Properly update to smarty 3.1.27.

(cherry picked from commit a02262a)

libs/smarty/plugins/modifier.magicurl.php

@@ -0,0 +1,20 @@
+<?php
+/**
+ * Smarty plugin
+ * @package Smarty
+ * @subpackage plugins
+ */
+/**
+ * Smarty magicurl modifier plugin
+ *
+ * Type:     modifier<br>
+ * Name:     magicurl<br>
+ * Purpose:  turn www addresses into hyperlinks
+ * @author   bb
+ * @param string
+ * @return string
+ */
+function smarty_modifier_magicurl($str, $dereferrer="") {
+	return preg_replace('/(https?):\/\/([A-Za-z0-9\._\-\/\?=&;%]+)/is', '<a href="'.$dereferrer.'$1://$2" target="_blank">$1://$2</a>', $str);
+}
+?>