code: function ()
          {
              var self = this;
              $('.chip', self.$container).each(function ()
              {
                  var $tag        = $(this),
                      item        = $tag.data('item'),
                      itemValue   = self.options.itemValue(item),
                      itemText    = self.options.itemText(item),
                      tagClass    = self.options.tagClass(item);
  
                  // Update tag's class and inner text
                  $tag.attr('class', null);
                  $tag.addClass('tag ' + htmlEncode(tagClass));
                  $tag.contents().filter(function ()
                  {
                      return this.nodeType == 3;
                  })[0].nodeValue = htmlEncode(itemText);
  
              });
          }
docs: Refreshes the tags so they match the text/value of their corresponding
  item.