This never worked as well as the other amqp option that we support,
and upgrading it to the current version is a bit of a chore.
I'd rather just drop this dep and keep things more trim.
Since none of our sponsors are using the lapin implementation, let's
mark it as deprecated and we can take it out after we cut the next
stable release.
We've been hoping that mkdocs-material will ship the much anticipated
search enhancements for some time, but it's time to recognize that
we need to do something to improve the search results with how
things work right now.
This is a big commit that changes the titles of the various pages
from the code-annotated synopsis to just the name of the function.
This makes it much easier now to match things like `kumo.reject`
directly, but `reject` remains awkward to find.
I think this is the best that we can do at this time.
A few functions have been annotated with the `status: deprecated` to
show as deprecated in the toc/nav (shows with a little trash can next
to the name).
Wez Furlong