dump format is prefixed by '#' to allow existing scripts to ignore
it.
+Refactor notmuch-reply, make handling of duplicate headers consistent
+
Emacs
-----
`notmuch-search-flagged-face` and `notmuch-search-unread-face` are
now used by default. Customize `notmuch-faces` to modify them.
+Omit User-Agent header by default when sending mail
+
Ruby Bindings
-------------