KNL-1230 Remove deprecated use of MultiRefCache and add in new caching implementation for the security unlock checks
This still uses the legacy MRC when legacy is enabled (for 10 compatibility)



git-svn-id: https://source.sakaiproject.org/svn/kernel@309144 66ffb92e-73f9-0310-93c1-f5514f145a0a
KNL-1162 forcing memory service to legacy for the 10 release



git-svn-id: https://source.sakaiproject.org/svn/kernel@309145 66ffb92e-73f9-0310-93c1-f5514f145a0a