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