to fix build failures in dependent ports by tb@, tweaked by me (regen
patches, stop listing headers separately in the makefile).
various bug fixes, including c-client's version of the "parses
information from an IMAP server during non-authenticated state" class
of problems which was found in a bunch of IMAP software recently, some
crashes/memory corruption, and a problem with forwarding and replacing
attachments.
ok tb@