Toyland changes from 0.6 to 0.7:

- the new state CPU (registered version only)
- multiple undo / redo (up to 9 moves)
- test mode: you no longer play your own levels in play mode so you don't
  lose your changes when finishing the level and it is easier to manage
  private levels.
- quicksave / quickload: set a marker at a position in a level and quickly
  return to that position.
- new options: dialogs gives you the chance to disable startup dialogs.
- memory / resource management: fixed memory leaks.
- undo in CHESS: fixed repainting of objects.
- minor add-ons / features