fix(CSP): avoid inline execution of javascript in choices template.

src/bootstrap/choices.tpl.html

@@ -4,9 +4,9 @@
   <li class="ui-select-choices-group" id="ui-select-choices-{{ $select.generatedId }}" >
     <div class="divider" ng-show="$select.isGrouped && $index > 0"></div>
     <div ng-show="$select.isGrouped" class="ui-select-choices-group-label dropdown-header" ng-bind="$group.name"></div>
-    <div id="ui-select-choices-row-{{ $select.generatedId }}-{{$index}}" class="ui-select-choices-row" 
+    <div id="ui-select-choices-row-{{ $select.generatedId }}-{{$index}}" class="ui-select-choices-row"
     ng-class="{active: $select.isActive(this), disabled: $select.isDisabled(this)}" role="option">
-      <a href="javascript:void(0)" class="ui-select-choices-row-inner"></a>
+      <a ng-click="$event.preventDefault()" class="ui-select-choices-row-inner"></a>
     </div>
   </li>
 </ul>