title: number of unread messages from xmpp ios
body: <p>I am developing a chat App using <code>XMPPFrameWork</code>. Everything is working
   perfectly but I'm stuck at obtaining number of unread messages. I've to show on
   <code>tableView</code> the number of messages that are not opened yet. How should I proceed
   , any idea? I tried to show the <code>mostRecentMessage</code> but it didn't work.
   Any help would be appreciated.Thanks.</p>