message: Fix WebRtcConnection close by updating publishers immediately
diff: @@ -227,11 +227,11 @@ exports.ErizoJSController = function (threadPool, ioThreadPool) {
  }
  publisher.removeExternalOutputs().then(function() {
  closeNode(publisher);
  + delete publishers[streamId];
  publisher.muxer.close(function(message) {
  log.info('message: muxer closed succesfully, ' +
  'id: ' + streamId + ', ' +
  logger.objectToLog(message));
  - delete publishers[streamId];
  var count = 0;
  for (var k in publishers) {
  if (publishers.hasOwnProperty(k)) {
  