* Fixed method TOctreeNode.Inside when using bounding box.
* TOctree.CheckCollisions checks if objects have OnCollision assigned now.
* TObject3D.SetBoundingBox sets Radius if not set.
* Fixed TObject3D.CheckCollision.
* TObject3D.RenderBoundingVolume now renders only one of the volumes (sphere or
box) depending the value of UseBoundingBox.
* Documentation updates, mostly collision related.