Use semantic versioning (start with v1) and maintain a changelog

[jedwards1211]

If your software is being used in production, it should probably already be 1.0.0.
(https://semver.org/spec/v2.0.0.html)

Fast.js seems to already be intended for production and has over 3,000 stars.

But it has no changelog!! 😱

If you feel like you're too busy to write a changelog, consider using semantic-release, which not only automates releases but generates a changelog in your GitHub releases from your (carefully written) commit messages.

Please go ahead and release version 1.0.0 so that

• npm can pull in the latest bug fixes when installing ^1.0.0 etc.
• you will be motivated to write a changelog
• users will be able to find breaking change information quickly