Return the resulting template

Instead of calling element.html(template), simply return the template -
Angular should take care of the rest. Not returning anything from the
template function also causes issues with non-standard start/end
symbols.

Author: rpungello

dist/angularjs-dropdown-multiselect.min.js

@@ -52,7 +52,7 @@ directiveModule.directive('ngDropdownMultiselect', ['$filter', '$document', '$co
                 template += '</ul>';
                 template += '</div>';
 
-                element.html(template);
+                return template;
             },
             link: function ($scope, $element, $attrs) {
                 var $dropdownTrigger = $element.children()[0];