Magic Cube

Make the Ultimate standard size (dodecahedron size=2, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

Make the Skewbs standard size (cube size=2,3, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

Make Rex standard size (cube size=3, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

Make Jing standard size (tetra size=2, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

Make Ivy standard size (cube size=2, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

Make Helicopter standard size (cube size=3, i.e. equal to numLayers so that DIST2D and DIST3D are standard)

On second thought, come back to Vector. The problem: before we had the potentially blocking function 'effectFinished' inside our synchronized block.

1) add missing call to BlockController.onPause() / onResume() to the Tutorial activity
2) rearrange BlockController's error reporting to make the case where the MessageSender thread has died separate
3) in such case, resurrect the thread
4) simplify and harden the EffectMessageSender

Correct height of the tutorial dialog.

Add Mirror 2x2 tutorials.