[Patch] HTTP::absoluteURI() port redundancy

This is a simple patch to eliminate the redundant port field of absolute URIs when it's already implied by the protocol. If given a relative URL like /myfile it will change it to http://$SERVER_NAME:$SERVER_PORT even if the port is 80. I use HTTP::redirect() on my site, which makes use of absoluteURI(), and Safari users have reported that they see the :80 in their URLs. This isn't merely aesthetic; it confuses many users. The patch below checks if the port is already implied by the protocol and omits it if so. diff HTTP.php-in-cvs HTTP.php-that-I-edited 285a286,288

        if ($protocol == 'http' && $port == 80) unset($port);
        if ($protocol == 'https' && $port == 443) unset($port);

Note, this sounds similar but is different from Bug #1040. -Turadg