re #42 add tests of DefaultSettingsDTO
re #32 rename classes returned from webservices to have -DTO suffix
re #36 drop localization from backend
re #29 separate editable user-data into own class.
re #29 split User into abstract class and RegisteredUser class
General user-info turned into interface in order to support multipleuser info sources (authentication methods)
re #41 move enumerations from dto to domain package
re #37 code cleanup
re #30: rename base package and groupId
re #36 hotfix to make tests pass, still needs refactoring
Cannot take a vacation in past, refactor VacationDay to Vacation in domain package
Final version of the class VacationDay with its tests
Final version of the class DefaultSettings with its tests
Final version of domain class User with tests
Handle different or non inputs, unit tests, error messages
Re #7545 Fix errors in tests and domain classes
Merge branch 'develop' into Test
Documentation domain and dto, unit test domain, error input domain
Fixed JUnit test via Maven
Re #7530 Get 'vacation' and 'overtime' from input xlsx file
Re #7491 Implemented API for import/export with mocked PDF and XLS processing
Re #7386 Implemented APIs endpoints with DTOs