Magic Cube

Object node: size of screenWidth.

Remove the 'MAIN' state.
Fix one crasher with two-fingered dragging in the View.

Improve rotations of the Pyraminx; synchronize begin/add/finish Rotation in the RubikObject (now it is possible to begin new rotation when an old one didn't finish yet!)

Progress with dragging.

Simplify dragging. Now there's only 1 Quat, rather than the old way with two (Accumulated, Current).

Further improve rotations of a Object layer - make them independent of physical screen size (now it depends on the angle of rotation and, if that's 0, on the speed (in inches of second) of the finger swipe done by the user.

Improvements for the way we rotate layers of Objects. (take the speed into account - so even if we rotated a layer of a Cube to less than 45 degrees, but we did it fast, do a 90 degree rotation!)

Read the meshes from .dmesh files (rather than compute them dynamically).
This (along with single-mesh mode) hopefully makes the rendering much faster, while keeping the time needed for Object Change low.

The only downside: this increases the size of the release APK from 6 MB to 9.6 MB.

Speedup for rendering: cubes 2,3 contain better quality cubit faces (more vertices) than cubes 4,5.

Bugfixes.