[Freeciv-Dev] transform to ocean

[Thue Janus Kristensen <thue@xxxxxxx>]

This patch does:
-Remove rivers from tiles transformed to ocean.
-Disallow transforming below an existing city
-Reset the activity of settlers transforming to ocean on a square when
building a city on top
-And then making this patch I once again fell for the misuse of the
parameters in create_city() as iterators, so I changed them!

-Thue

transform.diff
Description: Text document