Working our way up the API stack: bump svn_repos_get_logs to support
the move_behavior option.  This also implies that we need to assign
1-letter actions to the new change types:

- "V" for moved
- "E" for move-replaced (i.e. move to a previously deleted path)

* subversion/include/svn_repos.h
  (svn_repos_get_logs5): bumped API
  (svn_repos_get_logs4): depricate

* subversion/include/svn_types.h
  (svn_log_changed_path2_t): list the new action chars

* subversion/libsvn_repos/deprecated.c
  (svn_repos_get_logs4): implement in terms of svn_repos_get_logs5

* subversion/libsvn_repos/log.c
  (svn_repos_check_revision_access,
   detect_changed,
   fs_mergeinfo_changed): call new FS API; handle new change types
  (get_combined_mergeinfo_changes,
   fill_log_entry,
   send_log,
   do_logs, 
   handle_merged_revisions,
   do_logs): pass-through of new move_behavior parameter
  (svn_repos_get_logs4): replaced by ...
  (svn_repos_get_logs5): ... this one

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1525453 13f79535-47bb-0310-9956-ffa450edef68