This doesn't really fix anything functionally, but makes the Character window
look nicer. The same (currently unchangable) data is now reflected in the lobby.
The current situation of throw-every-piece-of-logic-into-one-file for each
server isn't working out. So now there is a new ZoneConnection/LobbyConnection
struct that will be delegating tasks to their own Handlers (for example, there
could be a ChatHandler.)
I'm not sure how well this architecture will scale, but it's better than what
we have right now.
