Multi-server sync

[VanessaE]

A feature is desperately needed where Xban mod can coordinate between multiple servers, keeping their ban/xban lists in sync. If I ban someone on one server, I would like other servers in some configurable "network" to be signaled, and enact that ban also. The reverse should also be done (perhaps with a special command, so that it's possible to unban someone from just one server).

Maybe they could all just be configured to use some common file to pass such messages along (assuming mod security doesn't get in the way of that)