Hack together something to switch keyframes
Rough skeletal animation
Improve animation performance
Improve performance of matrix math
Linear interpolate keyframes
Tile the floor
Revert "Improve performance of matrix math"

This reverts commit a17a6e820f25b7532a71fc36e21c4f20bfb83ac6.

Conflicts:
	app/assets/javascripts/matrix/matrix4.js.coffee