LSNBLDR-421; fix caching issue


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@312764 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-421; allow cache in LessonsAccess to be disabled


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@312766 66ffb92e-73f9-0310-93c1-f5514f145a0a