virtual functions in Actor derived classes aligned
Virtuals exposed, update's removed
MoveTo with Vector2 in CameraActor removed
Remove Update, Render, and ReceiveMessage hooks
Typemap fixes for const ref parameters

Updating typemaps (back port from Angel4) to support both simple Vector
parameters and references. Changing interface files that use such
parameters as a result. (Same with Color).
Adding combined operators to Vector2 scripting interface
Merge pull request #1 from sjml/master

Typemap fixes for const ref parameters
Merge pull request #13 from Alicemargatroid/master

virtual functions in Actor derived classes aligned