message: Made scenario based setup more robust
diff: @@ -325,8 +325,12 @@ def scenarioStartYear():
  def scenario():
  - if player(iEgypt).isPlayable(): return i3000BC
  - if player(iArabia).isPlayable(): return i600AD
  + """Cannot use civ constants because slots maybe not be set up yet."""
  +
  + if player(0).isPlayable(): # Egypt
  + return i3000BC
  + if player(18).isPlayable(): # Arabia
  + return i600AD
  return i1700AD
  