ack: remove unneeded formula require.
audit: simplify test defined check.
Rename HEAD only tap.
Use version attribute directly in cache comparisons

The bug that prompted the two relevant commits has since been addressed.

Squashed commit of the following:

commit ecca17ede8324efd1175a42300ace8e1e2df30fa
Author: Jack Nagel <jacknagel@gmail.com>
Date:   Sat Dec 27 16:16:12 2014 -0500

    Revert "Don't use pkg_version when cleaning the cache"

    This reverts commit 4d511b5169d78a5d44bbf6c36c17f0c28014a614.

commit e8935de08f6440ae1874ce523f93b19da6b68df3
Author: Jack Nagel <jacknagel@gmail.com>
Date:   Sat Dec 27 16:16:12 2014 -0500

    Revert "Fix cleanup for head-only formulae"

    This reverts commit 510267ffd314c296c0b0969dd27d130a249f16e2.
Remove dead code
Stop testing accessor type
Drop conflicts with removed formulae

Closes #35292.
Revert "audit (strict): check for use double-quotes."

This reverts commit 8fe14451842dea92bca04116ba043421b4f44a6b.

Conflicts:
	Library/Homebrew/cmd/audit.rb
yle-dl: install AdobeHDS.php when HEAD.

See https://github.com/aajanki/yle-dl#installation . Note that due to an
upstream bug, the installation happens only for HEAD, for now.

Closes #35212.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
tcc: add a test (hello world with `tcc -run`)

Closes #35295.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
Preserve signature of #initialize in tests
Avoid TestBall class in checksum verification tests
Drop unnecessary requires
Drop pointless subclass in test
Documentation Updates

Acceptable-Formulae:

* Makes the language around stable versions stricter.
* Fixes the Homebrew/Head-only lack-of-hyphen.
* Adds Homebrew/Devel-only.

Formula-Cookbook:
* Adds a link to Interesting-Taps-&-Branches.
* Fixes the Python language to match Tim’s latest guidelines.
* Adds a note on options that aren’t ` build-with? ` or `
build-without? `.

Interesting-Taps-&-Branches:
* Slightly modifies the Versions language to better match what the
repository actually ships.
* Adds Homebrew/Devel-only to the language.

Closes #35298.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
polipo: introduce --with-large-chunks for 16k size

Closes #35293.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
gnu-apl: test interpreter, not version

Closes #35297.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
libnfc: compile with all drivers by default.

Closes #35301.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
libnfc: update 1.7.0 bottle.
ghostscript: modernize