Make Projector's projectGraph function private as it's only used internally by the public projectScene method

Need to find some good example for this ...

For the moment works in:

- Chrome stable 20.0.1132.57 OpenGL
- Chrome Canary 22.0.1217.0 ANGLE / OpenGL
- Firefox stable 14.0.1 OpenGL

Changed ColladaLoader to create SkinnedMesh using bone uniforms instead of newly default bone texture.

This just gets back to using the old way, though this whole skinning thing in Collada is weird and should be maybe rewritten - skinning is baked into morphs but then SkinnedMesh is still used which means skeleton is getting updated all the time even while this has no effect on already baked morphs.

Fixes #2243

As per StackOverflow question: http://stackoverflow.com/questions/11635791/using-uint8array-data-in-webgl-shader

Now you can browse the docs from the local system too. 

It doesn't help that much but still better than nothing (~5% smaller size uncompressed, ~3% compressed).