Added stub test for UserManager

Added stub that still fails test (that's okay, because it's a stub).
Merge branch 'master' of https://github.com/realtalk403/realtalk
Added Stub ChatController

Also added IChatController interface
Merge pull request #136 from taylorsw/master

Stub class for ChatManager
Merge branch 'master' of https://github.com/realtalk403/realtalk
small changes