Made a Class.js version of PhysicsSprite. Untested.
Heroes work! Next up, Destinations!
Heroes and Destinations work! with Class.js! This should help prevent issues in the future.
Hid initialization from Game.js and put it in ALE.js. Also started replacing 'namespace' with explicit calls to Game and ALE as I spot them. Just looks cleaner.
Post merge with classy. Switching branches screws up visual studio stuff. So this commit is to account for that.