Merge tag 'v0.03' into develop

Prepared code for releasing a new, public version.
* Reverted change in which POD overwrote my github README.md.

This is probably a result of the new build process, which I thought would only replace the generic README in the dist with this one...
* Fix overwriting of README.md with POD from main module.
* Test result CSV file should not be in source code?
* Fix test failures under Perl >= 5.18.

The smart match operator is now experimental and produces warnings. I replaced it with grep().
* Fix columns definition in test.
* Minor formatting.
Merge branch 'release/0.04'