<ul id="catalogtree" class="list-unstyled">
  <li ng-repeat="node in ::layertreeCtrl.tree.children"
      ngeo-layertreenode="::node" ngeo-layertreenode-map="::layertreeCtrl.map"
      class="panel">
  </li>
</ul>

<ul id="catalogtree">
  <li ng-repeat="node in ::layertreeCtrl.tree.children"
      ngeo-layertreenode="::node" ngeo-layertreenode-map="::layertreeCtrl.map"
      class="panel">
  </li>
</ul>

Add some styling to catalog (accordion)
Add some styling to catalog (accordion)
