Merge branch 'dev' into pwa-optimized

schoolapps/doc/views.py

schoolapps/menu/views.py

schoolapps/schoolapps/settings.py

schoolapps/schoolapps/urls.py

schoolapps/static/common/helper.js

schoolapps/static/common/manifest.json

schoolapps/static/common/manup.min.js

schoolapps/static/common/pwabuilder-sw-register.js

schoolapps/static/common/pwabuilder-sw.js

schoolapps/static/common/style.css

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