LSNBLDR-428; typos in messsages


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@313747 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSBNDLR-429; don't use the word Sakai in messages


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@313748 66ffb92e-73f9-0310-93c1-f5514f145a0a