fix for BIESt #1110

app/controllers/resources/admin.php

app/controllers/resources/category.php

app/controllers/resources/export.php

app/controllers/resources/messages.php

app/controllers/resources/print.php

app/controllers/resources/property.php

app/controllers/resources/resource.php

app/controllers/resources/room.php

app/controllers/resources/room_planning.php

app/controllers/resources/room_request.php

app/controllers/room_management/planning.php

app/views/resources/_common/_grouped_room_list.php

app/views/resources/_common/_permission_table.php

app/views/resources/_common/_request_tr.php

app/views/resources/_common/_resource_tr.php

app/views/resources/_common/_room_tr.php

app/views/resources/admin/property_groups.php

...ews/resources/resource/_standard_properties_form_part.php

app/views/resources/resource/permissions.php

app/views/resources/room/_add_edit_form.php