Merge branch 'dev/from_argparse' into 'master'

.gitlab-ci.yml

CHANGELOG.md

README.rst

appveyor.yml

dev/ci_public_gpg_key.pgp.enc

dev/ci_secret_gpg_subkeys.pgp.enc

dev/gpg_owner_trust.enc

dev/make_strict_req.sh

dev/public_gpg_key

dev/secrets_configuration.sh

dev/setup_secrets.sh

publish.sh

pytest.ini

requirements.txt

requirements/optional.txt

requirements/runtime.txt

requirements/tests.txt

scriptconfig/__init__.py

scriptconfig/config.py

scriptconfig/smartcast.py