Merge branch 'dev' into 'f-mypy'

src/doc/concepts.rst

src/doc/conf.py

src/doc/configuration.md

src/doc/future_linkahead.md

src/doc/gallery/Makefile

src/doc/gallery/curator-permissions.rst

src/doc/gallery/curator_permissions.py

src/doc/gallery/index.rst

src/doc/gallery/simulation.py

src/doc/gallery/simulation.rst

src/doc/high_level_api.rst

src/doc/index.rst

src/doc/related_projects/index.rst

src/doc/tutorials/Data-Insertion.rst

src/doc/tutorials/Entity-Getters.rst

src/doc/tutorials/basic_analysis.rst

src/doc/tutorials/caching.rst

src/doc/tutorials/complex_data_models.rst

src/doc/tutorials/data-model-interface.md

src/doc/tutorials/errors.rst