[Freeciv-Dev] (PR#2641) islands from the client's point of view

["Mike Kaufman via RT" <rt@xxxxxxxxxxxxxx>]

here is the [long] awaited patch for server-controlled
pplayer-point-of-view continents. It accomplishes this via a
packet_continent_info packet which the server sends to the client when it
needs to update numbering. The client itself has access to a recursive
continent numbering function, so the server only needs to send one tile of
a continent for all the tiles on the continent to be renumbered.

there is one slight behavior change: if a player establishes a a trade
route with another player and that player doesnt know the caravan's
homecity, then that city is shown to that player. From Davide's
informational standpoint this is good, and it's necessary to maintain
continental integrity.

I've attached two test savegames to test the patch. log in as 'kauf' and
'kauf2'

-mike

island5d.diff.gz
Description: island5d.diff.gz

traderoute1.sav.gz
Description: traderoute1.sav.gz

transform2.sav.gz
Description: transform2.sav.gz