CHG: CHange climate (make water) restricted to 1 tile for networking non-admin players

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7275 8aca7d54-2c30-db11-9de9-000461428c89
FIX: (DrSuperGood) overflow by intransit goods

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7276 8aca7d54-2c30-db11-9de9-000461428c89