added stub art (food, enemies, etc.)
Merge remote-tracking branch 'upstream/master'
Merge pull request #9 from thesubway/master

Return physics bodies to each food node. Establish point system for food
Merge remote-tracking branch 'upstream/master'
added audio stubs
Merge pull request #10 from michaeltirenin/master

added audio stub
Merge pull request #11 from thesubway/master

Code clean-up.
Randomize eating sound with a Sound Play Manager