Switched to SecureSocial instead of Play-Authenticate.

This makes logins for the API way easier. Currently, you can auth with /api/v1/login?email=email@email.com&password=password
The page will give you either INVALID or VALID in plain text (for now. When fully implemented, it will have a auth token given)

ACL now works this way: @SecureSocial.SecuredAction (authorization = GeneralACLCheck.class, params = {"param"})
Example with /acltest. The group you are in needs to be allowed in the twitter path. (See app/controllers/Application.onlyTwitter)

Signed-off-by: William Lebel <lebelwilliam@gmail.com>