OO-661: more OO to user import process, search only by usernames...
OO-623: implement managed group/course flags and test them in the GUI
OO-652: revert the fix, need a better solution
Merge OpenOLAT 8.4 to OpenOLAT default branch with da7886e8694eb657fc0bf1672c66d1602dfa1067
OO-533: add a presentation page for the pools/groups
OO-623: fix 2 metamorphic queries