เบรนเพล็กซ์

- added tricks section with playback capability
- fixed a crash while checking whether Murphy is inside a port
- fixed Murphy playing the eat-on-hold animation when no object was eaten
- fixed Murphy sleeping without an obstacle to lean against
- fixed enemy behavior diverging after loading a saved supaplex game
- fixed gravity switches in Supaplex levels and restored games
- fixed crashes and stale progress when loading changed level sets