* New editing mechanism for attachment list: ~@ tilde escape.
* The ~a tilde escape is obsoleted by ~@ and has been removed.
* Header fields starting with =? are only interpreted as RFC 2047 fields
if they are entirely valid (Bugreport by Russell Kroll).
* Sender addresses in message lists (as in 'delete from@host') match only
the exact from address.
* Added ~x tilde escape (abort message composition without saving dead.letter).
* Fixed recognition of RFC 2045 parameter attributes (Bugreport by Russell
Kroll).
* The "for" command now inserts an intact "Resent-Reply-To:" header field.
* Avoid to prepend quote prefix twice when replying to multipart messages.
* Fixed a problem with empty Content-type fields in multipart messages.
* Allow name lists for -b and -c command line options.
* Added the "showlast" option.
