Merge branch 'dev' into merge/dashboard-cache

# Conflicts:
#	.idea/misc.xml
#	requirements.txt
#	schoolapps/dashboard/urls.py
#	schoolapps/dashboard/views.py
#	schoolapps/schoolapps/settings.py
#	schoolapps/schoolapps/urls.py
#	schoolapps/templates/partials/header.html
#	schoolapps/timetable/views.py