GGO Part 4: The Calm

- Added Steel Shore, Rapture Ramp & ???
- Removed Fabulous Floor, Barack's Boat & Portal's Remains
- Changed Wanderer's Warehouse to Destabilizing Depot
- Added mat siphon
- Removed hideables

Challenges:
- visit the tall traveler
- regain 25 health or shield at steel
- reach the top of the moyai stack
- get an elim with a formerly unreleased gun