skeletontheme_breadcrumb() outputs HTML5 <nav>

The skeletontheme_breadcrumb() function in template.php outputs an HTML5 nav tag while the rest of the theme utilizes XHTML+RDFa 1.0. This function should use div instead.

function skeletontheme_breadcrumb($variables) {
  $breadcrumb = $variables['breadcrumb'];
  if (!empty($breadcrumb)) {
    // Use CSS to hide titile .element-invisible.
    $output = '<h2 class="element-invisible">' . t('You are here') . '</h2>';
    // comment below line to hide current page to breadcrumb
	$breadcrumb[] = drupal_get_title();
    $output .= '<nav class="breadcrumb">' . implode('<span class="sep">»</span>', $breadcrumb) . '</nav>';
    return $output;
  }
}

On a less critical note, »should be used in place of a literal right angle quote symbol.