Pull up fix from branch:  Handle missing directory records when generating sharedDropboxACEs ( https://trac.calendarserver.org/changeset/13178/ )
Pull up fix from branch:  Handle missing directory records when generating sharedDropboxACEs ( https://trac.calendarserver.org/changeset/13178/ )


git-svn-id: 0c33e958600270102f91bf5868e396345dde476c@13593 e27351fd-9f3e-4f54-a53b-843176b1656c

red-hood/calendarserver,red-hood/calendarserver,red-hood/calendarserver,red-hood/calendarserver,red-hood/calendarserver,red-hood/calendarserver