Release version

[satazor]

I'm using this library in quite some projects. To guarantee that those projects never break the integration with this library, it would require them to trust that the API of the library will not change. By having version tags (git tag), we would be able to point to those tags instead of relying in an unstable master branch or fixed commit shas.

It would be possible if you start tagging versions with semver?

Thanks.