changed game loop to use room class
clean up room change code and start to add doors
refine code and room change functionality

-doors are now clickable
-floor tile system is now in place (no individual drawing ability yet)
-lights move with rooms now
-added in initial files for the separate room types
-organized the game files better
give individual tiles an image

-also cleaned up more code
Merge branch 'master' of https://github.com/nichmack/decompression into nichmack-master

Conflicts:
	lib/game/main.js