And following up on the recent diff work: properly report deleted properties
on deleted directories.

* subversion/libsvn_client/diff.c
  (diff_dir_added): Handle no_diff_added.
  (diff_dir_deleted): Produce property diff.

* subversion/libsvn_client/diff_local.c
  (svn_client__arbitrary_nodes_diff): Use proper default. With FALSE replaced
    nodes are first added and then deleted.

* subversion/tests/cmdline/diff_tests.py
  (diff_two_working_copies): Update expected result.

* subversion/tests/cmdline/merge_authz_tests.py
  (diff_unauth_parent): Update expected result. Fix test failure of r1570053.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1570055 13f79535-47bb-0310-9956-ffa450edef68