Distorted Android

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.

Bugfix for Predeform app.

1 more fix for the Predefrom app and preapplying Vertex Effects to a 1-component Mesh works :)

Progress with the Predeform app; deepCopy for the Meshes; various fixes.

Progress with the Predeform app.

Progress with Predeform: UI for the list of Vertex effects to preapply.

Progress (?) with Predeform: give up trying to render the Mesh in Activity1.

Progress with Predeform.

Beginnings of a new 'Predeform' app which tests pre-applying a queue of Vertex Effects to a (single?) Mesh.
So far just a copy of Inflate app.