Solved concurrency crashes due to players keypress-activating disabled buttons

'liberate city and resurrect civ' no longer crashes

AI no longer purchases non-contiguous tiles

City name translation for conquered popup does not get icon

Promotion picker allowing picking chains in one go - By SomeTroglodyte

Fixing workers dying in mountains bug for Carthage - By random271

Check for trigger uniques when starting and recaluating population - By SeventhM