BLTI-262

Small cosmetic tweaks to pass the new, more picky IMS Certification test.



git-svn-id: https://source.sakaiproject.org/svn/basiclti/trunk@128209 66ffb92e-73f9-0310-93c1-f5514f145a0a
BLTI-230

Catch up with trunk.



git-svn-id: https://source.sakaiproject.org/svn/basiclti/branches/BLTI-230@128211 66ffb92e-73f9-0310-93c1-f5514f145a0a