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, 215 insertions, 0 deletions

diff --git a/doc/md/Shaarli-configuration.md b/doc/md/Shaarli-configuration.md
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+## Foreword
+
+**Do not edit configuration options in index.php! Your changes would be lost.** 
+
+Once your Shaarli instance is installed, the file `data/config.json.php` is generated:
+* it contains all settings in JSON format, and can be edited to customize values
+* it defines which [plugins](Plugin-System) are enabled[](.html)
+* its values override those defined in `index.php`
+* it is wrap in a PHP comment to prevent anyone accessing it, regardless of server configuration
+
+## File and directory permissions
+
+The server process running Shaarli must have:
+- `read` access to the following resources:
+    - PHP scripts: `index.php`, `application/*.php`, `plugins/*.php`
+    - 3rd party PHP and Javascript libraries: `inc/*.php`, `inc/*.js`
+    - static assets:
+        - CSS stylesheets: `inc/*.css`
+        - `images/*`
+    - RainTPL templates: `tpl/*.html`
+- `read`, `write` and `execution` access to the following directories:
+    - `cache` - thumbnail cache
+    - `data` - link data store, configuration options
+    - `pagecache` - Atom/RSS feed cache
+    - `tmp` - RainTPL page cache
+
+On a Linux distribution:
+- the web server user will likely be `www` or `http` (for Apache2)
+- it will be a member of a group of the same name: `www:www`, `http:http`
+- to give it access to Shaarli, either:
+    - unzip Shaarli in the default web server location (usually `/var/www/`) and set the web server user as the owner
+    - put users in the same group as the web server, and set the appropriate access rights
+- if you have a domain / subdomain to serve Shaarli, [configure the server](Server-configuration) accordingly[](.html)
+
+## Configuration
+
+In `data/config.json.php`.
+
+See also [Plugin System](Plugin-System.html).
+
+### Credentials
+ 
+> You shouldn't edit those.
+
+**login**: Login username.  
+**hash**: Generated password hash.  
+**salt**: Password salt.
+
+### General
+
+**title**: Shaarli's instance title.  
+**header_link**: Link to the homepage.  
+**links_per_page**: Number of shaares displayed per page.  
+**timezone**: See [the list of supported timezones](http://php.net/manual/en/timezones.php).  
+**enabled_plugins**: List of enabled plugins.
+
+### Security
+
+**session_protection_disabled**: Disable session cookie hijacking protection (not recommended). 
+It might be useful if your IP adress often changes.  
+**ban_after**: Failed login attempts before being IP banned.  
+**ban_duration**: IP ban duration in seconds.  
+**open_shaarli**: Anyone can add a new link while logged out if enabled.  
+**trusted_proxies**: List of trusted IP which won't be banned after failed login attemps. Useful if Shaarli is behind a reverse proxy.  
+**allowed_protocols**: List of allowed protocols in shaare URLs or markdown-rendered descriptions. Useful if you want to store `javascript:` links (bookmarklets) in Shaarli (default: `["ftp", "ftps", "magnet"]`).
+
+### Resources
+
+**data_dir**: Data directory.  
+**datastore**: Shaarli's links database file path.  
+**history**: Shaarli's operation history file path.
+**updates**: File path for the ran updates file.  
+**log**: Log file path.  
+**update_check**: Last update check file path.  
+**raintpl_tpl**: Templates directory.  
+**raintpl_tmp**: Template engine cache directory.  
+**thumbnails_cache**: Thumbnails cache directory.  
+**page_cache**: Shaarli's internal cache directory.  
+**ban_file**: Banned IP file path.
+
+### Updates
+
+**check_updates**: Enable or disable update check to the git repository.  
+**check_updates_branch**: Git branch used to check updates (e.g. `stable` or `master`).  
+**check_updates_interval**: Look for new version every N seconds (default: every day).
+
+### Privacy
+
+**default_private_links**: Check the private checkbox by default for every new link.  
+**hide_public_links**: All links are hidden while logged out.  
+**hide_timestamps**: Timestamps are hidden.
+
+### Feed
+
+**rss_permalinks**: Enable this to redirect RSS links to Shaarli's permalinks instead of shaared URL.  
+**show_atom**: Display ATOM feed button.
+
+### Thumbnail
+
+**enable_thumbnails**: Enable or disable thumbnail display.  
+**enable_localcache**: Enable or disable local cache.
+
+### Redirector
+
+**url**: Redirector URL, such as `anonym.to`.  
+**encode_url**: Enable this if the redirector needs encoded URL to work properly.
+
+## Configuration file example
+
+```json
+<?php /*
+{
+    "credentials": {
+        "login": "<login>",
+        "hash": "<password hash>",
+        "salt": "<password salt>"
+    },
+    "security": {
+        "ban_after": 4,
+        "session_protection_disabled": false,
+        "ban_duration": 1800,
+        "trusted_proxies": [
+            "1.2.3.4",
+            "5.6.7.8"
+        ],
+        "allowed_protocols": [
+            "ftp",
+            "ftps",
+            "magnet"
+        ]
+    },
+    "resources": {
+        "data_dir": "data",
+        "config": "data\/config.php",
+        "datastore": "data\/datastore.php",
+        "ban_file": "data\/ipbans.php",
+        "updates": "data\/updates.txt",
+        "log": "data\/log.txt",
+        "update_check": "data\/lastupdatecheck.txt",
+        "raintpl_tmp": "tmp\/",
+        "raintpl_tpl": "tpl\/",
+        "thumbnails_cache": "cache",
+        "page_cache": "pagecache"
+    },
+    "general": {
+        "check_updates": true,
+        "rss_permalinks": true,
+        "links_per_page": 20,
+        "default_private_links": true,
+        "enable_thumbnails": true,
+        "enable_localcache": true,
+        "check_updates_branch": "stable",
+        "check_updates_interval": 86400,
+        "enabled_plugins": [
+            "markdown",
+            "wallabag",
+            "archiveorg"
+        ],
+        "timezone": "Europe\/Paris",
+        "title": "My Shaarli",
+        "header_link": "?"
+    },
+    "extras": {
+        "show_atom": false,
+        "hide_public_links": false,
+        "hide_timestamps": false,
+        "open_shaarli": false,
+        "redirector": "http://anonym.to/?",
+        "redirector_encode_url": false
+    },
+    "general": {
+        "header_link": "?",
+        "links_per_page": 20,
+        "enabled_plugins": [
+            "markdown",
+            "wallabag"
+        ],
+        "timezone": "Europe\/Paris",
+        "title": "My Shaarli"
+    },
+    "updates": {
+        "check_updates": true,
+        "check_updates_branch": "stable",
+        "check_updates_interval": 86400
+    },
+    "feed": {
+        "rss_permalinks": true,
+        "show_atom": false
+    },
+    "privacy": {
+        "default_private_links": true,
+        "hide_public_links": false,
+        "hide_timestamps": false
+    },
+    "thumbnail": {
+        "enable_thumbnails": true,
+        "enable_localcache": true
+    },
+    "redirector": {
+        "url": "http://anonym.to/?",
+        "encode_url": false
+    },
+    "plugins": {
+        "WALLABAG_URL": "http://demo.wallabag.org",
+        "WALLABAG_VERSION": "1"
+    }
+} ?>
+```
+
+## Additional configuration
+
+The playvideos plugin may require that you adapt your server's 
+[Content Security Policy](https://github.com/shaarli/Shaarli/blob/master/plugins/playvideos/README.md#troubleshooting) 
+configuration to work properly.[](.html)
+