Allow creating new tags in multiple select mode.

src/select.js

@@ -496,6 +496,29 @@
           e.preventDefault();
           e.stopPropagation();
         }
+
+	      // In multiple select (tag) mode, when Enter key pressed and tag doesn't exist, add it.
+	      if (ctrl.multiple && !processed && (key == KEY.ENTER)) {
+		      e.preventDefault();
+		      e.stopPropagation();
+
+		      var matchFound = false;
+
+		      // Disallow duplicate tags (not case sensitive).
+		      angular.forEach(ctrl.selected, function(value) {
+			      if (ctrl.search == value) {
+				      matchFound = true;
+				      return false;
+			      }
+		      });
+
+		      if (!matchFound) {
+			      ctrl.selected.push(ctrl.search);
+			      _resetSearchInput();
+			      ctrl.sizeSearchInput();
+		      }
+	      }
+
       });
 
       if(KEY.isVerticalMovement(key) && ctrl.items.length > 0){

src/select2/match-multiple.tpl.html

@@ -7,6 +7,6 @@
   <li class="ui-select-match-item select2-search-choice" ng-repeat="$item in $select.selected" 
       ng-class="{'select2-search-choice-focus':$select.activeMatchIndex === $index}">
       <span uis-transclude-append></span>
-      <a href="#" class="ui-select-match-close select2-search-choice-close" ng-click="$select.removeChoice($index)" tabindex="-1"></a>
+      <a href="" class="ui-select-match-close select2-search-choice-close" ng-click="$select.removeChoice($index)" tabindex="-1"></a>
   </li>
 </span>