[PATCH v2] emacs: add function to toggle display of all multipart/alternative parts

[Jani Nikula]

On Tue, 19 Jun 2012, Jani Nikula <jani at nikula.org> wrote:
> Add function notmuch-show-toggle-multipart-alternative to toggle the
> value of notmuch-show-all-multipart/alternative-parts variable in the
> buffer, and redisplay the thread with either all or preferred
> alternative parts expanded.

I see that Mark has some draft stuff for a more desirable approach, but
decided to send this anyway, as this is fairly small and ready. The v2
is now in line with the existing show mode toggles.

BR,
Jani.