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, 99 insertions, 0 deletions

diff --git a/doc/md/Download-and-Installation.md b/doc/md/Download-and-Installation.md
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+To install Shaarli, simply place the files in a directory under your webserver's Document Root (or directly at the document root). Make sure your [server](Server-requirements) is properly [configured](Server-configuration).
+
+Several releases are available:
+
+--------------------------------------------------------
+
+## Latest release (recommended)
+### Download as an archive
+Get the latest released version from the [releases](https://github.com/shaarli/Shaarli/releases) page.
+
+**Download our *shaarli-full* archive** to include dependencies.
+
+The current latest released version is `v0.8.4`
+
+Or in command lines:
+
+```bash
+$ wget https://github.com/shaarli/Shaarli/releases/download/v0.8.4/shaarli-v0.8.4-full.zip
+$ unzip shaarli-v0.8.4-full.zip
+$ mv Shaarli /path/to/shaarli/
+```
+
+|  !  |In most cases, download Shaarli from the [releases](https://github.com/shaarli/Shaarli/releases) page. Cloning using `git` or downloading Github branches as zip files requires additional steps (see below).|
+|-----|--------------------------|
+
+### Using git
+
+```
+mkdir -p /path/to/shaarli && cd /path/to/shaarli/
+git clone -b v0.8 https://github.com/shaarli/Shaarli.git .
+composer install --no-dev
+```
+
+--------------------------------------------------------
+
+## Stable version
+
+The stable version has been experienced by Shaarli users, and will receive security updates.
+
+### Download as an archive
+
+As a .zip archive:
+
+```bash
+$ wget https://github.com/shaarli/Shaarli/archive/stable.zip
+$ unzip stable.zip
+$ mv Shaarli-stable /path/to/shaarli/
+```
+
+As a .tar.gz archive :
+
+```bash
+$ wget https://github.com/shaarli/Shaarli/archive/stable.tar.gz
+$ tar xvf stable.tar.gz
+$ mv Shaarli-stable /path/to/shaarli/
+```
+
+### Clone with Git 
+
+[Composer](https://getcomposer.org/) is required to build a functional Shaarli installation when pulling from git.
+
+```bash
+$ git clone https://github.com/shaarli/Shaarli.git -b stable /path/to/shaarli/
+# install/update third-party dependencies
+$ cd /path/to/shaarli/
+$ composer install --no-dev
+```
+
+--------------------------------------------------------
+
+## Development version (mainline)
+
+_Use at your own risk!_
+
+To get the latest changes from the `master` branch:
+
+```bash
+# clone the repository  
+$ git clone https://github.com/shaarli/Shaarli.git -b master /path/to/shaarli/
+# install/update third-party dependencies
+$ cd /path/to/shaarli
+$ composer install --no-dev
+```
+
+--------------------------------------------------------
+
+## Finish Installation
+
+Once Shaarli is downloaded and files have been placed at the correct location, open it this location your favorite browser.
+
+![install screenshot](http://i.imgur.com/wuMpDSN.png)
+
+Setup your Shaarli installation, and it's ready to use!
+
+--------------------------------------------------------
+
+## Updating Shaarli
+
+See [Upgrade and Migration](Upgrade-and-migration)