title: Equivalent of getBoundsZoomLevel() in gmaps api 3
body: <p>In API v2, the map object had a handy method <a href="https://developers.google.com/maps/documentation/javascript/v2/reference#GMap2" rel="noreferrer">getBoundsZoomLevel()</a>. I used it to get the zoom level which fits the bounds best, then manipulated this optimal zoom level somehow and finally set the desired zoom level.</p>
  
  <p>I cannot find similar function in <a href="https://developers.google.com/maps/documentation/javascript/reference" rel="noreferrer">API v3</a>. (What a continuous frustrating experience when moving from v2 to v3)</p>
  
  <p>Do I really have to use <code>map.fitBounds()</code>, <code>map.getZoom()</code>, manipulate and <code>setZoom()</code> again? That's really stupid!</p>