Version v4.0.0

Changelog

• Merge pull request #20 from getindata/feature/remove_contest_and_provider_changes ← a4ce86b
• chore: fix typo ← eb76742
• chore: fix typo ← 2871e10
• fix: default for role naming ← 3c1d3ab
• chore: refactor logic for create_default_roles flag ← 7787131
• fix: typo in configuration ← 2b31d33

v3.0.1..v4.0.0