Fix msn login and offline message support.

src/net/java/sip/communicator/impl/protocol/msn/OperationSetBasicInstantMessagingMsnImpl.java

@@ -108,7 +108,7 @@ public void removeMessageListener(MessageListener listener)
      */
     public boolean isOfflineMessagingSupported()
     {
-        return false;
+        return true;
     }
     
     /**
@@ -313,6 +313,42 @@ public void instantMessageReceived(MsnSwitchboard switchboard,
 
             fireMessageEvent(msgReceivedEvt);
         }
+        
+        /**
+         * Received offline text message.
+         * 
+         * @param body of message
+         * @param contentType of message
+         * @param encoding of message
+         * @param displayName
+         * @param from the user who sent this message
+         */
+        public void offlineMessageReceived(String body,
+                                           String contentType, 
+                                           String encoding,
+                                           MsnContact contact)
+        {
+            Message newMessage = 
+                createMessage(body.getBytes(), contentType, encoding, null);
+
+            Contact sourceContact = opSetPersPresence.
+                findContactByID(contact.getEmail().getEmailAddress());
+
+            if(sourceContact == null)
+            {
+                logger.debug("received a message from an unknown contact: "
+                                   + contact);
+                //create the volatile contact
+                sourceContact = opSetPersPresence.
+                    createVolatileContact(contact);
+            }
+
+            MessageReceivedEvent msgReceivedEvt
+                = new MessageReceivedEvent(
+                    newMessage, sourceContact , new Date() );
+
+            fireMessageEvent(msgReceivedEvt);
+        }
 
         public void initialEmailNotificationReceived(MsnSwitchboard switchboard,
                                                      MsnEmailInitMessage message, 

src/net/java/sip/communicator/impl/protocol/msn/ServerStoredContactListMsnImpl.java

@@ -859,6 +859,9 @@ public void contactListInitCompleted(MsnMessenger messenger)
             // if we have received status before we have inited the list
             // sho them correctly
             parentOperationSet.earlyStatusesDispatch();
+            
+            // retreive offline messages
+            msnProvider.getMessenger().retreiveOfflineMessages();
         }
 
         public void contactStatusChanged(MsnMessenger messenger,