1.0.0
Changed the expected source file format from using data-fill-with="grammar-X" to grammar-fill-with="X". This works around a particular interaction with the Bikeshed spec pre-processor, discussed in whatwg/webidl#1195.
Changed the main module's default export to no longer be promise-returning; instead it just returns a string directly.
Renamed the CLI from pp-webidl to webidl-grammar-post-processor, to match the package and repository name.
Replaced the treatment of float as a non-terminal with decimal, to fix whatwg/webidl#815. (#1)