- Fixes hang when building a bridge
 - Defaults to slightly larger grids to keep some space for industry
 - People are slower to migrate now, changes are more smooth preventing
   sudden city collapse
 - Growth should now no longer slow down in late game

- Water tiles are no longer considered when finding a building to remove.
- Removal is now random instead of deterministic.
- Added option to bias building removal to spherical towns. (makes towns smaller instead of ghost towns)
- Fixed bug that would make the script ignore towns without industry when finding a building to remove.

Fixes #1

Fixes #2