Merge remote-tracking branch 'origin/master' into helppage

.flake8

.gitignore

.gitlab-ci.yml

.pylintrc

Makefile

README.md

docs/deploying.md

docs/settings.py

management/consumers.py

management/forms.py

management/models.py

management/static/management/css/style.css

management/templates/management/base.html

management/templates/management/election.html

management/templates/management/results.html

management/templates/management/session.html

mypy.ini

pyproject.toml

requirements.txt

requirements_dev.txt