<div class="contact-mosaic">
  <h6>Select a contact</h6>
  <ul class="large-block-grid-5 medium-block-grid-3 small-block-grid-2">
	  <li ng-repeat="contact in vars.contacts" ng-click="ok(contact.address)">
	  	<div class="panel radius text-center">
		    <identicon icon-size="64" hash="contact.hash" title="{{contact.hash}}"></identicon>
		    <h5>{{contact.name}}</h5>
	    </div>
	  </li>
  </ul>
  <a class="close-reveal-modal" ng-click="cancel()">&#215;</a>
</div>
<div class="contact-mosaic">
  <h6>Select a contact</h6>
  <ul class="large-block-grid-5 medium-block-grid-3 small-block-grid-2">
	  <li ng-repeat="contact in vars.contacts track by $index" ng-click="ok(contact.address)">
	  	<div class="panel radius text-center">
		    <identicon icon-size="64" hash="contact.hash" title="{{contact.hash}}"></identicon>
		    <h5>{{contact.name}}</h5>
	    </div>
	  </li>
  </ul>
  <a class="close-reveal-modal" ng-click="cancel()">&#215;</a>
</div>

Add track by index to contact list.
Add track by index to contact list.
