August game is go

It may be less than two hours before the end of the month, but I finished my August game.

This started out as an input system test, which worked but could use some polishing. I really need to refactor the object system there’s a bunch of isinstance calls that don’t really make sense. I also lazed off on putting a score into the level, and just jammed it into the titlebar, again.

It doesn’t have joystick/gamepad support, which is lame because keyboards suck for 2-user-play.
(Actually with minor changes it could be more players, just change the static player additions and bind some keys!)