Block external access to unsupported saveConfig() method.

Essentials/src/com/earth2me/essentials/Essentials.java

@@ -244,6 +244,11 @@ public class Essentials extends JavaPlugin implements IEssentials
 		}
 	}
 	
+	@Override
+	public void saveConfig() {
+		// We don't use any of the bukkit config writing, as this breaks our config file formatting.
+	}
+	
 	private void registerListeners(PluginManager pm)
 	{
 		HandlerList.unregisterAll(this);