Enable directory and property deltification as well as compressed
revprops by default -- for FSFS formats that support it.

* subversion/libsvn_fs_fs/fs_fs.c
  (read_config): Set the new defaults in the config parser.
  (write_config): Update the fsfs.config template.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1555286 13f79535-47bb-0310-9956-ffa450edef68