Scoped status updates and creates with testing.
Generated UserFriendship model.
Customized UserFriendship table.
Installed should gem, sqlite3 gem. Tried to install pg gem but then deleted it.
Added user friendships and associated tests.
Generated user_friendships controller.
Added new method to user_friendships controller and included to_param method in user model.
Add create method to user friendship controller.
Added integration test for adding friends.