Clean-up and fix various cross-pod tests. Include a test for cross-pod freebusy by proxies.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13714 e27351fd-9f3e-4f54-a53b-843176b1656c
Fix issues related to cross-pod sharing sync and property handling.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13715 e27351fd-9f3e-4f54-a53b-843176b1656c