Add testing page & update createWorld() to make use of this
Fix Ball Speed
Change ballBounce() to bounce balls more realistically
Solo version where I bounce against wall
Two player local
Arbitrary number of player field generation
Draw from center of canvas/window versus top left(?)
Look into canvas scaling with window
Add color property to game object constructor
Expose color changing for all classes
BUG with shallow angle bounce (probably because of variable framerate)