/// <summary>
 /// Constructor
 /// </summary>
 /// <param name="con">The XmppClientConnection on which the RosterManager should send the packets</param>
 public WSRosterManager(XmppWebSocketConnection con)
 {
     m_connection = con;
     m_connection.OnRosterStart += new ObjectHandler(m_connection_OnRosterStart);
     m_connection.OnRosterEnd   += new ObjectHandler(m_connection_OnRosterEnd);
     m_connection.OnRosterItem  += new XmppClientConnection.RosterHandler(m_connection_OnRosterItem);
 }
 public WSPresenceManager(XmppWebSocketConnection con)
 {
     m_connection = con;
 }