Sync MConf at once on update. Also don't transfer 0 money on disband.

src/main/java/com/massivecraft/factions/listeners/FactionsListenerEcon.java

@@ -62,7 +62,9 @@ public class FactionsListenerEcon implements Listener
 		if (oldFaction.getMPlayers().size() > 1) return;
 		
 		// ... then transfer all money to the player. 
-		Econ.transferMoney(mplayer, oldFaction, mplayer, Money.get(oldFaction));
+		double money = Money.get(oldFaction);
+		if (money == 0) return;
+		Econ.transferMoney(mplayer, oldFaction, mplayer, money);
 	}
 	
 	// -------------------------------------------- //

src/main/java/com/massivecraft/factions/update/UpdateUtil.java

@@ -45,6 +45,8 @@ public class UpdateUtil
 		
 		// ... transfer the old uconf data over to the new mconf ...
 		oldConf.transferTo(MConf.get());
+		MConf.get().changed();
+		MConf.get().sync();
 		
 		// ... rename target collections ...
 		Db db = MStore.getDb();