Magic Cube

Improve scrambling of the Minx'es and the Redi, which in full scramble mode were frequently leaving large corners unscrambled.

Preparation for 'smart scrambling' : introduce the total number of scrambles to the 'randomizeNewScramble' function.

Minor.

Correct the way we overlay our (possibly) better local (i.e. unsubmitted yet or submitted, but not picked up by the 'clean_db' cron job) records on top of the DB records ini the 'Scores' dialog.

Fix the fact that in the last, 'Full Scramble' level, it wouldn't switch on the green light.

Minx'es: fix for the automatic rotations.

Minx'es: fix for the automatic rotations.

Square-2: correct detecting the solved state.

Backing moves: constant angle speed (part 2).

Backing moves: constant angle speed.