Integrate the FOS/UserBundle into the Sonata Project

- AdminBundle : add user and group management
- EasyExtends : allows to generate Application level model

Installation

you have 2 otpions to initialize the SonataUserBundle, you can select which bundle SonataUserBundle extends

    - new Sonata\UserBundle\SonataUserBundle('FOSUserBundle') : the bundle will extends ``FOSUserBundle``
    - new Sonata\UserBundle\SonataUserBundle() : the bundle will NOT extends ``FOSUserBundle``