Generate HTML documentation using MkDocs (WIP)

MkDocs is a static site generator geared towards building project documentation.
Documentation source files are written in Markdown, and configured with a single YAML file.

 * http://www.mkdocs.org/
 * http://www.mkdocs.org/user-guide/configuration/

Ref. #312

* remove pandoc-generated HTML documentation
* move markdown doc to doc/md/,
* mkdocs.yml:
  * generate HTML doc in doc/html
  * add pages TOC/ordering
  * use index.md as index page
* Makefile: remove execute permissions from generated files
* Makefile: rewrite htmlpages GFM to markdown conversion using sed:
   awk expression aslo matched '][' which causes invalid output on complex links with images or code blocks
* Add mkdocs.yml to .gitattributes, exclude this file from release archives
* Makefile: rename: htmldoc -> doc_html target
* run make doc: pull latest markdown documentation from wiki
* run make htmlpages: update html documentation

1 files changed, 30 insertions, 0 deletions

diff --git a/doc/md/Bookmarklet.md b/doc/md/Bookmarklet.md
new file mode 100644
index 00000000..265ced44
--- /dev/null
+++ b/doc/md/Bookmarklet.md
@@ -0,0 +1,30 @@
+### Add the sharing button (_bookmarklet_) to your browser
+
+ * Open your Shaarli and `Login`
+ * Click the `Tools` button in the top bar
+ * Drag the **`✚Shaare link` button**, and drop it to your browser's bookmarks bar.
+
+_This bookmarklet button is compatible with Firefox, Opera, Chrome and Safari. Under Opera, you can't drag'n drop the button: You have to right-click on it and add a bookmark to your personal toolbar._
+
+![](images/bookmarklet.png)
+
+### Share links using the _bookmarklet_
+
+ * When you are visiting a webpage you would like to share with Shaarli, click the _bookmarklet_ you just added.
+ * A window opens.
+  * You can freely edit title, description, tags... to find it later using the text search or tag filtering.
+  * You will be able to edit this link later using the ![](https://raw.githubusercontent.com/shaarli/Shaarli/master/images/edit_icon.png) edit button.
+  * You can also check the “Private” box so that the link is saved but only visible to you. 
+ * Click `Save`.**Voilà! Your link is now shared.**
+
+### Troubleshooting: The bookmarklet doesn't work with a few website (e.g. Github.com)
+
+Websites which enforce Content Security Policy (CSP), such as github.com, disallow usage of bookmarklets. Unfortunatly, there is nothing Shaarli can do about it.
+
+See [#196](https://github.com/shaarli/Shaarli#196).
+
+There is an open bug for both Firefox and Chromium:
+
+  * https://bugzilla.mozilla.org/show_bug.cgi?id=866522
+  * https://code.google.com/p/chromium/issues/detail?id=233903
+