canonstr -> unicode usernames

[Donnc]

Cgi.subscribe.process_form gets a unicode value for fullname,
from Utils.canonstr() (return unicode(newstr, charset,
'replace')

This came to my attention because it broke OwnerNotification
when the email Message couldn't "flatten" itself with the
unicode payload. Suspect that's only the beginning of the
trouble that will be caused, so I'm hoping we really don't
want unicode usernames values as a rule. I fixed it in
subscribe.py with fullname = fullname.encode('iso8859-1'), but
note that canonstr is used elsewhere like this.

[http://sourceforge.net/tracker/index.php?func=detail&aid=672649&group_id=103&atid=100103]

[Pcarr-users (pcarr-users)]

I stumbled over the same bug, but in my case it was bailing
only in the confirm.py script.

[Tokio Kikuchi (tkikuchi)]

If your users choose to input latin-1 charcters in fullname,
it will be better to set iso-8859-1as english charset.

in mm_cfg.py,

def _(s):
    return s
LC_DESCRIPTIONS['en'] = (_('English (USA)'), 'iso-8859-1')
del _

[Barry Warsaw (barry)]

I think this bug has been fixed in 2.1.1 or 2.1.2 (cvs).