Merge branch 'dev' into f-test-requirements

.gitlab-ci.yml

CHANGELOG.md

setup.py

src/linkahead/apiutils.py

src/linkahead/common/administration.py

src/linkahead/common/models.py

src/linkahead/common/state.py

src/linkahead/common/versioning.py

src/linkahead/connection/authentication/interface.py

src/linkahead/connection/connection.py

src/linkahead/connection/mockup.py

src/linkahead/utils/git_utils.py

src/linkahead/utils/plantuml.py

unittests/test_authentication_auth_token.py

unittests/test_connection.py