- Upgraded to Play 2.1.3
- Added a enableRefererAsOriginalUrl property to enable/disable the use of the referer as the originalUrl
  since this was causing issues for some people (defaults to false).  This is a temporary until a final
  solution is developed.
- Renamed class name UserId to IdentityId (breaks backwards compatibility)
- Renamed id field in UserId to userId (breaks backwards compatibility)
- Renamed id field in Identity to identityId (breaks backwards compatibility)
Implements a one-step user registration
- Moves old registration controller inside "registration" package
- Creates a new registration controller that creates the User in one step
- Creates an action for email verification
- Add views for the new actions/emails
- Adds methods for new views, in Mailer and TemplatePlugin (without breaking backward compatibilty)
- Adds a state field in Identity trait, to hold the state of email verification
- Adds configuration options to choose the registration method
Changes user registeration to not leak user info, about which emails are registered
merged full registration