<div class="col-xs-2 col-sm-2 col-md-2 col-lg-2">
    <ul class="list-group">
        <?php echo str_replace("</ul></div>", "", ereg_replace("<div[^>]*><ul[^>]*>", "", wp_nav_menu(array('theme_location' => 'user', 'echo' => false)) )); ?>
    </ul>
</div>