- Added a direct addToClass/removeFromClass API for use in noise-based
maps.
- Raised the sea level in the game world so water can be deeper, and set
it to 0 in script coordinates.
- Moved some class-related utility functions to rmlibrary.js.
- Modified sample maps in light of these changes.
- Committed noise class which I forgot last time.
This was SVN commit r4659.
