OO-963: fix disabling user tools
OO-1211: don't freeze the GUI if the info message don't find the o_top mark
OO-1226: check if the file exists instead of generating an excpetion
Merge OpenOLAT 10 to OpenOLAT default branch with ac935d92fe1dd673022a0e210ad47a952dcc2db1
OO-1229: remove o_gp_member_v