LSNBLDR-379; export unsupported questions fails


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/lessonbuilder-1.4.x@309422 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-379; export with unsupport questions may fail


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/lessonbuilder-1.4.x@309425 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-340; somehow not all of the changes for this jira were checked into 1.4.x


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/lessonbuilder-1.4.x@309431 66ffb92e-73f9-0310-93c1-f5514f145a0a