pyqt: style nits
pyqt: don't open a GUI during brew test

Opening a GUI window during brew test leads to test failures on Yosemite.
pyqt: bottle against system Python

Closes #35283.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
pyqt: update 4.11.1 bottle.
nacl: homepage move

The homepage has moved. Also added a mirror, and fixed the quotation
marks.

If it’s possible to get bottles for this, even not-completely-optimal
bottles, despite the weird make process, that’d be useful given the
15-20 minute compile otherwise.

Closes #35276.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
nacl: add 20110221 bottle.
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).