mrdoob/three.js — pull request #4177 by philkingston (2013-12-05 12:53:56+00:00)
Title: Add the layer attribute to a node element

I've been using the ColladaLoader class to import dae files, but have struggling for a way to classify parts of the models. The Collada specification allows a 'layer' attribute on the node element, so I have implemented the code to pass this through to the three.js Node object.