Merging quoted-printable functions

[Alexander Pohoyda]

I'm trying to merge three implementations of quoted-printable
routines.

1. mail/mail-utils.el
   mail-(un)quote-printable (string)

2. gnus/qp.el
   quoted-printable-{en,de}code-{region|string}

3. mail/rmail.el
   rmail-decode-quoted-printable (region)


I would like to move GNUS functions into mail/mail-utils.el, because
they seem to be the best.
I would not like to append the mail- prefix, though. Is this OK?

Also, I would like quoted-printable-...-region functions to return the
resulting size, as their base64-...-region analogs do.

Any comments? Thank you.


-- 
Alexander Pohoyda <address@hidden>
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