Make missing joints a console warning rather than a showstopper. Often models will still be loadable / usable.

Conflicts:
	examples/js/loaders/VRMLLoader.js

- Fixed loading indexed facesets, something went wrong when trimming the strings
- Loading the geometry of an indexed faceset is now (in basic form) complete

Scenes tend to be bigger than what a hash can handle.

I tried using document.stylesheets but there is no event listener for then a element.href is done so it would access the css values too soon.

- Improvements when it comes ot USE statements.
- Transforms and scale get applied to the wrong nodes, because the parsing is unaware of in which node it currently is.

r61 Removed setGeometry() and setMaterial() from Mesh.