Attempt to programmatically catch the 'cube is sometimes not drawn' bug and report it to my server.
New 'tutorial' activity.
Rename some classes.
Object node: size of screenWidth.
Progress with dragging.
Convert the PostRender to a PreRender, called before we render.This makes more sense as this way things are prepared for the very first render.
More progreess porting RubikCube.