Committing to omit some changes in other files.
Removed unnecessary method
Implemented pause and resume in controller.
Tweaking with outofbounds.
Game Over looking good now.
Tidied up the code in MotionSnakeChallenge.
Fixed bug with victory condition.
Fixed bug with food placement.
Fixed bug with resetting model and view.
Polishing challenge, instructions now visible in title.
Changed MotionControl to RotationControl for clarity.
Changed name of MotionSnake to RotoSnake, much better name.
Fixed merge conflict when merging in development.