Magic Cube

Minor tweaks to the 'Prev' buton in Solving state;
Relax requirements in the Manifest - now only 'android.hardware.faketouch' supporting device is required, i.e. something that supports basic point-click-drag-unclick. No need for full 'android.hardware.touchscreen' thing with its multitouch silliness.

Minor.

Add a 'withdraw move' button to the Solving UI state.

Bugfix

Minor

Make chances to randimoze a given row when scrambling dependant on the type of Object.

The point: in case of the Cube, all rows should have equal chances. In case of the Pyraminx, the smaller the row, the smaller the chance should be. In particular the trivial 4 corners of the tetraherdon should have a very small chance to be selected.

Bugfix.

Each object size now has its own number of levels (not always 18!)

Reorganize UI of the Play state.

The 3x3x3 Solver finished - here the last piece of work, locking the centers of the 3x3x3 cube in place so that RubikStateSolver's color picker cannot change them ( the CUBE3 solver assumes this )