Post multiplayer patch 4

UPDATE

Change log:
* fixed leaderboard crash
* Performance: Removed build order city references
* fixed: faction diplomacy select city highlights errors

Network issues
(Must start a new save to see the loading issues fixed)
* Fixed build order client read crash
* Fixed: City automation becomes unchecked.
* Fixed: Postal service settings revert to automatic.
* Fixed: Tags are not saved.
* Fixed: Additional resource storage is not saved
* Fixed: City guards are not visible on the ramparts
* Fixed: build orders end up below ground
* Fixed: resource processing off bounds crash
* fixed: end empty net session crash