audit: Silence not notable on non-Homebrew taps

Clean up code style and remove `.rubocop_todo.yml`.

Silence "GitHub repository not notable" on non-Homebrew taps.

Fix regexes in `CaskLoader`.

Fix comment location.

audit: tweak assert/refute_predicate audit

Addresses some of the issues I raised in https://github.com/Homebrew/homebrew-core/pull/19127#issue-263566817.
Would still like to work out a way to check `File.exist?`-style language
inside the `test do` block exclusively but for now it's better to be
too conservative on the audit than to be overly-zealous and flag too
much.

Fix RuboCop tests.

Add helper method for Cask fixture paths and refactor CaskLoader.

InternalAuditModifiedCask: audit renamed Casks

Cask AbstractArtifact: fix install order

Refactor DSL and Artifact classes.

os/mac: ignore apps found in Time Machine backups.

official_taps: remove apache.

audit: prefer assert/refute_predicate over File.exist?

Add version detection support for php URL

Fixing link to CODE_OF_CONDUCT.md within README.md

It's now deprecated.

docs: update list of taps

These can introduce confusion on e.g. outdated Xcode versions when they
are the only (or first) versions that are found.

- the official homebrew/apache tap was removed
- besport/ocaml was deprecated and now points at the OPAM package
manager
- added sidaf/pentest & osrf/simulation
- improved description for homebrew/nginx & homebrew/php

Update my name in Kickstarter-Supporters, add .mailmap

Fixing link to CODE_OF_CONDUCT.md within CONTRIBUTING.md

fixed link url to navigate to main brew repo instead of forked repo