KNL-1116 allow Kaltura iframes in default AntiSamy high policy


git-svn-id: https://source.sakaiproject.org/svn/kernel@129115 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1106 allow data image encoded src in AntiSamy policy


git-svn-id: https://source.sakaiproject.org/svn/kernel@129116 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1106 replace inadvertent tab with spaces


git-svn-id: https://source.sakaiproject.org/svn/kernel@129117 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1115 add support for HTML5 audio and video tags


git-svn-id: https://source.sakaiproject.org/svn/kernel@129118 66ffb92e-73f9-0310-93c1-f5514f145a0a