I think.

To be used like this:

python convert_obj_three.py -i lucy100k.obj -o Lucy100k_slim.js -a center -s flat -x 100

It should work also for morph vertices.

Added support for empty objects and meshes without geometries to Blender scene exporter and SceneLoader.

Changed so objects added in sceneB in sceneA.addChild( sceneB ) actually propagates all the way up to sceneA, so they become rendered.

Fixed bug related to morphColors in JSONLoader. Changed reading of custom attributes from geometry group to material to let material instead of geometry rule of the source of data.

Added Trident to Geometry example. Found out that handling scene.objects from API wise is a bit confusing (childs are there too).

Fixed some bugs around setting uniforms and morph targets. Added a small feature to custom attributes to allow re-use.

It can be added to the scene or as a child of any Object3D.
It is specially useful for debugging purpose.
The Trident name is borrowed from the Away3D project http://away3d.com/livedocs/3.6.0_lib/away3d/primitives/Trident.html

Still there are some new objects created per frame there.

Just a single callback is now passed  to loader.load( "scene.js", callbackFinal ) - callback which is called when everything from the scene was already loaded.

If you want to use also callbacks for initialization of procedural synchronously created elements, you can set property of loader:

loader.callbackSync = function( result ) { ... }

If you want to get callback for load progress, set:

loader.callbackProgress = function( progress, result ) { ... }

Also added per scene creation of collision systems (it used to be singleton).