Magic Cube

Bugfix for a crasher

Fix movements of objects - before it really worked only when an object's FOV was about 60 degrees.

Do not block the UI if, for some reason, some of the effects failed to get added to the Queue. Just fail to rotate.

Bugfixes as a result of the Samsung Galaxy J4+ investigation:

1) By default, switch off transform feedback in the main program.
Create a new API 'needTransformFeedback()' to call if someone still needs TF in the main program.
2) lower the default max number of vertex effects to 30....

Beginnings of Megaminx & Gigaminx

We now have much more effects possible, 100 by default - it is no longer needed to call setMax().

Do use 61 vertex effects (with the advent of Kilominx)

Progress with the Kilominx - rotations.

if a user has a verified name, set it as a GoogleAnalytics UserId

Fixes for the Rex Cube (still doesn't work)