Added cubes and rotation
Added Rotation of cube with Keyboard

Used rotationaroundworldaxis helper for rotation..
New class rot_animation handles the animation.
window height corrections
Plane added to scene.
Generic code
Merge branch 'gh-pages' of https://github.com/Kshitij-Banerjee/Cube-2048 into gh-pages

Conflicts:
	index.html
	js/cube.js