SAM-2305: Availability and Submissions needs to be condensed

git-svn-id: https://source.sakaiproject.org/svn/sam/branches/sakai-10.x@308238 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAM-2299: About this Assessment section needs to be condensed

git-svn-id: https://source.sakaiproject.org/svn/sam/branches/sakai-10.x@308239 66ffb92e-73f9-0310-93c1-f5514f145a0a