Version 0.2 released!

Some code cleanup and added documentation and manual. The assignment of keys will now close the program as well, so it will have to be run again (now without assigning keys).

I'm planning on dealing with the joystick events using sdl's joystick interface from now, as it will work with other *nix other than linux as well. Hell, it might even work with cygwin! (But I doubt it.) Anyways, this will probably be the last release without sdl. I know sdl is another dependency and it kinda sucks ass but sdl isn't that huge.