Remove unused header in MeshShape.
Change SurfaceMeshShape setter's signature, to match its getter.
Add unit tests for accessible and registration of shapes.
Add unit tests for serializing shapes.
Merge branch 'wip/shape-serialize-deserialize' of git.assembla.com:OpenSurgSim into wip/shape-serialize-deserialize
Remove 'setMesh' functions, since those mesh will be set differently.
Merge branch 'wip/shape-serialize-deserialize' of git.assembla.com:OpenSurgSim into wip/shape-serialize-deserialize
Remove non-const 'getRootNode()'.
Revise OctreeDcdContact to use const 'getRootNode()'.
Try to serialize OctreeShape (not yet finished).