[Freeciv-Dev] Watchtowers?

[Per Inge Mathisen <per@xxxxxxxxxxx>]

I suggest we add watchtowers (increased sight range when in a fortress) to
the default ruleset. Mostly because this way we get to test this code, and
it doesn't bitrot. If we decide to not use it, I would favour removing it.

(Yeah, I know, who builds fortresses anyway?)

  - Per