Add an exemple of iso/quoted-printable encoded header field.
Kevin Deldycke authored
uuencode is not a standard encoding for mail.
Comment out code that support attachments because not well tested yet.
Fix bugs to handle well encoding of incoming mails.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@6406 20353a03-c40f-0410-a6d1-a30d3c3de9de
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