rename DemoTruck to AttackSuicides

generalize move to add Aircraft support
give it a description
don't require Explodes as it is just a soft dependency
use a regular self kill

OpenRA.Mods.Common/UtilityCommands/UpgradeRules.cs

@@ -2883,6 +2883,12 @@ namespace OpenRA.Mods.Common.UtilityCommands
 						node.Key = "WithDockedOverlay" + node.Key.Substring(18);
 				}
 
+				if (engineVersion < 20160116)
+				{
+					if (node.Key == "DemoTruck")
+						node.Key = "AttackSuicides";
+				}
+
 				UpgradeActorRules(engineVersion, ref node.Value.Nodes, node, depth + 1);
 			}
 		}