+Add support to "notmuch search" and "notmuch show" to allow for
+listing of duplicate messages, (distinct filenames with the same
+Message-ID). I'm not sure what the option should be named. Perhaps
+--with-duplicates ?
+
+Add a -0 option to "notmuch search" so that one can safely deal with
+any filename with:
+
+ notmuch search --output=files -0 <terms> | xargs -0 <command>
+
+"notmuch setup" should use realpath() before replacing the
+configuration file. The ensures that the final target file of any
+intermediate symbolic links is what is actually replaced, (rather than
+any symbolic link).
+
+Replace "notmuch reply" with "notmuch compose --reply <search-terms>".
+This would enable a plain "notmuch compose" to be used to construct an
+initial message, (which would then have the properly configured name
+and email address in the From: line. We could also then easily support
+"notmuch compose --from <something>" to support getting at alternate
+email addresses.
+
+Fix the --format=json option to not imply --entire-thread.
+