CONTROLLERS: Authentication and Login basics
CONFIG: Added the basic initializers for the Redbooth application
VIEWS: Login, added the URL to ask for permision to the user
CONTROLLERS: Home#show validation for the presence of the cookie[:rb_t], if not present go to login
LIB: Redbooth::Rest::Authentication to ask for the access_token an return a Authentication object with the response
CONTROLLERS: Implemented the response of the Redbooth::Rest::Authentication and cookies setter
LIB: Redbooth added a RestObject to encapsulate the REST abstraction