Merge branch 'dev' into ubuntu-based

.gitlab-ci.yml

CHANGELOG.md

tests/test_authentication.py

tests/test_empty_text_value.py

tests/test_file.py

tests/test_issues_mysqlbackend.py

tests/test_issues_server.py

tests/test_name_properties.py

tests/test_query.py

tests/test_server_side_scripting.py

tox.ini