RSTR-66 add roster2 to experimental build, remove pure-poms, hybrid (breaking build)

git-svn-id: https://source.sakaiproject.org/svn/sakai/trunk@130930 66ffb92e-73f9-0310-93c1-f5514f145a0a
RSTR-66 add roster2 to experimental build

git-svn-id: https://source.sakaiproject.org/svn/sakai/trunk@130931 66ffb92e-73f9-0310-93c1-f5514f145a0a