistic-crypto-utils": "^1.0.0"
+  },
+  "description": "EC cryptography",
+  "devDependencies": {
+    "brfs": "^1.4.3",
+    "coveralls": "^2.11.3",
+    "grunt": "^0.4.5",
+    "grunt-browserify": "^5.0.0",
+    "grunt-cli": "^1.2.0",
+    "grunt-contrib-connect": "^1.0.0",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-uglify": "^1.0.1",
+    "grunt-mocha-istanbul": "^3.0.1",
+    "grunt-saucelabs": "^8.6.2",
+    "istanbul": "^0.4.2",
+    "jscs": "^2.9.0",
+    "jshint": "^2.6.0",
+    "mocha": "^2.1.0"
+  },
+  "directories": {},
+  "dist": {
+    "shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df",
+    "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz"
+  },
+  "files": [
+    "lib"
+  ],
+  "gitHead": "6b0d2b76caae91471649c8e21f0b1d3ba0f96090",
+  "homepage": "https://github.com/indutny/elliptic",
+  "keywords": [
+    "EC",
+    "Elliptic",
+    "curve",
+    "Cryptography"
+  ],
+  "license": "MIT",
+  "main": "lib/elliptic.js",
+  "maintainers": [
+    {
+      "email": "fedor@indutny.com",
+      "name": "indutny"
+    }
+  ],
+  "name": "elliptic",
+  "optionalDependencies": {},
+  "readme": "ERROR: No README data found!",
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/indutny/elliptic.git"
+  },
+  "scripts": {
+    "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
+    "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js",
+    "lint": "npm run jscs && npm run jshint",
+    "test": "npm run lint && npm run unit",
+    "unit": "istanbul test _mocha --reporter=spec test/index.js",
+    "version": "grunt dist && git add dist/"
+  },
+  "version": "6.4.0"
 }
 
-Address.prototype.toString = Address.prototype.toBase58Check
-
-module.exports = Address
+},{}],113:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var Transform = require('stream').Transform
+var inherits = require('inherits')
 
-}).call(this,require("buffer").Buffer)
-},{"./networks":66,"./scripts":69,"assert":5,"bs58check":31,"buffer":7,"typeforce":53}],55:[function(require,module,exports){
-var bs58check = require('bs58check')
+function HashBase (blockSize) {
+  Transform.call(this)
 
-function decode () {
-  console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+  this._block = new Buffer(blockSize)
+  this._blockSize = blockSize
+  this._blockOffset = 0
+  this._length = [0, 0, 0, 0]
 
-  return bs58check.decode.apply(undefined, arguments)
+  this._finalized = false
 }
 
-function encode () {
-  console.warn('bs58check will be removed in 2.0.0. require("bs58check") instead.')
+inherits(HashBase, Transform)
 
-  return bs58check.encode.apply(undefined, arguments)
-}
+HashBase.prototype._transform = function (chunk, encoding, callback) {
+  var error = null
+  try {
+    if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding)
+    this.update(chunk)
+  } catch (err) {
+    error = err
+  }
 
-module.exports = {
-  decode: decode,
-  encode: encode
+  callback(error)
 }
 
-},{"bs58check":31}],56:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-
-var Transaction = require('./transaction')
+HashBase.prototype._flush = function (callback) {
+  var error = null
+  try {
+    this.push(this._digest())
+  } catch (err) {
+    error = err
+  }
 
-function Block () {
-  this.version = 1
-  this.prevHash = null
-  this.merkleRoot = null
-  this.timestamp = 0
-  this.bits = 0
-  this.nonce = 0
+  callback(error)
 }
 
-Block.fromBuffer = function (buffer) {
-  assert(buffer.length >= 80, 'Buffer too small (< 80 bytes)')
+HashBase.prototype.update = function (data, encoding) {
+  if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer')
+  if (this._finalized) throw new Error('Digest already called')
+  if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary')
 
+  // consume data
+  var block = this._block
   var offset = 0
-  function readSlice (n) {
-    offset += n
-    return buffer.slice(offset - n, offset)
-  }
-
-  function readUInt32 () {
-    var i = buffer.readUInt32LE(offset)
-    offset += 4
-    return i
-  }
-
-  var block = new Block()
-  block.version = readUInt32()
-  block.prevHash = readSlice(32)
-  block.merkleRoot = readSlice(32)
-  block.timestamp = readUInt32()
-  block.bits = readUInt32()
-  block.nonce = readUInt32()
-
-  if (buffer.length === 80) return block
-
-  function readVarInt () {
-    var vi = bufferutils.readVarInt(buffer, offset)
-    offset += vi.size
-    return vi.number
-  }
-
-  // FIXME: poor performance
-  function readTransaction () {
-    var tx = Transaction.fromBuffer(buffer.slice(offset), true)
-
-    offset += tx.toBuffer().length
-    return tx
+  while (this._blockOffset + data.length - offset >= this._blockSize) {
+    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
+    this._update()
+    this._blockOffset = 0
   }
+  while (offset < data.length) block[this._blockOffset++] = data[offset++]
 
-  var nTransactions = readVarInt()
-  block.transactions = []
-
-  for (var i = 0; i < nTransactions; ++i) {
-    var tx = readTransaction()
-    block.transactions.push(tx)
+  // update length
+  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
+    this._length[j] += carry
+    carry = (this._length[j] / 0x0100000000) | 0
+    if (carry > 0) this._length[j] -= 0x0100000000 * carry
   }
 
-  return block
+  return this
 }
 
-Block.fromHex = function (hex) {
-  return Block.fromBuffer(new Buffer(hex, 'hex'))
+HashBase.prototype._update = function (data) {
+  throw new Error('_update is not implemented')
 }
 
-Block.prototype.getHash = function () {
-  return crypto.hash256(this.toBuffer(true))
-}
+HashBase.prototype.digest = function (encoding) {
+  if (this._finalized) throw new Error('Digest already called')
+  this._finalized = true
 
-Block.prototype.getId = function () {
-  return bufferutils.reverse(this.getHash()).toString('hex')
+  var digest = this._digest()
+  if (encoding !== undefined) digest = digest.toString(encoding)
+  return digest
 }
 
-Block.prototype.getUTCDate = function () {
-  var date = new Date(0) // epoch
-  date.setUTCSeconds(this.timestamp)
-
-  return date
+HashBase.prototype._digest = function () {
+  throw new Error('_digest is not implemented')
 }
 
-Block.prototype.toBuffer = function (headersOnly) {
-  var buffer = new Buffer(80)
+module.exports = HashBase
 
-  var offset = 0
-  function writeSlice (slice) {
-    slice.copy(buffer, offset)
-    offset += slice.length
-  }
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"inherits":121,"stream":28}],114:[function(require,module,exports){
+var hash = exports;
 
-  function writeUInt32 (i) {
-    buffer.writeUInt32LE(i, offset)
-    offset += 4
-  }
+hash.utils = require('./hash/utils');
+hash.common = require('./hash/common');
+hash.sha = require('./hash/sha');
+hash.ripemd = require('./hash/ripemd');
+hash.hmac = require('./hash/hmac');
 
-  writeUInt32(this.version)
-  writeSlice(this.prevHash)
-  writeSlice(this.merkleRoot)
-  writeUInt32(this.timestamp)
-  writeUInt32(this.bits)
-  writeUInt32(this.nonce)
+// Proxy hash functions to the main object
+hash.sha1 = hash.sha.sha1;
+hash.sha256 = hash.sha.sha256;
+hash.sha224 = hash.sha.sha224;
+hash.sha384 = hash.sha.sha384;
+hash.sha512 = hash.sha.sha512;
+hash.ripemd160 = hash.ripemd.ripemd160;
 
-  if (headersOnly || !this.transactions) return buffer
+},{"./hash/common":115,"./hash/hmac":116,"./hash/ripemd":117,"./hash/sha":118,"./hash/utils":119}],115:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
 
-  var txLenBuffer = bufferutils.varIntBuffer(this.transactions.length)
-  var txBuffers = this.transactions.map(function (tx) {
-    return tx.toBuffer()
-  })
+function BlockHash() {
+  this.pending = null;
+  this.pendingTotal = 0;
+  this.blockSize = this.constructor.blockSize;
+  this.outSize = this.constructor.outSize;
+  this.hmacStrength = this.constructor.hmacStrength;
+  this.padLength = this.constructor.padLength / 8;
+  this.endian = 'big';
 
-  return Buffer.concat([buffer, txLenBuffer].concat(txBuffers))
+  this._delta8 = this.blockSize / 8;
+  this._delta32 = this.blockSize / 32;
 }
+exports.BlockHash = BlockHash;
 
-Block.prototype.toHex = function (headersOnly) {
-  return this.toBuffer(headersOnly).toString('hex')
-}
+BlockHash.prototype.update = function update(msg, enc) {
+  // Convert message to array, pad it, and join into 32bit blocks
+  msg = utils.toArray(msg, enc);
+  if (!this.pending)
+    this.pending = msg;
+  else
+    this.pending = this.pending.concat(msg);
+  this.pendingTotal += msg.length;
 
-module.exports = Block
+  // Enough data, try updating
+  if (this.pending.length >= this._delta8) {
+    msg = this.pending;
 
-}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./transaction":70,"assert":5,"buffer":7}],57:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var opcodes = require('./opcodes')
+    // Process pending data in blocks
+    var r = msg.length % this._delta8;
+    this.pending = msg.slice(msg.length - r, msg.length);
+    if (this.pending.length === 0)
+      this.pending = null;
 
-// https://github.com/feross/buffer/blob/master/index.js#L1127
-function verifuint (value, max) {
-  assert(typeof value === 'number', 'cannot write a non-number as a number')
-  assert(value >= 0, 'specified a negative value for writing an unsigned value')
-  assert(value <= max, 'value is larger than maximum value for type')
-  assert(Math.floor(value) === value, 'value has a fractional component')
-}
+    msg = utils.join32(msg, 0, msg.length - r, this.endian);
+    for (var i = 0; i < msg.length; i += this._delta32)
+      this._update(msg, i, i + this._delta32);
+  }
 
-function pushDataSize (i) {
-  return i < opcodes.OP_PUSHDATA1 ? 1
-  : i < 0xff ? 2
-  : i < 0xffff ? 3
-  : 5
-}
+  return this;
+};
 
-function readPushDataInt (buffer, offset) {
-  var opcode = buffer.readUInt8(offset)
-  var number, size
+BlockHash.prototype.digest = function digest(enc) {
+  this.update(this._pad());
+  assert(this.pending === null);
 
-  // ~6 bit
-  if (opcode < opcodes.OP_PUSHDATA1) {
-    number = opcode
-    size = 1
+  return this._digest(enc);
+};
 
-  // 8 bit
-  } else if (opcode === opcodes.OP_PUSHDATA1) {
-    if (offset + 2 > buffer.length) return null
-    number = buffer.readUInt8(offset + 1)
-    size = 2
+BlockHash.prototype._pad = function pad() {
+  var len = this.pendingTotal;
+  var bytes = this._delta8;
+  var k = bytes - ((len + this.padLength) % bytes);
+  var res = new Array(k + this.padLength);
+  res[0] = 0x80;
+  for (var i = 1; i < k; i++)
+    res[i] = 0;
 
-  // 16 bit
-  } else if (opcode === opcodes.OP_PUSHDATA2) {
-    if (offset + 3 > buffer.length) return null
-    number = buffer.readUInt16LE(offset + 1)
-    size = 3
+  // Append length
+  len <<= 3;
+  if (this.endian === 'big') {
+    for (var t = 8; t < this.padLength; t++)
+      res[i++] = 0;
 
-  // 32 bit
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = (len >>> 24) & 0xff;
+    res[i++] = (len >>> 16) & 0xff;
+    res[i++] = (len >>> 8) & 0xff;
+    res[i++] = len & 0xff;
   } else {
-    if (offset + 5 > buffer.length) return null
-    assert.equal(opcode, opcodes.OP_PUSHDATA4, 'Unexpected opcode')
-
-    number = buffer.readUInt32LE(offset + 1)
-    size = 5
-  }
+    res[i++] = len & 0xff;
+    res[i++] = (len >>> 8) & 0xff;
+    res[i++] = (len >>> 16) & 0xff;
+    res[i++] = (len >>> 24) & 0xff;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
+    res[i++] = 0;
 
-  return {
-    opcode: opcode,
-    number: number,
-    size: size
+    for (var t = 8; t < this.padLength; t++)
+      res[i++] = 0;
   }
-}
-
-function readUInt64LE (buffer, offset) {
-  var a = buffer.readUInt32LE(offset)
-  var b = buffer.readUInt32LE(offset + 4)
-  b *= 0x100000000
-
-  verifuint(b + a, 0x001fffffffffffff)
-
-  return b + a
-}
 
-function readVarInt (buffer, offset) {
-  var t = buffer.readUInt8(offset)
-  var number, size
-
-  // 8 bit
-  if (t < 253) {
-    number = t
-    size = 1
+  return res;
+};
 
-  // 16 bit
-  } else if (t < 254) {
-    number = buffer.readUInt16LE(offset + 1)
-    size = 3
+},{"../hash":114}],116:[function(require,module,exports){
+var hmac = exports;
 
-  // 32 bit
-  } else if (t < 255) {
-    number = buffer.readUInt32LE(offset + 1)
-    size = 5
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
 
-  // 64 bit
-  } else {
-    number = readUInt64LE(buffer, offset + 1)
-    size = 9
-  }
+function Hmac(hash, key, enc) {
+  if (!(this instanceof Hmac))
+    return new Hmac(hash, key, enc);
+  this.Hash = hash;
+  this.blockSize = hash.blockSize / 8;
+  this.outSize = hash.outSize / 8;
+  this.inner = null;
+  this.outer = null;
 
-  return {
-    number: number,
-    size: size
-  }
+  this._init(utils.toArray(key, enc));
 }
+module.exports = Hmac;
 
-function writePushDataInt (buffer, number, offset) {
-  var size = pushDataSize(number)
-
-  // ~6 bit
-  if (size === 1) {
-    buffer.writeUInt8(number, offset)
+Hmac.prototype._init = function init(key) {
+  // Shorten key, if needed
+  if (key.length > this.blockSize)
+    key = new this.Hash().update(key).digest();
+  assert(key.length <= this.blockSize);
 
-  // 8 bit
-  } else if (size === 2) {
-    buffer.writeUInt8(opcodes.OP_PUSHDATA1, offset)
-    buffer.writeUInt8(number, offset + 1)
+  // Add padding to key
+  for (var i = key.length; i < this.blockSize; i++)
+    key.push(0);
 
-  // 16 bit
-  } else if (size === 3) {
-    buffer.writeUInt8(opcodes.OP_PUSHDATA2, offset)
-    buffer.writeUInt16LE(number, offset + 1)
+  for (var i = 0; i < key.length; i++)
+    key[i] ^= 0x36;
+  this.inner = new this.Hash().update(key);
 
-  // 32 bit
-  } else {
-    buffer.writeUInt8(opcodes.OP_PUSHDATA4, offset)
-    buffer.writeUInt32LE(number, offset + 1)
-  }
+  // 0x36 ^ 0x5c = 0x6a
+  for (var i = 0; i < key.length; i++)
+    key[i] ^= 0x6a;
+  this.outer = new this.Hash().update(key);
+};
 
-  return size
-}
+Hmac.prototype.update = function update(msg, enc) {
+  this.inner.update(msg, enc);
+  return this;
+};
 
-function writeUInt64LE (buffer, value, offset) {
-  verifuint(value, 0x001fffffffffffff)
+Hmac.prototype.digest = function digest(enc) {
+  this.outer.update(this.inner.digest());
+  return this.outer.digest(enc);
+};
 
-  buffer.writeInt32LE(value & -1, offset)
-  buffer.writeUInt32LE(Math.floor(value / 0x100000000), offset + 4)
-}
+},{"../hash":114}],117:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
 
-function varIntSize (i) {
-  return i < 253 ? 1
-  : i < 0x10000 ? 3
-  : i < 0x100000000 ? 5
-  : 9
-}
+var rotl32 = utils.rotl32;
+var sum32 = utils.sum32;
+var sum32_3 = utils.sum32_3;
+var sum32_4 = utils.sum32_4;
+var BlockHash = hash.common.BlockHash;
 
-function writeVarInt (buffer, number, offset) {
-  var size = varIntSize(number)
+function RIPEMD160() {
+  if (!(this instanceof RIPEMD160))
+    return new RIPEMD160();
 
-  // 8 bit
-  if (size === 1) {
-    buffer.writeUInt8(number, offset)
+  BlockHash.call(this);
 
-  // 16 bit
-  } else if (size === 3) {
-    buffer.writeUInt8(253, offset)
-    buffer.writeUInt16LE(number, offset + 1)
+  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ];
+  this.endian = 'little';
+}
+utils.inherits(RIPEMD160, BlockHash);
+exports.ripemd160 = RIPEMD160;
 
-  // 32 bit
-  } else if (size === 5) {
-    buffer.writeUInt8(254, offset)
-    buffer.writeUInt32LE(number, offset + 1)
+RIPEMD160.blockSize = 512;
+RIPEMD160.outSize = 160;
+RIPEMD160.hmacStrength = 192;
+RIPEMD160.padLength = 64;
 
-  // 64 bit
-  } else {
-    buffer.writeUInt8(255, offset)
-    writeUInt64LE(buffer, number, offset + 1)
+RIPEMD160.prototype._update = function update(msg, start) {
+  var A = this.h[0];
+  var B = this.h[1];
+  var C = this.h[2];
+  var D = this.h[3];
+  var E = this.h[4];
+  var Ah = A;
+  var Bh = B;
+  var Ch = C;
+  var Dh = D;
+  var Eh = E;
+  for (var j = 0; j < 80; j++) {
+    var T = sum32(
+      rotl32(
+        sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)),
+        s[j]),
+      E);
+    A = E;
+    E = D;
+    D = rotl32(C, 10);
+    C = B;
+    B = T;
+    T = sum32(
+      rotl32(
+        sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)),
+        sh[j]),
+      Eh);
+    Ah = Eh;
+    Eh = Dh;
+    Dh = rotl32(Ch, 10);
+    Ch = Bh;
+    Bh = T;
   }
+  T = sum32_3(this.h[1], C, Dh);
+  this.h[1] = sum32_3(this.h[2], D, Eh);
+  this.h[2] = sum32_3(this.h[3], E, Ah);
+  this.h[3] = sum32_3(this.h[4], A, Bh);
+  this.h[4] = sum32_3(this.h[0], B, Ch);
+  this.h[0] = T;
+};
 
-  return size
-}
-
-function varIntBuffer (i) {
-  var size = varIntSize(i)
-  var buffer = new Buffer(size)
-  writeVarInt(buffer, i, 0)
-
-  return buffer
-}
+RIPEMD160.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'little');
+  else
+    return utils.split32(this.h, 'little');
+};
 
-function reverse (buffer) {
-  var buffer2 = new Buffer(buffer)
-  Array.prototype.reverse.call(buffer2)
-  return buffer2
+function f(j, x, y, z) {
+  if (j <= 15)
+    return x ^ y ^ z;
+  else if (j <= 31)
+    return (x & y) | ((~x) & z);
+  else if (j <= 47)
+    return (x | (~y)) ^ z;
+  else if (j <= 63)
+    return (x & z) | (y & (~z));
+  else
+    return x ^ (y | (~z));
 }
 
-module.exports = {
-  pushDataSize: pushDataSize,
-  readPushDataInt: readPushDataInt,
-  readUInt64LE: readUInt64LE,
-  readVarInt: readVarInt,
-  reverse: reverse,
-  varIntBuffer: varIntBuffer,
-  varIntSize: varIntSize,
-  writePushDataInt: writePushDataInt,
-  writeUInt64LE: writeUInt64LE,
-  writeVarInt: writeVarInt
+function K(j) {
+  if (j <= 15)
+    return 0x00000000;
+  else if (j <= 31)
+    return 0x5a827999;
+  else if (j <= 47)
+    return 0x6ed9eba1;
+  else if (j <= 63)
+    return 0x8f1bbcdc;
+  else
+    return 0xa953fd4e;
 }
 
-}).call(this,require("buffer").Buffer)
-},{"./opcodes":67,"assert":5,"buffer":7}],58:[function(require,module,exports){
-var createHash = require('create-hash')
-
-function hash160 (buffer) {
-  return ripemd160(sha256(buffer))
+function Kh(j) {
+  if (j <= 15)
+    return 0x50a28be6;
+  else if (j <= 31)
+    return 0x5c4dd124;
+  else if (j <= 47)
+    return 0x6d703ef3;
+  else if (j <= 63)
+    return 0x7a6d76e9;
+  else
+    return 0x00000000;
 }
 
-function hash256 (buffer) {
-  return sha256(sha256(buffer))
-}
+var r = [
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+  7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
+  3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
+  1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
+  4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+];
 
-function ripemd160 (buffer) {
-  return createHash('rmd160').update(buffer).digest()
-}
+var rh = [
+  5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
+  6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
+  15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
+  8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
+  12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+];
 
-function sha1 (buffer) {
-  return createHash('sha1').update(buffer).digest()
-}
+var s = [
+  11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
+  7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
+  11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
+  11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
+  9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+];
 
-function sha256 (buffer) {
-  return createHash('sha256').update(buffer).digest()
-}
+var sh = [
+  8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
+  9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
+  9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
+  15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
+  8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+];
 
-// FIXME: Name not consistent with others
-var createHmac = require('create-hmac')
+},{"../hash":114}],118:[function(require,module,exports){
+var hash = require('../hash');
+var utils = hash.utils;
+var assert = utils.assert;
 
-function HmacSHA256 (buffer, secret) {
-  console.warn('Hmac* functions are deprecated for removal in 2.0.0, use node crypto instead')
-  return createHmac('sha256', secret).update(buffer).digest()
-}
+var rotr32 = utils.rotr32;
+var rotl32 = utils.rotl32;
+var sum32 = utils.sum32;
+var sum32_4 = utils.sum32_4;
+var sum32_5 = utils.sum32_5;
+var rotr64_hi = utils.rotr64_hi;
+var rotr64_lo = utils.rotr64_lo;
+var shr64_hi = utils.shr64_hi;
+var shr64_lo = utils.shr64_lo;
+var sum64 = utils.sum64;
+var sum64_hi = utils.sum64_hi;
+var sum64_lo = utils.sum64_lo;
+var sum64_4_hi = utils.sum64_4_hi;
+var sum64_4_lo = utils.sum64_4_lo;
+var sum64_5_hi = utils.sum64_5_hi;
+var sum64_5_lo = utils.sum64_5_lo;
+var BlockHash = hash.common.BlockHash;
 
-function HmacSHA512 (buffer, secret) {
-  console.warn('Hmac* functions are deprecated for removal in 2.0.0, use node crypto instead')
-  return createHmac('sha512', secret).update(buffer).digest()
-}
+var sha256_K = [
+  0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
+  0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+  0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
+  0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+  0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
+  0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+  0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
+  0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+  0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
+  0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+  0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
+  0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+  0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
+  0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+  0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
+  0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+];
 
-module.exports = {
-  ripemd160: ripemd160,
-  sha1: sha1,
-  sha256: sha256,
-  hash160: hash160,
-  hash256: hash256,
-  HmacSHA256: HmacSHA256,
-  HmacSHA512: HmacSHA512
-}
+var sha512_K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+];
 
-},{"create-hash":32,"create-hmac":45}],59:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var createHmac = require('create-hmac')
-var typeForce = require('typeforce')
+var sha1_K = [
+  0x5A827999, 0x6ED9EBA1,
+  0x8F1BBCDC, 0xCA62C1D6
+];
 
-var BigInteger = require('bigi')
-var ECSignature = require('./ecsignature')
+function SHA256() {
+  if (!(this instanceof SHA256))
+    return new SHA256();
 
-var ZERO = new Buffer([0])
-var ONE = new Buffer([1])
+  BlockHash.call(this);
+  this.h = [ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
+             0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 ];
+  this.k = sha256_K;
+  this.W = new Array(64);
+}
+utils.inherits(SHA256, BlockHash);
+exports.sha256 = SHA256;
 
-// https://tools.ietf.org/html/rfc6979#section-3.2
-function deterministicGenerateK (curve, hash, d, checkSig) {
-  typeForce('Buffer', hash)
-  typeForce('BigInteger', d)
+SHA256.blockSize = 512;
+SHA256.outSize = 256;
+SHA256.hmacStrength = 192;
+SHA256.padLength = 64;
 
-  // FIXME: remove/uncomment for 2.0.0
-  //  typeForce('Function', checkSig)
+SHA256.prototype._update = function _update(msg, start) {
+  var W = this.W;
 
-  if (typeof checkSig !== 'function') {
-    console.warn('deterministicGenerateK requires a checkSig callback in 2.0.0, see #337 for more information')
+  for (var i = 0; i < 16; i++)
+    W[i] = msg[start + i];
+  for (; i < W.length; i++)
+    W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]);
 
-    checkSig = function (k) {
-      var G = curve.G
-      var n = curve.n
-      var e = BigInteger.fromBuffer(hash)
+  var a = this.h[0];
+  var b = this.h[1];
+  var c = this.h[2];
+  var d = this.h[3];
+  var e = this.h[4];
+  var f = this.h[5];
+  var g = this.h[6];
+  var h = this.h[7];
 
-      var Q = G.multiply(k)
+  assert(this.k.length === W.length);
+  for (var i = 0; i < W.length; i++) {
+    var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]);
+    var T2 = sum32(s0_256(a), maj32(a, b, c));
+    h = g;
+    g = f;
+    f = e;
+    e = sum32(d, T1);
+    d = c;
+    c = b;
+    b = a;
+    a = sum32(T1, T2);
+  }
 
-      if (curve.isInfinity(Q))
-        return false
+  this.h[0] = sum32(this.h[0], a);
+  this.h[1] = sum32(this.h[1], b);
+  this.h[2] = sum32(this.h[2], c);
+  this.h[3] = sum32(this.h[3], d);
+  this.h[4] = sum32(this.h[4], e);
+  this.h[5] = sum32(this.h[5], f);
+  this.h[6] = sum32(this.h[6], g);
+  this.h[7] = sum32(this.h[7], h);
+};
 
-      var r = Q.affineX.mod(n)
-      if (r.signum() === 0)
-        return false
+SHA256.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
 
-      var s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
-      if (s.signum() === 0)
-        return false
+function SHA224() {
+  if (!(this instanceof SHA224))
+    return new SHA224();
 
-      return true
-    }
-  }
+  SHA256.call(this);
+  this.h = [ 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,
+             0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ];
+}
+utils.inherits(SHA224, SHA256);
+exports.sha224 = SHA224;
 
-  // sanity check
-  assert.equal(hash.length, 32, 'Hash must be 256 bit')
+SHA224.blockSize = 512;
+SHA224.outSize = 224;
+SHA224.hmacStrength = 192;
+SHA224.padLength = 64;
 
-  var x = d.toBuffer(32)
-  var k = new Buffer(32)
-  var v = new Buffer(32)
+SHA224.prototype._digest = function digest(enc) {
+  // Just truncate output
+  if (enc === 'hex')
+    return utils.toHex32(this.h.slice(0, 7), 'big');
+  else
+    return utils.split32(this.h.slice(0, 7), 'big');
+};
 
-  // Step A, ignored as hash already provided
-  // Step B
-  v.fill(1)
+function SHA512() {
+  if (!(this instanceof SHA512))
+    return new SHA512();
 
-  // Step C
-  k.fill(0)
+  BlockHash.call(this);
+  this.h = [ 0x6a09e667, 0xf3bcc908,
+             0xbb67ae85, 0x84caa73b,
+             0x3c6ef372, 0xfe94f82b,
+             0xa54ff53a, 0x5f1d36f1,
+             0x510e527f, 0xade682d1,
+             0x9b05688c, 0x2b3e6c1f,
+             0x1f83d9ab, 0xfb41bd6b,
+             0x5be0cd19, 0x137e2179 ];
+  this.k = sha512_K;
+  this.W = new Array(160);
+}
+utils.inherits(SHA512, BlockHash);
+exports.sha512 = SHA512;
 
-  // Step D
-  k = createHmac('sha256', k)
-    .update(v)
-    .update(ZERO)
-    .update(x)
-    .update(hash)
-    .digest()
+SHA512.blockSize = 1024;
+SHA512.outSize = 512;
+SHA512.hmacStrength = 192;
+SHA512.padLength = 128;
 
-  // Step E
-  v = createHmac('sha256', k).update(v).digest()
+SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
+  var W = this.W;
 
-  // Step F
-  k = createHmac('sha256', k)
-    .update(v)
-    .update(ONE)
-    .update(x)
-    .update(hash)
-    .digest()
+  // 32 x 32bit words
+  for (var i = 0; i < 32; i++)
+    W[i] = msg[start + i];
+  for (; i < W.length; i += 2) {
+    var c0_hi = g1_512_hi(W[i - 4], W[i - 3]);  // i - 2
+    var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
+    var c1_hi = W[i - 14];  // i - 7
+    var c1_lo = W[i - 13];
+    var c2_hi = g0_512_hi(W[i - 30], W[i - 29]);  // i - 15
+    var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
+    var c3_hi = W[i - 32];  // i - 16
+    var c3_lo = W[i - 31];
 
-  // Step G
-  v = createHmac('sha256', k).update(v).digest()
+    W[i] = sum64_4_hi(c0_hi, c0_lo,
+                      c1_hi, c1_lo,
+                      c2_hi, c2_lo,
+                      c3_hi, c3_lo);
+    W[i + 1] = sum64_4_lo(c0_hi, c0_lo,
+                          c1_hi, c1_lo,
+                          c2_hi, c2_lo,
+                          c3_hi, c3_lo);
+  }
+};
 
-  // Step H1/H2a, ignored as tlen === qlen (256 bit)
-  // Step H2b
-  v = createHmac('sha256', k).update(v).digest()
+SHA512.prototype._update = function _update(msg, start) {
+  this._prepareBlock(msg, start);
 
-  var T = BigInteger.fromBuffer(v)
+  var W = this.W;
 
-  // Step H3, repeat until T is within the interval [1, n - 1] and is suitable for ECDSA
-  while ((T.signum() <= 0) || (T.compareTo(curve.n) >= 0) || !checkSig(T)) {
-    k = createHmac('sha256', k)
-      .update(v)
-      .update(ZERO)
-      .digest()
+  var ah = this.h[0];
+  var al = this.h[1];
+  var bh = this.h[2];
+  var bl = this.h[3];
+  var ch = this.h[4];
+  var cl = this.h[5];
+  var dh = this.h[6];
+  var dl = this.h[7];
+  var eh = this.h[8];
+  var el = this.h[9];
+  var fh = this.h[10];
+  var fl = this.h[11];
+  var gh = this.h[12];
+  var gl = this.h[13];
+  var hh = this.h[14];
+  var hl = this.h[15];
 
-    v = createHmac('sha256', k).update(v).digest()
+  assert(this.k.length === W.length);
+  for (var i = 0; i < W.length; i += 2) {
+    var c0_hi = hh;
+    var c0_lo = hl;
+    var c1_hi = s1_512_hi(eh, el);
+    var c1_lo = s1_512_lo(eh, el);
+    var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
+    var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
+    var c3_hi = this.k[i];
+    var c3_lo = this.k[i + 1];
+    var c4_hi = W[i];
+    var c4_lo = W[i + 1];
 
-    // Step H1/H2a, again, ignored as tlen === qlen (256 bit)
-    // Step H2b again
-    v = createHmac('sha256', k).update(v).digest()
-    T = BigInteger.fromBuffer(v)
-  }
+    var T1_hi = sum64_5_hi(c0_hi, c0_lo,
+                           c1_hi, c1_lo,
+                           c2_hi, c2_lo,
+                           c3_hi, c3_lo,
+                           c4_hi, c4_lo);
+    var T1_lo = sum64_5_lo(c0_hi, c0_lo,
+                           c1_hi, c1_lo,
+                           c2_hi, c2_lo,
+                           c3_hi, c3_lo,
+                           c4_hi, c4_lo);
 
-  return T
-}
+    var c0_hi = s0_512_hi(ah, al);
+    var c0_lo = s0_512_lo(ah, al);
+    var c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
+    var c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
 
-function sign (curve, hash, d) {
-  var r, s
+    var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
+    var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
 
-  var e = BigInteger.fromBuffer(hash)
-  var n = curve.n
-  var G = curve.G
+    hh = gh;
+    hl = gl;
 
-  deterministicGenerateK(curve, hash, d, function (k) {
-    var Q = G.multiply(k)
+    gh = fh;
+    gl = fl;
 
-    if (curve.isInfinity(Q))
-      return false
+    fh = eh;
+    fl = el;
 
-    r = Q.affineX.mod(n)
-    if (r.signum() === 0)
-      return false
+    eh = sum64_hi(dh, dl, T1_hi, T1_lo);
+    el = sum64_lo(dl, dl, T1_hi, T1_lo);
 
-    s = k.modInverse(n).multiply(e.add(d.multiply(r))).mod(n)
-    if (s.signum() === 0)
-      return false
+    dh = ch;
+    dl = cl;
 
-    return true
-  })
+    ch = bh;
+    cl = bl;
 
-  var N_OVER_TWO = n.shiftRight(1)
+    bh = ah;
+    bl = al;
 
-  // enforce low S values, see bip62: 'low s values in signatures'
-  if (s.compareTo(N_OVER_TWO) > 0) {
-    s = n.subtract(s)
+    ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
+    al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
   }
 
-  return new ECSignature(r, s)
-}
-
-function verifyRaw (curve, e, signature, Q) {
-  var n = curve.n
-  var G = curve.G
+  sum64(this.h, 0, ah, al);
+  sum64(this.h, 2, bh, bl);
+  sum64(this.h, 4, ch, cl);
+  sum64(this.h, 6, dh, dl);
+  sum64(this.h, 8, eh, el);
+  sum64(this.h, 10, fh, fl);
+  sum64(this.h, 12, gh, gl);
+  sum64(this.h, 14, hh, hl);
+};
 
-  var r = signature.r
-  var s = signature.s
+SHA512.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
 
-  // 1.4.1 Enforce r and s are both integers in the interval [1, n − 1]
-  if (r.signum() <= 0 || r.compareTo(n) >= 0) return false
-  if (s.signum() <= 0 || s.compareTo(n) >= 0) return false
+function SHA384() {
+  if (!(this instanceof SHA384))
+    return new SHA384();
 
-  // c = s^-1 mod n
-  var c = s.modInverse(n)
+  SHA512.call(this);
+  this.h = [ 0xcbbb9d5d, 0xc1059ed8,
+             0x629a292a, 0x367cd507,
+             0x9159015a, 0x3070dd17,
+             0x152fecd8, 0xf70e5939,
+             0x67332667, 0xffc00b31,
+             0x8eb44a87, 0x68581511,
+             0xdb0c2e0d, 0x64f98fa7,
+             0x47b5481d, 0xbefa4fa4 ];
+}
+utils.inherits(SHA384, SHA512);
+exports.sha384 = SHA384;
 
-  // 1.4.4 Compute u1 = es^−1 mod n
-  //               u2 = rs^−1 mod n
-  var u1 = e.multiply(c).mod(n)
-  var u2 = r.multiply(c).mod(n)
+SHA384.blockSize = 1024;
+SHA384.outSize = 384;
+SHA384.hmacStrength = 192;
+SHA384.padLength = 128;
 
-  // 1.4.5 Compute R = (xR, yR) = u1G + u2Q
-  var R = G.multiplyTwo(u1, Q, u2)
-  var v = R.affineX.mod(n)
+SHA384.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h.slice(0, 12), 'big');
+  else
+    return utils.split32(this.h.slice(0, 12), 'big');
+};
 
-  // 1.4.5 (cont.) Enforce R is not at infinity
-  if (curve.isInfinity(R)) return false
+function SHA1() {
+  if (!(this instanceof SHA1))
+    return new SHA1();
 
-  // 1.4.8 If v = r, output "valid", and if v != r, output "invalid"
-  return v.equals(r)
+  BlockHash.call(this);
+  this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe,
+             0x10325476, 0xc3d2e1f0 ];
+  this.W = new Array(80);
 }
 
-function verify (curve, hash, signature, Q) {
-  // 1.4.2 H = Hash(M), already done by the user
-  // 1.4.3 e = H
-  var e = BigInteger.fromBuffer(hash)
-
-  return verifyRaw(curve, e, signature, Q)
-}
+utils.inherits(SHA1, BlockHash);
+exports.sha1 = SHA1;
 
-/**
-  * Recover a public key from a signature.
-  *
-  * See SEC 1: Elliptic Curve Cryptography, section 4.1.6, "Public
-  * Key Recovery Operation".
-  *
-  * http://www.secg.org/download/aid-780/sec1-v2.pdf
-  */
-function recoverPubKey (curve, e, signature, i) {
-  assert.strictEqual(i & 3, i, 'Recovery param is more than two bits')
+SHA1.blockSize = 512;
+SHA1.outSize = 160;
+SHA1.hmacStrength = 80;
+SHA1.padLength = 64;
 
-  var n = curve.n
-  var G = curve.G
+SHA1.prototype._update = function _update(msg, start) {
+  var W = this.W;
 
-  var r = signature.r
-  var s = signature.s
+  for (var i = 0; i < 16; i++)
+    W[i] = msg[start + i];
 
-  assert(r.signum() > 0 && r.compareTo(n) < 0, 'Invalid r value')
-  assert(s.signum() > 0 && s.compareTo(n) < 0, 'Invalid s value')
+  for(; i < W.length; i++)
+    W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);
 
-  // A set LSB signifies that the y-coordinate is odd
-  var isYOdd = i & 1
+  var a = this.h[0];
+  var b = this.h[1];
+  var c = this.h[2];
+  var d = this.h[3];
+  var e = this.h[4];
 
-  // The more significant bit specifies whether we should use the
-  // first or second candidate key.
-  var isSecondKey = i >> 1
+  for (var i = 0; i < W.length; i++) {
+    var s = ~~(i / 20);
+    var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]);
+    e = d;
+    d = c;
+    c = rotl32(b, 30);
+    b = a;
+    a = t;
+  }
 
-  // 1.1 Let x = r + jn
-  var x = isSecondKey ? r.add(n) : r
-  var R = curve.pointFromX(isYOdd, x)
+  this.h[0] = sum32(this.h[0], a);
+  this.h[1] = sum32(this.h[1], b);
+  this.h[2] = sum32(this.h[2], c);
+  this.h[3] = sum32(this.h[3], d);
+  this.h[4] = sum32(this.h[4], e);
+};
 
-  // 1.4 Check that nR is at infinity
-  var nR = R.multiply(n)
-  assert(curve.isInfinity(nR), 'nR is not a valid curve point')
+SHA1.prototype._digest = function digest(enc) {
+  if (enc === 'hex')
+    return utils.toHex32(this.h, 'big');
+  else
+    return utils.split32(this.h, 'big');
+};
 
-  // Compute -e from e
-  var eNeg = e.negate().mod(n)
+function ch32(x, y, z) {
+  return (x & y) ^ ((~x) & z);
+}
 
-  // 1.6.1 Compute Q = r^-1 (sR -  eG)
-  //               Q = r^-1 (sR + -eG)
-  var rInv = r.modInverse(n)
+function maj32(x, y, z) {
+  return (x & y) ^ (x & z) ^ (y & z);
+}
 
-  var Q = R.multiplyTwo(s, G, eNeg).multiply(rInv)
-  curve.validate(Q)
+function p32(x, y, z) {
+  return x ^ y ^ z;
+}
 
-  return Q
+function s0_256(x) {
+  return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22);
 }
 
-/**
-  * Calculate pubkey extraction parameter.
-  *
-  * When extracting a pubkey from a signature, we have to
-  * distinguish four different cases. Rather than putting this
-  * burden on the verifier, Bitcoin includes a 2-bit value with the
-  * signature.
-  *
-  * This function simply tries all four cases and returns the value
-  * that resulted in a successful pubkey recovery.
-  */
-function calcPubKeyRecoveryParam (curve, e, signature, Q) {
-  for (var i = 0; i < 4; i++) {
-    var Qprime = recoverPubKey(curve, e, signature, i)
+function s1_256(x) {
+  return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25);
+}
 
-    // 1.6.2 Verify Q
-    if (Qprime.equals(Q)) {
-      return i
-    }
-  }
+function g0_256(x) {
+  return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3);
+}
 
-  throw new Error('Unable to find valid recovery factor')
+function g1_256(x) {
+  return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10);
 }
 
-module.exports = {
-  calcPubKeyRecoveryParam: calcPubKeyRecoveryParam,
-  deterministicGenerateK: deterministicGenerateK,
-  recoverPubKey: recoverPubKey,
-  sign: sign,
-  verify: verify,
-  verifyRaw: verifyRaw
+function ft_1(s, x, y, z) {
+  if (s === 0)
+    return ch32(x, y, z);
+  if (s === 1 || s === 3)
+    return p32(x, y, z);
+  if (s === 2)
+    return maj32(x, y, z);
 }
 
-}).call(this,require("buffer").Buffer)
-},{"./ecsignature":62,"assert":5,"bigi":3,"buffer":7,"create-hmac":45,"typeforce":53}],60:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var base58check = require('bs58check')
-var ecdsa = require('./ecdsa')
-var networks = require('./networks')
-var randomBytes = require('randombytes')
-var typeForce = require('typeforce')
+function ch64_hi(xh, xl, yh, yl, zh, zl) {
+  var r = (xh & yh) ^ ((~xh) & zh);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
+function ch64_lo(xh, xl, yh, yl, zh, zl) {
+  var r = (xl & yl) ^ ((~xl) & zl);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
+function maj64_hi(xh, xl, yh, yl, zh, zl) {
+  var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-function ECKey (d, compressed) {
-  assert(d.signum() > 0, 'Private key must be greater than 0')
-  assert(d.compareTo(ECKey.curve.n) < 0, 'Private key must be less than the curve order')
+function maj64_lo(xh, xl, yh, yl, zh, zl) {
+  var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-  var Q = ECKey.curve.G.multiply(d)
+function s0_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 28);
+  var c1_hi = rotr64_hi(xl, xh, 2);  // 34
+  var c2_hi = rotr64_hi(xl, xh, 7);  // 39
 
-  this.d = d
-  this.pub = new ECPubKey(Q, compressed)
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
 }
 
-// Constants
-ECKey.curve = secp256k1
+function s0_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 28);
+  var c1_lo = rotr64_lo(xl, xh, 2);  // 34
+  var c2_lo = rotr64_lo(xl, xh, 7);  // 39
 
-// Static constructors
-ECKey.fromWIF = function (string) {
-  var payload = base58check.decode(string)
-  var compressed = false
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-  // Ignore the version byte
-  payload = payload.slice(1)
+function s1_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 14);
+  var c1_hi = rotr64_hi(xh, xl, 18);
+  var c2_hi = rotr64_hi(xl, xh, 9);  // 41
 
-  if (payload.length === 33) {
-    assert.strictEqual(payload[32], 0x01, 'Invalid compression flag')
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-    // Truncate the compression flag
-    payload = payload.slice(0, -1)
-    compressed = true
-  }
+function s1_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 14);
+  var c1_lo = rotr64_lo(xh, xl, 18);
+  var c2_lo = rotr64_lo(xl, xh, 9);  // 41
+
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-  assert.equal(payload.length, 32, 'Invalid WIF payload length')
+function g0_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 1);
+  var c1_hi = rotr64_hi(xh, xl, 8);
+  var c2_hi = shr64_hi(xh, xl, 7);
 
-  var d = BigInteger.fromBuffer(payload)
-  return new ECKey(d, compressed)
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
 }
 
-ECKey.makeRandom = function (compressed, rng) {
-  rng = rng || randomBytes
+function g0_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 1);
+  var c1_lo = rotr64_lo(xh, xl, 8);
+  var c2_lo = shr64_lo(xh, xl, 7);
 
-  var buffer = rng(32)
-  typeForce('Buffer', buffer)
-  assert.equal(buffer.length, 32, 'Expected 256-bit Buffer from RNG')
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-  var d = BigInteger.fromBuffer(buffer)
-  d = d.mod(ECKey.curve.n)
+function g1_512_hi(xh, xl) {
+  var c0_hi = rotr64_hi(xh, xl, 19);
+  var c1_hi = rotr64_hi(xl, xh, 29);  // 61
+  var c2_hi = shr64_hi(xh, xl, 6);
 
-  return new ECKey(d, compressed)
+  var r = c0_hi ^ c1_hi ^ c2_hi;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
 }
 
-// Export functions
-ECKey.prototype.toWIF = function (network) {
-  network = network || networks.bitcoin
+function g1_512_lo(xh, xl) {
+  var c0_lo = rotr64_lo(xh, xl, 19);
+  var c1_lo = rotr64_lo(xl, xh, 29);  // 61
+  var c2_lo = shr64_lo(xh, xl, 6);
 
-  var bufferLen = this.pub.compressed ? 34 : 33
-  var buffer = new Buffer(bufferLen)
+  var r = c0_lo ^ c1_lo ^ c2_lo;
+  if (r < 0)
+    r += 0x100000000;
+  return r;
+}
 
-  buffer.writeUInt8(network.wif, 0)
-  this.d.toBuffer(32).copy(buffer, 1)
+},{"../hash":114}],119:[function(require,module,exports){
+var utils = exports;
+var inherits = require('inherits');
 
-  if (this.pub.compressed) {
-    buffer.writeUInt8(0x01, 33)
+function toArray(msg, enc) {
+  if (Array.isArray(msg))
+    return msg.slice();
+  if (!msg)
+    return [];
+  var res = [];
+  if (typeof msg === 'string') {
+    if (!enc) {
+      for (var i = 0; i < msg.length; i++) {
+        var c = msg.charCodeAt(i);
+        var hi = c >> 8;
+        var lo = c & 0xff;
+        if (hi)
+          res.push(hi, lo);
+        else
+          res.push(lo);
+      }
+    } else if (enc === 'hex') {
+      msg = msg.replace(/[^a-z0-9]+/ig, '');
+      if (msg.length % 2 !== 0)
+        msg = '0' + msg;
+      for (var i = 0; i < msg.length; i += 2)
+        res.push(parseInt(msg[i] + msg[i + 1], 16));
+    }
+  } else {
+    for (var i = 0; i < msg.length; i++)
+      res[i] = msg[i] | 0;
   }
-
-  return base58check.encode(buffer)
+  return res;
 }
+utils.toArray = toArray;
 
-// Operations
-ECKey.prototype.sign = function (hash) {
-  return ecdsa.sign(ECKey.curve, hash, this.d)
+function toHex(msg) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++)
+    res += zero2(msg[i].toString(16));
+  return res;
 }
+utils.toHex = toHex;
 
-module.exports = ECKey
-
-}).call(this,require("buffer").Buffer)
-},{"./ecdsa":59,"./ecpubkey":61,"./networks":66,"assert":5,"bigi":3,"bs58check":31,"buffer":7,"ecurve":49,"randombytes":52,"typeforce":53}],61:[function(require,module,exports){
-(function (Buffer){
-var crypto = require('./crypto')
-var ecdsa = require('./ecdsa')
-var typeForce = require('typeforce')
-var networks = require('./networks')
-
-var Address = require('./address')
-
-var ecurve = require('ecurve')
-var secp256k1 = ecurve.getCurveByName('secp256k1')
+function htonl(w) {
+  var res = (w >>> 24) |
+            ((w >>> 8) & 0xff00) |
+            ((w << 8) & 0xff0000) |
+            ((w & 0xff) << 24);
+  return res >>> 0;
+}
+utils.htonl = htonl;
 
-function ECPubKey (Q, compressed) {
-  if (compressed === undefined) {
-    compressed = true
+function toHex32(msg, endian) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++) {
+    var w = msg[i];
+    if (endian === 'little')
+      w = htonl(w);
+    res += zero8(w.toString(16));
   }
+  return res;
+}
+utils.toHex32 = toHex32;
 
-  typeForce('Point', Q)
-  typeForce('Boolean', compressed)
-
-  this.compressed = compressed
-  this.Q = Q
+function zero2(word) {
+  if (word.length === 1)
+    return '0' + word;
+  else
+    return word;
 }
+utils.zero2 = zero2;
 
-// Constants
-ECPubKey.curve = secp256k1
+function zero8(word) {
+  if (word.length === 7)
+    return '0' + word;
+  else if (word.length === 6)
+    return '00' + word;
+  else if (word.length === 5)
+    return '000' + word;
+  else if (word.length === 4)
+    return '0000' + word;
+  else if (word.length === 3)
+    return '00000' + word;
+  else if (word.length === 2)
+    return '000000' + word;
+  else if (word.length === 1)
+    return '0000000' + word;
+  else
+    return word;
+}
+utils.zero8 = zero8;
 
-// Static constructors
-ECPubKey.fromBuffer = function (buffer) {
-  var Q = ecurve.Point.decodeFrom(ECPubKey.curve, buffer)
-  return new ECPubKey(Q, Q.compressed)
+function join32(msg, start, end, endian) {
+  var len = end - start;
+  assert(len % 4 === 0);
+  var res = new Array(len / 4);
+  for (var i = 0, k = start; i < res.length; i++, k += 4) {
+    var w;
+    if (endian === 'big')
+      w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3];
+    else
+      w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k];
+    res[i] = w >>> 0;
+  }
+  return res;
 }
+utils.join32 = join32;
 
-ECPubKey.fromHex = function (hex) {
-  return ECPubKey.fromBuffer(new Buffer(hex, 'hex'))
+function split32(msg, endian) {
+  var res = new Array(msg.length * 4);
+  for (var i = 0, k = 0; i < msg.length; i++, k += 4) {
+    var m = msg[i];
+    if (endian === 'big') {
+      res[k] = m >>> 24;
+      res[k + 1] = (m >>> 16) & 0xff;
+      res[k + 2] = (m >>> 8) & 0xff;
+      res[k + 3] = m & 0xff;
+    } else {
+      res[k + 3] = m >>> 24;
+      res[k + 2] = (m >>> 16) & 0xff;
+      res[k + 1] = (m >>> 8) & 0xff;
+      res[k] = m & 0xff;
+    }
+  }
+  return res;
 }
+utils.split32 = split32;
 
-// Operations
-ECPubKey.prototype.getAddress = function (network) {
-  network = network || networks.bitcoin
+function rotr32(w, b) {
+  return (w >>> b) | (w << (32 - b));
+}
+utils.rotr32 = rotr32;
 
-  return new Address(crypto.hash160(this.toBuffer()), network.pubKeyHash)
+function rotl32(w, b) {
+  return (w << b) | (w >>> (32 - b));
 }
+utils.rotl32 = rotl32;
 
-ECPubKey.prototype.verify = function (hash, signature) {
-  return ecdsa.verify(ECPubKey.curve, hash, signature, this.Q)
+function sum32(a, b) {
+  return (a + b) >>> 0;
 }
+utils.sum32 = sum32;
 
-// Export functions
-ECPubKey.prototype.toBuffer = function () {
-  return this.Q.getEncoded(this.compressed)
+function sum32_3(a, b, c) {
+  return (a + b + c) >>> 0;
 }
+utils.sum32_3 = sum32_3;
 
-ECPubKey.prototype.toHex = function () {
-  return this.toBuffer().toString('hex')
+function sum32_4(a, b, c, d) {
+  return (a + b + c + d) >>> 0;
 }
+utils.sum32_4 = sum32_4;
 
-module.exports = ECPubKey
+function sum32_5(a, b, c, d, e) {
+  return (a + b + c + d + e) >>> 0;
+}
+utils.sum32_5 = sum32_5;
 
-}).call(this,require("buffer").Buffer)
-},{"./address":54,"./crypto":58,"./ecdsa":59,"./networks":66,"buffer":7,"ecurve":49,"typeforce":53}],62:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var typeForce = require('typeforce')
+function assert(cond, msg) {
+  if (!cond)
+    throw new Error(msg || 'Assertion failed');
+}
+utils.assert = assert;
 
-var BigInteger = require('bigi')
+utils.inherits = inherits;
 
-function ECSignature (r, s) {
-  typeForce('BigInteger', r)
-  typeForce('BigInteger', s)
+function sum64(buf, pos, ah, al) {
+  var bh = buf[pos];
+  var bl = buf[pos + 1];
 
-  this.r = r
-  this.s = s
+  var lo = (al + bl) >>> 0;
+  var hi = (lo < al ? 1 : 0) + ah + bh;
+  buf[pos] = hi >>> 0;
+  buf[pos + 1] = lo;
 }
+exports.sum64 = sum64;
 
-ECSignature.parseCompact = function (buffer) {
-  assert.equal(buffer.length, 65, 'Invalid signature length')
-  var i = buffer.readUInt8(0) - 27
+function sum64_hi(ah, al, bh, bl) {
+  var lo = (al + bl) >>> 0;
+  var hi = (lo < al ? 1 : 0) + ah + bh;
+  return hi >>> 0;
+};
+exports.sum64_hi = sum64_hi;
+
+function sum64_lo(ah, al, bh, bl) {
+  var lo = al + bl;
+  return lo >>> 0;
+};
+exports.sum64_lo = sum64_lo;
 
-  // At most 3 bits
-  assert.equal(i, i & 7, 'Invalid signature parameter')
-  var compressed = !!(i & 4)
+function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) {
+  var carry = 0;
+  var lo = al;
+  lo = (lo + bl) >>> 0;
+  carry += lo < al ? 1 : 0;
+  lo = (lo + cl) >>> 0;
+  carry += lo < cl ? 1 : 0;
+  lo = (lo + dl) >>> 0;
+  carry += lo < dl ? 1 : 0;
 
-  // Recovery param only
-  i = i & 3
+  var hi = ah + bh + ch + dh + carry;
+  return hi >>> 0;
+};
+exports.sum64_4_hi = sum64_4_hi;
 
-  var r = BigInteger.fromBuffer(buffer.slice(1, 33))
-  var s = BigInteger.fromBuffer(buffer.slice(33))
+function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) {
+  var lo = al + bl + cl + dl;
+  return lo >>> 0;
+};
+exports.sum64_4_lo = sum64_4_lo;
 
-  return {
-    compressed: compressed,
-    i: i,
-    signature: new ECSignature(r, s)
-  }
-}
+function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
+  var carry = 0;
+  var lo = al;
+  lo = (lo + bl) >>> 0;
+  carry += lo < al ? 1 : 0;
+  lo = (lo + cl) >>> 0;
+  carry += lo < cl ? 1 : 0;
+  lo = (lo + dl) >>> 0;
+  carry += lo < dl ? 1 : 0;
+  lo = (lo + el) >>> 0;
+  carry += lo < el ? 1 : 0;
 
-ECSignature.fromDER = function (buffer) {
-  assert.equal(buffer.readUInt8(0), 0x30, 'Not a DER sequence')
-  assert.equal(buffer.readUInt8(1), buffer.length - 2, 'Invalid sequence length')
-  assert.equal(buffer.readUInt8(2), 0x02, 'Expected a DER integer')
+  var hi = ah + bh + ch + dh + eh + carry;
+  return hi >>> 0;
+};
+exports.sum64_5_hi = sum64_5_hi;
 
-  var rLen = buffer.readUInt8(3)
-  assert(rLen > 0, 'R length is zero')
+function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) {
+  var lo = al + bl + cl + dl + el;
 
-  var offset = 4 + rLen
-  assert.equal(buffer.readUInt8(offset), 0x02, 'Expected a DER integer (2)')
+  return lo >>> 0;
+};
+exports.sum64_5_lo = sum64_5_lo;
 
-  var sLen = buffer.readUInt8(offset + 1)
-  assert(sLen > 0, 'S length is zero')
+function rotr64_hi(ah, al, num) {
+  var r = (al << (32 - num)) | (ah >>> num);
+  return r >>> 0;
+};
+exports.rotr64_hi = rotr64_hi;
 
-  var rB = buffer.slice(4, offset)
-  var sB = buffer.slice(offset + 2)
-  offset += 2 + sLen
+function rotr64_lo(ah, al, num) {
+  var r = (ah << (32 - num)) | (al >>> num);
+  return r >>> 0;
+};
+exports.rotr64_lo = rotr64_lo;
 
-  if (rLen > 1 && rB.readUInt8(0) === 0x00) {
-    assert(rB.readUInt8(1) & 0x80, 'R value excessively padded')
-  }
+function shr64_hi(ah, al, num) {
+  return ah >>> num;
+};
+exports.shr64_hi = shr64_hi;
 
-  if (sLen > 1 && sB.readUInt8(0) === 0x00) {
-    assert(sB.readUInt8(1) & 0x80, 'S value excessively padded')
-  }
+function shr64_lo(ah, al, num) {
+  var r = (ah << (32 - num)) | (al >>> num);
+  return r >>> 0;
+};
+exports.shr64_lo = shr64_lo;
 
-  assert.equal(offset, buffer.length, 'Invalid DER encoding')
-  var r = BigInteger.fromDERInteger(rB)
-  var s = BigInteger.fromDERInteger(sB)
+},{"inherits":121}],120:[function(require,module,exports){
+'use strict';
 
-  assert(r.signum() >= 0, 'R value is negative')
-  assert(s.signum() >= 0, 'S value is negative')
+var hash = require('hash.js');
+var utils = require('minimalistic-crypto-utils');
+var assert = require('minimalistic-assert');
 
-  return new ECSignature(r, s)
-}
+function HmacDRBG(options) {
+  if (!(this instanceof HmacDRBG))
+    return new HmacDRBG(options);
+  this.hash = options.hash;
+  this.predResist = !!options.predResist;
 
-// BIP62: 1 byte hashType flag (only 0x01, 0x02, 0x03, 0x81, 0x82 and 0x83 are allowed)
-ECSignature.parseScriptSignature = function (buffer) {
-  var hashType = buffer.readUInt8(buffer.length - 1)
-  var hashTypeMod = hashType & ~0x80
+  this.outLen = this.hash.outSize;
+  this.minEntropy = options.minEntropy || this.hash.hmacStrength;
 
-  assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid hashType ' + hashType)
+  this._reseed = null;
+  this.reseedInterval = null;
+  this.K = null;
+  this.V = null;
 
-  return {
-    signature: ECSignature.fromDER(buffer.slice(0, -1)),
-    hashType: hashType
-  }
+  var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex');
+  var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex');
+  var pers = utils.toArray(options.pers, options.persEnc || 'hex');
+  assert(entropy.length >= (this.minEntropy / 8),
+         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
+  this._init(entropy, nonce, pers);
 }
+module.exports = HmacDRBG;
 
-ECSignature.prototype.toCompact = function (i, compressed) {
-  if (compressed) {
-    i += 4
-  }
+HmacDRBG.prototype._init = function init(entropy, nonce, pers) {
+  var seed = entropy.concat(nonce).concat(pers);
 
-  i += 27
+  this.K = new Array(this.outLen / 8);
+  this.V = new Array(this.outLen / 8);
+  for (var i = 0; i < this.V.length; i++) {
+    this.K[i] = 0x00;
+    this.V[i] = 0x01;
+  }
 
-  var buffer = new Buffer(65)
-  buffer.writeUInt8(i, 0)
+  this._update(seed);
+  this._reseed = 1;
+  this.reseedInterval = 0x1000000000000;  // 2^48
+};
 
-  this.r.toBuffer(32).copy(buffer, 1)
-  this.s.toBuffer(32).copy(buffer, 33)
+HmacDRBG.prototype._hmac = function hmac() {
+  return new hash.hmac(this.hash, this.K);
+};
 
-  return buffer
-}
+HmacDRBG.prototype._update = function update(seed) {
+  var kmac = this._hmac()
+                 .update(this.V)
+                 .update([ 0x00 ]);
+  if (seed)
+    kmac = kmac.update(seed);
+  this.K = kmac.digest();
+  this.V = this._hmac().update(this.V).digest();
+  if (!seed)
+    return;
 
-ECSignature.prototype.toDER = function () {
-  var rBa = this.r.toDERInteger()
-  var sBa = this.s.toDERInteger()
+  this.K = this._hmac()
+               .update(this.V)
+               .update([ 0x01 ])
+               .update(seed)
+               .digest();
+  this.V = this._hmac().update(this.V).digest();
+};
 
-  var sequence = []
+HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) {
+  // Optional entropy enc
+  if (typeof entropyEnc !== 'string') {
+    addEnc = add;
+    add = entropyEnc;
+    entropyEnc = null;
+  }
 
-  // INTEGER
-  sequence.push(0x02, rBa.length)
-  sequence = sequence.concat(rBa)
+  entropy = utils.toArray(entropy, entropyEnc);
+  add = utils.toArray(add, addEnc);
 
-  // INTEGER
-  sequence.push(0x02, sBa.length)
-  sequence = sequence.concat(sBa)
+  assert(entropy.length >= (this.minEntropy / 8),
+         'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits');
 
-  // SEQUENCE
-  sequence.unshift(0x30, sequence.length)
+  this._update(entropy.concat(add || []));
+  this._reseed = 1;
+};
 
-  return new Buffer(sequence)
-}
+HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) {
+  if (this._reseed > this.reseedInterval)
+    throw new Error('Reseed is required');
 
-ECSignature.prototype.toScriptSignature = function (hashType) {
-  var hashTypeMod = hashType & ~0x80
-  assert(hashTypeMod > 0x00 && hashTypeMod < 0x04, 'Invalid hashType ' + hashType)
+  // Optional encoding
+  if (typeof enc !== 'string') {
+    addEnc = add;
+    add = enc;
+    enc = null;
+  }
 
-  var hashTypeBuffer = new Buffer(1)
-  hashTypeBuffer.writeUInt8(hashType, 0)
+  // Optional additional data
+  if (add) {
+    add = utils.toArray(add, addEnc || 'hex');
+    this._update(add);
+  }
 
-  return Buffer.concat([this.toDER(), hashTypeBuffer])
-}
+  var temp = [];
+  while (temp.length < len) {
+    this.V = this._hmac().update(this.V).digest();
+    temp = temp.concat(this.V);
+  }
 
-module.exports = ECSignature
+  var res = temp.slice(0, len);
+  this._update(add);
+  this._reseed++;
+  return utils.encode(res, enc);
+};
 
-}).call(this,require("buffer").Buffer)
-},{"assert":5,"bigi":3,"buffer":7,"typeforce":53}],63:[function(require,module,exports){
+},{"hash.js":114,"minimalistic-assert":123,"minimalistic-crypto-utils":124}],121:[function(require,module,exports){
+arguments[4][9][0].apply(exports,arguments)
+},{"dup":9}],122:[function(require,module,exports){
 (function (Buffer){
-var assert = require('assert')
-var base58check = require('bs58check')
-var bcrypto = require('./crypto')
-var createHmac = require('create-hmac')
-var typeForce = require('typeforce')
-var networks = require('./networks')
+// constant-space merkle root calculation algorithm
+module.exports = function fastRoot (values, digestFn) {
+  if (!Array.isArray(values)) throw TypeError('Expected values Array')
+  if (typeof digestFn !== 'function') throw TypeError('Expected digest Function')
 
-var BigInteger = require('bigi')
-var ECKey = require('./eckey')
-var ECPubKey = require('./ecpubkey')
+  var length = values.length
+  var results = values.concat()
 
-var ecurve = require('ecurve')
-var curve = ecurve.getCurveByName('secp256k1')
+  while (length > 1) {
+    var j = 0
 
-function findBIP32NetworkByVersion (version) {
-  for (var name in networks) {
-    var network = networks[name]
+    for (var i = 0; i < length; i += 2, ++j) {
+      var left = results[i]
+      var right = i + 1 === length ? left : results[i + 1]
+      var data = Buffer.concat([left, right])
 
-    if (version === network.bip32.private || version === network.bip32.public) {
-      return network
+      results[j] = digestFn(data)
     }
+
+    length = j
   }
 
-  assert(false, 'Could not find network for ' + version.toString(16))
+  return results[0]
 }
 
-function HDNode (K, chainCode, network) {
-  network = network || networks.bitcoin
-
-  typeForce('Buffer', chainCode)
-
-  assert.equal(chainCode.length, 32, 'Expected chainCode length of 32, got ' + chainCode.length)
-  assert(network.bip32, 'Unknown BIP32 constants for network')
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],123:[function(require,module,exports){
+module.exports = assert;
 
-  this.chainCode = chainCode
-  this.depth = 0
-  this.index = 0
-  this.parentFingerprint = 0x00000000
-  this.network = network
-
-  if (K instanceof BigInteger) {
-    this.privKey = new ECKey(K, true)
-    this.pubKey = this.privKey.pub
-  } else if (K instanceof ECKey) {
-    assert(K.pub.compressed, 'ECKey must be compressed')
-    this.privKey = K
-    this.pubKey = K.pub
-  } else if (K instanceof ECPubKey) {
-    assert(K.compressed, 'ECPubKey must be compressed')
-    this.pubKey = K
-  } else {
-    this.pubKey = new ECPubKey(K, true)
-  }
+function assert(val, msg) {
+  if (!val)
+    throw new Error(msg || 'Assertion failed');
 }
 
-HDNode.MASTER_SECRET = new Buffer('Bitcoin seed')
-HDNode.HIGHEST_BIT = 0x80000000
-HDNode.LENGTH = 78
-
-HDNode.fromSeedBuffer = function (seed, network) {
-  typeForce('Buffer', seed)
+assert.equal = function assertEqual(l, r, msg) {
+  if (l != r)
+    throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r));
+};
 
-  assert(seed.length >= 16, 'Seed should be at least 128 bits')
-  assert(seed.length <= 64, 'Seed should be at most 512 bits')
+},{}],124:[function(require,module,exports){
+'use strict';
 
-  var I = createHmac('sha512', HDNode.MASTER_SECRET).update(seed).digest()
-  var IL = I.slice(0, 32)
-  var IR = I.slice(32)
+var utils = exports;
 
-  // In case IL is 0 or >= n, the master key is invalid
-  // This is handled by `new ECKey` in the HDNode constructor
-  var pIL = BigInteger.fromBuffer(IL)
+function toArray(msg, enc) {
+  if (Array.isArray(msg))
+    return msg.slice();
+  if (!msg)
+    return [];
+  var res = [];
+  if (typeof msg !== 'string') {
+    for (var i = 0; i < msg.length; i++)
+      res[i] = msg[i] | 0;
+    return res;
+  }
+  if (enc === 'hex') {
+    msg = msg.replace(/[^a-z0-9]+/ig, '');
+    if (msg.length % 2 !== 0)
+      msg = '0' + msg;
+    for (var i = 0; i < msg.length; i += 2)
+      res.push(parseInt(msg[i] + msg[i + 1], 16));
+  } else {
+    for (var i = 0; i < msg.length; i++) {
+      var c = msg.charCodeAt(i);
+      var hi = c >> 8;
+      var lo = c & 0xff;
+      if (hi)
+        res.push(hi, lo);
+      else
+        res.push(lo);
+    }
+  }
+  return res;
+}
+utils.toArray = toArray;
 
-  return new HDNode(pIL, IR, network)
+function zero2(word) {
+  if (word.length === 1)
+    return '0' + word;
+  else
+    return word;
 }
+utils.zero2 = zero2;
 
-HDNode.fromSeedHex = function (hex, network) {
-  return HDNode.fromSeedBuffer(new Buffer(hex, 'hex'), network)
+function toHex(msg) {
+  var res = '';
+  for (var i = 0; i < msg.length; i++)
+    res += zero2(msg[i].toString(16));
+  return res;
 }
+utils.toHex = toHex;
+
+utils.encode = function encode(arr, enc) {
+  if (enc === 'hex')
+    return toHex(arr);
+  else
+    return arr;
+};
+
+},{}],125:[function(require,module,exports){
+var OPS = require('bitcoin-ops')
 
-HDNode.fromBase58 = function (string, network) {
-  return HDNode.fromBuffer(base58check.decode(string), network, true)
+function encodingLength (i) {
+  return i < OPS.OP_PUSHDATA1 ? 1
+  : i <= 0xff ? 2
+  : i <= 0xffff ? 3
+  : 5
 }
 
-// FIXME: remove in 2.x.y
-HDNode.fromBuffer = function (buffer, network, __ignoreDeprecation) {
-  if (!__ignoreDeprecation) {
-    console.warn('HDNode.fromBuffer() is deprecated for removal in 2.x.y, use fromBase58 instead')
-  }
+function encode (buffer, number, offset) {
+  var size = encodingLength(number)
 
-  assert.strictEqual(buffer.length, HDNode.LENGTH, 'Invalid buffer length')
+  // ~6 bit
+  if (size === 1) {
+    buffer.writeUInt8(number, offset)
 
-  // 4 byte: version bytes
-  var version = buffer.readUInt32BE(0)
+  // 8 bit
+  } else if (size === 2) {
+    buffer.writeUInt8(OPS.OP_PUSHDATA1, offset)
+    buffer.writeUInt8(number, offset + 1)
 
-  if (network) {
-    assert(version === network.bip32.private || version === network.bip32.public, "Network doesn't match")
+  // 16 bit
+  } else if (size === 3) {
+    buffer.writeUInt8(OPS.OP_PUSHDATA2, offset)
+    buffer.writeUInt16LE(number, offset + 1)
 
-  // auto-detect
+  // 32 bit
   } else {
-    network = findBIP32NetworkByVersion(version)
+    buffer.writeUInt8(OPS.OP_PUSHDATA4, offset)
+    buffer.writeUInt32LE(number, offset + 1)
   }
 
-  // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ...
-  var depth = buffer.readUInt8(4)
+  return size
+}
 
-  // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
-  var parentFingerprint = buffer.readUInt32BE(5)
-  if (depth === 0) {
-    assert.strictEqual(parentFingerprint, 0x00000000, 'Invalid parent fingerprint')
-  }
+function decode (buffer, offset) {
+  var opcode = buffer.readUInt8(offset)
+  var number, size
 
-  // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
-  // This is encoded in MSB order. (0x00000000 if master key)
-  var index = buffer.readUInt32BE(9)
-  assert(depth > 0 || index === 0, 'Invalid index')
+  // ~6 bit
+  if (opcode < OPS.OP_PUSHDATA1) {
+    number = opcode
+    size = 1
 
-  // 32 bytes: the chain code
-  var chainCode = buffer.slice(13, 45)
-  var data, hd
+  // 8 bit
+  } else if (opcode === OPS.OP_PUSHDATA1) {
+    if (offset + 2 > buffer.length) return null
+    number = buffer.readUInt8(offset + 1)
+    size = 2
 
-  // 33 bytes: private key data (0x00 + k)
-  if (version === network.bip32.private) {
-    assert.strictEqual(buffer.readUInt8(45), 0x00, 'Invalid private key')
-    data = buffer.slice(46, 78)
-    var d = BigInteger.fromBuffer(data)
-    hd = new HDNode(d, chainCode, network)
+  // 16 bit
+  } else if (opcode === OPS.OP_PUSHDATA2) {
+    if (offset + 3 > buffer.length) return null
+    number = buffer.readUInt16LE(offset + 1)
+    size = 3
 
-  // 33 bytes: public key data (0x02 + X or 0x03 + X)
+  // 32 bit
   } else {
-    data = buffer.slice(45, 78)
-    var Q = ecurve.Point.decodeFrom(curve, data)
-    assert.equal(Q.compressed, true, 'Invalid public key')
-
-    // Verify that the X coordinate in the public point corresponds to a point on the curve.
-    // If not, the extended public key is invalid.
-    curve.validate(Q)
+    if (offset + 5 > buffer.length) return null
+    if (opcode !== OPS.OP_PUSHDATA4) throw new Error('Unexpected opcode')
 
-    hd = new HDNode(Q, chainCode, network)
+    number = buffer.readUInt32LE(offset + 1)
+    size = 5
   }
 
-  hd.depth = depth
-  hd.index = index
-  hd.parentFingerprint = parentFingerprint
-
-  return hd
-}
-
-// FIXME: remove in 2.x.y
-HDNode.fromHex = function (hex, network) {
-  return HDNode.fromBuffer(new Buffer(hex, 'hex'), network)
+  return {
+    opcode: opcode,
+    number: number,
+    size: size
+  }
 }
 
-HDNode.prototype.getIdentifier = function () {
-  return bcrypto.hash160(this.pubKey.toBuffer())
+module.exports = {
+  encodingLength: encodingLength,
+  encode: encode,
+  decode: decode
 }
 
-HDNode.prototype.getFingerprint = function () {
-  return this.getIdentifier().slice(0, 4)
-}
+},{"bitcoin-ops":42}],126:[function(require,module,exports){
+(function (process,global){
+'use strict'
 
-HDNode.prototype.getAddress = function () {
-  return this.pubKey.getAddress(this.network)
+function oldBrowser () {
+  throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11')
 }
 
-HDNode.prototype.neutered = function () {
-  var neutered = new HDNode(this.pubKey.Q, this.chainCode, this.network)
-  neutered.depth = this.depth
-  neutered.index = this.index
-  neutered.parentFingerprint = this.parentFingerprint
-
-  return neutered
-}
+var Buffer = require('safe-buffer').Buffer
+var crypto = global.crypto || global.msCrypto
 
-HDNode.prototype.toBase58 = function (isPrivate) {
-  return base58check.encode(this.toBuffer(isPrivate, true))
+if (crypto && crypto.getRandomValues) {
+  module.exports = randomBytes
+} else {
+  module.exports = oldBrowser
 }
 
-// FIXME: remove in 2.x.y
-HDNode.prototype.toBuffer = function (isPrivate, __ignoreDeprecation) {
-  if (isPrivate === undefined) {
-    isPrivate = !!this.privKey
+function randomBytes (size, cb) {
+  // phantomjs needs to throw
+  if (size > 65536) throw new Error('requested too many random bytes')
+  // in case browserify  isn't using the Uint8Array version
+  var rawBytes = new global.Uint8Array(size)
 
-  // FIXME: remove in 2.x.y
-  } else {
-    console.warn('isPrivate flag is deprecated, please use the .neutered() method instead')
+  // This will not work in older browsers.
+  // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues
+  if (size > 0) {  // getRandomValues fails on IE if size == 0
+    crypto.getRandomValues(rawBytes)
   }
 
-  if (!__ignoreDeprecation) {
-    console.warn('HDNode.toBuffer() is deprecated for removal in 2.x.y, use toBase58 instead')
-  }
+  // XXX: phantomjs doesn't like a buffer being passed here
+  var bytes = Buffer.from(rawBytes.buffer)
 
-  // Version
-  var version = isPrivate ? this.network.bip32.private : this.network.bip32.public
-  var buffer = new Buffer(HDNode.LENGTH)
+  if (typeof cb === 'function') {
+    return process.nextTick(function () {
+      cb(null, bytes)
+    })
+  }
 
-  // 4 bytes: version bytes
-  buffer.writeUInt32BE(version, 0)
+  return bytes
+}
 
-  // Depth
-  // 1 byte: depth: 0x00 for master nodes, 0x01 for level-1 descendants, ....
-  buffer.writeUInt8(this.depth, 4)
+}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"_process":13,"safe-buffer":128}],127:[function(require,module,exports){
+(function (Buffer){
+'use strict'
+var inherits = require('inherits')
+var HashBase = require('hash-base')
 
-  // 4 bytes: the fingerprint of the parent's key (0x00000000 if master key)
-  buffer.writeUInt32BE(this.parentFingerprint, 5)
+function RIPEMD160 () {
+  HashBase.call(this, 64)
 
-  // 4 bytes: child number. This is the number i in xi = xpar/i, with xi the key being serialized.
-  // This is encoded in Big endian. (0x00000000 if master key)
-  buffer.writeUInt32BE(this.index, 9)
+  // state
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
+}
 
-  // 32 bytes: the chain code
-  this.chainCode.copy(buffer, 13)
+inherits(RIPEMD160, HashBase)
+
+RIPEMD160.prototype._update = function () {
+  var m = new Array(16)
+  for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4)
+
+  var al = this._a
+  var bl = this._b
+  var cl = this._c
+  var dl = this._d
+  var el = this._e
+
+  // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+  // K = 0x00000000
+  // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
+  al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10)
+  el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10)
+  dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10)
+  cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10)
+  bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10)
+  al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10)
+
+  // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
+  // K = 0x5a827999
+  // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
+  el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10)
+  dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10)
+  cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10)
+  bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10)
+  al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10)
+  el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10)
+
+  // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
+  // K = 0x6ed9eba1
+  // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
+  dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10)
+  cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10)
+  bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10)
+  al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10)
+  el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10)
+  dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10)
+
+  // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
+  // K = 0x8f1bbcdc
+  // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
+  cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10)
+  bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10)
+  al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10)
+  el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10)
+  dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10)
+  cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10)
+
+  // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+  // K = 0xa953fd4e
+  // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+  bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10)
+  al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10)
+  el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10)
+  dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10)
+  cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10)
+  bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10)
+
+  var ar = this._a
+  var br = this._b
+  var cr = this._c
+  var dr = this._d
+  var er = this._e
+
+  // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
+  // K' = 0x50a28be6
+  // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
+  ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10)
+  er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10)
+  dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10)
+  cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10)
+  br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10)
+  ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10)
+
+  // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
+  // K' = 0x5c4dd124
+  // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
+  er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10)
+  dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10)
+  cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10)
+  br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10)
+  ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10)
+  er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10)
+
+  // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
+  // K' = 0x6d703ef3
+  // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
+  dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10)
+  cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10)
+  br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10)
+  ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10)
+  er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10)
+  dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10)
+
+  // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
+  // K' = 0x7a6d76e9
+  // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
+  cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10)
+  br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10)
+  ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10)
+  er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10)
+  dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10)
+  cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10)
+
+  // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+  // K' = 0x00000000
+  // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+  br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10)
+  ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10)
+  er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10)
+  dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10)
+  cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10)
+  br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10)
+
+  // change state
+  var t = (this._b + cl + dr) | 0
+  this._b = (this._c + dl + er) | 0
+  this._c = (this._d + el + ar) | 0
+  this._d = (this._e + al + br) | 0
+  this._e = (this._a + bl + cr) | 0
+  this._a = t
+}
+
+RIPEMD160.prototype._digest = function () {
+  // create padding and handle blocks
+  this._block[this._blockOffset++] = 0x80
+  if (this._blockOffset > 56) {
+    this._block.fill(0, this._blockOffset, 64)
+    this._update()
+    this._blockOffset = 0
+  }
+
+  this._block.fill(0, this._blockOffset, 56)
+  this._block.writeUInt32LE(this._length[0], 56)
+  this._block.writeUInt32LE(this._length[1], 60)
+  this._update()
+
+  // produce result
+  var buffer = new Buffer(20)
+  buffer.writeInt32LE(this._a, 0)
+  buffer.writeInt32LE(this._b, 4)
+  buffer.writeInt32LE(this._c, 8)
+  buffer.writeInt32LE(this._d, 12)
+  buffer.writeInt32LE(this._e, 16)
+  return buffer
+}
 
-  // 33 bytes: the public key or private key data
-  if (isPrivate) {
-    // FIXME: remove in 2.x.y
-    assert(this.privKey, 'Missing private key')
+function rotl (x, n) {
+  return (x << n) | (x >>> (32 - n))
+}
 
-    // 0x00 + k for private keys
-    buffer.writeUInt8(0, 45)
-    this.privKey.d.toBuffer(32).copy(buffer, 46)
-  } else {
-    // X9.62 encoding for public keys
-    this.pubKey.toBuffer().copy(buffer, 45)
-  }
+function fn1 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
+}
 
-  return buffer
+function fn2 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
 }
 
-// FIXME: remove in 2.x.y
-HDNode.prototype.toHex = function (isPrivate) {
-  return this.toBuffer(isPrivate).toString('hex')
+function fn3 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
 }
 
-// https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#child-key-derivation-ckd-functions
-HDNode.prototype.derive = function (index) {
-  var isHardened = index >= HDNode.HIGHEST_BIT
-  var indexBuffer = new Buffer(4)
-  indexBuffer.writeUInt32BE(index, 0)
+function fn4 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
+}
 
-  var data
+function fn5 (a, b, c, d, e, m, k, s) {
+  return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
+}
 
-  // Hardened child
-  if (isHardened) {
-    assert(this.privKey, 'Could not derive hardened child key')
+module.exports = RIPEMD160
 
-    // data = 0x00 || ser256(kpar) || ser32(index)
-    data = Buffer.concat([
-      this.privKey.d.toBuffer(33),
-      indexBuffer
-    ])
+}).call(this,require("buffer").Buffer)
+},{"buffer":5,"hash-base":113,"inherits":121}],128:[function(require,module,exports){
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
 
-  // Normal child
-  } else {
-    // data = serP(point(kpar)) || ser32(index)
-    //      = serP(Kpar) || ser32(index)
-    data = Buffer.concat([
-      this.pubKey.toBuffer(),
-      indexBuffer
-    ])
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+  for (var key in src) {
+    dst[key] = src[key]
   }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+  module.exports = buffer
+} else {
+  // Copy properties from require('buffer')
+  copyProps(buffer, exports)
+  exports.Buffer = SafeBuffer
+}
 
-  var I = createHmac('sha512', this.chainCode).update(data).digest()
-  var IL = I.slice(0, 32)
-  var IR = I.slice(32)
+function SafeBuffer (arg, encodingOrOffset, length) {
+  return Buffer(arg, encodingOrOffset, length)
+}
 
-  var pIL = BigInteger.fromBuffer(IL)
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
 
-  // In case parse256(IL) >= n, proceed with the next value for i
-  if (pIL.compareTo(curve.n) >= 0) {
-    return this.derive(index + 1)
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+  if (typeof arg === 'number') {
+    throw new TypeError('Argument must not be a number')
   }
+  return Buffer(arg, encodingOrOffset, length)
+}
 
-  // Private parent key -> private child key
-  var hd
-  if (this.privKey) {
-    // ki = parse256(IL) + kpar (mod n)
-    var ki = pIL.add(this.privKey.d).mod(curve.n)
-
-    // In case ki == 0, proceed with the next value for i
-    if (ki.signum() === 0) {
-      return this.derive(index + 1)
+SafeBuffer.alloc = function (size, fill, encoding) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  var buf = Buffer(size)
+  if (fill !== undefined) {
+    if (typeof encoding === 'string') {
+      buf.fill(fill, encoding)
+    } else {
+      buf.fill(fill)
     }
-
-    hd = new HDNode(ki, IR, this.network)
-
-  // Public parent key -> public child key
   } else {
-    // Ki = point(parse256(IL)) + Kpar
-    //    = G*IL + Kpar
-    var Ki = curve.G.multiply(pIL).add(this.pubKey.Q)
-
-    // In case Ki is the point at infinity, proceed with the next value for i
-    if (curve.isInfinity(Ki)) {
-      return this.derive(index + 1)
-    }
-
-    hd = new HDNode(Ki, IR, this.network)
+    buf.fill(0)
   }
-
-  hd.depth = this.depth + 1
-  hd.index = index
-  hd.parentFingerprint = this.getFingerprint().readUInt32BE(0)
-
-  return hd
-}
-
-HDNode.prototype.deriveHardened = function (index) {
-  // Only derives hardened private keys by default
-  return this.derive(index + HDNode.HIGHEST_BIT)
+  return buf
 }
 
-HDNode.prototype.toString = HDNode.prototype.toBase58
-
-module.exports = HDNode
-
-}).call(this,require("buffer").Buffer)
-},{"./crypto":58,"./eckey":60,"./ecpubkey":61,"./networks":66,"assert":5,"bigi":3,"bs58check":31,"buffer":7,"create-hmac":45,"ecurve":49,"typeforce":53}],64:[function(require,module,exports){
-module.exports = {
-  Address: require('./address'),
-  base58check: require('./base58check'),
-  Block: require('./block'),
-  bufferutils: require('./bufferutils'),
-  crypto: require('./crypto'),
-  ecdsa: require('./ecdsa'),
-  ECKey: require('./eckey'),
-  ECPubKey: require('./ecpubkey'),
-  ECSignature: require('./ecsignature'),
-  Message: require('./message'),
-  opcodes: require('./opcodes'),
-  HDNode: require('./hdnode'),
-  Script: require('./script'),
-  scripts: require('./scripts'),
-  Transaction: require('./transaction'),
-  TransactionBuilder: require('./transaction_builder'),
-  networks: require('./networks'),
-  Wallet: require('./wallet')
+SafeBuffer.allocUnsafe = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return Buffer(size)
 }
 
-},{"./address":54,"./base58check":55,"./block":56,"./bufferutils":57,"./crypto":58,"./ecdsa":59,"./eckey":60,"./ecpubkey":61,"./ecsignature":62,"./hdnode":63,"./message":65,"./networks":66,"./opcodes":67,"./script":68,"./scripts":69,"./transaction":70,"./transaction_builder":71,"./wallet":72}],65:[function(require,module,exports){
-(function (Buffer){
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var ecdsa = require('./ecdsa')
-var networks = require('./networks')
-
-var BigInteger = require('bigi')
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
-
-var ecurve = require('ecurve')
-var ecparams = ecurve.getCurveByName('secp256k1')
-
-function magicHash (message, network) {
-  var magicPrefix = new Buffer(network.magicPrefix)
-  var messageBuffer = new Buffer(message)
-  var lengthBuffer = bufferutils.varIntBuffer(messageBuffer.length)
-
-  var buffer = Buffer.concat([magicPrefix, lengthBuffer, messageBuffer])
-  return crypto.hash256(buffer)
+SafeBuffer.allocUnsafeSlow = function (size) {
+  if (typeof size !== 'number') {
+    throw new TypeError('Argument must be a number')
+  }
+  return buffer.SlowBuffer(size)
 }
 
-function sign (privKey, message, network) {
-  network = network || networks.bitcoin
-
-  var hash = magicHash(message, network)
-  var signature = privKey.sign(hash)
-  var e = BigInteger.fromBuffer(hash)
-  var i = ecdsa.calcPubKeyRecoveryParam(ecparams, e, signature, privKey.pub.Q)
+},{"buffer":5}],129:[function(require,module,exports){
+var Buffer = require('safe-buffer').Buffer
 
-  return signature.toCompact(i, privKey.pub.compressed)
+// prototype class for hash functions
+function Hash (blockSize, finalSize) {
+  this._block = Buffer.alloc(blockSize)
+  this._finalSize = finalSize
+  this._blockSize = blockSize
+  this._len = 0
 }
 
-// TODO: network could be implied from address
-function verify (address, signature, message, network) {
-  if (!Buffer.isBuffer(signature)) {
-    signature = new Buffer(signature, 'base64')
+Hash.prototype.update = function (data, enc) {
+  if (typeof data === 'string') {
+    enc = enc || 'utf8'
+    data = Buffer.from(data, enc)
   }
 
-  network = network || networks.bitcoin
-
-  var hash = magicHash(message, network)
-  var parsed = ECSignature.parseCompact(signature)
-  var e = BigInteger.fromBuffer(hash)
-  var Q = ecdsa.recoverPubKey(ecparams, e, parsed.signature, parsed.i)
+  var block = this._block
+  var blockSize = this._blockSize
+  var length = data.length
+  var accum = this._len
 
-  var pubKey = new ECPubKey(Q, parsed.compressed)
-  return pubKey.getAddress(network).toString() === address.toString()
-}
+  for (var offset = 0; offset < length;) {
+    var assigned = accum % blockSize
+    var remainder = Math.min(length - offset, blockSize - assigned)
 
-module.exports = {
-  magicHash: magicHash,
-  sign: sign,
-  verify: verify
-}
+    for (var i = 0; i < remainder; i++) {
+      block[assigned + i] = data[offset + i]
+    }
 
-}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./ecdsa":59,"./ecpubkey":61,"./ecsignature":62,"./networks":66,"bigi":3,"buffer":7,"ecurve":49}],66:[function(require,module,exports){
-// https://en.bitcoin.it/wiki/List_of_address_prefixes
-// Dogecoin BIP32 is a proposed standard: https://bitcointalk.org/index.php?topic=409731
+    accum += remainder
+    offset += remainder
 
-var networks = {
-  bitcoin: {
-    magicPrefix: '\x18Bitcoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 0x00,
-    scriptHash: 0x05,
-    wif: 0x80,
-    dustThreshold: 546, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/core.h#L151-L162
-    feePerKb: 10000, // https://github.com/bitcoin/bitcoin/blob/v0.9.2/src/main.cpp#L53
-    estimateFee: estimateFee('bitcoin')
-  },
-  testnet: {
-    magicPrefix: '\x18Bitcoin Signed Message:\n',
-    bip32: {
-      public: 0x043587cf,
-      private: 0x04358394
-    },
-    pubKeyHash: 0x6f,
-    scriptHash: 0xc4,
-    wif: 0xef,
-    dustThreshold: 546,
-    feePerKb: 10000,
-    estimateFee: estimateFee('testnet')
-  },
-  litecoin: {
-    magicPrefix: '\x19Litecoin Signed Message:\n',
-    bip32: {
-      public: 0x019da462,
-      private: 0x019d9cfe
-    },
-    pubKeyHash: 0x30,
-    scriptHash: 0x05,
-    wif: 0xb0,
-    dustThreshold: 0, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L360-L365
-    dustSoftThreshold: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.h#L53
-    feePerKb: 100000, // https://github.com/litecoin-project/litecoin/blob/v0.8.7.2/src/main.cpp#L56
-    estimateFee: estimateFee('litecoin')
-  },
-  dogecoin: {
-    magicPrefix: '\x19Dogecoin Signed Message:\n',
-    bip32: {
-      public: 0x02facafd,
-      private: 0x02fac398
-    },
-    pubKeyHash: 0x1e,
-    scriptHash: 0x16,
-    wif: 0x9e,
-    dustThreshold: 0, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/core.h#L155-L160
-    dustSoftThreshold: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.h#L62
-    feePerKb: 100000000, // https://github.com/dogecoin/dogecoin/blob/v1.7.1/src/main.cpp#L58
-    estimateFee: estimateFee('dogecoin')
-  },
-  viacoin: {
-    magicPrefix: '\x18Viacoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 0x47,
-    scriptHash: 0x21,
-    wif: 0xc7,
-    dustThreshold: 560,
-    dustSoftThreshold: 100000,
-    feePerKb: 100000, //
-    estimateFee: estimateFee('viacoin')
-  },
-  viacointestnet: {
-    magicPrefix: '\x18Viacoin Signed Message:\n',
-    bip32: {
-      public: 0x043587cf,
-      private: 0x04358394
-    },
-    pubKeyHash: 0x7f,
-    scriptHash: 0xc4,
-    wif: 0xff,
-    dustThreshold: 560,
-    dustSoftThreshold: 100000,
-    feePerKb: 100000,
-    estimateFee: estimateFee('viacointestnet')
-  },
-  gamerscoin: {
-    magicPrefix: '\x19Gamerscoin Signed Message:\n',
-    bip32: {
-      public: 0x019da462,
-      private: 0x019d9cfe
-    },
-    pubKeyHash: 0x26,
-    scriptHash: 0x05,
-    wif: 0xA6,
-    dustThreshold: 0, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L358-L363
-    dustSoftThreshold: 100000, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L51
-    feePerKb: 100000, // https://github.com/gamers-coin/gamers-coinv3/blob/master/src/main.cpp#L54
-    estimateFee: estimateFee('gamerscoin')
-  },
-  jumbucks: {
-    magicPrefix: '\x19Jumbucks Signed Message:\n',
-    bip32: {
-      public: 0x037a689a,
-      private: 0x037a6460
-    },
-    pubKeyHash: 0x2b,
-    scriptHash: 0x05,
-    wif: 0xab,
-    dustThreshold: 0,
-    dustSoftThreshold: 10000,
-    feePerKb: 10000,
-    estimateFee: estimateFee('jumbucks')
-  },
-  zetacoin: {
-    magicPrefix: '\x18Zetacoin Signed Message:\n',
-    bip32: {
-      public: 0x0488b21e,
-      private: 0x0488ade4
-    },
-    pubKeyHash: 0x50,
-    scriptHash: 0x09,
-    wif: 0xe0,
-    dustThreshold: 546, // https://github.com/zetacoin/zetacoin/blob/master/src/core.h#L159
-    feePerKb: 10000, // https://github.com/zetacoin/zetacoin/blob/master/src/main.cpp#L54
-    estimateFee: estimateFee('zetacoin')
+    if ((accum % blockSize) === 0) {
+      this._update(block)
+    }
   }
+
+  this._len += length
+  return this
 }
 
-function estimateFee (type) {
-  return function (tx) {
-    var network = networks[type]
-    var baseFee = network.feePerKb
-    var byteSize = tx.toBuffer().length
+Hash.prototype.digest = function (enc) {
+  var rem = this._len % this._blockSize
 
-    var fee = baseFee * Math.ceil(byteSize / 1000)
-    if (network.dustSoftThreshold === undefined) return fee
+  this._block[rem] = 0x80
 
-    tx.outs.forEach(function (e) {
-      if (e.value < network.dustSoftThreshold) {
-        fee += baseFee
-      }
-    })
+  // zero (rem + 1) trailing bits, where (rem + 1) is the smallest
+  // non-negative solution to the equation (length + 1 + (rem + 1)) === finalSize mod blockSize
+  this._block.fill(0, rem + 1)
 
-    return fee
+  if (rem >= this._finalSize) {
+    this._update(this._block)
+    this._block.fill(0)
   }
-}
 
-module.exports = networks
-
-},{}],67:[function(require,module,exports){
-module.exports = {
-  // push value
-  OP_FALSE: 0,
-  OP_0: 0,
-  OP_PUSHDATA1: 76,
-  OP_PUSHDATA2: 77,
-  OP_PUSHDATA4: 78,
-  OP_1NEGATE: 79,
-  OP_RESERVED: 80,
-  OP_1: 81,
-  OP_TRUE: 81,
-  OP_2: 82,
-  OP_3: 83,
-  OP_4: 84,
-  OP_5: 85,
-  OP_6: 86,
-  OP_7: 87,
-  OP_8: 88,
-  OP_9: 89,
-  OP_10: 90,
-  OP_11: 91,
-  OP_12: 92,
-  OP_13: 93,
-  OP_14: 94,
-  OP_15: 95,
-  OP_16: 96,
-
-  // control
-  OP_NOP: 97,
-  OP_VER: 98,
-  OP_IF: 99,
-  OP_NOTIF: 100,
-  OP_VERIF: 101,
-  OP_VERNOTIF: 102,
-  OP_ELSE: 103,
-  OP_ENDIF: 104,
-  OP_VERIFY: 105,
-  OP_RETURN: 106,
-
-  // stack ops
-  OP_TOALTSTACK: 107,
-  OP_FROMALTSTACK: 108,
-  OP_2DROP: 109,
-  OP_2DUP: 110,
-  OP_3DUP: 111,
-  OP_2OVER: 112,
-  OP_2ROT: 113,
-  OP_2SWAP: 114,
-  OP_IFDUP: 115,
-  OP_DEPTH: 116,
-  OP_DROP: 117,
-  OP_DUP: 118,
-  OP_NIP: 119,
-  OP_OVER: 120,
-  OP_PICK: 121,
-  OP_ROLL: 122,
-  OP_ROT: 123,
-  OP_SWAP: 124,
-  OP_TUCK: 125,
-
-  // splice ops
-  OP_CAT: 126,
-  OP_SUBSTR: 127,
-  OP_LEFT: 128,
-  OP_RIGHT: 129,
-  OP_SIZE: 130,
-
-  // bit logic
-  OP_INVERT: 131,
-  OP_AND: 132,
-  OP_OR: 133,
-  OP_XOR: 134,
-  OP_EQUAL: 135,
-  OP_EQUALVERIFY: 136,
-  OP_RESERVED1: 137,
-  OP_RESERVED2: 138,
-
-  // numeric
-  OP_1ADD: 139,
-  OP_1SUB: 140,
-  OP_2MUL: 141,
-  OP_2DIV: 142,
-  OP_NEGATE: 143,
-  OP_ABS: 144,
-  OP_NOT: 145,
-  OP_0NOTEQUAL: 146,
-
-  OP_ADD: 147,
-  OP_SUB: 148,
-  OP_MUL: 149,
-  OP_DIV: 150,
-  OP_MOD: 151,
-  OP_LSHIFT: 152,
-  OP_RSHIFT: 153,
-
-  OP_BOOLAND: 154,
-  OP_BOOLOR: 155,
-  OP_NUMEQUAL: 156,
-  OP_NUMEQUALVERIFY: 157,
-  OP_NUMNOTEQUAL: 158,
-  OP_LESSTHAN: 159,
-  OP_GREATERTHAN: 160,
-  OP_LESSTHANOREQUAL: 161,
-  OP_GREATERTHANOREQUAL: 162,
-  OP_MIN: 163,
-  OP_MAX: 164,
-
-  OP_WITHIN: 165,
-
-  // crypto
-  OP_RIPEMD160: 166,
-  OP_SHA1: 167,
-  OP_SHA256: 168,
-  OP_HASH160: 169,
-  OP_HASH256: 170,
-  OP_CODESEPARATOR: 171,
-  OP_CHECKSIG: 172,
-  OP_CHECKSIGVERIFY: 173,
-  OP_CHECKMULTISIG: 174,
-  OP_CHECKMULTISIGVERIFY: 175,
-
-  // expansion
-  OP_NOP1: 176,
-  OP_NOP2: 177,
-  OP_NOP3: 178,
-  OP_NOP4: 179,
-  OP_NOP5: 180,
-  OP_NOP6: 181,
-  OP_NOP7: 182,
-  OP_NOP8: 183,
-  OP_NOP9: 184,
-  OP_NOP10: 185,
-
-  // template matching params
-  OP_PUBKEYHASH: 253,
-  OP_PUBKEY: 254,
-  OP_INVALIDOPCODE: 255
-}
-
-},{}],68:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var typeForce = require('typeforce')
-var opcodes = require('./opcodes')
+  var bits = this._len * 8
 
-function Script (buffer, chunks) {
-  typeForce('Buffer', buffer)
-  typeForce('Array', chunks)
+  // uint32
+  if (bits <= 0xffffffff) {
+    this._block.writeUInt32BE(bits, this._blockSize - 4)
 
-  this.buffer = buffer
-  this.chunks = chunks
-}
+  // uint64
+  } else {
+    var lowBits = bits & 0xffffffff
+    var highBits = (bits - lowBits) / 0x100000000
 
-Script.fromASM = function (asm) {
-  var strChunks = asm.split(' ')
-  var chunks = strChunks.map(function (strChunk) {
-    // opcode
-    if (strChunk in opcodes) {
-      return opcodes[strChunk]
+    this._block.writeUInt32BE(highBits, this._blockSize - 8)
+    this._block.writeUInt32BE(lowBits, this._blockSize - 4)
+  }
 
-    // data chunk
-    } else {
-      return new Buffer(strChunk, 'hex')
-    }
-  })
+  this._update(this._block)
+  var hash = this._hash()
 
-  return Script.fromChunks(chunks)
+  return enc ? hash.toString(enc) : hash
 }
 
-Script.fromBuffer = function (buffer) {
-  var chunks = []
-  var i = 0
-
-  while (i < buffer.length) {
-    var opcode = buffer.readUInt8(i)
+Hash.prototype._update = function () {
+  throw new Error('_update must be implemented by subclass')
+}
 
-    // data chunk
-    if ((opcode > opcodes.OP_0) && (opcode <= opcodes.OP_PUSHDATA4)) {
-      var d = bufferutils.readPushDataInt(buffer, i)
+module.exports = Hash
 
-      // did reading a pushDataInt fail? return non-chunked script
-      if (d === null) return new Script(buffer, [])
-      i += d.size
+},{"safe-buffer":128}],130:[function(require,module,exports){
+var exports = module.exports = function SHA (algorithm) {
+  algorithm = algorithm.toLowerCase()
 
-      // attempt to read too much data?
-      if (i + d.number > buffer.length) return new Script(buffer, [])
+  var Algorithm = exports[algorithm]
+  if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)')
 
-      var data = buffer.slice(i, i + d.number)
-      i += d.number
+  return new Algorithm()
+}
 
-      chunks.push(data)
+exports.sha = require('./sha')
+exports.sha1 = require('./sha1')
+exports.sha224 = require('./sha224')
+exports.sha256 = require('./sha256')
+exports.sha384 = require('./sha384')
+exports.sha512 = require('./sha512')
 
-    // opcode
-    } else {
-      chunks.push(opcode)
+},{"./sha":131,"./sha1":132,"./sha224":133,"./sha256":134,"./sha384":135,"./sha512":136}],131:[function(require,module,exports){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined
+ * in FIPS PUB 180-1
+ * This source code is derived from sha1.js of the same repository.
+ * The difference between SHA-0 and SHA-1 is just a bitwise rotate left
+ * operation was added.
+ */
 
-      i += 1
-    }
-  }
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  return new Script(buffer, chunks)
-}
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
 
-Script.fromChunks = function (chunks) {
-  typeForce('Array', chunks)
+var W = new Array(80)
 
-  var bufferSize = chunks.reduce(function (accum, chunk) {
-    // data chunk
-    if (Buffer.isBuffer(chunk)) {
-      return accum + bufferutils.pushDataSize(chunk.length) + chunk.length
-    }
+function Sha () {
+  this.init()
+  this._w = W
 
-    // opcode
-    return accum + 1
-  }, 0.0)
+  Hash.call(this, 64, 56)
+}
 
-  var buffer = new Buffer(bufferSize)
-  var offset = 0
+inherits(Sha, Hash)
 
-  chunks.forEach(function (chunk) {
-    // data chunk
-    if (Buffer.isBuffer(chunk)) {
-      offset += bufferutils.writePushDataInt(buffer, chunk.length, offset)
+Sha.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
 
-      chunk.copy(buffer, offset)
-      offset += chunk.length
+  return this
+}
 
-    // opcode
-    } else {
-      buffer.writeUInt8(chunk, offset)
-      offset += 1
-    }
-  })
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
+}
 
-  assert.equal(offset, buffer.length, 'Could not decode chunks')
-  return new Script(buffer, chunks)
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
 }
 
-Script.fromHex = function (hex) {
-  return Script.fromBuffer(new Buffer(hex, 'hex'))
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
 }
 
-Script.EMPTY = Script.fromChunks([])
+Sha.prototype._update = function (M) {
+  var W = this._w
 
-Script.prototype.getHash = function () {
-  return crypto.hash160(this.buffer)
-}
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
 
-// FIXME: doesn't work for data chunks, maybe time to use buffertools.compare...
-Script.prototype.without = function (needle) {
-  return Script.fromChunks(this.chunks.filter(function (op) {
-    return op !== needle
-  }))
-}
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]
 
-var reverseOps = []
-for (var op in opcodes) {
-  var code = opcodes[op]
-  reverseOps[code] = op
-}
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
 
-Script.prototype.toASM = function () {
-  return this.chunks.map(function (chunk) {
-    // data chunk
-    if (Buffer.isBuffer(chunk)) {
-      return chunk.toString('hex')
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
 
-    // opcode
-    } else {
-      return reverseOps[chunk]
-    }
-  }).join(' ')
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
 }
 
-Script.prototype.toBuffer = function () {
-  return this.buffer
-}
+Sha.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(20)
 
-Script.prototype.toHex = function () {
-  return this.toBuffer().toString('hex')
-}
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
 
-module.exports = Script
+  return H
+}
 
-}).call(this,require("buffer").Buffer)
-},{"./bufferutils":57,"./crypto":58,"./opcodes":67,"assert":5,"buffer":7,"typeforce":53}],69:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var ops = require('./opcodes')
-var typeForce = require('typeforce')
+module.exports = Sha
 
-var ecurve = require('ecurve')
-var curve = ecurve.getCurveByName('secp256k1')
+},{"./hash":129,"inherits":121,"safe-buffer":128}],132:[function(require,module,exports){
+/*
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
+ * in FIPS PUB 180-1
+ * Version 2.1a Copyright Paul Johnston 2000 - 2002.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ * Distributed under the BSD License
+ * See http://pajhome.org.uk/crypt/md5 for details.
+ */
 
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-function isCanonicalPubKey (buffer) {
-  if (!Buffer.isBuffer(buffer)) return false
+var K = [
+  0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0
+]
 
-  try {
-    ecurve.Point.decodeFrom(curve, buffer)
-  } catch (e) {
-    if (!(e.message.match(/Invalid sequence (length|tag)/)))
-      throw e
+var W = new Array(80)
 
-    return false
-  }
+function Sha1 () {
+  this.init()
+  this._w = W
 
-  return true
+  Hash.call(this, 64, 56)
 }
 
-function isCanonicalSignature (buffer) {
-  if (!Buffer.isBuffer(buffer)) return false
-
-  try {
-    ECSignature.parseScriptSignature(buffer)
-  } catch (e) {
-    if (!(e.message.match(/Not a DER sequence|Invalid sequence length|Expected a DER integer|R length is zero|S length is zero|R value excessively padded|S value excessively padded|R value is negative|S value is negative|Invalid hashType/))) {
-      throw e
-    }
+inherits(Sha1, Hash)
 
-    return false
-  }
+Sha1.prototype.init = function () {
+  this._a = 0x67452301
+  this._b = 0xefcdab89
+  this._c = 0x98badcfe
+  this._d = 0x10325476
+  this._e = 0xc3d2e1f0
 
-  return true
+  return this
 }
 
-function isPubKeyHashInput (script) {
-  return script.chunks.length === 2 &&
-    isCanonicalSignature(script.chunks[0]) &&
-    isCanonicalPubKey(script.chunks[1])
+function rotl1 (num) {
+  return (num << 1) | (num >>> 31)
 }
 
-function isPubKeyHashOutput (script) {
-  return script.chunks.length === 5 &&
-    script.chunks[0] === ops.OP_DUP &&
-    script.chunks[1] === ops.OP_HASH160 &&
-    Buffer.isBuffer(script.chunks[2]) &&
-    script.chunks[2].length === 20 &&
-    script.chunks[3] === ops.OP_EQUALVERIFY &&
-    script.chunks[4] === ops.OP_CHECKSIG
+function rotl5 (num) {
+  return (num << 5) | (num >>> 27)
 }
 
-function isPubKeyInput (script) {
-  return script.chunks.length === 1 &&
-    isCanonicalSignature(script.chunks[0])
+function rotl30 (num) {
+  return (num << 30) | (num >>> 2)
 }
 
-function isPubKeyOutput (script) {
-  return script.chunks.length === 2 &&
-    isCanonicalPubKey(script.chunks[0]) &&
-    script.chunks[1] === ops.OP_CHECKSIG
+function ft (s, b, c, d) {
+  if (s === 0) return (b & c) | ((~b) & d)
+  if (s === 2) return (b & c) | (b & d) | (c & d)
+  return b ^ c ^ d
 }
 
-function isScriptHashInput (script, allowIncomplete) {
-  if (script.chunks.length < 2) return false
+Sha1.prototype._update = function (M) {
+  var W = this._w
 
-  var lastChunk = script.chunks[script.chunks.length - 1]
-  if (!Buffer.isBuffer(lastChunk)) return false
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
 
-  var scriptSig = Script.fromChunks(script.chunks.slice(0, -1))
-  var redeemScript = Script.fromBuffer(lastChunk)
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16])
 
-  // is redeemScript a valid script?
-  if (redeemScript.chunks.length === 0) return false
+  for (var j = 0; j < 80; ++j) {
+    var s = ~~(j / 20)
+    var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0
 
-  return classifyInput(scriptSig, allowIncomplete) === classifyOutput(redeemScript)
-}
+    e = d
+    d = c
+    c = rotl30(b)
+    b = a
+    a = t
+  }
 
-function isScriptHashOutput (script) {
-  return script.chunks.length === 3 &&
-    script.chunks[0] === ops.OP_HASH160 &&
-    Buffer.isBuffer(script.chunks[1]) &&
-    script.chunks[1].length === 20 &&
-    script.chunks[2] === ops.OP_EQUAL
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
 }
 
-// allowIncomplete is to account for combining signatures
-// See https://github.com/bitcoin/bitcoin/blob/f425050546644a36b0b8e0eb2f6934a3e0f6f80f/src/script/sign.cpp#L195-L197
-function isMultisigInput (script, allowIncomplete) {
-  if (script.chunks.length < 2) return false
-  if (script.chunks[0] !== ops.OP_0) return false
+Sha1.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(20)
 
-  if (allowIncomplete) {
-    return script.chunks.slice(1).every(function (chunk) {
-      return chunk === ops.OP_0 || isCanonicalSignature(chunk)
-    })
-  }
+  H.writeInt32BE(this._a | 0, 0)
+  H.writeInt32BE(this._b | 0, 4)
+  H.writeInt32BE(this._c | 0, 8)
+  H.writeInt32BE(this._d | 0, 12)
+  H.writeInt32BE(this._e | 0, 16)
 
-  return script.chunks.slice(1).every(isCanonicalSignature)
+  return H
 }
 
-function isMultisigOutput (script) {
-  if (script.chunks.length < 4) return false
-  if (script.chunks[script.chunks.length - 1] !== ops.OP_CHECKMULTISIG) return false
+module.exports = Sha1
 
-  var mOp = script.chunks[0]
-  if (mOp === ops.OP_0) return false
-  if (mOp < ops.OP_1) return false
-  if (mOp > ops.OP_16) return false
+},{"./hash":129,"inherits":121,"safe-buffer":128}],133:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
 
-  var nOp = script.chunks[script.chunks.length - 2]
-  if (nOp === ops.OP_0) return false
-  if (nOp < ops.OP_1) return false
-  if (nOp > ops.OP_16) return false
+var inherits = require('inherits')
+var Sha256 = require('./sha256')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  var m = mOp - (ops.OP_1 - 1)
-  var n = nOp - (ops.OP_1 - 1)
-  if (n < m) return false
+var W = new Array(64)
 
-  var pubKeys = script.chunks.slice(1, -2)
-  if (n < pubKeys.length) return false
+function Sha224 () {
+  this.init()
 
-  return pubKeys.every(isCanonicalPubKey)
-}
+  this._w = W // new Array(64)
 
-function isNullDataOutput (script) {
-  return script.chunks[0] === ops.OP_RETURN
+  Hash.call(this, 64, 56)
 }
 
-function classifyOutput (script) {
-  typeForce('Script', script)
+inherits(Sha224, Sha256)
 
-  if (isPubKeyHashOutput(script)) {
-    return 'pubkeyhash'
-  } else if (isScriptHashOutput(script)) {
-    return 'scripthash'
-  } else if (isMultisigOutput(script)) {
-    return 'multisig'
-  } else if (isPubKeyOutput(script)) {
-    return 'pubkey'
-  } else if (isNullDataOutput(script)) {
-    return 'nulldata'
-  }
+Sha224.prototype.init = function () {
+  this._a = 0xc1059ed8
+  this._b = 0x367cd507
+  this._c = 0x3070dd17
+  this._d = 0xf70e5939
+  this._e = 0xffc00b31
+  this._f = 0x68581511
+  this._g = 0x64f98fa7
+  this._h = 0xbefa4fa4
 
-  return 'nonstandard'
+  return this
 }
 
-function classifyInput (script, allowIncomplete) {
-  typeForce('Script', script)
+Sha224.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(28)
 
-  if (isPubKeyHashInput(script)) {
-    return 'pubkeyhash'
-  } else if (isMultisigInput(script, allowIncomplete)) {
-    return 'multisig'
-  } else if (isScriptHashInput(script, allowIncomplete)) {
-    return 'scripthash'
-  } else if (isPubKeyInput(script)) {
-    return 'pubkey'
-  }
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
 
-  return 'nonstandard'
+  return H
 }
 
-// Standard Script Templates
-// {pubKey} OP_CHECKSIG
-function pubKeyOutput (pubKey) {
-  return Script.fromChunks([
-    pubKey.toBuffer(),
-    ops.OP_CHECKSIG
-  ])
-}
+module.exports = Sha224
 
-// OP_DUP OP_HASH160 {pubKeyHash} OP_EQUALVERIFY OP_CHECKSIG
-function pubKeyHashOutput (hash) {
-  typeForce('Buffer', hash)
-
-  return Script.fromChunks([
-    ops.OP_DUP,
-    ops.OP_HASH160,
-    hash,
-    ops.OP_EQUALVERIFY,
-    ops.OP_CHECKSIG
-  ])
-}
+},{"./hash":129,"./sha256":134,"inherits":121,"safe-buffer":128}],134:[function(require,module,exports){
+/**
+ * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined
+ * in FIPS 180-2
+ * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009.
+ * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
+ *
+ */
 
-// OP_HASH160 {scriptHash} OP_EQUAL
-function scriptHashOutput (hash) {
-  typeForce('Buffer', hash)
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  return Script.fromChunks([
-    ops.OP_HASH160,
-    hash,
-    ops.OP_EQUAL
-  ])
-}
+var K = [
+  0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
+  0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
+  0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
+  0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
+  0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
+  0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
+  0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
+  0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
+  0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
+  0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
+  0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
+  0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
+  0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
+  0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
+  0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
+  0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2
+]
 
-// m [pubKeys ...] n OP_CHECKMULTISIG
-function multisigOutput (m, pubKeys) {
-  typeForce(['ECPubKey'], pubKeys)
+var W = new Array(64)
 
-  assert(pubKeys.length >= m, 'Not enough pubKeys provided')
+function Sha256 () {
+  this.init()
 
-  var pubKeyBuffers = pubKeys.map(function (pubKey) {
-    return pubKey.toBuffer()
-  })
-  var n = pubKeys.length
+  this._w = W // new Array(64)
 
-  return Script.fromChunks([].concat(
-    (ops.OP_1 - 1) + m,
-    pubKeyBuffers,
-    (ops.OP_1 - 1) + n,
-    ops.OP_CHECKMULTISIG
-  ))
+  Hash.call(this, 64, 56)
 }
 
-// {signature}
-function pubKeyInput (signature) {
-  typeForce('Buffer', signature)
-
-  return Script.fromChunks([signature])
-}
+inherits(Sha256, Hash)
 
-// {signature} {pubKey}
-function pubKeyHashInput (signature, pubKey) {
-  typeForce('Buffer', signature)
+Sha256.prototype.init = function () {
+  this._a = 0x6a09e667
+  this._b = 0xbb67ae85
+  this._c = 0x3c6ef372
+  this._d = 0xa54ff53a
+  this._e = 0x510e527f
+  this._f = 0x9b05688c
+  this._g = 0x1f83d9ab
+  this._h = 0x5be0cd19
 
-  return Script.fromChunks([signature, pubKey.toBuffer()])
+  return this
 }
 
-// <scriptSig> {serialized scriptPubKey script}
-function scriptHashInput (scriptSig, scriptPubKey) {
-  return Script.fromChunks([].concat(
-    scriptSig.chunks,
-    scriptPubKey.toBuffer()
-  ))
+function ch (x, y, z) {
+  return z ^ (x & (y ^ z))
 }
 
-// OP_0 [signatures ...]
-function multisigInput (signatures, scriptPubKey) {
-  if (scriptPubKey) {
-    assert(isMultisigOutput(scriptPubKey))
-
-    var mOp = scriptPubKey.chunks[0]
-    var nOp = scriptPubKey.chunks[scriptPubKey.chunks.length - 2]
-    var m = mOp - (ops.OP_1 - 1)
-    var n = nOp - (ops.OP_1 - 1)
-
-    assert(signatures.length >= m, 'Not enough signatures provided')
-    assert(signatures.length <= n, 'Too many signatures provided')
-  }
-
-  return Script.fromChunks([].concat(ops.OP_0, signatures))
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
 }
 
-function nullDataOutput (data) {
-  return Script.fromChunks([ops.OP_RETURN, data])
+function sigma0 (x) {
+  return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10)
 }
 
-module.exports = {
-  isCanonicalPubKey: isCanonicalPubKey,
-  isCanonicalSignature: isCanonicalSignature,
-  isPubKeyHashInput: isPubKeyHashInput,
-  isPubKeyHashOutput: isPubKeyHashOutput,
-  isPubKeyInput: isPubKeyInput,
-  isPubKeyOutput: isPubKeyOutput,
-  isScriptHashInput: isScriptHashInput,
-  isScriptHashOutput: isScriptHashOutput,
-  isMultisigInput: isMultisigInput,
-  isMultisigOutput: isMultisigOutput,
-  isNullDataOutput: isNullDataOutput,
-  classifyOutput: classifyOutput,
-  classifyInput: classifyInput,
-  pubKeyOutput: pubKeyOutput,
-  pubKeyHashOutput: pubKeyHashOutput,
-  scriptHashOutput: scriptHashOutput,
-  multisigOutput: multisigOutput,
-  pubKeyInput: pubKeyInput,
-  pubKeyHashInput: pubKeyHashInput,
-  scriptHashInput: scriptHashInput,
-  multisigInput: multisigInput,
-  dataOutput: function (data) {
-    console.warn('dataOutput is deprecated, use nullDataOutput by 2.0.0')
-    return nullDataOutput(data)
-  },
-  nullDataOutput: nullDataOutput
+function sigma1 (x) {
+  return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7)
 }
 
-}).call(this,require("buffer").Buffer)
-},{"./ecsignature":62,"./opcodes":67,"./script":68,"assert":5,"buffer":7,"ecurve":49,"typeforce":53}],70:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var crypto = require('./crypto')
-var typeForce = require('typeforce')
-var opcodes = require('./opcodes')
-var scripts = require('./scripts')
-
-var Address = require('./address')
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
-
-function Transaction () {
-  this.version = 1
-  this.locktime = 0
-  this.ins = []
-  this.outs = []
+function gamma0 (x) {
+  return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3)
 }
 
-Transaction.DEFAULT_SEQUENCE = 0xffffffff
-Transaction.SIGHASH_ALL = 0x01
-Transaction.SIGHASH_NONE = 0x02
-Transaction.SIGHASH_SINGLE = 0x03
-Transaction.SIGHASH_ANYONECANPAY = 0x80
+function gamma1 (x) {
+  return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10)
+}
 
-Transaction.fromBuffer = function (buffer, __disableAssert) {
-  var offset = 0
-  function readSlice (n) {
-    offset += n
-    return buffer.slice(offset - n, offset)
-  }
+Sha256.prototype._update = function (M) {
+  var W = this._w
 
-  function readUInt32 () {
-    var i = buffer.readUInt32LE(offset)
-    offset += 4
-    return i
-  }
+  var a = this._a | 0
+  var b = this._b | 0
+  var c = this._c | 0
+  var d = this._d | 0
+  var e = this._e | 0
+  var f = this._f | 0
+  var g = this._g | 0
+  var h = this._h | 0
 
-  function readUInt64 () {
-    var i = bufferutils.readUInt64LE(buffer, offset)
-    offset += 8
-    return i
-  }
+  for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4)
+  for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0
 
-  function readVarInt () {
-    var vi = bufferutils.readVarInt(buffer, offset)
-    offset += vi.size
-    return vi.number
-  }
+  for (var j = 0; j < 64; ++j) {
+    var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0
+    var T2 = (sigma0(a) + maj(a, b, c)) | 0
 
-  function readScript () {
-    return Script.fromBuffer(readSlice(readVarInt()))
+    h = g
+    g = f
+    f = e
+    e = (d + T1) | 0
+    d = c
+    c = b
+    b = a
+    a = (T1 + T2) | 0
   }
 
-  function readGenerationScript () {
-    return new Script(readSlice(readVarInt()), [])
-  }
+  this._a = (a + this._a) | 0
+  this._b = (b + this._b) | 0
+  this._c = (c + this._c) | 0
+  this._d = (d + this._d) | 0
+  this._e = (e + this._e) | 0
+  this._f = (f + this._f) | 0
+  this._g = (g + this._g) | 0
+  this._h = (h + this._h) | 0
+}
 
-  var tx = new Transaction()
-  tx.version = readUInt32()
+Sha256.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(32)
 
-  var vinLen = readVarInt()
-  for (var i = 0; i < vinLen; ++i) {
-    var hash = readSlice(32)
-
-    if (Transaction.isCoinbaseHash(hash)) {
-      tx.ins.push({
-        hash: hash,
-        index: readUInt32(),
-        script: readGenerationScript(),
-        sequence: readUInt32()
-      })
-    } else {
-      tx.ins.push({
-        hash: hash,
-        index: readUInt32(),
-        script: readScript(),
-        sequence: readUInt32()
-      })
-    }
-  }
+  H.writeInt32BE(this._a, 0)
+  H.writeInt32BE(this._b, 4)
+  H.writeInt32BE(this._c, 8)
+  H.writeInt32BE(this._d, 12)
+  H.writeInt32BE(this._e, 16)
+  H.writeInt32BE(this._f, 20)
+  H.writeInt32BE(this._g, 24)
+  H.writeInt32BE(this._h, 28)
 
-  var voutLen = readVarInt()
-  for (i = 0; i < voutLen; ++i) {
-    tx.outs.push({
-      value: readUInt64(),
-      script: readScript()
-    })
-  }
+  return H
+}
 
-  tx.locktime = readUInt32()
+module.exports = Sha256
 
-  if (!__disableAssert) {
-    assert.equal(offset, buffer.length, 'Transaction has unexpected data')
-  }
+},{"./hash":129,"inherits":121,"safe-buffer":128}],135:[function(require,module,exports){
+var inherits = require('inherits')
+var SHA512 = require('./sha512')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  return tx
-}
+var W = new Array(160)
 
-Transaction.fromHex = function (hex) {
-  return Transaction.fromBuffer(new Buffer(hex, 'hex'))
-}
+function Sha384 () {
+  this.init()
+  this._w = W
 
-Transaction.isCoinbaseHash = function (buffer) {
-  return Array.prototype.every.call(buffer, function (x) {
-    return x === 0
-  })
+  Hash.call(this, 128, 112)
 }
 
-/**
- * Create a new txIn.
- *
- * Can be called with any of:
- *
- * - A transaction and an index
- * - A transaction hash and an index
- *
- * Note that this method does not sign the created input.
- */
-Transaction.prototype.addInput = function (hash, index, sequence, script) {
-  if (sequence === undefined || sequence === null) {
-    sequence = Transaction.DEFAULT_SEQUENCE
-  }
-
-  script = script || Script.EMPTY
-
-  if (typeof hash === 'string') {
-    // TxId hex is big-endian, we need little-endian
-    hash = bufferutils.reverse(new Buffer(hash, 'hex'))
-  } else if (hash instanceof Transaction) {
-    hash = hash.getHash()
-  }
+inherits(Sha384, SHA512)
 
-  typeForce('Buffer', hash)
-  typeForce('Number', index)
-  typeForce('Number', sequence)
-  typeForce('Script', script)
+Sha384.prototype.init = function () {
+  this._ah = 0xcbbb9d5d
+  this._bh = 0x629a292a
+  this._ch = 0x9159015a
+  this._dh = 0x152fecd8
+  this._eh = 0x67332667
+  this._fh = 0x8eb44a87
+  this._gh = 0xdb0c2e0d
+  this._hh = 0x47b5481d
 
-  assert.equal(hash.length, 32, 'Expected hash length of 32, got ' + hash.length)
+  this._al = 0xc1059ed8
+  this._bl = 0x367cd507
+  this._cl = 0x3070dd17
+  this._dl = 0xf70e5939
+  this._el = 0xffc00b31
+  this._fl = 0x68581511
+  this._gl = 0x64f98fa7
+  this._hl = 0xbefa4fa4
 
-  // Add the input and return the input's index
-  return (this.ins.push({
-    hash: hash,
-    index: index,
-    script: script,
-    sequence: sequence
-  }) - 1)
+  return this
 }
 
-/**
- * Create a new txOut.
- *
- * Can be called with:
- *
- * - A base58 address string and a value
- * - An Address object and a value
- * - A scriptPubKey Script and a value
- */
-Transaction.prototype.addOutput = function (scriptPubKey, value) {
-  // Attempt to get a valid address if it's a base58 address string
-  if (typeof scriptPubKey === 'string') {
-    scriptPubKey = Address.fromBase58Check(scriptPubKey)
-  }
+Sha384.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(48)
 
-  // Attempt to get a valid script if it's an Address object
-  if (scriptPubKey instanceof Address) {
-    scriptPubKey = scriptPubKey.toOutputScript()
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
   }
 
-  typeForce('Script', scriptPubKey)
-  typeForce('Number', value)
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
 
-  // Add the output and return the output's index
-  return (this.outs.push({
-    script: scriptPubKey,
-    value: value
-  }) - 1)
+  return H
 }
 
-Transaction.prototype.clone = function () {
-  var newTx = new Transaction()
-  newTx.version = this.version
-  newTx.locktime = this.locktime
-
-  newTx.ins = this.ins.map(function (txIn) {
-    return {
-      hash: txIn.hash,
-      index: txIn.index,
-      script: txIn.script,
-      sequence: txIn.sequence
-    }
-  })
+module.exports = Sha384
 
-  newTx.outs = this.outs.map(function (txOut) {
-    return {
-      script: txOut.script,
-      value: txOut.value
-    }
-  })
+},{"./hash":129,"./sha512":136,"inherits":121,"safe-buffer":128}],136:[function(require,module,exports){
+var inherits = require('inherits')
+var Hash = require('./hash')
+var Buffer = require('safe-buffer').Buffer
 
-  return newTx
-}
+var K = [
+  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
+  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
+  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
+  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
+  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
+  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
+  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
+  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
+  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
+  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
+  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
+  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
+  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
+  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
+  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
+  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
+  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
+  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
+  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
+  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
+  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
+  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
+  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
+  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
+  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
+  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
+  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
+  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
+  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
+  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
+  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
+  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
+  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
+  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
+  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
+  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
+  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
+  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
+  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
+  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
+]
 
-/**
- * Hash transaction for signing a specific input.
- *
- * Bitcoin uses a different hash for each signed transaction input. This
- * method copies the transaction, makes the necessary changes based on the
- * hashType, serializes and finally hashes the result. This hash can then be
- * used to sign the transaction input in question.
- */
-Transaction.prototype.hashForSignature = function (inIndex, prevOutScript, hashType) {
-  // FIXME: remove in 2.x.y
-  if (arguments[0] instanceof Script) {
-    console.warn('hashForSignature(prevOutScript, inIndex, ...) has been deprecated. Use hashForSignature(inIndex, prevOutScript, ...)')
+var W = new Array(160)
 
-    // swap the arguments (must be stored in tmp, arguments is special)
-    var tmp = arguments[0]
-    inIndex = arguments[1]
-    prevOutScript = tmp
-  }
+function Sha512 () {
+  this.init()
+  this._w = W
 
-  typeForce('Number', inIndex)
-  typeForce('Script', prevOutScript)
-  typeForce('Number', hashType)
+  Hash.call(this, 128, 112)
+}
 
-  assert(inIndex >= 0, 'Invalid vin index')
-  assert(inIndex < this.ins.length, 'Invalid vin index')
+inherits(Sha512, Hash)
 
-  var txTmp = this.clone()
-  var hashScript = prevOutScript.without(opcodes.OP_CODESEPARATOR)
+Sha512.prototype.init = function () {
+  this._ah = 0x6a09e667
+  this._bh = 0xbb67ae85
+  this._ch = 0x3c6ef372
+  this._dh = 0xa54ff53a
+  this._eh = 0x510e527f
+  this._fh = 0x9b05688c
+  this._gh = 0x1f83d9ab
+  this._hh = 0x5be0cd19
 
-  // Blank out other inputs' signatures
-  txTmp.ins.forEach(function (txIn) {
-    txIn.script = Script.EMPTY
-  })
-  txTmp.ins[inIndex].script = hashScript
+  this._al = 0xf3bcc908
+  this._bl = 0x84caa73b
+  this._cl = 0xfe94f82b
+  this._dl = 0x5f1d36f1
+  this._el = 0xade682d1
+  this._fl = 0x2b3e6c1f
+  this._gl = 0xfb41bd6b
+  this._hl = 0x137e2179
 
-  var hashTypeModifier = hashType & 0x1f
+  return this
+}
 
-  if (hashTypeModifier === Transaction.SIGHASH_NONE) {
-    assert(false, 'SIGHASH_NONE not yet supported')
-  } else if (hashTypeModifier === Transaction.SIGHASH_SINGLE) {
-    assert(false, 'SIGHASH_SINGLE not yet supported')
-  }
+function Ch (x, y, z) {
+  return z ^ (x & (y ^ z))
+}
 
-  if (hashType & Transaction.SIGHASH_ANYONECANPAY) {
-    assert(false, 'SIGHASH_ANYONECANPAY not yet supported')
-  }
+function maj (x, y, z) {
+  return (x & y) | (z & (x | y))
+}
 
-  var hashTypeBuffer = new Buffer(4)
-  hashTypeBuffer.writeInt32LE(hashType, 0)
+function sigma0 (x, xl) {
+  return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25)
+}
 
-  var buffer = Buffer.concat([txTmp.toBuffer(), hashTypeBuffer])
-  return crypto.hash256(buffer)
+function sigma1 (x, xl) {
+  return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23)
 }
 
-Transaction.prototype.getHash = function () {
-  return crypto.hash256(this.toBuffer())
+function Gamma0 (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7)
 }
 
-Transaction.prototype.getId = function () {
-  // TxHash is little-endian, we need big-endian
-  return bufferutils.reverse(this.getHash()).toString('hex')
+function Gamma0l (x, xl) {
+  return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25)
 }
 
-Transaction.prototype.toBuffer = function () {
-  function scriptSize (script) {
-    var length = script.buffer.length
+function Gamma1 (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6)
+}
 
-    return bufferutils.varIntSize(length) + length
-  }
+function Gamma1l (x, xl) {
+  return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26)
+}
 
-  var buffer = new Buffer(
-    8 +
-    bufferutils.varIntSize(this.ins.length) +
-    bufferutils.varIntSize(this.outs.length) +
-    this.ins.reduce(function (sum, input) { return sum + 40 + scriptSize(input.script) }, 0) +
-    this.outs.reduce(function (sum, output) { return sum + 8 + scriptSize(output.script) }, 0)
-  )
+function getCarry (a, b) {
+  return (a >>> 0) < (b >>> 0) ? 1 : 0
+}
 
-  var offset = 0
-  function writeSlice (slice) {
-    slice.copy(buffer, offset)
-    offset += slice.length
-  }
+Sha512.prototype._update = function (M) {
+  var W = this._w
 
-  function writeUInt32 (i) {
-    buffer.writeUInt32LE(i, offset)
-    offset += 4
-  }
+  var ah = this._ah | 0
+  var bh = this._bh | 0
+  var ch = this._ch | 0
+  var dh = this._dh | 0
+  var eh = this._eh | 0
+  var fh = this._fh | 0
+  var gh = this._gh | 0
+  var hh = this._hh | 0
 
-  function writeUInt64 (i) {
-    bufferutils.writeUInt64LE(buffer, i, offset)
-    offset += 8
-  }
+  var al = this._al | 0
+  var bl = this._bl | 0
+  var cl = this._cl | 0
+  var dl = this._dl | 0
+  var el = this._el | 0
+  var fl = this._fl | 0
+  var gl = this._gl | 0
+  var hl = this._hl | 0
 
-  function writeVarInt (i) {
-    var n = bufferutils.writeVarInt(buffer, i, offset)
-    offset += n
+  for (var i = 0; i < 32; i += 2) {
+    W[i] = M.readInt32BE(i * 4)
+    W[i + 1] = M.readInt32BE(i * 4 + 4)
   }
+  for (; i < 160; i += 2) {
+    var xh = W[i - 15 * 2]
+    var xl = W[i - 15 * 2 + 1]
+    var gamma0 = Gamma0(xh, xl)
+    var gamma0l = Gamma0l(xl, xh)
 
-  writeUInt32(this.version)
-  writeVarInt(this.ins.length)
+    xh = W[i - 2 * 2]
+    xl = W[i - 2 * 2 + 1]
+    var gamma1 = Gamma1(xh, xl)
+    var gamma1l = Gamma1l(xl, xh)
 
-  this.ins.forEach(function (txIn) {
-    writeSlice(txIn.hash)
-    writeUInt32(txIn.index)
-    writeVarInt(txIn.script.buffer.length)
-    writeSlice(txIn.script.buffer)
-    writeUInt32(txIn.sequence)
-  })
+    // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16]
+    var Wi7h = W[i - 7 * 2]
+    var Wi7l = W[i - 7 * 2 + 1]
 
-  writeVarInt(this.outs.length)
-  this.outs.forEach(function (txOut) {
-    writeUInt64(txOut.value)
-    writeVarInt(txOut.script.buffer.length)
-    writeSlice(txOut.script.buffer)
-  })
+    var Wi16h = W[i - 16 * 2]
+    var Wi16l = W[i - 16 * 2 + 1]
 
-  writeUInt32(this.locktime)
+    var Wil = (gamma0l + Wi7l) | 0
+    var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0
+    Wil = (Wil + gamma1l) | 0
+    Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0
+    Wil = (Wil + Wi16l) | 0
+    Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0
 
-  return buffer
-}
+    W[i] = Wih
+    W[i + 1] = Wil
+  }
 
-Transaction.prototype.toHex = function () {
-  return this.toBuffer().toString('hex')
-}
+  for (var j = 0; j < 160; j += 2) {
+    Wih = W[j]
+    Wil = W[j + 1]
 
-Transaction.prototype.setInputScript = function (index, script) {
-  typeForce('Number', index)
-  typeForce('Script', script)
+    var majh = maj(ah, bh, ch)
+    var majl = maj(al, bl, cl)
 
-  this.ins[index].script = script
-}
+    var sigma0h = sigma0(ah, al)
+    var sigma0l = sigma0(al, ah)
+    var sigma1h = sigma1(eh, el)
+    var sigma1l = sigma1(el, eh)
 
-// FIXME: remove in 2.x.y
-Transaction.prototype.sign = function (index, privKey, hashType) {
-  console.warn('Transaction.prototype.sign is deprecated.  Use TransactionBuilder instead.')
+    // t1 = h + sigma1 + ch + K[j] + W[j]
+    var Kih = K[j]
+    var Kil = K[j + 1]
 
-  var prevOutScript = privKey.pub.getAddress().toOutputScript()
-  var signature = this.signInput(index, prevOutScript, privKey, hashType)
+    var chh = Ch(eh, fh, gh)
+    var chl = Ch(el, fl, gl)
 
-  var scriptSig = scripts.pubKeyHashInput(signature, privKey.pub)
-  this.setInputScript(index, scriptSig)
-}
+    var t1l = (hl + sigma1l) | 0
+    var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0
+    t1l = (t1l + chl) | 0
+    t1h = (t1h + chh + getCarry(t1l, chl)) | 0
+    t1l = (t1l + Kil) | 0
+    t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0
+    t1l = (t1l + Wil) | 0
+    t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0
 
-// FIXME: remove in 2.x.y
-Transaction.prototype.signInput = function (index, prevOutScript, privKey, hashType) {
-  console.warn('Transaction.prototype.signInput is deprecated.  Use TransactionBuilder instead.')
+    // t2 = sigma0 + maj
+    var t2l = (sigma0l + majl) | 0
+    var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0
 
-  hashType = hashType || Transaction.SIGHASH_ALL
+    hh = gh
+    hl = gl
+    gh = fh
+    gl = fl
+    fh = eh
+    fl = el
+    el = (dl + t1l) | 0
+    eh = (dh + t1h + getCarry(el, dl)) | 0
+    dh = ch
+    dl = cl
+    ch = bh
+    cl = bl
+    bh = ah
+    bl = al
+    al = (t1l + t2l) | 0
+    ah = (t1h + t2h + getCarry(al, t1l)) | 0
+  }
 
-  var hash = this.hashForSignature(index, prevOutScript, hashType)
-  var signature = privKey.sign(hash)
+  this._al = (this._al + al) | 0
+  this._bl = (this._bl + bl) | 0
+  this._cl = (this._cl + cl) | 0
+  this._dl = (this._dl + dl) | 0
+  this._el = (this._el + el) | 0
+  this._fl = (this._fl + fl) | 0
+  this._gl = (this._gl + gl) | 0
+  this._hl = (this._hl + hl) | 0
 
-  return signature.toScriptSignature(hashType)
+  this._ah = (this._ah + ah + getCarry(this._al, al)) | 0
+  this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0
+  this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0
+  this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0
+  this._eh = (this._eh + eh + getCarry(this._el, el)) | 0
+  this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0
+  this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0
+  this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0
 }
 
-// FIXME: remove in 2.x.y
-Transaction.prototype.validateInput = function (index, prevOutScript, pubKey, buffer) {
-  console.warn('Transaction.prototype.validateInput is deprecated.  Use TransactionBuilder instead.')
-
-  var parsed = ECSignature.parseScriptSignature(buffer)
-  var hash = this.hashForSignature(index, prevOutScript, parsed.hashType)
+Sha512.prototype._hash = function () {
+  var H = Buffer.allocUnsafe(64)
 
-  return pubKey.verify(hash, parsed.signature)
-}
+  function writeInt64BE (h, l, offset) {
+    H.writeInt32BE(h, offset)
+    H.writeInt32BE(l, offset + 4)
+  }
 
-module.exports = Transaction
+  writeInt64BE(this._ah, this._al, 0)
+  writeInt64BE(this._bh, this._bl, 8)
+  writeInt64BE(this._ch, this._cl, 16)
+  writeInt64BE(this._dh, this._dl, 24)
+  writeInt64BE(this._eh, this._el, 32)
+  writeInt64BE(this._fh, this._fl, 40)
+  writeInt64BE(this._gh, this._gl, 48)
+  writeInt64BE(this._hh, this._hl, 56)
 
-}).call(this,require("buffer").Buffer)
-},{"./address":54,"./bufferutils":57,"./crypto":58,"./ecsignature":62,"./opcodes":67,"./script":68,"./scripts":69,"assert":5,"buffer":7,"typeforce":53}],71:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var ops = require('./opcodes')
-var scripts = require('./scripts')
+  return H
+}
 
-var ECPubKey = require('./ecpubkey')
-var ECSignature = require('./ecsignature')
-var Script = require('./script')
-var Transaction = require('./transaction')
+module.exports = Sha512
 
-function extractInput (txIn) {
-  var redeemScript
-  var scriptSig = txIn.script
-  var prevOutScript
-  var prevOutType = scripts.classifyInput(scriptSig, true)
-  var scriptType
+},{"./hash":129,"inherits":121,"safe-buffer":128}],137:[function(require,module,exports){
+var native = require('./native')
 
-  // Re-classify if scriptHash
-  if (prevOutType === 'scripthash') {
-    redeemScript = Script.fromBuffer(scriptSig.chunks.slice(-1)[0])
-    prevOutScript = scripts.scriptHashOutput(redeemScript.getHash())
+function getTypeName (fn) {
+  return fn.name || fn.toString().match(/function (.*?)\s*\(/)[1]
+}
 
-    scriptSig = Script.fromChunks(scriptSig.chunks.slice(0, -1))
-    scriptType = scripts.classifyInput(scriptSig, true)
-  } else {
-    scriptType = prevOutType
-  }
+function getValueTypeName (value) {
+  return native.Nil(value) ? '' : getTypeName(value.constructor)
+}
 
-  // Extract hashType, pubKeys and signatures
-  var hashType, parsed, pubKeys, signatures
+function getValue (value) {
+  if (native.Function(value)) return ''
+  if (native.String(value)) return JSON.stringify(value)
+  if (value && native.Object(value)) return ''
+  return value
+}
 
-  switch (scriptType) {
-    case 'pubkeyhash': {
-      parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
-      hashType = parsed.hashType
-      pubKeys = [ECPubKey.fromBuffer(scriptSig.chunks[1])]
-      signatures = [parsed.signature]
-      prevOutScript = pubKeys[0].getAddress().toOutputScript()
+function tfJSON (type) {
+  if (native.Function(type)) return type.toJSON ? type.toJSON() : getTypeName(type)
+  if (native.Array(type)) return 'Array'
+  if (type && native.Object(type)) return 'Object'
 
-      break
-    }
+  return type !== undefined ? type : ''
+}
 
-    case 'pubkey': {
-      parsed = ECSignature.parseScriptSignature(scriptSig.chunks[0])
-      hashType = parsed.hashType
-      signatures = [parsed.signature]
+function tfErrorString (type, value, valueTypeName) {
+  var valueJson = getValue(value)
 
-      if (redeemScript) {
-        pubKeys = [ECPubKey.fromBuffer(redeemScript.chunks[0])]
-      }
+  return 'Expected ' + tfJSON(type) + ', got' +
+    (valueTypeName !== '' ? ' ' + valueTypeName : '') +
+    (valueJson !== '' ? ' ' + valueJson : '')
+}
 
-      break
-    }
+function TfTypeError (type, value, valueTypeName) {
+  valueTypeName = valueTypeName || getValueTypeName(value)
+  this.message = tfErrorString(type, value, valueTypeName)
 
-    case 'multisig': {
-      signatures = scriptSig.chunks.slice(1).map(function (chunk) {
-        if (chunk === ops.OP_0) return chunk
+  Error.captureStackTrace(this, TfTypeError)
+  this.__type = type
+  this.__value = value
+  this.__valueTypeName = valueTypeName
+}
 
-        var parsed = ECSignature.parseScriptSignature(chunk)
-        hashType = parsed.hashType
+TfTypeError.prototype = Object.create(Error.prototype)
+TfTypeError.prototype.constructor = TfTypeError
 
-        return parsed.signature
-      })
+function tfPropertyErrorString (type, label, name, value, valueTypeName) {
+  var description = '" of type '
+  if (label === 'key') description = '" with key type '
 
-      if (redeemScript) {
-        pubKeys = redeemScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
-      }
+  return tfErrorString('property "' + tfJSON(name) + description + tfJSON(type), value, valueTypeName)
+}
 
-      break
-    }
+function TfPropertyTypeError (type, property, label, value, valueTypeName) {
+  if (type) {
+    valueTypeName = valueTypeName || getValueTypeName(value)
+    this.message = tfPropertyErrorString(type, label, property, value, valueTypeName)
+  } else {
+    this.message = 'Unexpected property "' + property + '"'
   }
 
-  return {
-    hashType: hashType,
-    prevOutScript: prevOutScript,
-    prevOutType: prevOutType,
-    pubKeys: pubKeys,
-    redeemScript: redeemScript,
-    scriptType: scriptType,
-    signatures: signatures
-  }
+  Error.captureStackTrace(this, TfTypeError)
+  this.__label = label
+  this.__property = property
+  this.__type = type
+  this.__value = value
+  this.__valueTypeName = valueTypeName
 }
 
-function TransactionBuilder () {
-  this.prevTxMap = {}
-  this.prevOutScripts = {}
-  this.prevOutTypes = {}
+TfPropertyTypeError.prototype = Object.create(Error.prototype)
+TfPropertyTypeError.prototype.constructor = TfTypeError
 
-  this.inputs = []
-  this.tx = new Transaction()
+function tfCustomError (expected, actual) {
+  return new TfTypeError(expected, {}, actual)
 }
 
-TransactionBuilder.fromTransaction = function (transaction) {
-  var txb = new TransactionBuilder()
+function tfSubError (e, property, label) {
+  // sub child?
+  if (e instanceof TfPropertyTypeError) {
+    property = property + '.' + e.__property
 
-  // Copy other transaction fields
-  txb.tx.version = transaction.version
-  txb.tx.locktime = transaction.locktime
-
-  // Extract/add inputs
-  transaction.ins.forEach(function (txIn) {
-    txb.addInput(txIn.hash, txIn.index, txIn.sequence)
-  })
+    e = new TfPropertyTypeError(
+      e.__type, property, e.__label, e.__value, e.__valueTypeName
+    )
 
-  // Extract/add outputs
-  transaction.outs.forEach(function (txOut) {
-    txb.addOutput(txOut.script, txOut.value)
-  })
+  // child?
+  } else if (e instanceof TfTypeError) {
+    e = new TfPropertyTypeError(
+      e.__type, property, label, e.__value, e.__valueTypeName
+    )
+  }
 
-  // Extract/add signatures
-  txb.inputs = transaction.ins.map(function (txIn) {
-    // TODO: remove me after testcase added
-    assert(!Transaction.isCoinbaseHash(txIn.hash), 'coinbase inputs not supported')
+  Error.captureStackTrace(e)
+  return e
+}
 
-    // Ignore empty scripts
-    if (txIn.script.buffer.length === 0) return {}
+module.exports = {
+  TfTypeError: TfTypeError,
+  TfPropertyTypeError: TfPropertyTypeError,
+  tfCustomError: tfCustomError,
+  tfSubError: tfSubError,
+  tfJSON: tfJSON,
+  getValueTypeName: getValueTypeName
+}
 
-    return extractInput(txIn)
-  })
+},{"./native":140}],138:[function(require,module,exports){
+(function (Buffer){
+var NATIVE = require('./native')
+var ERRORS = require('./errors')
 
-  return txb
+function _Buffer (value) {
+  return Buffer.isBuffer(value)
 }
 
-TransactionBuilder.prototype.addInput = function (prevTx, index, sequence, prevOutScript) {
-  var prevOutHash
-
-  // txId
-  if (typeof prevTx === 'string') {
-    prevOutHash = new Buffer(prevTx, 'hex')
+function Hex (value) {
+  return typeof value === 'string' && /^([0-9a-f]{2})+$/i.test(value)
+}
 
-    // TxId hex is big-endian, we want little-endian hash
-    Array.prototype.reverse.call(prevOutHash)
+function _LengthN (type, length) {
+  var name = type.toJSON()
 
-  // Transaction
-  } else if (prevTx instanceof Transaction) {
-    prevOutHash = prevTx.getHash()
-    prevOutScript = prevTx.outs[index].script
+  function Length (value) {
+    if (!type(value)) return false
+    if (value.length === length) return true
 
-  // txHash
-  } else {
-    prevOutHash = prevTx
+    throw ERRORS.tfCustomError(name + '(Length: ' + length + ')', name + '(Length: ' + value.length + ')')
   }
+  Length.toJSON = function () { return name }
 
-  var input = {}
-  if (prevOutScript) {
-    var prevOutType = scripts.classifyOutput(prevOutScript)
-
-    // if we can, extract pubKey information
-    switch (prevOutType) {
-      case 'multisig': {
-        input.pubKeys = prevOutScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
-        break
-      }
-
-      case 'pubkey': {
-        input.pubKeys = prevOutScript.chunks.slice(0, 1).map(ECPubKey.fromBuffer)
-        break
-      }
-    }
-
-    if (prevOutType !== 'scripthash') {
-      input.scriptType = prevOutType
-    }
-
-    input.prevOutScript = prevOutScript
-    input.prevOutType = prevOutType
-  }
+  return Length
+}
 
-  assert(this.inputs.every(function (input2) {
-    if (input2.hashType === undefined) return true
+var _ArrayN = _LengthN.bind(null, NATIVE.Array)
+var _BufferN = _LengthN.bind(null, _Buffer)
+var _HexN = _LengthN.bind(null, Hex)
+var _StringN = _LengthN.bind(null, NATIVE.String)
 
-    return input2.hashType & Transaction.SIGHASH_ANYONECANPAY
-  }), 'No, this would invalidate signatures')
+var UINT53_MAX = Math.pow(2, 53) - 1
 
-  var prevOut = prevOutHash.toString('hex') + ':' + index
-  assert(!(prevOut in this.prevTxMap), 'Transaction is already an input')
+function Finite (value) {
+  return typeof value === 'number' && isFinite(value)
+}
+function Int8 (value) { return ((value << 24) >> 24) === value }
+function Int16 (value) { return ((value << 16) >> 16) === value }
+function Int32 (value) { return (value | 0) === value }
+function UInt8 (value) { return (value & 0xff) === value }
+function UInt16 (value) { return (value & 0xffff) === value }
+function UInt32 (value) { return (value >>> 0) === value }
+function UInt53 (value) {
+  return typeof value === 'number' &&
+    value >= 0 &&
+    value <= UINT53_MAX &&
+    Math.floor(value) === value
+}
 
-  var vin = this.tx.addInput(prevOutHash, index, sequence)
-  this.inputs[vin] = input
-  this.prevTxMap[prevOut] = vin
+var types = {
+  ArrayN: _ArrayN,
+  Buffer: _Buffer,
+  BufferN: _BufferN,
+  Finite: Finite,
+  Hex: Hex,
+  HexN: _HexN,
+  Int8: Int8,
+  Int16: Int16,
+  Int32: Int32,
+  StringN: _StringN,
+  UInt8: UInt8,
+  UInt16: UInt16,
+  UInt32: UInt32,
+  UInt53: UInt53
+}
 
-  return vin
+for (var typeName in types) {
+  types[typeName].toJSON = function (t) {
+    return t
+  }.bind(null, typeName)
 }
 
-TransactionBuilder.prototype.addOutput = function (scriptPubKey, value) {
-  assert(this.inputs.every(function (input) {
-    if (input.hashType === undefined) return true
+module.exports = types
 
-    return (input.hashType & 0x1f) === Transaction.SIGHASH_SINGLE
-  }), 'No, this would invalidate signatures')
+}).call(this,{"isBuffer":require("../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js")})
+},{"../../../../../.nvm/versions/node/v6.0.0/lib/node_modules/browserify/node_modules/is-buffer/index.js":10,"./errors":137,"./native":140}],139:[function(require,module,exports){
+var ERRORS = require('./errors')
+var NATIVE = require('./native')
 
-  return this.tx.addOutput(scriptPubKey, value)
-}
+// short-hand
+var tfJSON = ERRORS.tfJSON
+var TfTypeError = ERRORS.TfTypeError
+var TfPropertyTypeError = ERRORS.TfPropertyTypeError
+var tfSubError = ERRORS.tfSubError
+var getValueTypeName = ERRORS.getValueTypeName
 
-TransactionBuilder.prototype.build = function () {
-  return this.__build(false)
-}
-TransactionBuilder.prototype.buildIncomplete = function () {
-  return this.__build(true)
-}
+var TYPES = {
+  arrayOf: function arrayOf (type) {
+    type = compile(type)
 
-var canSignTypes = {
-  'pubkeyhash': true,
-  'multisig': true,
-  'pubkey': true
-}
+    function _arrayOf (array, strict) {
+      if (!NATIVE.Array(array)) return false
+      if (NATIVE.Nil(array)) return false
 
-TransactionBuilder.prototype.__build = function (allowIncomplete) {
-  if (!allowIncomplete) {
-    assert(this.tx.ins.length > 0, 'Transaction has no inputs')
-    assert(this.tx.outs.length > 0, 'Transaction has no outputs')
-  }
+      return array.every(function (value, i) {
+        try {
+          return typeforce(type, value, strict)
+        } catch (e) {
+          throw tfSubError(e, i)
+        }
+      })
+    }
+    _arrayOf.toJSON = function () { return '[' + tfJSON(type) + ']' }
 
-  var tx = this.tx.clone()
+    return _arrayOf
+  },
 
-  // Create script signatures from signature meta-data
-  this.inputs.forEach(function (input, index) {
-    var scriptType = input.scriptType
-    var scriptSig
+  maybe: function maybe (type) {
+    type = compile(type)
 
-    if (!allowIncomplete) {
-      assert(!!scriptType, 'Transaction is not complete')
-      assert(scriptType in canSignTypes, scriptType + ' not supported')
-      assert(input.signatures, 'Transaction is missing signatures')
+    function _maybe (value, strict) {
+      return NATIVE.Nil(value) || type(value, strict, maybe)
     }
+    _maybe.toJSON = function () { return '?' + tfJSON(type) }
 
-    if (input.signatures) {
-      switch (scriptType) {
-        case 'pubkeyhash': {
-          var pkhSignature = input.signatures[0].toScriptSignature(input.hashType)
-          scriptSig = scripts.pubKeyHashInput(pkhSignature, input.pubKeys[0])
-          break
-        }
+    return _maybe
+  },
 
-        case 'multisig': {
-          // Array.prototype.map is sparse-compatible
-          var msSignatures = input.signatures.map(function (signature) {
-            return signature && signature.toScriptSignature(input.hashType)
-          })
+  map: function map (propertyType, propertyKeyType) {
+    propertyType = compile(propertyType)
+    if (propertyKeyType) propertyKeyType = compile(propertyKeyType)
 
-          // fill in blanks with OP_0
-          if (allowIncomplete) {
-            for (var i = 0; i < msSignatures.length; ++i) {
-              if (msSignatures[i]) continue
+    function _map (value, strict) {
+      if (!NATIVE.Object(value)) return false
+      if (NATIVE.Nil(value)) return false
 
-              msSignatures[i] = ops.OP_0
-            }
-          } else {
-            // Array.prototype.filter returns non-sparse array
-            msSignatures = msSignatures.filter(function (x) { return x })
+      for (var propertyName in value) {
+        try {
+          if (propertyKeyType) {
+            typeforce(propertyKeyType, propertyName, strict)
           }
-
-          var redeemScript = allowIncomplete ? undefined : input.redeemScript
-          scriptSig = scripts.multisigInput(msSignatures, redeemScript)
-          break
+        } catch (e) {
+          throw tfSubError(e, propertyName, 'key')
         }
 
-        case 'pubkey': {
-          var pkSignature = input.signatures[0].toScriptSignature(input.hashType)
-          scriptSig = scripts.pubKeyInput(pkSignature)
-          break
+        try {
+          var propertyValue = value[propertyName]
+          typeforce(propertyType, propertyValue, strict)
+        } catch (e) {
+          throw tfSubError(e, propertyName)
         }
       }
+
+      return true
     }
 
-    // did we build a scriptSig?
-    if (scriptSig) {
-      // wrap as scriptHash if necessary
-      if (input.prevOutType === 'scripthash') {
-        scriptSig = scripts.scriptHashInput(scriptSig, input.redeemScript)
+    if (propertyKeyType) {
+      _map.toJSON = function () {
+        return '{' + tfJSON(propertyKeyType) + ': ' + tfJSON(propertyType) + '}'
       }
-
-      tx.setInputScript(index, scriptSig)
+    } else {
+      _map.toJSON = function () { return '{' + tfJSON(propertyType) + '}' }
     }
-  })
-
-  return tx
-}
 
-TransactionBuilder.prototype.sign = function (index, privKey, redeemScript, hashType) {
-  assert(index in this.inputs, 'No input at index: ' + index)
-  hashType = hashType || Transaction.SIGHASH_ALL
+    return _map
+  },
 
-  var input = this.inputs[index]
-  var canSign = input.hashType &&
-    input.prevOutScript &&
-    input.prevOutType &&
-    input.pubKeys &&
-    input.scriptType &&
-    input.signatures
+  object: function object (uncompiled) {
+    var type = {}
 
-  // are we almost ready to sign?
-  if (canSign) {
-    // if redeemScript was provided, enforce consistency
-    if (redeemScript) {
-      assert.deepEqual(input.redeemScript, redeemScript, 'Inconsistent redeemScript')
+    for (var typePropertyName in uncompiled) {
+      type[typePropertyName] = compile(uncompiled[typePropertyName])
     }
 
-    assert.equal(input.hashType, hashType, 'Inconsistent hashType')
-
-  // no? prepare
-  } else {
-    // must be pay-to-scriptHash?
-    if (redeemScript) {
-      // if we have a prevOutScript, enforce scriptHash equality to the redeemScript
-      if (input.prevOutScript) {
-        assert.equal(input.prevOutType, 'scripthash', 'PrevOutScript must be P2SH')
+    function _object (value, strict) {
+      if (!NATIVE.Object(value)) return false
+      if (NATIVE.Nil(value)) return false
 
-        var scriptHash = input.prevOutScript.chunks[1]
-        assert.deepEqual(scriptHash, redeemScript.getHash(), 'RedeemScript does not match ' + scriptHash.toString('hex'))
-      }
+      var propertyName
 
-      var scriptType = scripts.classifyOutput(redeemScript)
-      assert(scriptType in canSignTypes, 'RedeemScript not supported (' + scriptType + ')')
+      try {
+        for (propertyName in type) {
+          var propertyType = type[propertyName]
+          var propertyValue = value[propertyName]
 
-      var pubKeys = []
-      switch (scriptType) {
-        case 'multisig': {
-          pubKeys = redeemScript.chunks.slice(1, -2).map(ECPubKey.fromBuffer)
-          break
+          typeforce(propertyType, propertyValue, strict)
         }
+      } catch (e) {
+        throw tfSubError(e, propertyName)
+      }
 
-        case 'pubkeyhash': {
-          var pkh1 = redeemScript.chunks[2]
-          var pkh2 = privKey.pub.getAddress().hash
-
-          assert.deepEqual(pkh1, pkh2, 'privateKey cannot sign for this input')
-          pubKeys = [privKey.pub]
-          break
-        }
+      if (strict) {
+        for (propertyName in value) {
+          if (type[propertyName]) continue
 
-        case 'pubkey': {
-          pubKeys = redeemScript.chunks.slice(0, 1).map(ECPubKey.fromBuffer)
-          break
+          throw new TfPropertyTypeError(undefined, propertyName)
         }
       }
 
-      if (!input.prevOutScript) {
-        input.prevOutScript = scripts.scriptHashOutput(redeemScript.getHash())
-        input.prevOutType = 'scripthash'
-      }
-
-      input.pubKeys = pubKeys
-      input.redeemScript = redeemScript
-      input.scriptType = scriptType
+      return true
+    }
+    _object.toJSON = function () { return tfJSON(type) }
 
-    // cannot be pay-to-scriptHash
-    } else {
-      assert.notEqual(input.prevOutType, 'scripthash', 'PrevOutScript is P2SH, missing redeemScript')
+    return _object
+  },
 
-      // can we otherwise sign this?
-      if (input.scriptType) {
-        assert(input.pubKeys, input.scriptType + ' not supported')
+  oneOf: function oneOf () {
+    var types = [].slice.call(arguments).map(compile)
 
-      // we know nothin' Jon Snow, assume pubKeyHash
-      } else {
-        input.prevOutScript = privKey.pub.getAddress().toOutputScript()
-        input.prevOutType = 'pubkeyhash'
-        input.pubKeys = [privKey.pub]
-        input.scriptType = input.prevOutType
-      }
+    function _oneOf (value, strict) {
+      return types.some(function (type) {
+        try {
+          return typeforce(type, value, strict)
+        } catch (e) {
+          return false
+        }
+      })
     }
+    _oneOf.toJSON = function () { return types.map(tfJSON).join('|') }
 
-    input.hashType = hashType
-    input.signatures = input.signatures || []
-  }
-
-  var signatureScript = input.redeemScript || input.prevOutScript
-  var signatureHash = this.tx.hashForSignature(index, signatureScript, hashType)
+    return _oneOf
+  },
 
-  // enforce signature order matches public keys
-  if (input.scriptType === 'multisig' && input.redeemScript && input.signatures.length !== input.pubKeys.length) {
-    // maintain a local copy of unmatched signatures
-    var unmatched = input.signatures.slice()
+  quacksLike: function quacksLike (type) {
+    function _quacksLike (value) {
+      return type === getValueTypeName(value)
+    }
+    _quacksLike.toJSON = function () { return type }
 
-    input.signatures = input.pubKeys.map(function (pubKey) {
-      var match
+    return _quacksLike
+  },
 
-      // check for any matching signatures
-      unmatched.some(function (signature, i) {
-        if (!pubKey.verify(signatureHash, signature)) return false
-        match = signature
+  tuple: function tuple () {
+    var types = [].slice.call(arguments).map(compile)
 
-        // remove matched signature from unmatched
-        unmatched.splice(i, 1)
+    function _tuple (values, strict) {
+      if (NATIVE.Nil(values)) return false
+      if (NATIVE.Nil(values.length)) return false
+      if (strict && (values.length !== types.length)) return false
 
-        return true
+      return types.every(function (type, i) {
+        try {
+          return typeforce(type, values[i], strict)
+        } catch (e) {
+          throw tfSubError(e, i)
+        }
       })
+    }
+    _tuple.toJSON = function () { return '(' + types.map(tfJSON).join(', ') + ')' }
 
-      return match || undefined
-    })
-  }
-
-  // enforce in order signing of public keys
-  assert(input.pubKeys.some(function (pubKey, i) {
-    if (!privKey.pub.Q.equals(pubKey.Q)) return false
+    return _tuple
+  },
 
-    assert(!input.signatures[i], 'Signature already exists')
-    var signature = privKey.sign(signatureHash)
-    input.signatures[i] = signature
+  value: function value (expected) {
+    function _value (actual) {
+      return actual === expected
+    }
+    _value.toJSON = function () { return expected }
 
-    return true
-  }, this), 'privateKey cannot sign for this input')
+    return _value
+  }
 }
 
-module.exports = TransactionBuilder
-
-}).call(this,require("buffer").Buffer)
-},{"./ecpubkey":61,"./ecsignature":62,"./opcodes":67,"./script":68,"./scripts":69,"./transaction":70,"assert":5,"buffer":7}],72:[function(require,module,exports){
-(function (Buffer){
-var assert = require('assert')
-var bufferutils = require('./bufferutils')
-var typeForce = require('typeforce')
-var networks = require('./networks')
-var randomBytes = require('randombytes')
-
-var Address = require('./address')
-var HDNode = require('./hdnode')
-var TransactionBuilder = require('./transaction_builder')
-var Script = require('./script')
-
-function Wallet (seed, network) {
-  console.warn('Wallet is deprecated and will be removed in 2.0.0, see #296')
-
-  seed = seed || randomBytes(32)
-  network = network || networks.bitcoin
-
-  // Stored in a closure to make accidental serialization less likely
-  var masterKey = HDNode.fromSeedBuffer(seed, network)
-
-  // HD first-level child derivation method should be hardened
-  // See https://bitcointalk.org/index.php?topic=405179.msg4415254#msg4415254
-  var accountZero = masterKey.deriveHardened(0)
-  var externalAccount = accountZero.derive(0)
-  var internalAccount = accountZero.derive(1)
-
-  this.addresses = []
-  this.changeAddresses = []
-  this.network = network
-  this.unspents = []
-
-  // FIXME: remove in 2.0.0
-  this.unspentMap = {}
+function compile (type) {
+  if (NATIVE.String(type)) {
+    if (type[0] === '?') return TYPES.maybe(type.slice(1))
 
-  // FIXME: remove in 2.0.0
-  var me = this
-  this.newMasterKey = function (seed) {
-    console.warn('newMasterKey is deprecated, please make a new Wallet instance instead')
+    return NATIVE[type] || TYPES.quacksLike(type)
+  } else if (type && NATIVE.Object(type)) {
+    if (NATIVE.Array(type)) return TYPES.arrayOf(type[0])
 
-    seed = seed || randomBytes(32)
-    masterKey = HDNode.fromSeedBuffer(seed, network)
-
-    accountZero = masterKey.deriveHardened(0)
-    externalAccount = accountZero.derive(0)
-    internalAccount = accountZero.derive(1)
-
-    me.addresses = []
-    me.changeAddresses = []
-
-    me.unspents = []
-    me.unspentMap = {}
+    return TYPES.object(type)
+  } else if (NATIVE.Function(type)) {
+    return type
   }
 
-  this.getMasterKey = function () {
-    return masterKey
-  }
-  this.getAccountZero = function () {
-    return accountZero
-  }
-  this.getExternalAccount = function () {
-    return externalAccount
-  }
-  this.getInternalAccount = function () {
-    return internalAccount
-  }
+  return TYPES.value(type)
 }
 
-Wallet.prototype.createTransaction = function (to, value, options) {
-  // FIXME: remove in 2.0.0
-  if (typeof options !== 'object') {
-    if (options !== undefined) {
-      console.warn('Non options object parameters are deprecated, use options object instead')
-
-      options = {
-        fixedFee: arguments[2],
-        changeAddress: arguments[3]
-      }
-    }
-  }
-
-  options = options || {}
-
-  assert(value > this.network.dustThreshold, value + ' must be above dust threshold (' + this.network.dustThreshold + ' Satoshis)')
-
-  var changeAddress = options.changeAddress
-  var fixedFee = options.fixedFee
-  var minConf = options.minConf === undefined ? 0 : options.minConf // FIXME: change minConf:1 by default in 2.0.0
-
-  // filter by minConf, then pending and sort by descending value
-  var unspents = this.unspents.filter(function (unspent) {
-    return unspent.confirmations >= minConf
-  }).filter(function (unspent) {
-    return !unspent.pending
-  }).sort(function (o1, o2) {
-    return o2.value - o1.value
-  })
-
-  var accum = 0
-  var addresses = []
-  var subTotal = value
-
-  var txb = new TransactionBuilder()
-  txb.addOutput(to, value)
-
-  for (var i = 0; i < unspents.length; ++i) {
-    var unspent = unspents[i]
-    addresses.push(unspent.address)
+function typeforce (type, value, strict, surrogate) {
+  if (NATIVE.Function(type)) {
+    if (type(value, strict)) return true
 
-    txb.addInput(unspent.txHash, unspent.index)
-
-    var fee = fixedFee === undefined ? estimatePaddedFee(txb.buildIncomplete(), this.network) : fixedFee
-
-    accum += unspent.value
-    subTotal = value + fee
-
-    if (accum >= subTotal) {
-      var change = accum - subTotal
-
-      if (change > this.network.dustThreshold) {
-        txb.addOutput(changeAddress || this.getChangeAddress(), change)
-      }
-
-      break
-    }
+    throw new TfTypeError(surrogate || type, value)
   }
 
-  assert(accum >= subTotal, 'Not enough funds (incl. fee): ' + accum + ' < ' + subTotal)
+  // JIT
+  return typeforce(compile(type), value, strict)
+}
 
-  return this.signWith(txb, addresses).build()
+// assign types to typeforce function
+for (var typeName in NATIVE) {
+  typeforce[typeName] = NATIVE[typeName]
 }
 
-// FIXME: remove in 2.0.0
-Wallet.prototype.processPendingTx = function (tx) {
-  this.__processTx(tx, true)
+for (typeName in TYPES) {
+  typeforce[typeName] = TYPES[typeName]
 }
 
-// FIXME: remove in 2.0.0
-Wallet.prototype.processConfirmedTx = function (tx) {
-  this.__processTx(tx, false)
+var EXTRA = require('./extra')
+for (typeName in EXTRA) {
+  typeforce[typeName] = EXTRA[typeName]
 }
 
-// FIXME: remove in 2.0.0
-Wallet.prototype.__processTx = function (tx, isPending) {
-  console.warn('processTransaction is considered harmful, see issue #260 for more information')
+// async wrapper
+function __async (type, value, strict, callback) {
+  // default to falsy strict if using shorthand overload
+  if (typeof strict === 'function') return __async(type, value, false, strict)
 
-  var txId = tx.getId()
-  var txHash = tx.getHash()
+  try {
+    typeforce(type, value, strict)
+  } catch (e) {
+    return callback(e)
+  }
 
-  tx.outs.forEach(function (txOut, i) {
-    var address
+  callback()
+}
 
-    try {
-      address = Address.fromOutputScript(txOut.script, this.network).toString()
-    } catch (e) {
-      if (!(e.message.match(/has no matching Address/)))
-        throw e
-    }
+typeforce.async = __async
+typeforce.compile = compile
+typeforce.TfTypeError = TfTypeError
+typeforce.TfPropertyTypeError = TfPropertyTypeError
 
-    var myAddresses = this.addresses.concat(this.changeAddresses)
-    if (myAddresses.indexOf(address) > -1) {
-      var lookup = txId + ':' + i
-      if (lookup in this.unspentMap) return
+module.exports = typeforce
 
-      // its unique, add it
-      var unspent = {
-        address: address,
-        confirmations: 0, // no way to determine this without more information
-        index: i,
-        txHash: txHash,
-        txId: txId,
-        value: txOut.value,
-        pending: isPending
-      }
+},{"./errors":137,"./extra":138,"./native":140}],140:[function(require,module,exports){
+var types = {
+  Array: function (value) { return value !== null && value !== undefined && value.constructor === Array },
+  Boolean: function (value) { return typeof value === 'boolean' },
+  Function: function (value) { return typeof value === 'function' },
+  Nil: function (value) { return value === undefined || value === null },
+  Number: function (value) { return typeof value === 'number' },
+  Object: function (value) { return typeof value === 'object' },
+  String: function (value) { return typeof value === 'string' },
+  '': function () { return true }
+}
 
-      this.unspentMap[lookup] = unspent
-      this.unspents.push(unspent)
-    }
-  }, this)
+// TODO: deprecate
+types.Null = types.Nil
 
-  tx.ins.forEach(function (txIn) {
-    // copy and convert to big-endian hex
-    var txInId = bufferutils.reverse(txIn.hash).toString('hex')
+for (var typeName in types) {
+  types[typeName].toJSON = function (t) {
+    return t
+  }.bind(null, typeName)
+}
 
-    var lookup = txInId + ':' + txIn.index
-    if (!(lookup in this.unspentMap)) return
+module.exports = types
 
-    var unspent = this.unspentMap[lookup]
+},{}],141:[function(require,module,exports){
+(function (Buffer){
+'use strict'
 
-    if (isPending) {
-      unspent.pending = true
-      unspent.spent = true
-    } else {
-      delete this.unspentMap[lookup]
+// Number.MAX_SAFE_INTEGER
+var MAX_SAFE_INTEGER = 9007199254740991
 
-      this.unspents = this.unspents.filter(function (unspent2) {
-        return unspent !== unspent2
-      })
-    }
-  }, this)
+function checkUInt53 (n) {
+  if (n < 0 || n > MAX_SAFE_INTEGER || n % 1 !== 0) throw new RangeError('value out of range')
 }
 
-Wallet.prototype.generateAddress = function () {
-  var k = this.addresses.length
-  var address = this.getExternalAccount().derive(k).getAddress()
-
-  this.addresses.push(address.toString())
+function encode (number, buffer, offset) {
+  checkUInt53(number)
 
-  return this.getReceiveAddress()
-}
+  if (!buffer) buffer = new Buffer(encodingLength(number))
+  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+  if (!offset) offset = 0
 
-Wallet.prototype.generateChangeAddress = function () {
-  var k = this.changeAddresses.length
-  var address = this.getInternalAccount().derive(k).getAddress()
+  // 8 bit
+  if (number < 0xfd) {
+    buffer.writeUInt8(number, offset)
+    encode.bytes = 1
 
-  this.changeAddresses.push(address.toString())
+  // 16 bit
+  } else if (number <= 0xffff) {
+    buffer.writeUInt8(0xfd, offset)
+    buffer.writeUInt16LE(number, offset + 1)
+    encode.bytes = 3
 
-  return this.getChangeAddress()
-}
+  // 32 bit
+  } else if (number <= 0xffffffff) {
+    buffer.writeUInt8(0xfe, offset)
+    buffer.writeUInt32LE(number, offset + 1)
+    encode.bytes = 5
 
-Wallet.prototype.getAddress = function () {
-  if (this.addresses.length === 0) {
-    this.generateAddress()
+  // 64 bit
+  } else {
+    buffer.writeUInt8(0xff, offset)
+    buffer.writeUInt32LE(number >>> 0, offset + 1)
+    buffer.writeUInt32LE((number / 0x100000000) | 0, offset + 5)
+    encode.bytes = 9
   }
 
-  return this.addresses[this.addresses.length - 1]
-}
-
-Wallet.prototype.getBalance = function (minConf) {
-  minConf = minConf || 0
-
-  return this.unspents.filter(function (unspent) {
-    return unspent.confirmations >= minConf
-
-      // FIXME: remove spent filter in 2.0.0
-  }).filter(function (unspent) {
-    return !unspent.spent
-  }).reduce(function (accum, unspent) {
-    return accum + unspent.value
-  }, 0)
+  return buffer
 }
 
-Wallet.prototype.getChangeAddress = function () {
-  if (this.changeAddresses.length === 0) {
-    this.generateChangeAddress()
-  }
+function decode (buffer, offset) {
+  if (!Buffer.isBuffer(buffer)) throw new TypeError('buffer must be a Buffer instance')
+  if (!offset) offset = 0
 
-  return this.changeAddresses[this.changeAddresses.length - 1]
-}
+  var first = buffer.readUInt8(offset)
 
-Wallet.prototype.getInternalPrivateKey = function (index) {
-  return this.getInternalAccount().derive(index).privKey
-}
+  // 8 bit
+  if (first < 0xfd) {
+    decode.bytes = 1
+    return first
 
-Wallet.prototype.getPrivateKey = function (index) {
-  return this.getExternalAccount().derive(index).privKey
-}
+  // 16 bit
+  } else if (first === 0xfd) {
+    decode.bytes = 3
+    return buffer.readUInt16LE(offset + 1)
 
-Wallet.prototype.getPrivateKeyForAddress = function (address) {
-  var index
+  // 32 bit
+  } else if (first === 0xfe) {
+    decode.bytes = 5
+    return buffer.readUInt32LE(offset + 1)
 
-  if ((index = this.addresses.indexOf(address)) > -1) {
-    return this.getPrivateKey(index)
-  }
+  // 64 bit
+  } else {
+    decode.bytes = 9
+    var lo = buffer.readUInt32LE(offset + 1)
+    var hi = buffer.readUInt32LE(offset + 5)
+    var number = hi * 0x0100000000 + lo
+    checkUInt53(number)
 
-  if ((index = this.changeAddresses.indexOf(address)) > -1) {
-    return this.getInternalPrivateKey(index)
+    return number
   }
-
-  assert(false, 'Unknown address. Make sure the address is from the keychain and has been generated')
 }
 
-Wallet.prototype.getUnspentOutputs = function (minConf) {
-  minConf = minConf || 0
-
-  return this.unspents.filter(function (unspent) {
-    return unspent.confirmations >= minConf
+function encodingLength (number) {
+  checkUInt53(number)
 
-      // FIXME: remove spent filter in 2.0.0
-  }).filter(function (unspent) {
-    return !unspent.spent
-  }).map(function (unspent) {
-    return {
-      address: unspent.address,
-      confirmations: unspent.confirmations,
-      index: unspent.index,
-      txId: unspent.txId,
-      value: unspent.value,
-
-      // FIXME: remove in 2.0.0
-      hash: unspent.txId,
-      pending: unspent.pending
-    }
-  })
+  return (
+    number < 0xfd ? 1
+  : number <= 0xffff ? 3
+  : number <= 0xffffffff ? 5
+  : 9
+  )
 }
 
-Wallet.prototype.setUnspentOutputs = function (unspents) {
-  this.unspentMap = {}
-  this.unspents = unspents.map(function (unspent) {
-    // FIXME: remove unspent.hash in 2.0.0
-    var txId = unspent.txId || unspent.hash
-    var index = unspent.index
-
-    // FIXME: remove in 2.0.0
-    if (unspent.hash !== undefined) {
-      console.warn('unspent.hash is deprecated, use unspent.txId instead')
-    }
-
-    // FIXME: remove in 2.0.0
-    if (index === undefined) {
-      console.warn('unspent.outputIndex is deprecated, use unspent.index instead')
-      index = unspent.outputIndex
-    }
+module.exports = { encode: encode, decode: decode, encodingLength: encodingLength }
 
-    typeForce('String', txId)
-    typeForce('Number', index)
-    typeForce('Number', unspent.value)
+}).call(this,require("buffer").Buffer)
+},{"buffer":5}],142:[function(require,module,exports){
+(function (Buffer){
+var bs58check = require('bs58check')
 
-    assert.equal(txId.length, 64, 'Expected valid txId, got ' + txId)
-    assert.doesNotThrow(function () {
-      Address.fromBase58Check(unspent.address)
-    }, 'Expected Base58 Address, got ' + unspent.address)
-    assert(isFinite(index), 'Expected finite index, got ' + index)
+function decodeRaw (buffer, version) {
+  // check version only if defined
+  if (version !== undefined && buffer[0] !== version) throw new Error('Invalid network version')
 
-    // FIXME: remove branch in 2.0.0
-    if (unspent.confirmations !== undefined) {
-      typeForce('Number', unspent.confirmations)
+  // uncompressed
+  if (buffer.length === 33) {
+    return {
+      version: buffer[0],
+      privateKey: buffer.slice(1, 33),
+      compressed: false
     }
+  }
 
-    var txHash = bufferutils.reverse(new Buffer(txId, 'hex'))
+  // invalid length
+  if (buffer.length !== 34) throw new Error('Invalid WIF length')
 
-    unspent = {
-      address: unspent.address,
-      confirmations: unspent.confirmations || 0,
-      index: index,
-      txHash: txHash,
-      txId: txId,
-      value: unspent.value,
+  // invalid compression flag
+  if (buffer[33] !== 0x01) throw new Error('Invalid compression flag')
 
-      // FIXME: remove in 2.0.0
-      pending: unspent.pending || false
-    }
+  return {
+    version: buffer[0],
+    privateKey: buffer.slice(1, 33),
+    compressed: true
+  }
+}
 
-    // FIXME: remove in 2.0.0
-    this.unspentMap[txId + ':' + index] = unspent
+function encodeRaw (version, privateKey, compressed) {
+  var result = new Buffer(compressed ? 34 : 33)
 
-    return unspent
-  }, this)
-}
+  result.writeUInt8(version, 0)
+  privateKey.copy(result, 1)
 
-Wallet.prototype.signWith = function (tx, addresses) {
-  addresses.forEach(function (address, i) {
-    var privKey = this.getPrivateKeyForAddress(address)
+  if (compressed) {
+    result[33] = 0x01
+  }
 
-    tx.sign(i, privKey)
-  }, this)
+  return result
+}
 
-  return tx
+function decode (string, version) {
+  return decodeRaw(bs58check.decode(string), version)
 }
 
-function estimatePaddedFee (tx, network) {
-  var tmpTx = tx.clone()
-  tmpTx.addOutput(Script.EMPTY, network.dustSoftThreshold || 0)
+function encode (version, privateKey, compressed) {
+  if (typeof version === 'number') return bs58check.encode(encodeRaw(version, privateKey, compressed))
 
-  return network.estimateFee(tmpTx)
+  return bs58check.encode(
+    encodeRaw(
+      version.version,
+      version.privateKey,
+      version.compressed
+    )
+  )
 }
 
-// FIXME: 1.0.0 shims, remove in 2.0.0
-Wallet.prototype.getReceiveAddress = Wallet.prototype.getAddress
-Wallet.prototype.createTx = Wallet.prototype.createTransaction
-
-module.exports = Wallet
+module.exports = {
+  decode: decode,
+  decodeRaw: decodeRaw,
+  encode: encode,
+  encodeRaw: encodeRaw
+}
 
 }).call(this,require("buffer").Buffer)
-},{"./address":54,"./bufferutils":57,"./hdnode":63,"./networks":66,"./script":68,"./transaction_builder":71,"assert":5,"buffer":7,"randombytes":52,"typeforce":53}]},{},[64])(64)
+},{"bs58check":85,"buffer":5}]},{},[34])(34)
 });</script>
-        <script>bitcoin.networks.shadow = {
-  magicPrefix: '\x19ShadowCash Signed Message:\n',
+        <script>bitcoinjs.bitcoin.networks.shadow = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0xEE80286A,
     private: 0xEE8031E8
   },
   pubKeyHash: 0x3f,
   scriptHash: 0x7d,
-  wif: 0xbf,
-  dustThreshold: 0,
-  feePerKb: 1000,
-  estimateFee: function() { return "unused in this app" },
+  wif: 0xbf
 };
 
-bitcoin.networks.shadowtn = {
-  magicPrefix: '\x19ShadowCash Signed Message:\n',
+bitcoinjs.bitcoin.networks.shadowtn = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x76C0FDFB,
     private: 0x76C1077A
   },
   pubKeyHash: 0x7f,
   scriptHash: 0xc4,
-  wif: 0xff,
-  dustThreshold: 0,
-  feePerKb: 1000,
-  estimateFee: function() { return "unused in this app" },
+  wif: 0xff
 };
 
-bitcoin.networks.clam = {
+bitcoinjs.bitcoin.networks.clam = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0xa8c26d64,
     private: 0xa8c17826
   },
   pubKeyHash: 0x89,
-  wif: 0x85,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0x85
 };
 
-bitcoin.networks.crown = {
+bitcoinjs.bitcoin.networks.crown = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x0488b21e,
     private: 0x0488ade4
   },
   pubKeyHash: 0x00,
   scriptHash: 0x05,
-  wif: 0x80,
+  wif: 0x80
 };
 
-bitcoin.networks.dash = {
+bitcoinjs.bitcoin.networks.dash = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x0488b21e,
     private: 0x0488ade4
   },
   pubKeyHash: 0x4c,
   scriptHash: 0x10,
-  wif: 0xcc,
+  wif: 0xcc
+};
+
+bitcoinjs.bitcoin.networks.maza = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x32,
+  scriptHash: 0x09,
+  wif: 0xe0
 };
 
-bitcoin.networks.dashtn = {
+bitcoinjs.bitcoin.networks.dashtn = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x043587cf,
     private: 0x04358394
   },
   pubKeyHash: 0x8c,
   scriptHash: 0x13,
-  wif: 0xef,
+  wif: 0xef
 };
 
-bitcoin.networks.game = {
+bitcoinjs.bitcoin.networks.game = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x0488b21e,
     private: 0x0488ade4
   },
   pubKeyHash: 0x26,
   scriptHash: 0x05,
-  wif: 0xa6,
+  wif: 0xa6
 };
 
-bitcoin.networks.namecoin = {
+bitcoinjs.bitcoin.networks.namecoin = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x0488b21e,
     private: 0x0488ade4
   },
   pubKeyHash: 0x34,
-  //scriptHash: 0x10,
-  wif: 0x80,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0x80
 };
 
-bitcoin.networks.peercoin = {
+bitcoinjs.bitcoin.networks.peercoin = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x0488b21e,
     private: 0x0488ade4
   },
   pubKeyHash: 0x37,
-  //scriptHash: 0x10,
-  wif: 0xb7,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0xb7
 };
 
-bitcoin.networks.slimcoin = {
+bitcoinjs.bitcoin.networks.slimcoin = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0xef6adf10,
     private: 0xef69ea80
   },
   pubKeyHash: 0x3f,
   scriptHash: 0x7d,
-  wif: 0x46,
+  wif: 0x46
 };
 
-bitcoin.networks.slimcointn = {
+bitcoinjs.bitcoin.networks.slimcointn = {
+  messagePrefix: 'unused',
   bip32: {
     public: 0x043587CF,
     private: 0x04358394
   },
   pubKeyHash: 0x6f,
   scriptHash: 0xc4,
-  wif: 0x57,
+  wif: 0x57
 };
 
+bitcoinjs.bitcoin.networks.dogecoin = {
+  messagePrefix: '\x19Dogecoin Signed Message:\n',
+  bip32: {
+    public: 0x02facafd,
+    private: 0x02fac398
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x16,
+  wif: 0x9e
+};
+
+bitcoinjs.bitcoin.networks.viacoin = {
+  messagePrefix: '\x18Viacoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x47,
+  scriptHash: 0x21,
+  wif: 0xc7
+};
+
+bitcoinjs.bitcoin.networks.viacointestnet = {
+  messagePrefix: '\x18Viacoin Signed Message:\n',
+  bip32: {
+    public: 0x043587cf,
+    private: 0x04358394
+  },
+  pubKeyHash: 0x7f,
+  scriptHash: 0xc4,
+  wif: 0xff
+};
+
+bitcoinjs.bitcoin.networks.gamerscoin = {
+  messagePrefix: '\x19Gamerscoin Signed Message:\n',
+  bip32: {
+    public: 0x019da462,
+    private: 0x019d9cfe
+  },
+  pubKeyHash: 0x26,
+  scriptHash: 0x05,
+  wif: 0xA6
+};
+
+bitcoinjs.bitcoin.networks.jumbucks = {
+  messagePrefix: '\x19Jumbucks Signed Message:\n',
+  bip32: {
+    public: 0x037a689a,
+    private: 0x037a6460
+  },
+  pubKeyHash: 0x2b,
+  scriptHash: 0x05,
+  wif: 0xab
+};
+
+bitcoinjs.bitcoin.networks.zetacoin = {
+  messagePrefix: '\x18Zetacoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x50,
+  scriptHash: 0x09,
+  wif: 0xe0
+};
+
+bitcoinjs.bitcoin.networks.myriadcoin = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x32,
+  scriptHash: 0x00, // TODO set this correctly
+  wif: 0xb2
+};
+
+
+bitcoinjs.bitcoin.networks.onixcoin = {
+    messagePrefix: 'unused',
+    bip32: {
+      public: 0x049d7cb2,
+      private: 0x049d7878
+    },
+    pubKeyHash: 0x4B,
+    scriptHash: 0x05,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.pivx = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x022d2533,
+    private: 0x0221312b
+  },
+  pubKeyHash: 0x1e,
+  scriptHash: 0x0d,
+  wif: 0xd4
+};
+
+bitcoinjs.bitcoin.networks.pivxtestnet = {
+  messagePrefix: 'unused',
+  bip32: {
+    public: 0x3a8061a0,
+    private: 0x3a805837
+  },
+  pubKeyHash: 0x8b,
+  scriptHash: 0x13,
+  wif: 0xef
+};
+
+bitcoinjs.bitcoin.networks.fujicoin = {
+  messagePrefix: '\x19FujiCoin Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x24,
+  scriptHash: 0x10,
+  wif: 0xa4
+};
+
+bitcoinjs.bitcoin.networks.nubits = {
+  messagePrefix: '\x18Nu Signed Message:\n',
+  bip32: {
+    public: 0x0488b21e,
+    private: 0x0488ade4
+  },
+  pubKeyHash: 0x19,
+  scriptHash: 0x1a,
+  wif: 0x96,
+};
+
+bitcoinjs.bitcoin.networks.bgold = {
+  messagePrefix: 'unused',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 38,
+    scriptHash: 23,
+    wif: 128
+};
+
+bitcoinjs.bitcoin.networks.bitcoinCashBitbpay = {
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 0x1c,
+    scriptHash: 0x28,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.monacoin = {
+    messagePrefix: '\x18Monacoin Signed Message:\n',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4
+    },
+    pubKeyHash: 0x32,
+    scriptHash: 0x37,
+    wif: 0xb0
+};
+
+bitcoinjs.bitcoin.networks.litecoinXprv = {
+    messagePrefix: '\x19Litecoin Signed Message:\n',
+    bip32: {
+      public: 0x0488b21e,
+      private: 0x0488ade4,
+    },
+    pubKeyHash: 0x30,
+    scriptHash: 0x32,
+    wif: 0xb0
+};
+
+bitcoinjs.bitcoin.networks.komodo = {
+  messagePrefix: '\x18Komodo Signed Message:\n',
+  bip32: {
+    public: 0x0488B21E,
+    private: 0x0488ADE4
+  },
+  pubKeyHash: 0x3c,
+  scriptHash: 0x55,
+  wif: 0xbc
+};
+</script>
+        <script>(function() {
+
+// p2wpkh
+
+bitcoinjs.bitcoin.networks.bitcoin.p2wpkh = {
+    baseNetwork: "bitcoin",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'bc',
+    bip32: {
+        public: 0x04b24746,
+        private: 0x04b2430c
+    },
+    pubKeyHash: 0x00,
+    scriptHash: 0x05,
+    wif: 0x80
+};
+
+// p2wpkh in p2sh
+
+bitcoinjs.bitcoin.networks.bitcoin.p2wpkhInP2sh = {
+    baseNetwork: "bitcoin",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'bc',
+    bip32: {
+        public: 0x049d7cb2,
+        private: 0x049d7878
+    },
+    pubKeyHash: 0x00,
+    scriptHash: 0x05,
+    wif: 0x80
+};
+
+bitcoinjs.bitcoin.networks.testnet.p2wpkhInP2sh = {
+    baseNetwork: "testnet",
+    messagePrefix: '\x18Bitcoin Signed Message:\n',
+    bech32: 'tb',
+    bip32: {
+        public: 0x044a5262,
+        private: 0x044a4e28
+    },
+    pubKeyHash: 0x6f,
+    scriptHash: 0xc4,
+    wif: 0xef
+};
+
+bitcoinjs.bitcoin.networks.litecoin.p2wpkhInP2sh = {
+    baseNetwork: "litecoin",
+    messagePrefix: '\x19Litecoin Signed Message:\n',
+    bip32: {
+        public: 0x01b26ef6,
+        private: 0x01b26792
+    },
+    pubKeyHash: 0x30,
+    scriptHash: 0x32,
+    wif: 0xb0
+};
+
+})();
 </script>
         <script>(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.ethUtil = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
 (function (global){
@@ -39815,255 +70965,6 @@ sjcl.hash.sha256.prototype = {
     h[7] = h[7]+h7 | 0;
   }
 };
-</script>
-        <script>// An extremely basic translation library
-//
-// Example usage:
-//
-// Set some html to be translated. Do this using the 'data-translate' attribute:
-//
-//   <div data-translate>Test</div>
-//   <div data-translate-html><em>keep em tag</em></div>
-//   <input data-translate-placeholder placeholder="Example placeholder">
-//   <span data-translate-title title="Example title"></span>
-//
-// Obtain all the phrases to be translated via js debug console:
-//
-//   Translate.phrasesAsJson();
-//
-// Use that template to translate the phrases into another language.
-// Leave the key the same. Change the value to the new language.
-//
-// Create a js file to load the new phrases. In this example for Spanish,
-// es.js will contain the following code:
-//
-//   Translate.loadForeignPhrases("es", {
-//       "Test": "Test in Spanish",
-//       "<em>keep em tag</em>": "<em>keep em tag in Spanish</em>",
-//       "Example placeholder": "Example placeholder in Spanish"
-//       "Example title": "Example title in Spanish"
-//   });
-//
-// In your UI put a listener for clicking on the Spanish button:
-//
-//   mySpanishButton.addEventListener("click", function() {
-//       Translate.setLanguage("es");
-//   });
-//   myEnglishButton.addEventListener("click", function() {
-//       Translate.setLanguage("en");
-//   });
-
-Translate = new (function() {
-
-    var defaultLanguage = "en";
-
-    var allPhrases = {};
-    allPhrases[defaultLanguage] = {};
-
-    // Node types
-
-    var text = {
-        selector: "[data-translate]",
-        getKey: function() {
-            return this.textContent.trim().replace(/\s+/g, " ");
-        },
-        setPhrase: function(p) {
-            this.textContent = p;
-        },
-    }
-
-    var html = {
-        selector: "[data-translate-html]",
-        getKey: function() {
-            return this.innerHTML.trim().replace(/\s+/g, " ");
-        },
-        setPhrase: function(p) {
-            this.innerHTML = p;
-        },
-    }
-
-    var placeholder = {
-        selector: "[data-translate-placeholder]",
-        getKey: function() {
-            return this.getAttribute("placeholder").trim().replace(/\s+/g, " ");
-        },
-        setPhrase: function(p) {
-            this.setAttribute("placeholder", p);
-        },
-    }
-
-    var title = {
-        selector: "[data-translate-title]",
-        getKey: function() {
-            return this.getAttribute("title").trim().replace(/\s+/g, " ");
-        },
-        setPhrase: function(p) {
-            this.setAttribute("title", p);
-        },
-    }
-
-    // Get elements to be translated
-    var allEls = getEls(text)
-        .concat(getEls(html))
-        .concat(getEls(placeholder))
-        .concat(getEls(title));
-
-    // Provides access to phrases from a non-default language.
-    // See phrases_en.js for example usage.
-    this.loadForeignPhrases = function(language, phrases) {
-        allPhrases[language] =  phrases;
-    }
-
-    // Displays a different language, eg "en" or "fr"
-    this.setLanguage = function(language) {
-        for (var i=0; i<allEls.length; i++) {
-            var el = allEls[i];
-            var key = el.key;
-            if (!(language in allPhrases)) {
-                console.log(language + " not in allPhrases");
-                return;
-            }
-            if (!(key in allPhrases[language])) {
-                console.log(language + " does not contain phrase: " + key);
-                return;
-            }
-            var phrase = allPhrases[language][key];
-            el.setPhrase(phrase);
-        }
-    }
-
-    // Converts the phrases to a key-pair json file.
-    // This is a good way to export phrases for use in translation tools.
-    this.phrasesAsJson = function(language) {
-        var keys = [];
-        for (var i=0; i<allEls.length; i++) {
-            var el = allEls[i];
-            var key = el.key;
-            keys.push(key);
-        }
-        keys.sort();
-        var output = {};
-        for (var i=0; i<keys.length; i++) {
-            var key = keys[i];
-            var translated = "";
-            if (language in allPhrases && key in allPhrases[language]) {
-                translated = allPhrases[language][key];
-            }
-            output[key] = translated;
-        }
-        return JSON.stringify(output, null, 2);
-    }
-
-    function getEls(nodeType) {
-        var nodes = document.querySelectorAll(nodeType.selector);
-        var els = [];
-        for (var i=0; i<nodes.length; i++) {
-            var node = nodes[i];
-            node.getKey = nodeType.getKey;
-            node.setPhrase = nodeType.setPhrase;
-            node.key = node.getKey();
-            allPhrases[defaultLanguage][node.key] = node.key;
-            els.push(node);
-        }
-        return els;
-    }
-
-})();
-</script>
-        <script>Translate.loadForeignPhrases("en",
-{
-  "<code>m/44'/0'/0'/0</code> generates public addresses": "<code>m/44'/0'/0'/0</code> generates public addresses",
-  "<code>m/44'/0'/0'/1</code> generates change addresses": "<code>m/44'/0'/0'/1</code> generates change addresses",
-  "<code>m/44'/0'/0'</code> generates extended keys for import / export": "<code>m/44'/0'/0'</code> generates extended keys for import / export",
-  "<code>m/44'/0'/1'</code> for the next account. Continue incrementing for more accounts (most use a single account).": "<code>m/44'/0'/1'</code> for the next account. Continue incrementing for more accounts (most use a single account).",
-  "Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards": "Accepts binary, base 6, 6-sided dice, base 10, hexadecimal, cards",
-  "Account": "Account",
-  "Address": "Address",
-  "Alternatively, download the file from the repository": "Alternatively, download the file from the repository",
-  "BIP32 Derivation Path": "BIP32 Derivation Path",
-  "BIP32 Extended Key": "BIP32 Extended Key",
-  "BIP32 Extended Key (addresses only)": "BIP32 Extended Key (addresses only)",
-  "BIP32 Root Key": "BIP32 Root Key",
-  "BIP39 Mnemonic": "BIP39 Mnemonic",
-  "BIP39 Passphrase (optional)": "BIP39 Passphrase (optional)",
-  "BIP39 Seed": "BIP39 Seed",
-  "Base 10": "Base 10",
-  "Base 6": "Base 6",
-  "Be careful - it can be easy to make mistakes if you don't know what you're doing.": "Be careful - it can be easy to make mistakes if you don't know what you're doing.",
-  "Binary": "Binary",
-  "Bitcoin Core": "Bitcoin Core",
-  "Bits Per Event": "Bits Per Event",
-  "Block Explorers": "Block Explorers",
-  "Can be used with": "Can be used with",
-  "Card": "Card",
-  "Coin": "Coin",
-  "Dice": "Dice",
-  "Do <strong>NOT</strong> use phrases from books, lyrics from songs, your birthday or steet address, keyboard mashing, or anything you <i>think</i> is random, because chances are overwhelming it isn't random enough for the needs of this tool.": "Do <strong>NOT</strong> use phrases from books, lyrics from songs, your birthday or steet address, keyboard mashing, or anything you <i>think</i> is random, because chances are overwhelming it isn't random enough for the needs of this tool.",
-  "Double-click that file to open it in a browser on any offline computer.": "Double-click that file to open it in a browser on any offline computer.",
-  "Entropy": "Entropy",
-  "Entropy Type": "Entropy Type",
-  "Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.": "Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.",
-  "Entropy values must be sourced from a <a href=\"https://en.wikipedia.org/wiki/Random_number_generation\" target=\"_blank\">strong source of randomness</a>.": "Entropy values must be sourced from a <a href=\"https://en.wikipedia.org/wiki/Random_number_generation\" target=\"_blank\">strong source of randomness</a>.",
-  "Event Count": "Event Count",
-  "External / Internal": "External / Internal",
-  "Filtered Entropy": "Filtered Entropy",
-  "For more info see the <a href=\"http://www.mycelium.com/\" target=\"_blank\">Mycelium Wallet homepage</a>": "For more info see the <a href=\"http://www.mycelium.com/\" target=\"_blank\">Mycelium Wallet homepage</a>",
-  "For more info see the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki\" target=\"_blank\">BIP39 spec</a>.": "For more info see the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki\" target=\"_blank\">BIP39 spec</a>.",
-  "For more info see the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki\" target=\"_blank\">BIP44 spec</a>.": "For more info see the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki\" target=\"_blank\">BIP44 spec</a>.",
-  "For more info see the <a href=\"https://github.com/bitcoin/bitcoin/pull/8035\" target=\"_blank\">Bitcoin Core BIP32 implementation</a>": "For more info see the <a href=\"https://github.com/bitcoin/bitcoin/pull/8035\" target=\"_blank\">Bitcoin Core BIP32 implementation</a>",
-  "For more info see the BIP32 spec": "For more info see the BIP32 spec",
-  "From entropy length (3 words per 32 bits)": "From entropy length (3 words per 32 bits)",
-  "Generate a random mnemonic, or enter your own below": "Generate a random mnemonic, or enter your own below",
-  "Get the source code from the repository": "Get the source code from the repository",
-  "Hex": "Hex",
-  "Hierarchical Deterministic Wallets": "Hierarchical Deterministic Wallets",
-  "If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work.": "If cryptographic randomness isn't available in your browser, this page will show a warning and the generate button will not work.",
-  "In that case you might choose to use your own source of entropy.": "In that case you might choose to use your own source of entropy.",
-  "In your browser, select file save-as, and save this page as a file.": "In your browser, select file save-as, and save this page as a file.",
-  "Libraries": "Libraries",
-  "Mnemonic Language": "Mnemonic Language",
-  "Mnemonic Length": "Mnemonic Length",
-  "Mnemonic code for generating deterministic keys": "Mnemonic code for generating deterministic keys",
-  "More info": "More info",
-  "Multi-Account Hierarchy for Deterministic Wallets": "Multi-Account Hierarchy for Deterministic Wallets",
-  "Mycelium Wallet": "Mycelium Wallet",
-  "Note these addreses are derived from the BIP32 Extended Key": "Note these addreses are derived from the BIP32 Extended Key",
-  "Offline Usage": "Offline Usage",
-  "Only enter the <code>xpub</code> extended key into block explorer search fields, never the <code>xprv</code> key.": "Only enter the <code>xpub</code> extended key into block explorer search fields, never the <code>xprv</code> key.",
-  "Path": "Path",
-  "Private Key": "Private Key",
-  "Private Keys": "Private Keys",
-  "Public Key": "Public Key",
-  "Purpose": "Purpose",
-  "Raw Binary": "Raw Binary",
-  "Read more": "Read more",
-  "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki\" target=\"_blank\">official BIP32 spec</a>": "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki\" target=\"_blank\">official BIP32 spec</a>",
-  "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki\">official BIP39 spec</a>": "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki\">official BIP39 spec</a>",
-  "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki\" target=\"_blank\">official BIP44 spec</a>": "Read more at the <a href=\"https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki\" target=\"_blank\">official BIP44 spec</a>",
-  "See the demo at <a href=\"http://bip32.org/\" target=\"_blank\">bip32.org</a>": "See the demo at <a href=\"http://bip32.org/\" target=\"_blank\">bip32.org</a>",
-  "Show": "Show",
-  "Show more rows": "Show more rows",
-  "Strength": "Strength",
-  "Supply my own source of entropy": "Supply my own source of entropy",
-  "The built in random generator can generally be trusted more than your own intuition about randomness.": "The built in random generator can generally be trusted more than your own intuition about randomness.",
-  "The random mnemonic generator on this page uses a <a href=\"https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues\" target=\"_blank\">cryptographically secure random number generator</a>.": "The random mnemonic generator on this page uses a <a href=\"https://developer.mozilla.org/en-US/docs/Web/API/RandomSource/getRandomValues\" target=\"_blank\">cryptographically secure random number generator</a>.",
-  "This means flipping a fair coin, rolling a fair dice, noise measurements etc.": "This means flipping a fair coin, rolling a fair dice, noise measurements etc.",
-  "This project is 100% open-source code": "This project is 100% open-source code",
-  "Toggle": "Toggle",
-  "Total Bits": "Total Bits",
-  "Use hardened addresses": "Use hardened addresses",
-  "Use path <code>m/0'/0'</code> with hardened addresses.": "Use path <code>m/0'/0'</code> with hardened addresses.",
-  "Use path <code>m/44'/0'/0'</code>.": "Use path <code>m/44'/0'/0'</code>.",
-  "Use private keys at <a href=\"https://web.archive.org/web/20150707020924/https://brainwallet.org/\" target=\"_blank\">brainwallet.org</a>.": "Use private keys at <a href=\"https://web.archive.org/web/20150707020924/https://brainwallet.org/\" target=\"_blank\">brainwallet.org</a>.",
-  "Valid entropy values include:": "Valid entropy values include:",
-  "Warning": "Warning",
-  "Word Count": "Word Count",
-  "You are not a good source of entropy.": "You are not a good source of entropy.",
-  "You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word is a checksum).": "You can enter an existing BIP39 mnemonic, or generate a new random one. Typing your own twelve words will probably not work how you expect, since the words require a particular structure (the last word is a checksum).",
-  "You can use this tool without having to be online.": "You can use this tool without having to be online.",
-  "words": "words"
-}
-);
 </script>
         <script>WORDLISTS = typeof WORDLISTS == "undefined" ? {} : WORDLISTS;
 WORDLISTS["english"] = [
@@ -43394,7 +74295,7 @@ var time_estimates;time_estimates={estimate_attack_times:function(e){var t,n,s,o
 
 },{}]},{},[4])(4)
 });
-//# sourceMappingURL=zxcvbn.js.map
+
 </script>
         <script>/*
  * Detects entropy from a string.
@@ -43750,7 +74651,7 @@ window.Entropy = new (function() {
     var seed = null;
     var bip32RootKey = null;
     var bip32ExtendedKey = null;
-    var network = bitcoin.networks.bitcoin;
+    var network = bitcoinjs.bitcoin.networks.bitcoin;
     var addressRowTemplate = $("#address-row-template");
 
     var showIndex = true;
@@ -43758,6 +74659,7 @@ window.Entropy = new (function() {
     var showPubKey = true;
     var showPrivKey = true;
     var showQr = false;
+    var litecoinUseLtub = true;
 
     var entropyChangeTimeoutEvent = null;
     var phraseChangeTimeoutEvent = null;
@@ -43780,19 +74682,27 @@ window.Entropy = new (function() {
     DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
     DOM.entropyWordCount = DOM.entropyContainer.find(".word-count");
     DOM.entropyBinary = DOM.entropyContainer.find(".binary");
+    DOM.entropyWordIndexes = DOM.entropyContainer.find(".word-indexes");
     DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
+    DOM.entropyFilterWarning = DOM.entropyContainer.find(".filter-warning");
     DOM.phrase = $(".phrase");
     DOM.passphrase = $(".passphrase");
     DOM.generateContainer = $(".generate-container");
     DOM.generate = $(".generate");
     DOM.seed = $(".seed");
     DOM.rootKey = $(".root-key");
+    DOM.litecoinLtubContainer = $(".litecoin-ltub-container");
+    DOM.litecoinUseLtub = $(".litecoin-use-ltub");
     DOM.extendedPrivKey = $(".extended-priv-key");
     DOM.extendedPubKey = $(".extended-pub-key");
     DOM.bip32tab = $("#bip32-tab");
     DOM.bip44tab = $("#bip44-tab");
+    DOM.bip49tab = $("#bip49-tab");
+    DOM.bip84tab = $("#bip84-tab");
+    DOM.bip141tab = $("#bip141-tab");
     DOM.bip32panel = $("#bip32");
     DOM.bip44panel = $("#bip44");
+    DOM.bip49panel = $("#bip49");
     DOM.bip32path = $("#bip32-path");
     DOM.bip44path = $("#bip44-path");
     DOM.bip44purpose = $("#bip44 .purpose");
@@ -43801,11 +74711,36 @@ window.Entropy = new (function() {
     DOM.bip44accountXprv = $("#bip44 .account-xprv");
     DOM.bip44accountXpub = $("#bip44 .account-xpub");
     DOM.bip44change = $("#bip44 .change");
+    DOM.bip49unavailable = $("#bip49 .unavailable");
+    DOM.bip49available = $("#bip49 .available");
+    DOM.bip49path = $("#bip49-path");
+    DOM.bip49purpose = $("#bip49 .purpose");
+    DOM.bip49coin = $("#bip49 .coin");
+    DOM.bip49account = $("#bip49 .account");
+    DOM.bip49accountXprv = $("#bip49 .account-xprv");
+    DOM.bip49accountXpub = $("#bip49 .account-xpub");
+    DOM.bip49change = $("#bip49 .change");
+    DOM.bip84path = $("#bip84-path");
+    DOM.bip84purpose = $("#bip84 .purpose");
+    DOM.bip84coin = $("#bip84 .coin");
+    DOM.bip84account = $("#bip84 .account");
+    DOM.bip84accountXprv = $("#bip84 .account-xprv");
+    DOM.bip84accountXpub = $("#bip84 .account-xpub");
+    DOM.bip84change = $("#bip84 .change");
+    DOM.bip141unavailable = $("#bip141 .unavailable");
+    DOM.bip141available = $("#bip141 .available");
+    DOM.bip141path = $("#bip141-path");
+    DOM.bip141semantics = $(".bip141-semantics");
     DOM.generatedStrength = $(".generate-container .strength");
     DOM.hardenedAddresses = $(".hardened-addresses");
+    DOM.useBitpayAddressesContainer = $(".use-bitpay-addresses-container");
+    DOM.useBitpayAddresses = $(".use-bitpay-addresses");
     DOM.addresses = $(".addresses");
+    DOM.csvTab = $("#csv-tab a");
+    DOM.csv = $(".csv");
     DOM.rowsToAdd = $(".rows-to-add");
     DOM.more = $(".more");
+    DOM.moreRowsStartIndex = $(".more-rows-start-index");
     DOM.feedback = $(".feedback");
     DOM.tab = $(".derivation-type a");
     DOM.indexToggle = $(".index-toggle");
@@ -43831,18 +74766,25 @@ window.Entropy = new (function() {
         DOM.generate.on("click", generateClicked);
         DOM.more.on("click", showMore);
         DOM.rootKey.on("input", delayedRootKeyChanged);
+        DOM.litecoinUseLtub.on("change", litecoinUseLtubChanged);
         DOM.bip32path.on("input", calcForDerivationPath);
-        DOM.bip44purpose.on("input", calcForDerivationPath);
-        DOM.bip44coin.on("input", calcForDerivationPath);
         DOM.bip44account.on("input", calcForDerivationPath);
         DOM.bip44change.on("input", calcForDerivationPath);
-        DOM.tab.on("shown.bs.tab", calcForDerivationPath);
+        DOM.bip49account.on("input", calcForDerivationPath);
+        DOM.bip49change.on("input", calcForDerivationPath);
+        DOM.bip84account.on("input", calcForDerivationPath);
+        DOM.bip84change.on("input", calcForDerivationPath);
+        DOM.bip141path.on("input", calcForDerivationPath);
+        DOM.bip141semantics.on("change", tabChanged);
+        DOM.tab.on("shown.bs.tab", tabChanged);
         DOM.hardenedAddresses.on("change", calcForDerivationPath);
         DOM.indexToggle.on("click", toggleIndexes);
         DOM.addressToggle.on("click", toggleAddresses);
         DOM.publicKeyToggle.on("click", togglePublicKeys);
         DOM.privateKeyToggle.on("click", togglePrivateKeys);
+        DOM.csvTab.on("click", updateCsv);
         DOM.languages.on("click", languageChanged);
+        DOM.useBitpayAddresses.on("change", useBitpayAddressesChange);
         setQrEvents(DOM.showQrEls);
         disableForms();
         hidePending();
@@ -43854,8 +74796,20 @@ window.Entropy = new (function() {
     // Event handlers
 
     function networkChanged(e) {
+        clearDerivedKeys();
+        clearAddressesList();
+        DOM.litecoinLtubContainer.addClass("hidden");
+        DOM.useBitpayAddressesContainer.addClass("hidden");
         var networkIndex = e.target.value;
-        networks[networkIndex].onSelect();
+        var network = networks[networkIndex];
+        network.onSelect();
+        if (network.segwitAvailable) {
+            adjustNetworkForSegwit();
+            showSegwitAvailable();
+        }
+        else {
+            showSegwitUnavailable();
+        }
         if (seed != null) {
             phraseChanged();
         }
@@ -43899,6 +74853,10 @@ window.Entropy = new (function() {
 
     function delayedPhraseChanged() {
         hideValidationError();
+        seed = null;
+        bip32RootKey = null;
+        bip32ExtendedKey = null;
+        clearAddressesList();
         showPending();
         if (phraseChangeTimeoutEvent != null) {
             clearTimeout(phraseChangeTimeoutEvent);
@@ -43908,7 +74866,6 @@ window.Entropy = new (function() {
 
     function phraseChanged() {
         showPending();
-        hideValidationError();
         setMnemonicLanguage();
         // Get the mnemonic phrase
         var phrase = DOM.phrase.val();
@@ -43921,7 +74878,37 @@ window.Entropy = new (function() {
         var passphrase = DOM.passphrase.val();
         calcBip32RootKeyFromSeed(phrase, passphrase);
         calcForDerivationPath();
-        hidePending();
+        // Show the word indexes
+        showWordIndexes();
+    }
+
+    function tabChanged() {
+        showPending();
+        adjustNetworkForSegwit();
+        var phrase = DOM.phrase.val();
+        if (phrase != "") {
+            // Calculate and display for mnemonic
+            var errorText = findPhraseErrors(phrase);
+            if (errorText) {
+                showValidationError(errorText);
+                return;
+            }
+            // Calculate and display
+            var passphrase = DOM.passphrase.val();
+            calcBip32RootKeyFromSeed(phrase, passphrase);
+        }
+        else {
+            // Calculate and display for root key
+            var rootKeyBase58 = DOM.rootKey.val();
+            var errorText = validateRootKey(rootKeyBase58);
+            if (errorText) {
+                showValidationError(errorText);
+                return;
+            }
+            // Calculate and display
+            calcBip32RootKeyFromBase58(rootKeyBase58);
+        }
+        calcForDerivationPath();
     }
 
     function delayedEntropyChanged() {
@@ -43984,7 +74971,6 @@ window.Entropy = new (function() {
     function rootKeyChanged() {
         showPending();
         hideValidationError();
-        // Validate the root key TODO
         var rootKeyBase58 = DOM.rootKey.val();
         var errorText = validateRootKey(rootKeyBase58);
         if (errorText) {
@@ -43996,10 +74982,25 @@ window.Entropy = new (function() {
         calcForDerivationPath();
     }
 
+    function litecoinUseLtubChanged() {
+        litecoinUseLtub = DOM.litecoinUseLtub.prop("checked");
+        if (litecoinUseLtub) {
+            network = bitcoinjs.bitcoin.networks.litecoin;
+        }
+        else {
+            network = bitcoinjs.bitcoin.networks.litecoinXprv;
+        }
+        phraseChanged();
+    }
+
     function calcForDerivationPath() {
-        showPending();
+        clearDerivedKeys();
         clearAddressesList();
-        hideValidationError();
+        showPending();
+        // Don't show segwit if it's selected but network doesn't support it
+        if (segwitSelected() && !networkHasSegwit()) {
+            return;
+        }
         // Get the derivation path
         var derivationPath = getDerivationPath();
         var errorText = findDerivationPathErrors(derivationPath);
@@ -44011,8 +75012,13 @@ window.Entropy = new (function() {
         if (bip44TabSelected()) {
             displayBip44Info();
         }
+        else if (bip49TabSelected()) {
+            displayBip49Info();
+        }
+        else if (bip84TabSelected()) {
+            displayBip84Info();
+        }
         displayBip32Info();
-        hidePending();
     }
 
     function generateClicked() {
@@ -44045,6 +75051,11 @@ window.Entropy = new (function() {
         }, 50);
     }
 
+    function useBitpayAddressesChange() {
+        setBitcoinCashNetworkValues();
+        phraseChanged();
+    }
+
     function toggleIndexes() {
         showIndex = !showIndex;
         $("td.index span").toggleClass("invisible");
@@ -44073,20 +75084,30 @@ window.Entropy = new (function() {
             showValidationError(errorText);
             return;
         }
+        // get the amount of entropy to use
         var numWords = parseInt(DOM.generatedStrength.val());
         var strength = numWords / 3 * 32;
-        var words = mnemonic.generate(strength);
+        var buffer = new Uint8Array(strength / 8);
+        // create secure entropy
+        var data = crypto.getRandomValues(buffer);
+        // show the words
+        var words = mnemonic.toMnemonic(data);
         DOM.phrase.val(words);
+        // show the entropy
+        var entropyHex = uint8ArrayToHex(data);
+        DOM.entropy.val(entropyHex);
+        // ensure entropy fields are consistent with what is being displayed
+        DOM.entropyMnemonicLength.val("raw");
         return words;
     }
 
     function calcBip32RootKeyFromSeed(phrase, passphrase) {
         seed = mnemonic.toSeed(phrase, passphrase);
-        bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network);
+        bip32RootKey = bitcoinjs.bitcoin.HDNode.fromSeedHex(seed, network);
     }
 
     function calcBip32RootKeyFromBase58(rootKeyBase58) {
-        bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network);
+        bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
     }
 
     function calcBip32ExtendedKey(path) {
@@ -44104,7 +75125,7 @@ window.Entropy = new (function() {
                 continue;
             }
             var hardened = bit[bit.length-1] == "'";
-            var isPriv = "privKey" in extendedKey;
+            var isPriv = !(extendedKey.isNeutered());
             var invalidDerivationPath = hardened && !isPriv;
             if (invalidDerivationPath) {
                 extendedKey = null;
@@ -44160,7 +75181,7 @@ window.Entropy = new (function() {
 
     function validateRootKey(rootKeyBase58) {
         try {
-            bitcoin.HDNode.fromBase58(rootKeyBase58);
+            bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
         }
         catch (e) {
             return "Invalid root key";
@@ -44184,11 +75205,46 @@ window.Entropy = new (function() {
             console.log("Using derivation path from BIP44 tab: " + derivationPath);
             return derivationPath;
         }
+        else if (bip49TabSelected()) {
+            var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
+            var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
+            var account = parseIntNoNaN(DOM.bip49account.val(), 0);
+            var change = parseIntNoNaN(DOM.bip49change.val(), 0);
+            var path = "m/";
+            path += purpose + "'/";
+            path += coin + "'/";
+            path += account + "'/";
+            path += change;
+            DOM.bip49path.val(path);
+            var derivationPath = DOM.bip49path.val();
+            console.log("Using derivation path from BIP49 tab: " + derivationPath);
+            return derivationPath;
+        }
+        else if (bip84TabSelected()) {
+            var purpose = parseIntNoNaN(DOM.bip84purpose.val(), 84);
+            var coin = parseIntNoNaN(DOM.bip84coin.val(), 0);
+            var account = parseIntNoNaN(DOM.bip84account.val(), 0);
+            var change = parseIntNoNaN(DOM.bip84change.val(), 0);
+            var path = "m/";
+            path += purpose + "'/";
+            path += coin + "'/";
+            path += account + "'/";
+            path += change;
+            DOM.bip84path.val(path);
+            var derivationPath = DOM.bip84path.val();
+            console.log("Using derivation path from BIP84 tab: " + derivationPath);
+            return derivationPath;
+        }
         else if (bip32TabSelected()) {
             var derivationPath = DOM.bip32path.val();
             console.log("Using derivation path from BIP32 tab: " + derivationPath);
             return derivationPath;
         }
+        else if (bip141TabSelected()) {
+            var derivationPath = DOM.bip141path.val();
+            console.log("Using derivation path from BIP141 tab: " + derivationPath);
+            return derivationPath;
+        }
         else {
             console.log("Unknown derivation path");
         }
@@ -44233,8 +75289,10 @@ window.Entropy = new (function() {
             return "No root key";
         }
         // Check no hardened derivation path when using xpub keys
-        var hardened = path.indexOf("'") > -1;
-        var isXpubkey = !("privKey" in bip32RootKey);
+        var hardenedPath = path.indexOf("'") > -1;
+        var hardenedAddresses = bip32TabSelected() && DOM.hardenedAddresses.prop("checked");
+        var hardened = hardenedPath || hardenedAddresses;
+        var isXpubkey = bip32RootKey.isNeutered();
         if (hardened && isXpubkey) {
             return "Hardened derivation path is invalid with xpub key";
         }
@@ -44253,24 +75311,60 @@ window.Entropy = new (function() {
         // Calculate the account extended keys
         var accountExtendedKey = calcBip32ExtendedKey(path);
         var accountXprv = accountExtendedKey.toBase58();
-        var accountXpub = accountExtendedKey.toBase58(false);
+        var accountXpub = accountExtendedKey.neutered().toBase58();
         // Display the extended keys
         DOM.bip44accountXprv.val(accountXprv);
         DOM.bip44accountXpub.val(accountXpub);
     }
 
+    function displayBip49Info() {
+        // Get the derivation path for the account
+        var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
+        var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
+        var account = parseIntNoNaN(DOM.bip49account.val(), 0);
+        var path = "m/";
+        path += purpose + "'/";
+        path += coin + "'/";
+        path += account + "'/";
+        // Calculate the account extended keys
+        var accountExtendedKey = calcBip32ExtendedKey(path);
+        var accountXprv = accountExtendedKey.toBase58();
+        var accountXpub = accountExtendedKey.neutered().toBase58();
+        // Display the extended keys
+        DOM.bip49accountXprv.val(accountXprv);
+        DOM.bip49accountXpub.val(accountXpub);
+    }
+
+    function displayBip84Info() {
+        // Get the derivation path for the account
+        var purpose = parseIntNoNaN(DOM.bip84purpose.val(), 84);
+        var coin = parseIntNoNaN(DOM.bip84coin.val(), 0);
+        var account = parseIntNoNaN(DOM.bip84account.val(), 0);
+        var path = "m/";
+        path += purpose + "'/";
+        path += coin + "'/";
+        path += account + "'/";
+        // Calculate the account extended keys
+        var accountExtendedKey = calcBip32ExtendedKey(path);
+        var accountXprv = accountExtendedKey.toBase58();
+        var accountXpub = accountExtendedKey.neutered().toBase58();
+        // Display the extended keys
+        DOM.bip84accountXprv.val(accountXprv);
+        DOM.bip84accountXpub.val(accountXpub);
+    }
+
     function displayBip32Info() {
         // Display the key
         DOM.seed.val(seed);
         var rootKey = bip32RootKey.toBase58();
         DOM.rootKey.val(rootKey);
         var xprvkeyB58 = "NA";
-        if (bip32ExtendedKey.privKey) {
+        if (!bip32ExtendedKey.isNeutered()) {
             xprvkeyB58 = bip32ExtendedKey.toBase58();
         }
         var extendedPrivKey = xprvkeyB58;
         DOM.extendedPrivKey.val(extendedPrivKey);
-        var extendedPubKey = bip32ExtendedKey.toBase58(false);
+        var extendedPubKey = bip32ExtendedKey.neutered().toBase58();
         DOM.extendedPubKey.val(extendedPubKey);
         // Display the addresses and privkeys
         clearAddressesList();
@@ -44286,21 +75380,41 @@ window.Entropy = new (function() {
                 for (var i=0; i<rows.length; i++) {
                     rows[i].shouldGenerate = false;
                 }
+                hidePending();
             }
 
             for (var i=0; i<total; i++) {
                 var index = i + start;
-                rows.push(new TableRow(index));
+                var isLast = i == total - 1;
+                rows.push(new TableRow(index, isLast));
             }
 
         })());
     }
 
-    function TableRow(index) {
+    function segwitSelected() {
+        return bip49TabSelected() || bip84TabSelected() || bip141TabSelected();
+    }
+
+    function p2wpkhSelected() {
+        return bip84TabSelected() ||
+                bip141TabSelected() && DOM.bip141semantics.val() == "p2wpkh";
+    }
+
+    function p2wpkhInP2shSelected() {
+        return bip49TabSelected() ||
+            (bip141TabSelected() && DOM.bip141semantics.val() == "p2wpkh-p2sh");
+    }
+
+    function TableRow(index, isLast) {
 
         var self = this;
         this.shouldGenerate = true;
         var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
+        var isSegwit = segwitSelected();
+        var segwitAvailable = networkHasSegwit();
+        var isP2wpkh = p2wpkhSelected();
+        var isP2wpkhInP2sh = p2wpkhInP2shSelected();
 
         function init() {
             calculateValues();
@@ -44311,7 +75425,7 @@ window.Entropy = new (function() {
                 if (!self.shouldGenerate) {
                     return;
                 }
-                var key = "";
+                var key = "NA";
                 if (useHardenedAddresses) {
                     key = bip32ExtendedKey.deriveHardened(index);
                 }
@@ -44320,17 +75434,17 @@ window.Entropy = new (function() {
                 }
                 var address = key.getAddress().toString();
                 var privkey = "NA";
-                if (key.privKey) {
-                    privkey = key.privKey.toWIF(network);
+                if (!key.isNeutered()) {
+                    privkey = key.keyPair.toWIF(network);
                 }
-                var pubkey = key.pubKey.toHex();
+                var pubkey = key.getPublicKeyBuffer().toString('hex');
                 var indexText = getDerivationPath() + "/" + index;
                 if (useHardenedAddresses) {
                     indexText = indexText + "'";
                 }
                 // Ethereum values are different
                 if (networks[DOM.network.val()].name == "ETH - Ethereum") {
-                    var privKeyBuffer = key.privKey.d.toBuffer();
+                    var privKeyBuffer = key.keyPair.d.toBuffer();
                     privkey = privKeyBuffer.toString('hex');
                     var addressBuffer = ethUtil.privateToAddress(privKeyBuffer);
                     var hexAddress = addressBuffer.toString('hex');
@@ -44344,7 +75458,29 @@ window.Entropy = new (function() {
                     privkey = convertRipplePriv(privkey);
                     address = convertRippleAdrr(address);
                 }
+                // Segwit addresses are different
+                if (isSegwit) {
+                    if (!segwitAvailable) {
+                        return;
+                    }
+                    if (isP2wpkh) {
+                        var keyhash = bitcoinjs.bitcoin.crypto.hash160(key.getPublicKeyBuffer());
+                        var scriptpubkey = bitcoinjs.bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
+                        address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
+                    }
+                    else if (isP2wpkhInP2sh) {
+                        var keyhash = bitcoinjs.bitcoin.crypto.hash160(key.getPublicKeyBuffer());
+                        var scriptsig = bitcoinjs.bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
+                        var addressbytes = bitcoinjs.bitcoin.crypto.hash160(scriptsig);
+                        var scriptpubkey = bitcoinjs.bitcoin.script.scriptHash.output.encode(addressbytes);
+                        address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
+                    }
+                }
                 addAddressToList(indexText, address, pubkey, privkey);
+                if (isLast) {
+                    hidePending();
+                    updateCsv();
+                }
             }, 50)
         }
 
@@ -44353,12 +75489,19 @@ window.Entropy = new (function() {
     }
 
     function showMore() {
-        var start = DOM.addresses.children().length;
         var rowsToAdd = parseInt(DOM.rowsToAdd.val());
         if (isNaN(rowsToAdd)) {
             rowsToAdd = 20;
             DOM.rowsToAdd.val("20");
         }
+        var start = parseInt(DOM.moreRowsStartIndex.val())
+        if (isNaN(start)) {
+            start = lastIndexInTable() + 1;
+        }
+        else {
+            var newStart = start + rowsToAdd;
+            DOM.moreRowsStartIndex.val(newStart);
+        }
         if (rowsToAdd > 200) {
             var msg = "Generating " + rowsToAdd + " rows could take a while. ";
             msg += "Do you want to continue?";
@@ -44371,12 +75514,13 @@ window.Entropy = new (function() {
 
     function clearDisplay() {
         clearAddressesList();
-        clearKey();
+        clearKeys();
         hideValidationError();
     }
 
     function clearAddressesList() {
         DOM.addresses.empty();
+        DOM.csv.val("");
         stopGenerating();
     }
 
@@ -44387,10 +75531,20 @@ window.Entropy = new (function() {
         }
     }
 
-    function clearKey() {
+    function clearKeys() {
+        clearRootKey();
+        clearDerivedKeys();
+    }
+
+    function clearRootKey() {
         DOM.rootKey.val("");
+    }
+
+    function clearDerivedKeys() {
         DOM.extendedPrivKey.val("");
         DOM.extendedPubKey.val("");
+        DOM.bip44accountXprv.val("");
+        DOM.bip44accountXpub.val("");
     }
 
     function addAddressToList(indexText, address, pubkey, privkey) {
@@ -44478,6 +75632,9 @@ window.Entropy = new (function() {
             var option = $("<option>");
             option.attr("value", i);
             option.text(network.name);
+            if (network.name == "BTC - Bitcoin") {
+                option.prop("selected", true);
+            }
             DOM.phraseNetwork.append(option);
         }
     }
@@ -44656,6 +75813,8 @@ window.Entropy = new (function() {
         var phrase = mnemonic.toMnemonic(entropyArr);
         // Set the mnemonic in the UI
         DOM.phrase.val(phrase);
+        // Show the word indexes
+        showWordIndexes();
     }
 
     function clearEntropyFeedback() {
@@ -44694,6 +75853,16 @@ window.Entropy = new (function() {
         DOM.entropyWordCount.text(wordCount);
         DOM.entropyBinary.text(entropy.binaryStr);
         DOM.entropyBitsPerEvent.text(bitsPerEvent);
+        // detect and warn of filtering
+        var rawNoSpaces = DOM.entropy.val().replace(/\s/g, "");
+        var cleanNoSpaces = entropy.cleanStr.replace(/\s/g, "");
+        var isFiltered = rawNoSpaces.length != cleanNoSpaces.length;
+        if (isFiltered) {
+            DOM.entropyFilterWarning.removeClass('hidden');
+        }
+        else {
+            DOM.entropyFilterWarning.addClass('hidden');
+        }
     }
 
     function getEntropyTypeStr(entropy) {
@@ -44768,8 +75937,13 @@ window.Entropy = new (function() {
     function createQr(e) {
         var content = e.target.textContent || e.target.value;
         if (content) {
-            var size = 130;
-            DOM.qrImage.qrcode({width: size, height: size, text: content});
+            var qrEl = kjua({
+                text: content,
+                render: "canvas",
+                size: 310,
+                ecLevel: 'H',
+            });
+            DOM.qrImage.append(qrEl);
             if (!showQr) {
                 DOM.qrHider.addClass("hidden");
             }
@@ -44799,145 +75973,378 @@ window.Entropy = new (function() {
         return DOM.bip32tab.hasClass("active");
     }
 
+    function networkHasSegwit() {
+        return networks[DOM.network.val()].segwitAvailable;
+    }
+
+    function bip49TabSelected() {
+        return DOM.bip49tab.hasClass("active");
+    }
+
+    function bip84TabSelected() {
+        return DOM.bip84tab.hasClass("active");
+    }
+
+    function bip141TabSelected() {
+        return DOM.bip141tab.hasClass("active");
+    }
+
+    function setHdCoin(coinValue) {
+        DOM.bip44coin.val(coinValue);
+        DOM.bip49coin.val(coinValue);
+        DOM.bip84coin.val(coinValue);
+    }
+
+    function showSegwitAvailable() {
+        DOM.bip49unavailable.addClass("hidden");
+        DOM.bip49available.removeClass("hidden");
+        DOM.bip141unavailable.addClass("hidden");
+        DOM.bip141available.removeClass("hidden");
+    }
+
+    function showSegwitUnavailable() {
+        DOM.bip49available.addClass("hidden");
+        DOM.bip49unavailable.removeClass("hidden");
+        DOM.bip141available.addClass("hidden");
+        DOM.bip141unavailable.removeClass("hidden");
+    }
+
+    function useBitpayAddresses() {
+        return !(DOM.useBitpayAddresses.prop("checked"));
+    }
+
+    function setBitcoinCashNetworkValues() {
+        if (useBitpayAddresses()) {
+            network = bitcoinjs.bitcoin.networks.bitcoin;
+        }
+        else {
+            network = bitcoinjs.bitcoin.networks.bitcoinCashBitbpay;
+        }
+    }
+
+    function adjustNetworkForSegwit() {
+        // If segwit is selected the xpub/xprv prefixes need to be adjusted
+        // to avoid accidentally importing BIP49 xpub to BIP44 watch only
+        // wallet.
+        // See https://github.com/iancoleman/bip39/issues/125
+        var segwitNetworks = null;
+        // if a segwit network is alread selected, need to use base network to
+        // look up new parameters
+        if ("baseNetwork" in network) {
+            network = bitcoinjs.bitcoin.networks[network.baseNetwork];
+        }
+        // choose the right segwit params
+        if (p2wpkhSelected() && "p2wpkh" in network) {
+            network = network.p2wpkh;
+        }
+        else if (p2wpkhInP2shSelected() && "p2wpkhInP2sh" in network) {
+            network = network.p2wpkhInP2sh;
+        }
+    }
+
+    function lastIndexInTable() {
+        var pathText = DOM.addresses.find(".index").last().text();
+        var pathBits = pathText.split("/");
+        var lastBit = pathBits[pathBits.length-1];
+        var lastBitClean = lastBit.replace("'", "");
+        return parseInt(lastBitClean);
+    }
+
+    function uint8ArrayToHex(a) {
+        var s = ""
+        for (var i=0; i<a.length; i++) {
+            var h = a[i].toString(16);
+            while (h.length < 2) {
+                h = "0" + h;
+            }
+            s = s + h;
+        }
+        return s;
+    }
+
+    function showWordIndexes() {
+        var phrase = DOM.phrase.val();
+        var words = phraseToWordArray(phrase);
+        var wordIndexes = [];
+        var language = getLanguage();
+        for (var i=0; i<words.length; i++) {
+            var word = words[i];
+            var wordIndex = WORDLISTS[language].indexOf(word);
+            wordIndexes.push(wordIndex);
+        }
+        var wordIndexesStr = wordIndexes.join(", ");
+        DOM.entropyWordIndexes.text(wordIndexesStr);
+    }
+
+    function updateCsv() {
+        var tableCsv = "path,address,public key,private key\n";
+        var rows = DOM.addresses.find("tr");
+        for (var i=0; i<rows.length; i++) {
+            var row = $(rows[i]);
+            var cells = row.find("td");
+            for (var j=0; j<cells.length; j++) {
+                var cell = $(cells[j]);
+                if (!cell.children().hasClass("invisible")) {
+                    tableCsv = tableCsv + cell.text();
+                }
+                if (j != cells.length - 1) {
+                    tableCsv = tableCsv + ",";
+                }
+            }
+            tableCsv = tableCsv + "\n";
+        }
+        DOM.csv.val(tableCsv);
+    }
+
     var networks = [
+        {
+            name: "BCH - Bitcoin Cash",
+            segwitAvailable: false,
+            onSelect: function() {
+                DOM.useBitpayAddressesContainer.removeClass("hidden");
+                setBitcoinCashNetworkValues();
+                setHdCoin(145);
+            },
+        },
         {
             name: "BTC - Bitcoin",
+            segwitAvailable: true,
             onSelect: function() {
-                network = bitcoin.networks.bitcoin;
-                DOM.bip44coin.val(0);
+                network = bitcoinjs.bitcoin.networks.bitcoin;
+                setHdCoin(0);
             },
         },
         {
             name: "BTC - Bitcoin Testnet",
+            segwitAvailable: true,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.testnet;
+                setHdCoin(1);
+            },
+        },
+        {
+            name: "BTG - Bitcoin Gold",
+            segwitAvailable: true,
             onSelect: function() {
-                network = bitcoin.networks.testnet;
-                DOM.bip44coin.val(1);
+                network = bitcoinjs.bitcoin.networks.bgold;
+                setHdCoin(0);
             },
         },
         {
             name: "CLAM - Clams",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.clam;
-                DOM.bip44coin.val(23);
+                network = bitcoinjs.bitcoin.networks.clam;
+                setHdCoin(23);
             },
         },
         {
             name: "CRW - Crown",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.crown;
-                DOM.bip44coin.val(72);
+                network = bitcoinjs.bitcoin.networks.crown;
+                setHdCoin(72);
             },
         },
         {
             name: "DASH - Dash",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.dash;
-                DOM.bip44coin.val(5);
+                network = bitcoinjs.bitcoin.networks.dash;
+                setHdCoin(5);
             },
         },
         {
             name: "DASH - Dash Testnet",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.dashtn;
-                DOM.bip44coin.val(1);
+                network = bitcoinjs.bitcoin.networks.dashtn;
+                setHdCoin(1);
             },
         },
         {
             name: "DOGE - Dogecoin",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.dogecoin;
-                DOM.bip44coin.val(3);
+                network = bitcoinjs.bitcoin.networks.dogecoin;
+                setHdCoin(3);
             },
         },
         {
             name: "ETH - Ethereum",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.bitcoin;
-                DOM.bip44coin.val(60);
+                network = bitcoinjs.bitcoin.networks.bitcoin;
+                setHdCoin(60);
+            },
+        },
+        {
+            name: "FJC - Fujicoin",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.fujicoin;
+                setHdCoin(75);
             },
         },
         {
             name: "GAME - GameCredits",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.game;
-                DOM.bip44coin.val(101);
+                network = bitcoinjs.bitcoin.networks.game;
+                setHdCoin(101);
             },
         },
         {
             name: "JBS - Jumbucks",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.jumbucks;
+                setHdCoin(26);
+            },
+        },
+        {
+            name: "KMD - Komodo",
+            bip49available: false,
             onSelect: function() {
-                network = bitcoin.networks.jumbucks;
-                DOM.bip44coin.val(26);
+                network = bitcoinjs.bitcoin.networks.komodo;
+                setHdCoin(141);
             },
         },
         {
             name: "LTC - Litecoin",
+            segwitAvailable: true,
             onSelect: function() {
-                network = bitcoin.networks.litecoin;
-                DOM.bip44coin.val(2);
+                network = bitcoinjs.bitcoin.networks.litecoin;
+                setHdCoin(2);
+                DOM.litecoinLtubContainer.removeClass("hidden");
+            },
+        },
+        {
+            name: "MAZA - Maza",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.maza;
+                setHdCoin(13);
+            },
+        },
+        {
+            name: "MONA - Monacoin",
+            segwitAvailable: true,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.monacoin,
+                setHdCoin(22);
             },
         },
         {
             name: "NMC - Namecoin",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.namecoin;
+                setHdCoin(7);
+            },
+        },
+        {
+            name: "ONX - Onixcoin",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.onixcoin;
+                setHdCoin(174);
+            },
+        },
+        {
+            name: "PIVX - PIVX",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.pivx;
+                setHdCoin(119);
+            },
+        },
+        {
+            name: "PIVX - PIVX Testnet",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.namecoin;
-                DOM.bip44coin.val(7);
+                network = bitcoinjs.bitcoin.networks.pivxtestnet;
+                setHdCoin(1);
             },
         },
         {
             name: "PPC - Peercoin",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.peercoin;
-                DOM.bip44coin.val(6);
+                network = bitcoinjs.bitcoin.networks.peercoin;
+                setHdCoin(6);
             },
         },
         {
             name: "SDC - ShadowCash",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.shadow;
-                DOM.bip44coin.val(35);
+                network = bitcoinjs.bitcoin.networks.shadow;
+                setHdCoin(35);
             },
         },
         {
             name: "SDC - ShadowCash Testnet",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.shadowtn;
-                DOM.bip44coin.val(1);
+                network = bitcoinjs.bitcoin.networks.shadowtn;
+                setHdCoin(1);
             },
         },
         {
             name: "SLM - Slimcoin",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.slimcoin;
-                DOM.bip44coin.val(63);
+                network = bitcoinjs.bitcoin.networks.slimcoin;
+                setHdCoin(63);
             },
         },
         {
             name: "SLM - Slimcoin Testnet",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.slimcointn;
-                DOM.bip44coin.val(111);
+                network = bitcoinjs.bitcoin.networks.slimcointn;
+                setHdCoin(111);
+            },
+        },
+        {
+            name: "USNBT - NuBits",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.nubits;
+                setHdCoin(12);
             },
         },
         {
             name: "VIA - Viacoin",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.viacoin;
-                DOM.bip44coin.val(14);
+                network = bitcoinjs.bitcoin.networks.viacoin;
+                setHdCoin(14);
             },
         },
         {
             name: "VIA - Viacoin Testnet",
+            segwitAvailable: false,
+            onSelect: function() {
+                network = bitcoinjs.bitcoin.networks.viacointestnet;
+                setHdCoin(1);
+            },
+        },
+        {
+            name: "XMY - Myriadcoin",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.viacointestnet;
-                DOM.bip44coin.val(1);
+                network = bitcoinjs.bitcoin.networks.myriadcoin;
+                setHdCoin(90);
             },
         },
         {
             name: "XRP - Ripple",
+            segwitAvailable: false,
             onSelect: function() {
-                network = bitcoin.networks.bitcoin;
-                DOM.bip44coin.val(144);
+                network = bitcoinjs.bitcoin.networks.bitcoin;
+                setHdCoin(144);
             },
         }
     ]