- fixed the bug related to ELHO message: "ELHO SmtpClient for Qt/C++"
changed to "ELHO " + name, the name is now by default "localhost"
- added setter and getter for the name used in the ELHO message
- added virtual attribute to prepare() method in all classes
- added virtual attribute to toString() in the MimeMessage and
MimePart classes
The subject, sender's and the recipient's names can be also ecoded with
base64 and quoted-printable.
See the MimeMessage::setHeaderEncoding() function.