v3.7.2

Improvements:

• Update Java test framework for programming exercises
• Add build trigger into test case dialog for programming exercises
• Unify assessment layout for modeling and text exercises
• Make sure that all local and session storage entries are deleted upon logout

Bugfixes:

• Change landing page for online courses to new exercise details page and remove the old courses page which was not working any more
• Fix problems in the notifications if the author is missing