LSNBLDR-236; use profiles to select between new hibernate tables and old


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/trunk@125324 66ffb92e-73f9-0310-93c1-f5514f145a0a
LSNBLDR-234; document the build profile


git-svn-id: https://source.sakaiproject.org/svn/lessonbuilder/trunk@125328 66ffb92e-73f9-0310-93c1-f5514f145a0a