OO-1068: fix tooltip on link, add number of entries in table, hardened business control against null resource

OO-1131:  fix the dropdown menu which pops up on enter key, fix preview in QTI editor, use the same logic in referenceable search for id (search in id, softkey, externalId, externalRef)

OO-1068: 1 selenium test to test a catalog round trip, create categories in catalog, create course, add it to catalog, open my courses, navigate catalog until course is open

OO-1068:  update licenses, automatically include the NOTICE.TXT in the about.html, automatically languages informations and translators in about.html and current version of OpenOLAT

OO-1108: show very long range event where the begin is before the month shown by the calendar and the end date after

OO-964: implements the business path in the 2 catalog sites (in my courses and in the independent site)

OO-1000: remove the policy controller which doesn't show an accurate view of the rights of a person anymore (+ some unused stuffs)