versioning implemented on NFEntity
Anamnesis remade to be a singleton
Anamnesis remade to be a singleton - hide/unhide methods are not relevant
verification demo
operation table view updated
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	Backend/src/main/resources/messages_cs.properties
	Backend/src/main/resources/messages_en.properties
	Backend/src/main/webapp/WEB-INF/views/patient/operation/operationTableView.jsp