Use pyglet resource.path to index sound resource files
Thanks to PR #32 by @tfaris
Pyglet does not like backslashes at all, and wants to be fed /'s only
Show cracks while breaking blocks
Bugfix
Merge remote-tracking branch 'avelanarius/master'
Merge commit '1161ef80ccb31d9c894fe592c7cdeb5c91716c50'

Conflicts:
	sounds.py