Created a documentation about the idea of this platform improvment
Add apache-mod-php compatibility
Add composer option, nginx frontend and php-fpm interpretor
Remove HHVM from README.md as it is out of current scope
Add the `apache` frontend
Allow to use custom `php.ini` file
PHP-FPM listen configuration set automatically
Deploy environment variables to PHP-FPM
Supports `tsuru.[yml|yaml]` file and deprecate `app.[yml|yaml]`
Merge branch 'optionable-php-platform' of https://github.com/sroze/basebuilder