Added Spritemap support for playing adhoc animations.
Merge branch 'dev' of https://github.com/HaxePunk/HaxePunk
Added reset control to Spritemap.stop(). Fixed stop() failing to update the buffer.
Merge branch 'master' of github.com:scriptorum/HaxePunk into scriptorum-master

Conflicts:
	com/haxepunk/graphics/Animation.hx
	com/haxepunk/graphics/Spritemap.hx
Merge branch 'scriptorum-master' into dev