Bugfix release + Cheat Codes

Just pushed a small update to clean up some bugs that folks have reported over the past few months.

• Pressing the boss key too many times caused the boss key screen to become corrupted and save games to stop working
• Occasionally characters could be made to stop lining up properly on the level grid

If you've run into these bugs and lost your save, I've also added a cheat code system which will let you warp to any level, if you like! Snuck in a couple of other fun tricks there as well. If you're interested, have a peek at CHEAT.JOR and see if you can work out what they all do :)