If a session was terminated because of a error response returned to a
  request (as specified by RFC 5157), the nua_i_state event was not sent.
  
  Even with this fix, if a dialog has multiple usages, the event usages can be
  terminated without any indication to the application.



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7816 d0543943-73ff-0310-b7d9-9358b9ac24b2