`.gitignore` + `svn:ignore`:
* Add the typical filenames of overloaded PHPCS configs to `.gitignore`.
Composer:
* Use the `develop` (Packagist `dev-master`) version of WPCS as it contains lots of bugfixes.
* Remove the PHPCS dependency. This is a dependency of WPCS, not of WP Core itself. This will also make sure that the PHPCS version used is always one which is supported by WPCS.
* Refreshed the `composer.lock` file.
PHPCS ruleset:
* Removed a reference to a sniff which doesn't exist in WPCS yet.
* Use the PHPCS 3.x `basepath` option to clean up the file paths PHPCS shows in the reports.
* Use the PHPCS 3.x `parallel` option to enable parallel scanning whenever possible to speed up the scans.
* Whitelist the `wp-includes/l10n.php` file from issues being reported by the `WordPress.WP.I18n` sniff.
Fixes#44366.
git-svn-id: https://develop.svn.wordpress.org/trunk@43348 602fd350-edb4-49c9-b593-d223f7449a82
