Fix unauthenticated access to wiki calendars


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@14116 e27351fd-9f3e-4f54-a53b-843176b1656c
Some travel related properties are actually URI values not DATE-TIME.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@14117 e27351fd-9f3e-4f54-a53b-843176b1656c
Some travel related properties are actually URI values not DATE-TIME.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@14118 e27351fd-9f3e-4f54-a53b-843176b1656c
Pick up CDT changes.


git-svn-id: https://svn.calendarserver.org/repository/calendarserver@14119 e27351fd-9f3e-4f54-a53b-843176b1656c