FXOLAT-478: login bg is displayed in ie9 without gradient, remains hidden in ie<=8
merge
OO-1316: group coach have the same rights as course coaches to access assessment tool and test statistics
OO-1317: allow concurrent editing of the same note
OO-1314: gracefully survive the scaling of a none existing image, show a warning with a message if the scaling of the image is not successful
OO-1318: clone the resume entry list, it prevents to work with deleted database objects
Merge OpenOLAT 9.4 to OpenOLAT 10.0 with 85eadbba42e21908b28a7bc8038cf7d37c2b4bee
OO-1319: set default sort to title, init the selection of sorters at start
Merge OpenOLAT 10.0 to OpenOLAT default branch with 3ab83fe2f7e019cef9d13295fe981d69ea260e7e
OO-1309: add edit option to the payment/booking methods of a course