Make $request global to satisfy the page navigation fxns.

git-svn-id: https://develop.svn.wordpress.org/trunk@1360 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/functions.php

@@ -1354,8 +1354,7 @@ function check_comment($author, $email, $url, $comment, $user_ip) {
 }
 
 function query_posts($query) {
-    global $wpdb,
-        $pagenow;
+    global $wpdb, $pagenow, $request;
 
     parse_str($query);