notifications, statistics in assessment tool..., add missing roles to
max age policy configuration

to curriculum coaches and participants and assessment tool

the toolbar

OO-3477: remove uncalculated statistics, remove user property from logging table in setup script, adapt creation and update of the temporary table for course statistics

OO-3295: update hibernate to version 5.3 (JPA 2.2), infinispan 9.2 and use the new streaming API in some key queries

OO-3477: really remove initial author from repository entry, update course log with the new policy of user properties, springify export manager and co., make logging object annotation based

OO-2924: delete the three specialized course log exporter, remove the explanation in the spring file

OO-2531: implement print and download raw dat for QTI 2.1 in statistics views, refine list of users seen by admin, authors, coaches in statistics (courses and resources) and in asessment tool

OO-1593: implementation reset of users data in QTI 2.1 course element and resource, add statistics for resource...

OO-2041: upgrade hibernate and infinispan, update mapping to use TableGenerator with legacy-hilo optimizer