See #937 (DwC Darwin Core Support).

git-svn-id: svn://dev.exiv2.org/svn@3266 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3
#937.  Thanks to Alan for the patch code and data file.

git-svn-id: svn://dev.exiv2.org/svn@3267 b7c8b350-86e7-0310-a4b4-de8f6a8f16a3