v0.2.1 - Fullscreen/Sound Update

This updated adds the ability to run the game full screen and also adds a simple sound engine

-Updated the drawing screen to allow fullscreen mode
-Added a semi transparent background to the menu screen that will darken everything except the actual menu itself
-Added a functioning sound system
    -The sound engine controls the loading of the sound files
    -A separate class actually plays the files in a background thread
Merge branch 'master' of http://github.com/monkeyannex/notsuperpong

Merging Michael's updates to the collision system with the changes I have made to the full screen and sound engine features