Added FirebaseProtocol which has initWithDictionary and toDictionary methods that require our data objects to implement them. Really, they already did this, this just is a handy thing to force our methods to do it. We could also subclass a category on NSObject if we wanted, which would achieve the same goal.
Added some xcode metadata... Which I probably haven't changed in a while.
Merge branch 'master' of https://github.com/mcdonamp/smorgasbord