Merge branch 'f-doc' into 'dev'

.gitignore

.gitlab-ci.yml

CHANGELOG.md

Makefile

README_SETUP.md

conf/core/cache.ccf

conf/core/global_entity_permissions.xml

conf/core/log4j2-debug.properties

conf/core/log4j2-default.properties

conf/core/server.conf

conf/core/usersources.ini.template

src/doc/Makefile

src/doc/administration/configuration.rst

src/doc/concepts.rst

src/doc/conf.py

src/doc/getting_started.md

src/doc/index.rst

...rver/database/backend/transaction/VersionTransaction.java

src/main/java/org/caosdb/server/jobs/Job.java

src/test/docker/Dockerfile