title: Get bounds of a google map v3 after zoom change
body: <p>I am trying to get the bounds of a map after the zoom has changed,
  but the zoom_changed event fires <em>before</em> the bounds have been recalculated. So in the zoom_changed handler you get the previous bounds, not the new bounds.</p>
  
  <p>Is there any way how to get the proper bounds on zoom change?</p>