Prepare release 2.3.0.
Prepare release 2.2.1.
Prepare release 2.2.0.
Preparing release 2.1.0.
Preparing release 2.0.0.
Prepare release 1.7.0.
Make Changelog rim compatible.
Preparing release 1.5.1.
Preparing release 1.5.0.
Fix escaping of values for older versions of Shellwords.