This reverts commit de6d62bf.

(Phewww!) I'm sure there are still things I missed...

ColladaLoader was not setting the emissive color property for common shader materials. It was also not setting the emissive property for an emission texture to all 1's.

Some weird warning saying THREE.REVISION isn't defined :/
Need to improve this build.py some day...

Also, checking if the object is already a children is a bit redudant (the next lines code takes care of that indirectly).

Minor optimizations and tweaks to make it a better example. Removed extraneous work in setting up the animation loop. Added support for array-style target addressing according to COLLADA spec. Added support for matrix transform updates. Added support for hierarchical animations as defined in COLLADA spec (Credit to ekitson).

Modified scene loader to allow objects to specify matrix directly instead of only rotation, scale, and translation

Commented out WebGLRenderer console.log (not really useful anymore) and added new console.logs on all renderers (hopefully more useful).