4.18.8
Remove building-improvement if the building is no longer buildable
By RobLoach:
- Add 'when not stacked with a [mapUnitFilter] unit' Conditional
- Fix relevent Civ for within tiles Conditional
- City Screen: Display Stockpile Amount Available for Cost
Display promises in diplomacy overview for human players - By unciv-loof
Fix battle notification translations - by dadadnet (new contributor!)