Have links use unique class.

git-svn-id: http://svn.automattic.com/wordpress/trunk@788 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/links.php

@@ -545,8 +545,7 @@ WHERE link_visible =  'Y'
 			$orderby = (bool_from_yn($cat['sort_desc'])?'_':'') . $orderby;
 
 			// Display the category name
-			echo '	<li class="links">' . stripslashes($cat['cat_name']) . "\n\t<ul>\n";
-
+			echo '	<li class="'.sanitize_title($cat['cat_name']).'">' . stripslashes($cat['cat_name']) . "\n\t<ul>\n";
 			// Call get_links() with all the appropriate params
 			get_links($cat['link_category'],
 				'<li>',"</li>","\n",