- Builder enhancements:
 - Materials can be added to it as regular objects, as jsonified objects (e.g. from worker) and as clone instruction (map of property and value)
 - Separated mesh processing from material processing
 - Builder no longer defines default materials. This is no the responsibility of the user (loader)
- WorkerSupport is now able to load arbitrary js files into Blob used to create the Worker (as exemplary shown and used in MeshSpray)
- Updated documentation

FBXLoader: support different framerates

distanceToManhattan() -> manhattanDistanceTo()

remove inline fn in Box3.expandByObject to reduce GC

GLTFLoader: Fix typo in skin/joint traversal.

ObjectLoader lacking support for some geometries, Docs update

GLTFLoader: Reuse file loader

FBXLoader: switched default material type to Phong

GLTFLoader: Clean up node pre-processing.

Check for window object when instantiating the WebVRManager

add rotateOnWorldAxis method to Object3D

Curve: Added optionalTarget to .getPoint() and .getPointAt()

GLTFLoader: More robust de-duping of mesh/node names, morph target fixes, etc.

FBXLoader: Removed envMapIntensity parameter

FbxLoader base64 image parsing error fix update

GLTFLoader: Report missing buffer dependencies.

GLTFLoader: Reuse texture loader