* Add `cubic-bezier` to `NameFormat` whitelist
* Allow triple-slash (`///`) comments in `SpaceAfterComment`
* Add new grid spec properties to `PropertySpelling`
* Add workaround for [negative source range lengths](https://github.com/sass/sass/issues/2284) returned by the Sass parser
* Fix `Indentation` linter to work with `@import` statements which spanned multiple lines