title: Google maps android on cluster items click not working
body: <p>In my google maps fragment, 
  I used this to add my item as clusters</p>
  
  <pre><code>mClusterManager = new ClusterManager&lt;ContactInfo&gt;(getActivity(), googleMap);
  mClusterManager.setOnClusterClickListener(this);
  mClusterManager.addItem(myItem);
  </code></pre>
  
  <p>Now, I can manage to set onClusterClickListener by </p>
  
  <pre><code>mClusterManager.setOnClusterClickListener(this);
  </code></pre>
  
  <p>By using the above code, I can detect when I click those clusters,
  However, when I click those seperate markers, this does not work. </p>
  
  <p>How to detect those seperate markers I added to clusterManager?</p>