Object3D: Added traverseVisible.
WebGLRenderer: Removed scene.__webglSprites.
WebGLRenderer: Removed scene.__webglFlares.
Updated builds.
WebGLRenderer: Removed autoUpdateObjects property.
WebGLRenderer: Code clean up.
WebGLRenderer: Public initWebGLObjects to private initObjects.
Updated builds.
Object3D: Fixed traverseVisible.
Projector: Switch to object.traverseVisible and code clean up.
Updated builds.