Merging with alteredq's branch.

Also some fixes along the way to properly handle vertex colors in loaders.

Many things still broken, but we move forward.

Not tested yet, as the rest of the engine doesn't work yet.

Not sure about Firefox 4/Opera compatibility...

Also cleaned up examples from individual includes, only sandboxes and ubiquity now include individual files.

Added geometries example (need to add Lathe one).
Fixed Cylinder.

No more need for manual update hack.

Problems with keeping constant speed are still there. Added debug particles sampled along the spline - seems problems come from spline, samples have weird distribution.

These are stored in "material.map.sourceFile".

Texture sets needsUpdate to true for <canvas> elements by default (webgl_objconvert_test.html seems to be randomly affected by this).

Added some examples to README.

Object3D::lookAt works! (and Vector3.setRotationFromMatrix too!)

Next: Object3D::translate...

WebGLRenderer checks if texture is power of 2. Throws an error if it's not.

Minor tweaks.

Commented Camera frustrum code. It's not being used, right?

Refactored everything to use CamelCase naming for properties. Plus some smaller fixes here and there.

Went through all examples, all should work.

JSON files exported from Blender / converted from OBJ files still use underscored property names internally. I don't know, should these also be changed?

I don't remember when was the last time I used them. Current Web Developer Tools do this already for you.

Color::updateRGBA ⟶ Color::updateRGB

Added RequestAnimationFrame system to the new examples.

Sound3D ⟶ Sound