message: Fix Harappan collapse
diff: @@ -813,7 +813,7 @@ class RiseAndFall:
  sta.completeCollapse(iGreece)
  if iGameTurn == getTurnForYear(-1300) + utils.variation(10):
  - if not pHarappa.isHuman():
  + if pHarappa.isAlive() and not pHarappa.isHuman():
  sta.completeCollapse(iHarappa)
  #Colonists
  