Merge branch 'fixing_tests' into 'master'

.gitignore

.gitlab-ci.yml

docs/Makefile

docs/make.bat

docs/source/conf.py

docs/source/dev_guide/bookkeeping.rst

docs/source/dev_guide/dev_workflow.rst

docs/source/dev_guide/docker_settings.rst

docs/source/dev_guide/quick_guide.rst

docs/source/dev_guide/test_docs.rst

docs/source/index.rst

docs/source/user_guide/faqs.rst

docs/source/user_guide/installation.rst

docs/source/user_guide/overview.rst

tests/test_with_dummy.py

topfarm/cost_models/dummy.py