On the 'utf8-cmdline' branch: Update versions in the descriptions of newly
introduced functions to the post-1.15 era as it will not be any earlier than
that (1.15 has already been branched and this feature is not planed to be apart
of it).

* subversion/include/svn_client.h
  (svn_client_args_to_target_array4): Change @since 1.15->1.16.
  (svn_client_args_to_target_array3): Change @deprecated 1.14->1.15.
* subversion/include/svn_opt.h
  (svn_opt_args_to_target_array4): Change @since 1.15->1.16.
  (svn_opt_args_to_target_array3): Change @deprecated 1.5->1.15. This a
   mistake past me made, and the fix is slightly unrelated. It was suppose to be
   1.14 instead of 1.5.
  (svn_opt_parse_revprop3): Change @since 1.15->1.16.
  (svn_opt_parse_revprop2): Change @deprecated 1.14->1.15.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/utf8-cmdline@1932349 13f79535-47bb-0310-9956-ffa450edef68