Generic for Dao and Data Classes.
Merge branch 'master' of https://github.com/hhagmans/Ticket-Boys

Conflicts:
	pom.xml
	src/main/java/de/fh_dortmund/ticket_system/business/ShiftData.java
	src/main/java/de/fh_dortmund/ticket_system/business/VacationEventModel.java
	src/main/java/de/fh_dortmund/ticket_system/presentation/DispatcherView.java