OO-1290: revised sass compilation for ie9 because of css selector count limitations
no-jira: remove system.out
OO-1279: close stream from internal resources in QTI results, template for Mail, OpenXML generator
Merge OpenOLAT 9.4 to OpenOLAT 10.0 with 0d12143b032cddda4a0295566c301b8d4f144765
OO-1295: fix the order how a template and its sub rows are deleted
no-jira: fix menu.html log error from velocity, fix warnings
Merge OpenOLAT 10 to OpenOLAT default branch with cff14421dc1381c241d88c1e3c9d5fac90233461
no-jira: fix warnings