actually report the filename in _psl_filename
clean up help output
abort with failure if no domain is passed to psl in a mode where it tries to work with domains
bin/psl should be dynamically-linked
Merge pull request #6 from dkg/develop

Develop
fix distcheck
removed check for idn2 from autogen.sh
added copyright notice to LICENSE file
clean up psl --help output
Merge pull request #9 from dkg/develop

clean up psl --help output
added copyright notice to COPYING file
Merge branch 'develop' of https://github.com/rockdaboot/libpsl into develop
:)
Merge pull request #11 from dkg/develop

:)
Release V0.3.1
Release V0.3.1