Merge branch 'datetimepicker-issue-11' into 'master'

README.md

management/forms.py

management/static/management/css/DateTimePicker.css

management/static/management/js/DateTimePicker.js

management/static/management/js/datetime.js

management/templates/management/add_election.html

management/templates/management/add_session.html

management/templates/management/base.html

management/templates/management/session.html

management/templates/management/session_settings.html

management/views.py

static/js/jquery-3.5.1.min.js