Implemented EZP-20821: Make it possible to configure the front controller without editing it

Example of Apache configuration in the VirtualHost:

```
    # Environment.
    # Possible values: "prod", "dev", "staging",...
    # Defaults to "prod" if omitted
    SetEnv ENVIRONMENT "prod"

    # Whether to use Symfony's ApcClassLoader.
    # Possible values: 0 or 1
    # Defaults to 0 if omitted
    #SetEnv USE_APC_CLASSLOADER 0

    # Prefix used when USE_APC_CLASSLOADER is set to 1.
    # Use a unique prefix in order to prevent cache key conflicts
    # with other applications also using APC.
    # Defaults to "ezpublish" if omitted
    #SetEnv APC_CLASSLOADER_PREFIX "ezpublish"

    # Whether to use debugging.
    # Possible values: 0 or 1
    # Defaults to 0 if omitted, unless ENVIRONMENT is set to: "dev"
    #SetEnv USE_DEBUGGING 0

    # Whether to use Symfony's HTTP Caching.
    # Disable it if you are using an external reverse proxy (e.g. Varnish)
    # Possible values: 0 or 1
    # Defaults to 1 if omitted, unless ENVIRONMENT is set to: "dev"
    #SetEnv USE_HTTP_CACHE 1

    # Defines the proxies to trust.
    # Separate entries by a comma
    # Example: "proxy1.example.com,proxy2.example.org"
    # By default, no trusted proxies are set
    #SetEnv TRUSTED_PROXIES "127.0.0.1"
```
Merge pull request #51 from patrickallaert/EZP-20821

Implemented EZP-20821: Make it possible to configure the front controller without editing it
Implemented EZP-20841: Provide a router script to use with PHP 5.4 built-in server
Moved ezrouter.php to bin/
Fixed inline comment in ezrouter.php
Merge pull request #52 from ezsystems/ezrouter

Implemented EZP-20841: Provide a router script to use with PHP 5.4 built-in server
Add infomration on how to run eZ Publish in non-vh mode
resolved conflicts
resolved conflicts
updated gitignore
legacy extension developed
first commit with fake db
Merge branch 'master' into produccion

Conflicts:
	ezpublish/config/config.yml
	ezpublish/config/ezpublish.yml
	src/Sillonbol/WebBundle/DependencyInjection/SillonbolWebExtension.php
	src/Sillonbol/WebBundle/Resources/public/css/style.css
	src/Sillonbol/WebBundle/Resources/views/full/article.html.twig
	src/Sillonbol/WebBundle/Resources/views/pagelayout.html.twig
	web/css/ie.css
	web/css/slider.css
	web/css/styles.css
	web/css/styles_style_2.css
	web/index_dev.php
	web/js/scripts.js
	web/js/slider.js
no text-underline for tag links
fake db
legacy extension
legacy extension
removed remain conflict
removed remain conflict
moved README