Merge branch 'development_master' of...

...am/gf/modules/annotation/model/AnnotationPostRequest.java

...java/unipotsdam/gf/modules/annotation/model/Category.java

...potsdam/gf/modules/annotation/view/AnnotationService.java

...m/gf/modules/annotation/websocket/AnnotationWSTarget.java

...les/annotation/websocket/AnnotationWebSocketEndpoint.java

...unipotsdam/gf/modules/assessment/AssessmentMechanism.java

...nt/controller/service/AssessmentDBCommunication.java.orig

...sessment/controller/service/QuizDBCommunication.java.orig

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

...unipotsdam/gf/modules/communication/model/LoginToken.java

...otsdam/gf/modules/communication/model/RocketChatUser.java

...unication/model/rocketChat/RocketChatSuccessResponse.java

...f/modules/communication/service/CommunicationService.java

...odules/communication/util/RocketChatHeaderMapBuilder.java

...sdam/gf/modules/communication/view/CommunicationView.java

...f/modules/feedback/Controller/PeerFeedbackController.java

...ain/java/unipotsdam/gf/modules/feedback/FeedbackImpl.java

...ipotsdam/gf/modules/feedback/Model/Peer2PeerFeedback.java

...unipotsdam/gf/modules/feedback/View/PeerFeedbackView.java

...nipotsdam/gf/modules/group/EnumeratedProfileQuestion.java