Inherit from NodeJS Eventemitter

Controller.js

// EventEmitter pattern: https://www.joyent.com/developers/node/design#EventEmitter

var EventEmitter = require('events').EventEmitter;
var utils = require('utils');

function Controller() {
  if (!(this instanceof Controller)) return new Controller();
  EventEmitter.call(this);
}

utils.inherits(Controller, EventEmitter);