How to Play screen now shows generic key icons rather than Mac-specific ones
The left and right arrow keys can now be held down when moving pieces
"Bag" selection type no longer always generates an I peice first
"Bag" selection type now resets its memory each game
F1 now toggles fullscreen
Game window integer scales to the largest possible size on bootup (Pixels are still distorted in fullscreen because GameMaker won't let me integer scale in fullscreen)
Overhauled sounds and music
Game board now has a grid to more easily see where pieces will drop
The game can no longer be paused while on the Game Over screen
