New versions of zprint.

Add :planck-cmd-line and :lumo-cmd-line, documentation for both.

Updated to latest versin of zprint.

Updated to a new version of zprint.

Update versions of zprint.

New version of zprint, updated changelog.

New version of zprint, updated changelog.

Use latest version of zprint, and reformat to current default

Updated CHANGELOG.md

Added :left-space tests, updated readme and changelog.