Reduced (uncompressed) save file size by 15%, with 15% pending later versions

Multiplayer improvements:
- Add descriptor (you/friend name/unknown) to current player
- Auto-download missing mods when joining multiplayer game
- Can force-resign any human, if 'admin' spectator or player is inactive for 48h
- Disable resign button on games where it's not your turn

Fixed city console rename to set exact text (not quoted/lowercased)

Conditional that tests if a mod is enabled - by @SomeTroglodyte