Merge branch 'dev' into f-filesystem

.gitlab-ci.yml

CHANGELOG.md

Makefile

RELEASE_GUIDELINES.md

setup.py

src/caosdb/apiutils.py

src/doc/gallery/Makefile

src/doc/gallery/index.rst

src/doc/gallery/simulation.py

src/doc/gallery/simulation.rst

src/doc/index.rst

src/doc/tutorials/index.rst

src/doc/tutorials/serverside.rst

tox.ini

unittests/test_apiutils.py