Add CocoaLumberjack for logging
Hit the media link endpoint when taking a photo.
Use #define'd strings for NSUserDefaults keys.
Move LoginView animations to LoginView (from CameraViewController)
Remove unnecessary re-cast to strongly retained self.
FriendsViewController for listing friends/recipients.
Remove obsolete init method.
Registration.

* RegistrationView and LoginView are monitored by RAC subscribers, which
  feels like a bit of an abuse.
* Replaced 'self' in blocks with a __weak self.
Point to live server.
Form behavior adjustments.