removed the indexer when tidying

Author: dsparkplug

src/js/jquery.smartTab.js

@@ -598,7 +598,7 @@
                 if (instance != null) {
                     instance.tabs.off("click");
                     instance.main.data('click-init', false)
-                    $.data(this, 'smartTab', null);
+                    $.data(this[0], 'smartTab', null);
                 }
                 return this;
             }