Improve UI proportions on squarish screens.
dialogs: license.
Downloaded Objects more or less work now.
Refactor RubikObject in preparation for creating RubikObjects from DownloadedObjects.
Re-organize tutorial list so that we can pull this one from JSON files.
Remove 3 out of 4 object icons.
Move the 'currObject' from RubikScreenPlay (WTF?) to RubikObjectList.
In the 'magic' app, ObjectType is now only used in RubikObject and RubikObjectList classes and nowhere else.This is a major step towards being able to download objects from an online repository.
Simplification
Correct height of the tutorial dialog.
Make it impossible to launch more than one Tutorial screen at a time.
Rename packages
Speedup: in the tutorial dialog, only create the current tab +-1.
Put new things to the StackFrame.
Progress creating the Tutorial Dialog.