Distorted Android

Improve the architecture of the Rubik App: new RubikCube class.

Improve the Rubik App - rotation works now.

Improve the Rubik App - beginnings of rotation.

Improve the Rubik App.

Improve the Rubik App.

Improve the Rubik App.

Improve the Rubik App.

Fix the PINCH effect in the Earth App.

Make the 'PINCH' effect fully 3D (define its acting line in terms of (latitude,longitude) angle pair).

Still, something is not fully working in the Earth app with the effect - investigate.

Finish the Rubik app.