SAM-2324 allow range requests to the uploaded media (audio) so that chrome and other browsers can play it back properly


git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@308314 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAM-2329: Student cannot edit EMI response in Firefox

git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@308319 66ffb92e-73f9-0310-93c1-f5514f145a0a