Updated more examples that relied on geometry.materials.
BinaryLoader return materials in callback too.
Updated ColladaLoader to geometry.materials-less setup.
Updated more examples to geometry.materials-less setup.
Updated another example to geometry.materials-less.
Also, removed webgl_trackballcamera_earth as there is already a example showing the usage and another one using this scene.
Updated HemisphereLightHelper using new MeshFaceMaterial.
Fixed materials changing in cars examples.
Fixed cars in dynamic cube map example.
Editor: Added some handy links.
Merge remote-tracking branch 'alteredq/facematerial-refactoring' into dev
Fixed SceneLoader and scene example.
Simplified scene example.

Now we can finally mess with car materials directly in the scene file.
Updated minecraft demos.
Merge remote-tracking branch 'alteredq/facematerial-refactoring' into dev
Docs: Updated CubeGeometry.
Fixed loading of models which were using normalmap materials inside MeshFaceMaterials.
Added GeometryUtils.removeMaterials

This allows to work around removed CubeGeometry sides functionality.
Fixed JSONLoader example material palette and some more examples cleanup.
Removed remaining traces of geometry.materials
Softer shadows in Minecraft AO example.