started working on shark movement
started cleaning up main loop and moving sharks
added double buffering
added double buffering for sharks and player
try to have bullets use double buffering
fixing bullet double buffering
some changes with scoreboard
merged and its working without double buffering.
merged double buffering code, and all cleaning by sarah and steven
took out audio_up_hack
Merge pull request #4 from jordenh/mergeDisplay

Merge display