delete_file_func: prepared for deleting associated thumbnails in a proper manner                   this doesn't mean that deleting files works
delete_file_func: prepared for deleting associated thumbnails in a proper manner
                  this doesn't mean that deleting files works


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@3833 67ed7778-7388-44ab-90cf-0a291f65f57c

gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION,gphoto/libgphoto2.OLDMIGRATION