Maze generation and the start of animation

I don't have animation fully fleshed out yet, but it is working (you
can't start/stop/pause whatever, which is kinda important).
I added a quick and dirty way of making mazes so we can edit the level
easily on the fly (check out the matrix in game.js)
Added a set position function for the player phys box
increased the number of circles necessary for the ritaul