Nickname retreiving

Fixed bug where the new value was the old one and the old value was the new one
which caused not working rename event

src/net/java/sip/communicator/service/contactlist/event/MetaContactRenamedEvent.java

@@ -35,7 +35,7 @@ public MetaContactRenamedEvent(MetaContact source,
      */
     public String getNewDisplayName()
     {
-        return (String)getOldValue();
+        return (String)getNewValue();
     }
 
     /**
@@ -45,6 +45,6 @@ public String getNewDisplayName()
      */
     public String getOldDisplayName()
     {
-        return (String)getNewValue();
+        return (String)getOldValue();
     }
 }