title: How do I zoom an MKMapView to the users current location without CLLocationManager?
body: <p>With the <code>MKMapView</code> there's an option called "Show users current location" which will automatically show a users location on the <code>map</code>.</p>
  
  <p>I'd like to move and zoom to this location when it's found (and if it changes).</p>
  
  <p>The problem is, there doesn't appear to be any method called when the user location is updated on the <code>map</code>, so I have nowhere to put the code that will <code>zoom/scroll</code>.</p>
  
  <p>Is there a way to be notified when an <code>MKMapView</code> has got (or updated) the user location so I can move/zoom to it? If I use my own <code>CLLocationManager</code> the updates I get do not correspond with the updates of the user marker on the map, so it looks silly when my map moves and zooms seconds before the blue pin appears.</p>
  
  <p>This feels like basic functionality, but I've spent weeks looking for a solution and not turned up anything close.</p>