fixing issue #60

...insamforschen/src/main/webapp/annotation/see-feedback.jsp

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

...insamforschen/src/main/webapp/assessment/final-grades.jsp

.../src/main/webapp/assessment/rate-contribution-teacher.jsp

...forschen/src/main/webapp/assessment/rate-contribution.jsp

...rschen/src/main/webapp/assessment/upload-final-report.jsp

...rschen/src/main/webapp/assessment/upload-presentation.jsp

...hen/src/main/webapp/groupfinding/create-groups-manual.jsp

gemeinsamforschen/src/main/webapp/project/delete-project.jsp

gemeinsamforschen/src/main/webapp/project/js/tasks.js

gemeinsamforschen/src/main/webapp/survey/assess-group.jsp

gemeinsamforschen/src/main/webapp/survey/enterGFM.jsp

gemeinsamforschen/src/main/webapp/taglibs/timeLine.jsp