rnd-20091024-3-src

rnd-20091024-3-src
* most important parts of native Supaplex engine integration working:
  - native Supaplex levels can be played in native Supaplex engine
  - native Supaplex level/demo files ("*.sp" files) can be re-played
  - all 111 classic original Supaplex levels automatically solvable
  - native Supaplex engine can be selected and used from level editor
  - logic of re-playing Supaplex demos migrated to R'n'D tape logic