title: Leaflet e.target.getLatLng() not working when paired with markercluster
body: <p>I'm using Leafet (django-leaflet to be more precise) and I've been able to form a .on(click) on any marker so that it pans to the marker and zooms in to zoom 10.  This is done by using map.setView(e.target.getLatLng(),10);</p>
  
  <p>However, I have now implemented <a href="https://github.com/Leaflet/Leaflet.markercluster/" rel="nofollow">leaflet markercluster</a> and it seems that the getLatLng() is an undefined function now?</p>
  
  <p>Code without markercluster, which works perfectly:</p>
  
  <pre><code>function onEachFeature(feature, layer) {
  
              layer.bindPopup(feature.properties.name).on('click', clickZoomy);
  
              function clickZoomy(e) {
                if (map.getZoom() &lt; 10){
                  map.setView(e.target.getLatLng(),10) //ZOOM
                } else{
                  map.setView(e.target.getLatLng())
                }};
  </code></pre>
  
  <p>Here is the code I'm using with markercluster:</p>
  
  <pre><code>var multimarker = new L.MarkerClusterGroup();
  
  multimarker.addLayer(L.marker([52.526013, 13.398351],{icon: markHospital})).on('click', clickZoom);
  multimarker.addLayer(L.marker([52.513666, 13.389633],{icon: markHospital})).on('click', clickZoom);
  multimarker.addLayer(L.marker([52.512842, 13.389277],{icon: markHospital})).on('click', clickZoom);
  
  map.addLayer(multimarker);  function clickZoom(e) {
      map.setView(e.target.getLatLng(),10)};
  </code></pre>