title: Response::json() - Laravel 5.1
body: <p>I am trying to <code>return Response::json('data', $request);</code> however, I am getting an error:</p>
  
  <blockquote>
    <p>FatalErrorException in ProjectsController.php line 74:
    Call to undefined method Illuminate\Http\Response::json()</p>
  </blockquote>
  
  <p>Where is the <code>Response::json()</code> is located? What am I doing wrong?</p>