code: function publish(event) {
  	/*jshint validthis: true */
  	if (DEBUG_DISPATCHER) log.info('PUBLISH: ' + event);
  	if (!event) {
  		return;
  	}
  	redisPublisher.publish(event, '');
  	return this;
  }
docs: Publishes an event across the cluster. All dispatchers that are listening for this event will notify their attached contexts.
  @param event A string name for an event, such as "org_14301" to be notified whenever that org is updated.
  @returns {*} The dispatcher, for fluent calls.