Merge branch 'development_master_refactoring_1' of https://github.com/juliandehne/fltrail into development_master_refactoring_1

# Conflicts:
#	gemeinsamforschen/src/main/webapp/annotation/annotation-document.jsp
#	gemeinsamforschen/src/main/webapp/annotation/create-unstructured-annotation.jsp
#	gemeinsamforschen/src/main/webapp/annotation/upload-unstructured-annotation.jsp
#	gemeinsamforschen/src/main/webapp/assessment/Quiz-docent.jsp
#	gemeinsamforschen/src/main/webapp/assessment/Quiz.jsp
#	gemeinsamforschen/src/main/webapp/assessment/assess-work.jsp
#	gemeinsamforschen/src/main/webapp/assessment/calculate-assessment.jsp
#	gemeinsamforschen/src/main/webapp/assessment/create-quiz.jsp
#	gemeinsamforschen/src/main/webapp/assessment/project-docent_CG.jsp
#	gemeinsamforschen/src/main/webapp/assessment/rate-contribution.jsp
#	gemeinsamforschen/src/main/webapp/assessment/take-quiz.jsp
#	gemeinsamforschen/src/main/webapp/assessment/view-quiz.jsp
#	gemeinsamforschen/src/main/webapp/feedback/give-feedback.jsp
#	gemeinsamforschen/src/main/webapp/feedback/view-feedback.jsp
#	gemeinsamforschen/src/main/webapp/groupfinding/create-groups.jsp
#	gemeinsamforschen/src/main/webapp/journal/create-journal.jsp
#	gemeinsamforschen/src/main/webapp/journal/eportfolio.jsp
#	gemeinsamforschen/src/main/webapp/management/change-phase.jsp
#	gemeinsamforschen/src/main/webapp/management/edit-project.jsp
#	gemeinsamforschen/src/main/webapp/management/groups.jsp
#	gemeinsamforschen/src/main/webapp/management/join-project.jsp
#	gemeinsamforschen/src/main/webapp/overview-docent.jsp
#	gemeinsamforschen/src/main/webapp/overview-student.jsp
#	gemeinsamforschen/src/main/webapp/profile/profile.jsp
#	gemeinsamforschen/src/main/webapp/project-student.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-bibliography.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-concept.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-evaluation.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-method.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-overview.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-process-description.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-question.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-research.jsp
#	gemeinsamforschen/src/main/webapp/researchReport/create-title.jsp