team victory conditions

[Cainehill]

For one thing, it'd allow the computer AI to be informed that there had been an alliance or treaty when someone goes AI. Currently it's a terrible mess when a neighbor who had a treaty goes AI.

It'd also allow people to propose treaties (NAPs, etc) in-game and be reminded of them. Of course, if Illwinter would simply output all messages to a text file for the game, people could at least review what was sent in-game.

That, at least, would be pretty trivial to implement : new turn comes in, the messages get appended to a log file in the user's game directory.