/**
  * {@inheritdoc}
  * 
  * @param ConsoleOutput $stdout
  * @param ConsoleOutput $stderr
  * @param ConsoleInput $stdin
  */
 public function __construct($stdout = null, $stderr = null, $stdin = null)
 {
     parent::__construct($stdout, $stderr, $stdin);
     $this->ProcessManager = new Spork\ProcessManager();
 }