BLTI-230

Align with Vicker's view of GUID flow.



git-svn-id: https://source.sakaiproject.org/svn/basiclti/trunk@127198 66ffb92e-73f9-0310-93c1-f5514f145a0a
BLTI-244

Catch all instances and up to 5000



git-svn-id: https://source.sakaiproject.org/svn/basiclti/trunk@127199 66ffb92e-73f9-0310-93c1-f5514f145a0a