Renamed function for clarity.

The word "audible" doesn't really indicate what exactly happens with
when the querying is performed. The idea behind using "audible" was to
"call an audible" (like they do in football). However, I think sticking
with the word "pivot" clearly defines what is happening here.
Tweaked Inquisitor to take options (if passed in).

This commit allows inquisitor to be instantiated with an options object
OR just a manifest. Inquisitor can now take a custom `prompter` that
simply returns a then-able promise. I've also removed an example file
that I was using to mess with things.