Merge commit 'd43f0681' into single-user-project

...c/main/java/unipotsdam/gf/config/GFApplicationBinder.java

...essment/controller/service/AssessmentDBCommunication.java

...modules/assessment/controller/service/PeerAssessment.java

...tsdam/gf/modules/assessment/controller/view/QuizView.java

...n/src/main/java/unipotsdam/gf/modules/group/GroupDAO.java

...orschen/src/main/webapp/annotation/js/unstructuredRest.js

...schen/src/main/webapp/annotation/js/unstructuredUpload.js

...rc/main/webapp/annotation/upload-unstructured-dossier.jsp

gemeinsamforschen/src/main/webapp/assessment/assess-work.jsp

...nsamforschen/src/main/webapp/assessment/js/assess-work.js

gemeinsamforschen/src/main/webapp/project/tasks-student.jsp