LSNBLDR-190; add a permission check


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/trunk@118720 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-190; typo


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/trunk@118721 66ffb92e-73f9-0310-93c1-f5514f145a0a