CmdRank changed to allow faction change.

Admins can now change a players faction when doing /f rank

src/com/massivecraft/factions/event/EventFactionsMembershipChange.java

@@ -57,7 +57,10 @@ public class EventFactionsMembershipChange extends EventFactionsAbstractSender
 		// Join
 		JOIN      (true),
 		CREATE    (false),
+		// Leader is not used, but temporarily kept to avoid other plugins crashing
+		@Deprecated
 		LEADER    (true),
+		RANK      (true),
 		
 		// Leave
 		LEAVE     (true),