Fix html2text conversion of strong|b|a|th|h tags when used in upper case

Aleksander Machniak

2012-05-28 b4a0b9285f4bad7aed929c50069bfda7d75d9299

 program/lib/html2text.php

@@ -668,7 +668,7 @@
     */
    private function _preg_callback($matches)
    {
        switch($matches[1]) {
        switch (strtolower($matches[1])) {
        case 'b':
        case 'strong':
            return $this->_toupper($matches[2]);