Performance improvements 

"join war" offers only valid if can declare war

Added "Will not be replaced by automated units" unique

By tuvus:
- Defeated civilizations don't use spies
- Spies deselect when moved on map 
- Civs can no longer declare war right after peace with a city-state 
- Moved automation settings to AutoPlayTab

By SomeTroglodyte:
- Fix disband spamming 
- Fix coastal rivers near Rock of Gibraltar 

Turn Privateer's ability into promotion - By SpacedOutChicken