0.22    2018-06-20
    - Fix POD (@manwar)
    - Use Class::Tiny instead of Mo (@tobyink)
    - Improve test suite

0.21    2018-06-17
    - Add POD documentation to all classes

0.2     2018-06-04
    - Improved logging flexibility

0.1     2018-03-22
    - First usable version for further testing
    - Snapshots and event substreams
    - Customizable event logging
    - File system event storage
    - Transparent snapshot caching