Merge branch 'SimpleSamlPHP' into testing

.gitlab-ci.yml

ChangeLog.md

RELEASE-NOTES.md

app/controllers/admin/autoinsert.php

app/controllers/admin/banner.php

app/controllers/admin/courses.php

app/controllers/admin/ilias_interface.php

app/controllers/admin/login_style.php

app/controllers/admin/statusgroups.php

app/controllers/admin/user.php

app/controllers/admin/webservice_access.php

app/controllers/avatar.php

app/controllers/blubber.php

app/controllers/calendar/calendar.php

app/controllers/calendar/schedule.php

app/controllers/contact.php

app/controllers/course/admission.php

app/controllers/course/archive.php

app/controllers/course/basicdata.php

app/controllers/course/block_appointments.php