Merge branch 'dev' into 'f-mypy'

unittests/test_cached.py

unittests/test_concrete_property.py

unittests/test_configs/pylinkahead-IntegrationTests.ini

unittests/test_configs/pylinkahead-empty.ini

unittests/test_configs/pylinkahead-indiscale-demo.ini

unittests/test_configs/pylinkahead-real-world-1.ini

unittests/test_configs/pylinkahead-real-world-2.ini

unittests/test_configs/pylinkahead-server-side-scripting.ini

unittests/test_configs/pylinkahead1.ini

unittests/test_configs/pylinkahead2.ini

unittests/test_configs/pylinkahead3.ini

unittests/test_configs/pylinkahead4.ini

unittests/test_configs/pylinkahead5.ini

unittests/test_configs/pylinkahead6.ini

unittests/test_configuration.py

unittests/test_connection.py

unittests/test_connection_utils.py

unittests/test_container.py

unittests/test_datatype.py

unittests/test_entity.py