fix schema version


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13734 e27351fd-9f3e-4f54-a53b-843176b1656c
inviteUserToShare -> inviteUIDToShare; uninviteUserFromShare -> uninviteUIDFromShare


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13735 e27351fd-9f3e-4f54-a53b-843176b1656c
Allow group and individual sharee at the same time.  Use higher-level sharing API for group sharee mods.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@13736 e27351fd-9f3e-4f54-a53b-843176b1656c