title: How to drop 500 pins at once on a MapView
body: <p>I have around 500 pins I would like to display on a MKMapView.</p>
  
  <p>However, when I call <code>mapView.addAnnotations(places)</code> (<code>places</code> being an array of MKAnnotation objects), the pins slowly drop one by one.</p>
  
  <p>I would like to either :</p>
  
  <ul>
  <li>drop all pins at once at load</li>
  <li>cancel the drop animation altogether</li>
  </ul>
  
  <p>Is this possible ?</p>