- need to add ``unalternates''

- thread sorting needs to be improved so it doesn't need to resort all
messages when a new message arrives

- add secondary sorting support
	sort <primary-method> [ <secondary-method> ]

- add a command line option to allow headers to be included in the input when
using batch mode.

- allow reverse-* sorting with the `threads' option

- trim the size of the References: field to ``N'' message-ids when sending mail

- the search command needs some work to know when to invalidate its saved
  bit vector

- update bad content-length fields in messages

- make the string history routines generic to allow for different classes of
  history

- allow access to attachments inside of a PGP encrypted message

- attachments should be editable and viewable from the send-attach-menu

- combine attach-menu and send-attach-menu into a single menu

- Other than multipart/mixed and PGP/MIME, Mutt should allow the user to
  specify what to do with other types of multipart messages (i.e., so a user
  can deal with S/MIME messages reasonably)

- buffy

- pipe-message

- alternate-pgp

- color-syntax

- ci_send_message() needs an overhaul

- command line attachments are not shown in the initial send-menu display

- look into adding a read-only mode

- mask for the file browser

- work on generic mailbox driver to support mbox, mmdf, mh and maildir
  formats

- option for suppressing message-id generation

- fix MIME handlers to decode Q-P and B64 for types other than text/plain.

- jump-undo function?

- allow multiple vars to be set in a single ``set'' command (ala vi, Mail,
  MUSH)
