KNL-1226 Marked the CacheRefresher as deprecated so no one will try to use it

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@308025 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1162 Hopefully final cleanups before 10 merge

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@308026 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1162 Hopefully final cleanups before 10 merge

git-svn-id: https://source.sakaiproject.org/svn/kernel/trunk@308034 66ffb92e-73f9-0310-93c1-f5514f145a0a