Lots of tidy up for CLErrorManager, cleaned out CLViewController test code, need to add real tests that demonstrate the library code, will add this later.
Added better commenting and formatting in CLErrorManager
Added new -sharedManager initializer for convenience. Even if you use one of the other -sharedManager.. methods since its a singleton -sharedManager will return the same instance. This is great for initializing using a different path or dictionary on launch, and then accessing through the generic -sharedManager method.
If you do call -sharedManager first however, the class will attempt to locate Errors.plist in the main bundle, if not you'll get assert errors, otherwise everything will JUST WORK!