* subversion/include/svn_fs.h
  (svn_fs_compare_ids): Was svn_fs_id_distance.
  (svn_fs_check_related): Update docstring.

* subversion/libsvn_fs/id.c
  (svn_fs_compare_ids): Was svn_fs_id_distance.

* subversion/libsvn_fs/tree.c
  (merge): Remove old usage of svn_fs_id_distance() from comment.
    svn_fs_id_distance => svn_fs_compare_ids.  Add some comments from
    Bill Tutt about post-merge predecessor updating.

* subversion/libsvn_repos/delta.c
  (find_nearest_entry): Removed.  Wasteful hack of a piece of C if I
    ever saw one.
  (svn_repos_dir_delta): svn_fs_id_distance => svn_fs_compare_ids.
  (delta_dirs):  svn_fs_id_distance => svn_fs_compare_ids.  No longer
    call find_nearest_entry.



git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/issue-654-dev@842131 13f79535-47bb-0310-9956-ffa450edef68