Fix the detection of the solved state.
IAP part 6: new 'Present' object effect.
effects,fastscramble,objectchange: license.
Minor.
Fix setDefaultRotation() when changing an object; do it at exactly the right time when the 'old' object has already disappeared, but the new hasn't been attached to the Nodee yet.
Fix problems with TwistyObjectNode 'object scale' property.Now this property is not part of the Node at all, but its initial value passed to the object in its constructor.
Major change: separate the notion of a TwistyObject and its Node. Now,
1) the Node stays when we change objects (this makes transitions faster)2) it's possible to just create an Object without adding it to the Screen (now app needs to explicitly create the Node and add it to its Screen itself)
Relax objectlib's requirements: it can be displayed not only on top of a DistortedScreen, but any DistortedFramebuffer.
progress with off-center objects.
1) introduce possibility to move objects, i.e. display them not in the middle of the screen (not fully functional yet)2) do away with unneeded any more interface 'EffectController' - since ObjectPreRender is the only implementation now.
Move yet more code to objectlib.