Javascript Gamelib update

I'm slogging through the old code in javascript gamelib. It's really interesting to see how far things have come since this was created. I can totally see ripping out alot of the code for things like browser detection, movement, cookies, and other things. YUI already has those, so this'll make the JavascriptGameLib even more lightweight.

I also will be adding new features like a tile engine, so you can create simple Angband like RPGs.

If you have any feature requests, or other questions about JavascriptGameLib, please email me!