fixes #4128

app/controllers/lvgruppen/lvgruppen.php

app/controllers/room_management/planning.php

app/controllers/search/studiengaenge.php

app/controllers/shared/contacts.php

app/views/course/wizard/steps/lvgroups/_node.php

app/views/fachabschluss/abschluesse/index.php

app/views/fachabschluss/faecher/fachbereiche.php

app/views/lvgruppen/lvgruppen/details.php

app/views/materialien/files/add_dokument.php

app/views/questionnaire/assign.php

app/views/resources/_common/_grouped_room_list.php

app/views/shared/contacts/add_ranges_to_contact.php

app/views/shared/contacts/details.php

app/views/shared/contacts/range.php

lib/classes/MVV.class.php

lib/classes/coursewizardsteps/BasicDataWizardStep.php