easy (?) elisp project for notmuch [it's mostly DONE]

[Jonas Bernoulli]

> As of Emacs 27, Emacs will start issuing deprecation warnings for
> packages that load cl.el. I _think_ it's just a matter of replacing
> functions and macros from cl.el with cl-<foo> prefixed ones, but I
> haven't really investigated.

> If someone is looking for an easy way to contribute, this cleanup might
> be a good way to start.

Just a heads up to avoid duplicated work.

I have already done this (and then some) a while ago.  I want to have
another look before I submit it, but will try to get that done today.

(I cannot actually reply to "easy (?) elisp project for notmuch"
because I wasn't subscribed yet when that was send.)

  Cheers,
  Jonas