rem: const KURL &messageFile)
add: const KURL &messageFile, const KURL& attachURL)
context:   int openComposer (const QString &to, const QString &cc, const QString &bcc,                    const QString &subject, const QString &body, int hidden,                    const KURL &messageFile)  {    return openComposer(to, cc, bcc, subject, body, hidden, messageFile, KURL::List());  }