Ignore trailing ;'s in the Content-Transfer-Encoding value
Ignore trailing ;'s in the Content-Transfer-Encoding value

They shouldn't be there in the first place, but the joys of working
with messages generated by broken mailers is the like a gift that
keeps on giving.

See issue #106 for details.

jstedfast/MimeKit,nachocove/MimeKit,jstedfast/MimeKit,jstedfast/MimeKit,nachocove/MimeKit,nachocove/MimeKit