WebGLU now on GitHub

WebGLU, the library that makes WebGL development easy, has been moved to GitHub. I've gotten several requests for this move. Seems like the move couldn't hurt, so after some deliberation I've decided to do it.

In performing this move I've cleaned up the examples folder so that it now contains working examples which include texture mapping, keyframed animation, and the videosphere. I've also formalized the 'built-in' shaders into their own folder whose path is defined in $W.ShaderDir should you want to have it elsewhere.

-WebGLU's GitHub page