Release version 2.1.0 (#251)
Release version 2.1.0 (#251)

* Release 2.1.0

* Fix code style!

Co-authored-by: markuspoerschke <1e8b8e202e5dad809b254b88fb565853956c57b0@users.noreply.github.com>
Co-authored-by: markuspoerschke-bot <db1fc73fae6fce1ec1dddf45de4fb03b72587e5b@users.noreply.github.com>
markuspoerschke/iCal,markuspoerschke/iCal