Magic Cube

Improve rotations of the Pyraminx.

Port changes to ObjectList from the deferred-jobs branch.

Correct RubikCube for the new library.

Progress making it possible to apply Vertex Effects only to some Components of a Mesh.

1) Cube: convert it to the latest library. Main difference: objects are rendered better, individual cubits have rounded corners.
2) Examples: some adjustments to MeshJoin & Predeform
3) Library: fix a bug in main_vertex_shader's 'degree' function, which didn't work proprely in case of a vertex which was exactly at the center (i.e. vector PS was zero)

In library: allow a mixture of a deep and shallow copy of a Mesh ( mVertAttribs1 might be copied deeply or shallowly, mVertAttribs2 are always copied deeeply).
Port RubikCube to the new library.

Fix for the next crash seen in the field.

Fix for the next crasher from the field.

Fix for the previous fix :)

Fix a potential crasher ( do not set up a callback for end of rotation effect on the very first cubit that belongs to a rotation if all belonging cubits have not been set up yet )