upgraded to yui 0.12.0

upgraded to yui-ext 0.33 rc2

www/extras/yui/examples/connection/php/sync.php

@@ -0,0 +1,18 @@
+<?php
+
+header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
+
+// always modified
+header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
+
+// HTTP/1.1
+header("Cache-Control: no-store, no-cache, must-revalidate");
+header("Cache-Control: post-check=0, pre-check=0", false);
+
+$num = mt_rand(0,10);
+sleep($num);
+echo('<span>This request responded in '.$num.' seconds. </span>');
+
+?>
+
+