Had a bit of time today and worked on supertux:

Had a bit of time today and worked on supertux:

- Commited some old changes I had lying around here
  (improved mrtree images? and improvement to the collision grid which still
   isn't enabled by default)
- Did a bit more cleanups (eleminated defines.h and renamed scene.* to
    player_status.* as that is waht ti really contained)
- Cleaned up PlayerStatus code a bit (refactored loading/saving out of worldmap
    into PlayerStatus)
- Implemented LevelTransformer interface and did a first test with a flip level
  transformer
- Removed explicit LevelEndSequence attribute (can be done by placing aprorpiate
    SequenceTrigger objects)

SVN-Revision: 2293