Hide repo star control when not logged in

Fixes #1756

static/directives/repo-list-table.html

@@ -24,7 +24,8 @@
     </td>
     <td class="hidden-xs"
         ng-class="tablePredicateClass('is_starred', options.predicate, options.reverse)"
-        style="width: 70px">
+        style="width: 70px"
+        ng-if="loggedIn">
       <a ng-click="orderBy('is_starred')">Star</a>
     </td>
    </thead>
@@ -48,9 +49,10 @@
          <span class="strength-indicator" value="repository.popularity" maximum="maxPopularity"
                log-base="10"></span>
        </td>
-       <td>
+       <td ng-show="loggedIn">
         <span class="repo-star" repository="repository"
-              star-toggled="starToggled({'repository': repository})"></span></td>
+              star-toggled="starToggled({'repository': repository})"></span>
+       </td>
      </tr>
    </tbody>
   </table>

static/directives/repo-star.html

@@ -1,5 +1,5 @@
 <span class="repo-star-element">
   <i ng-class="repository.is_starred ? 'starred fa fa-star' : 'fa fa-star-o'"
-     class="star-icon" ng-click="toggleStar()">
+     class="star-icon" ng-click="toggleStar()" ng-show="loggedIn">
   </i>
 </span>