Migrate some formula with hard-X11 dependencies.

We have the homebrew-x11 tap for this reason so let's migrate everything
without any reverse dependencies. Ideally I'd also like to migrate
everything that's :recommended and the GTK formulae through there too
(or to a dedicated homebrew-gtk).
audit: add strict mode, argument.
audit: check options when in strict mode.
uses: harden against missing formulae.
test-bot: use audit --strict on added formulae.
gst-plugins-bad: add option to build applemedia elements
gst-plugins-bad: update 1.4.4 bottle.