KNL-1015 added better low security rules for embed/object

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@121947 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1048 Added extra security level option to formattedtext HTML filter (allows selecting HIGH,LOW,NONE when scanning content)



git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@121948 66ffb92e-73f9-0310-93c1-f5514f145a0a