The almost-production release

* Support exporting a snapshot of the current dataset as csv
* Track the instructed status of students and highlight those not yet instructed
* Add logout button to the overview
* Improve ergonomics of the admin student view

The pre-production release

* License under AGPLv3
* Add development and deployment documentation
* Add analysis sites for admitted students and missing reworks
* Support for multiple years in one instance
* Add admin interface to manage years, experiments, events, students and tutors
* Add audit log which records all action of all users
* Store both username and matrikel of students (and allow searching for them)
* Display more specific errors on the client
* Only allow deleting students from empty groups and explain policy
* Redirect to previous location after logging in
* Several small bugfixes

The interactive update

* Make group overview interactive
* Add link to index to the group overview page

The grouping update

* New read-only group overview page
* New search box for searching groups
* Add link to index from the event page

The ergonomics release

* Static header bar for all pages
* Links to next and previous event in the event view
* New index view using boxes for the experiments
* Fix memory leak in rocket through updating state

The lucidity release

* Allow changing a group's desk number
* Show disqualified groups at the bottom and grey them out
* Fix group-add button being shown under the success-toast
* Improve error handling and code structure

The initial release