fix for BIESt #1016

app/controllers/admin/courseplanning.php

app/controllers/admin/overlapping.php

app/controllers/calendar/contentbox.php

app/controllers/course/admission.php

app/controllers/course/basicdata.php

app/controllers/course/block_appointments.php

app/controllers/course/lvgselector.php

app/controllers/course/overview.php

app/controllers/course/room_requests.php

app/controllers/course/study_areas.php

app/controllers/course/timesrooms.php

app/controllers/evaluation.php

app/controllers/my_courses.php

app/controllers/my_institutes.php

app/controllers/questionnaire.php

app/controllers/studip_controller.php

app/views/admin/overlapping/selection.php

app/views/calendar/contentbox/display.php

app/views/course/basicdata/_input.php

app/views/course/basicdata/view.php