v0.3.0

This is the first non-prerelease version of the library. As far as I know, this is the most complete implementation of the App Store Connect API up to the new endpoints in 1.2. It should be relatively stable, but I am yet to establish wide-coverage or regular CI runs of the integration tests. If you encounter a deserialization error or some other kind of error that appears to be originating from the library, please file an issue.

Looking forward to revealing what I'm using this for!