Editor: Fixed issue in TransformControls that disabled the controls when deleting an object while rollovering it.

@antoniovazquezblanco could you check that I didn't broke anything?

Maybe the event name could be removed_from_scene instead...

Object3D now dispatching added/removed events when object is removed from it's parent. CSS3D can nore auto-remove DOM elements. See #3575.

Removed setGeometry() and setMaterial() from Mesh. Moved the boundSphere check to Frustum and Raycasting.

Pheww... Glad that I figured this out in time.

Hesitant whether this should be done for everything (only export what isn't default).

This THREE.extend pattern creates misterious issues in V8. Sometimes the methods aren't available for whatever reason. Probably easier to move away of the pattern rather than figuring out what's wong in V8 :/

ObjectLoader/ObjectExporter using matrix instead of position/(rotation|quaternion)/scale. See #3591.

There was no need for the load texture to be static

I haven't tested the problem but it was a bad idea anyways to have start and end have the same referenceObject