SAK-26085 - Calendar Service depends on a thread local for lookup


git-svn-id: https://source.sakaiproject.org/svn/calendar/trunk@314779 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-26085 - Reverse merged pending someone writing a better cache.


git-svn-id: https://source.sakaiproject.org/svn/calendar/trunk@314780 66ffb92e-73f9-0310-93c1-f5514f145a0a