Refactored BaseObject3D to Object3D

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Merge branch 'master' into scenegraph

Conflicts:
	src/rajawali/scene/RajawaliScene.java
	src/rajawali/visitors/RayPickingVisitor.java


Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>