add smarty engine, remove some obsolete zot1 stuff

library/Smarty/libs/plugins/modifiercompiler.lower.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * Smarty plugin
+ * @package Smarty
+ * @subpackage PluginsModifierCompiler
+ */
+
+/**
+ * Smarty lower modifier plugin
+ *
+ * Type:     modifier<br>
+ * Name:     lower<br>
+ * Purpose:  convert string to lowercase
+ *
+ * @link http://www.smarty.net/manual/en/language.modifier.lower.php lower (Smarty online manual)
+ * @author Monte Ohrt <monte at ohrt dot com>
+ * @author Uwe Tews
+ * @param array $params parameters
+ * @return string with compiled code
+ */
+
+function smarty_modifiercompiler_lower($params, $compiler)
+{
+    if (Smarty::$_MBSTRING) {
+        return 'mb_strtolower(' . $params[0] . ', \'' . addslashes(Smarty::$_CHARSET) . '\')' ;
+    }
+    // no MBString fallback
+    return 'strtolower(' . $params[0] . ')';
+}
+
+?>