Previously, the http_content_headers_and_checksum method always
downloaded the entire url, including headers. These downloads
periodically hang, outputting false positives or wreaking havoc on
the CI. Therefore, use curl's --max-time arg to prevent this by
setting a hard limit of 600 seconds when the entire file is going
to be used to detect whether the url can be changed to use the HTTPS
protocol instead of HTTP. Otherwise, if the url already is HTTPS, limit
the download time to 25 seconds since only the headers, not contents, matter.

docs: add markers to ordered lists and sublists

Revert "audit: exempt wine's deps from the universal deprecation"

While GitHub allows a single space to denote a sublist, Jekyll is not
so lenient. It also seems unable to handle ordered sublists.

Add `#installed_caskfile` method to `Cask` class.

Use `CaskLoader.load_from_file` in `Auditor`.

keg: Skip relocation when dylib ID/install name doesn't change.

update: stop autoupdate skipping no formula taps.

Change instances of caskroom.io to caskroom.github.io

Migrate legacy Caskroom.

This will be slightly slower if you have a bunch of non-formula (i.e.
command or cask) taps but it avoids the confusion of having Homebrew
saying it's updated when it only did so selectively.

Fixes #1946.

Remove old metadata when installing with `--force`.

Replace `#plural` by `Formatter::pluralize`.

docs: update Brew Test Bot screen shots

hardware: use march=native for generic module.

test: fix tests with a shallow clone.

java_requirement.rb: use HTTPS in Java Platform URL

Fix “Hombrew” typo.

Fix `uninstall :pkgutil` leaving empty `.app` directories.

It's redirected to cleartext, though this URL will be opened
in a browser so it won't be something hidden, and maybe
Oracle will fix this in the future.

`ENV.prepend_path "PATH", which("emacs").dirname` in the emacs
requirement was causing us to end up invoking /usr/bin/clang instead
of /usr/local/Homebrew/Library/Homebrew/shims/super/clang.

This matches Linux where this behaviour was original imported from.

Refactor artifacts.

Python requirements: Remove casks

linux: Add ARM to CPU.type

Neither python nor python3 are available from Caskroom.

Signed-off-by: Bob W. Hogg <rwhogg@linux.com>