Fix major glitches in Mattie's world.

[awcTSC8VgRr7cEJpgRN3]

I expected addon repo to be a snapshot of addon src or something, but I can't handle those messy blobs with git, so leave the changes here.

• There are four "Super Secret Bonus Levels" in the worldmap, 16dfa03 is required. But I think it would be better to fix the behavior of wait() instead of removing it.
• I roughly increased the height of the scripttrigger so that Tux could finish the level when it fell, and changed the direction of the wood's movement to make sure the crystal was falling downwards.
• The following issues is about broken tiles etc.
  • Broken graphics of worldmap in Mattie's World addons#25
  • Mattie's Iceberg issue bonanza #20