Added docs
Merge pull request #6 from RWOverdijk/docs/add-docs

Added docs
Added visitor module
Update user for roles
Update message to follow standards
Merge pull request #7 from RWOverdijk/hotfix/add-compat

Hotfix/add compat
Added docs
Added error usage
Merge pull request #8 from RWOverdijk/hotfix/identity

Added docs
Add new error responses and fill/update docs