title: Label on Marker doesn't work
body: <p>I've followed some guides but label isn't displayed on my map.
  I use Ionic.
  This is my code (in map controller):</p>
  
  <pre><code>var myLatLng = new google.maps.LatLng(lat,lon);
      var stylesMap = [
          {
              featureType: "poi",
              elementType: "labels",
              stylers: [
                  { visibility: "off" }
              ]
          }
      ];
      var myOptions = {
          zoom: 15,
          center: myLatLng,
          mapTypeId: google.maps.MapTypeId.ROADMAP,
          streetViewControl: false,
          mapTypeControl:false,
          styles: stylesMap
      };
      var map = new google.maps.Map(document.getElementById("gmaps-canvas"), myOptions);
      var marker = new google.maps.Marker({
          position: myLatLng,
          map: map,
          labelContent: "$425K",
          labelAnchor: new google.maps.Point(22, 0),
          labelClass: "labels", // the CSS class for the label
          zIndex: 10000,
          icon: "img/marker/tuseiqui.png"
      });
      google.maps.event.addListener(marker, 'click', function() {
      });
  </code></pre>
  
  <p>And this is the css:</p>
  
  <pre><code>.labels {
   color: red;
   background-color: white;
   font-family: "Lucida Grande", "Arial", sans-serif;
   font-size: 10px;
   font-weight: bold;
   text-align: center;
   width: 40px;     
   border: 2px solid black;
   white-space: nowrap;
  }
  </code></pre>
  
  <p>Marker is correctly viewed on the map, but it doesn't display its label..</p>