Fix so attachment charset is set in headers of forward/draft message (#1490...

Aleksander Machniak

2014-10-22 d165d11012a3814b129b3dab6419212bad8e5872

 program/steps/mail/sendmail.inc

@@ -469,7 +469,8 @@
                $attachment['data'] ? false : true,
                $ctype == 'message/rfc822' ? '8bit' : 'base64',
                'attachment',
                '', '', '',
                $attachment['charset'],
                '', '',
                $folding ? 'quoted-printable' : NULL,
                $folding == 2 ? 'quoted-printable' : NULL,
                '', RCUBE_CHARSET