[PATCH v2] emacs: Cycle through notmuch buffers rather than jumping to the last.

[Austin Clements]

Quoth David Edmondson on Jan 15 at 11:55 am:
> On Sat, 14 Jan 2012 10:29:31 +0100, Pieter Praet <pieter at praet.org> wrote:
> > Might I ask, to what key(chord) have you bound this ?  Due to its
> > usefulness, I'm inclined to bind it to [SPC], but on second though,
> > that might be a bit on the intense side...
> 
> C-c= globally. That's clobbered in a couple of major modes, but not
> enough to bother me so far.

Might it make sense to bind this across the notmuch mode maps by
default?  This would at least make this feature more visible as well
as quite useful to people who dedicate an Emacs instance to notmuch.