Renamed domina_rails to domina
Refactoring permissions: step 1 accessible_by_user
Refactoring permissions: accessible_by_group
Refactored accessible_by_user, no implicit argument ...

more functions less deeper if nesting
Refactoring no implicit accessible_by_user argument in haml views
Fix implicit argument calls
Unified included_resources_accessible_by_user to have second argument
Fix
Fix
Fix ...
Removed several data migrations so migrations run again completely
deleted:    db/empty_medienarchiv_instance_with_personas.pgbin
Added migration which contraints manage grouppermissions to be false
Migrated personas db for tests
Simplify permissions queries by removing manage dispatch
Fix: add public accessible mr for signed in user
Refactored entrusted_to_user
Cleaned no more used permission queries
Refactored authorized? on user model
Switched to manage for delete and refactored MR destroy action; RETAIN!