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, 34 insertions, 0 deletions

diff --git a/doc/md/Directory-structure.md b/doc/md/Directory-structure.md
new file mode 100644
index 00000000..eb50965b
--- /dev/null
+++ b/doc/md/Directory-structure.md
@@ -0,0 +1,34 @@
+TODO: This page is out of date
+
+Here is the directory structure of Shaarli and the purpose of the different files:
+
+```bash
+        index.php        # Main program
+        application/     # Shaarli classes
+                ├── LinkDB.php
+                └── Utils.php
+        tests/       # Shaarli unitary & functional tests
+                ├── LinkDBTest.php
+                ├── utils  # utilities to ease testing
+                │   └── ReferenceLinkDB.php
+                └── UtilsTest.php
+    COPYING          # Shaarli license
+    inc/             # static assets and 3rd party libraries
+        ├── awesomplete.*          # tags autocompletion library
+        ├── blazy.*                # picture wall lazy image loading library
+        ├── shaarli.css, reset.css # Shaarli stylesheet.
+        ├── qr.*                   # qr code generation library
+        └──rain.tpl.class.php      # RainTPL templating library
+    tpl/             # RainTPL templates for Shaarli. They are used to build the pages.
+    images/          # Images and icons used in Shaarli
+    data/            # data storage: bookmark database, configuration, logs, banlist…
+        ├── config.php             # Shaarli configuration (login, password, timezone, title…)
+        ├── datastore.php          # Your link database (compressed).
+        ├── ipban.php              # IP address ban system data
+        ├── lastupdatecheck.txt    # Update check timestamp file
+        └──log.txt                 # login/IPban log.
+    cache/           # thumbnails cache
+                     # This directory is automatically created. You can erase it anytime you want.
+    tmp/             # Temporary directory for compiled RainTPL templates.
+                     # This directory is automatically created. You can erase it anytime you want.
+```