Updated appearance to include ObjC compatibility.  Added appearance options to input.  Small notes and formatting.  Fixed send button sizing issue.  Send button enabled / disabled now functional.
Renamed LGMessageCell to LGChatMessageCell.  Added imageView support.
Fixed issue with messages being sent to deallocated objects causing crash.  Removed old user image.
ObjC Compatibility for LGMessage class.  Chat controller delegate for more behavior control.
Small rotation support updates.