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

Aleksander Machniak

2014-10-22 d165d11012a3814b129b3dab6419212bad8e5872

 program/steps/mail/compose.inc

@@ -1377,6 +1377,7 @@
        'data'       => $data,
        'path'       => $path,
        'size'       => $path ? filesize($path) : strlen($data),
        'charset'    => $part->charset,
    );

    $attachment = $rcmail->plugins->exec_hook('attachment_save', $attachment);