Bump version to 4.1.1 Most important changes are fixing `log>=0.4.15`. Adding the new feature (support for `log/unstable_kv`) could arguably require bumping the minor version (-> 4.2.0) However, since it's an unstable feature so I don't consider that necessary.

Bump version 

Merge pull request #11 from eranrund/master update changelog, bump version.

version 3.0.1 

version 2.0.0-3.0 

version 2.0.0-1.0 

version 2.0.0-0.1 

version 0.2.0