Bug fix: The execution course sometimes does not exist, preventing that
case in the render that generates the statistics link when viewing the
curriculum of the student
Enhancement: updated the library version that has a much more cleaner
output log
Bug fix:
- resolved interface issues with columns, max columns is bigger now
- the access to the statistics link is now as intended, only the student
itself can access and only if it has an active registration
Added method for looking up user aliasses in other applications.
Bug Fix: When using CAS, redirect to the CAS logout page if the authentication fails