SAK-25480

Disallow the old settings service on LTI 2.x placements and disallow
the LTI 2.x settings service on LTI 1.x placements.

Also fix NPE and performance issue in doEdit in SakaiIFrame.java by
looking the content id up from the source versus looping through all
of the content items looking for SITE and title.



git-svn-id: https://source.sakaiproject.org/svn/basiclti/trunk@132745 66ffb92e-73f9-0310-93c1-f5514f145a0a