LSNBLDR-399; respect upload limit; show	"loading" message


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@310781 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-397; needed one more fix to keep things consistent


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/branches/sakai-10.x@310782 66ffb92e-73f9-0310-93c1-f5514f145a0a