OO-985: implements the view to retrieve the course and associated data of a user, filter and order by, clean up the code

no-jira: fix the error in perf500 test in PropertyTest, remove reference to log4j logger in tests, remove duplicate closeSession in @after

OO-538: unify our implementation to retrieve entity managers with spring, remove wrapper classes to acesss directly transaction and entity manager, don't cache them anymore in our code, @Transactional fully functional, add some sleep in unit tests to wait from the new asynchronous multi user events

Merge: fix the unit LockTest and make easier to find a spring configuration error with it, update arquillian deployer

Merge: fix the unit tests, remove mocked startup of OpenOLAT for the last 2 unit tests which need it, fix mysql index which are too long in setupDatabase.sql

OO-386: remove the async executor of the repository manager and replace it with a evict from cache, select for update, merge process

FXOLAT-309: reactivate the calendar tests, make the test of repository manager more reliable, add more close hibernate session in the different threads which are create in unit tests

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branch : bps