First steps towards hover debugger improvements
Fixed various bugs with debug worker
Progress on thang property serialization

There is a bug where thang properties aren’t updated when simulating
forward
Basic backend functionality is there
userCodeMap issues fixed

Now beginning hooking up the UI
Implemented caching and fixed off by one error
Refactored hover debugger is functional

Still needs optimizations and a few bug fixes, but it’s better than the
existing code existing to Nick
Fixed array prototype alteration conflict
Fixed various debugger UI bugs
Fixed another off-by-one error
Merge branch 'feature/hover-debugger-performance'

Conflicts:
	app/lib/God.coffee
	app/views/play/level/tome/spell_debug_view.coffee
Merge branch 'master' of https://github.com/codecombat/codecombat