Switch GeoIP database from MaxMind to IP2Location.

The IP2Location data is licensed under CC BY-SA, which
allows us to distribute the database with releases.

OpenRA.Game/Server/Server.cs

@@ -149,7 +149,8 @@ namespace OpenRA.Server
 
 			randomSeed = (int)DateTime.Now.ToBinary();
 
-			GeoIP.Initialize(settings.GeoIPDatabase);
+			if (type != ServerType.Local && settings.EnableGeoIP)
+				GeoIP.Initialize();
 
 			if (UPnP.Status == UPnPStatus.Enabled)
 				UPnP.ForwardPort(Settings.ListenPort, Settings.ListenPort).Wait();