* Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt.
* Replace 'Copyright:' with 'Copyright'
sed -i 's|Copyright:\(.*\)|Copyright\1|' $(rg -l 'Copyright:')
Co-authored-by: Maxwell G <gotmax@e.email>
* Add test which allows to query whether an action is available.
* Add documentation.
* Fix FreeBSD / macOS compatibility.
* Rename an_action -> a_module.
* Forgot one place.