TOW improvements and updated the index example to use TOW and test it. It made a very big difference and is almost ready to use for feature focus, or 3D tooltips.
* TOW will automatically catalog the COLLADA scenes as the load for quick reference via TOW.ColladaScenes
* TOW calculates the new container height and width when using TOW.changeContainerById
* TOW addLight returns the instanced light for cascading changes like position.set etc
* TOW fixed unhideSceneMesh bug