title: Add Marker Icon with Symbol and gif image?
body: <p>Is it possible to use as a Marker Icon a Symbol (SVG) plus a gif image?
  From the docs it's not clear if that's not supported or if there is any trick to achieve that.</p>
  
  <p>I tried this with no success:</p>
  
  <pre><code>marker = new google.maps.Marker({
              position:new google.maps.LatLng(38.742588, -9.230097),
              icon:{
                  path:google.maps.SymbolPath.CIRCLE,
                  scale:1,
                  url: 'http://icons.iconarchive.com/icons/icons-land/vista-map-markers/16/Map-Marker-Bubble-Azure-icon.png'
              },
              draggable:true,
              map:map
          });
  </code></pre>