+ Added info for snake on games.html
	+ started mario canvas rewrite
	+ Mario jump/double jump/crouch all works great
	+ added bullet bill enemies, still no collision detection
	+ added music and boing effect.  Fixed crouch bug
	+ most enemies are there in mario game
	+ score is kept
	+ game gets harder as time goes on
	+ you can walk on top of pencils
	+ added some tunes and a death animation when game over
	+ bug fixes with pencils, can hit bottom without dying