Merge branch master into 266-add-statistics-page-for-absences

CHANGELOG.rst

aleksis/apps/alsijil/actions.py

aleksis/apps/alsijil/checks.py

aleksis/apps/alsijil/filters.py

aleksis/apps/alsijil/forms.py

.../components/coursebook/absences/AbsenceCreationDialog.vue

...end/components/coursebook/documentation/Documentation.vue

...omponents/coursebook/documentation/DocumentationModal.vue

...end/components/coursebook/documentation/LessonSummary.vue

aleksis/apps/alsijil/frontend/index.js

aleksis/apps/alsijil/frontend/messages/de.json

aleksis/apps/alsijil/frontend/messages/uk.json

aleksis/apps/alsijil/locale/ar/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/de_DE/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/fr/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/la/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/nb_NO/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/ru/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/tr_TR/LC_MESSAGES/django.po

aleksis/apps/alsijil/locale/uk/LC_MESSAGES/django.po