Update version (4.1.0)

[Kirbo]

No description provided.

[benct]

Thank you for the contribution. However, this has (seemingly) already been issued in #128 and committed here last week. I've just been a bit busy so I have not been able to push it and create a new version for it yet.

For future reference, please only commit actual code changes, and not any changes to the versioning or changelogs. I will update these when I'm done adding stuff and cleaned up the code :)