Update tox.ini

See merge request !316

Update .dev-js/package.json

See merge request !325

Update pyproject.toml

See merge request !323

Update .gitignore

See merge request !324

Update pyproject.toml

See merge request !322

Update package.json

See merge request !317

Update pyproject.toml

See merge request !313

Release 3.0.2

See merge request !312

Update tox.ini

See merge request !314

Resolve "Lessons doesn't get cancelled by events in "My timetable""

Closes #213

See merge request !311

Update tox.ini

See merge request !308

Do release 3.0.1

See merge request !306

Update .eslintrc.js

See merge request !303

Update pyproject.toml

See merge request !305