Sorry @elephantatwork, I think this logic should be outside.

Added texture and image export to the Object3D.js. Works with the scene
export inside the editor.

Extended the .toJson() to safe the texture inside the .json file as a
base64 format.

Big images >2048 are converted to jpg with to keep the size smaller.
For others you can still use the alpha channel of pigs.

Previously, Three.JS would IGNORE imported castShadow and receiveShadow settings on objects. This setting is now corrected.

ambientOcclusion -> ao per @WestLangley feedback here: https://github.com/mrdoob/three.js/pull/6263#issuecomment-83794671 #2

A very small change that allows text geometry to be loaded with the scene.  Here is an example: http://datable.net/WebGL/HW3/

add Line.mode for deserialize THREE.Line objects