message: bump namespace for extdisco (fix
diff: @@ -133,11 +133,13 @@ jsxc.webrtc = {
  },
  getIceServersByExternalDisco: function() {
  + var self = jsxc.webrtc;
  +
  var iq = $iq({
  type: 'get',
  to: jsxc.xmpp.conn.domain
  }).c('services', {
  - xmlns: 'urn:xmpp:extdisco:1'
  + xmlns: self.CONST.NS.EXTDISCO
  });
  jsxc.xmpp.conn.sendIQ(iq, parseExtDiscoResponse, function(err) {
  