anchor.diff:      OldValue = call_node(Node, config, get, [Section, Key, ""]),
       ok = call_node(Node, config, set, [Section, Key, ?b2l(Value), Persist]),
       send_json(Req, 200, list_to_binary(OldValue));
  -% GET /_node/$node/config/Section/Key
  +% GET /_node/$node/_config/Section/Key
   handle_node_req(#httpd{method='GET', path_parts=[_, Node, <<"_config">>, Section, Key]}=Req) ->
       case call_node(Node, config, get, [Section, Key, undefined]) of
       undefined ->
  
positive.code:     Value ->
          send_json(Req, 200, list_to_binary(Value))
      end;
  % DELETE /_node/$node/config/Section/Key
  handle_node_req(#httpd{method='DELETE',path_parts=[_, Node, <<"_config">>, Section, Key]}=Req) ->
      Persist = chttpd:header_value(Req, "X-Couch-Persist") /= "false",
      case call_node(Node, config, get, [Section, Key, undefined]) of
  
negative.code:         call_node(Node, config, delete, [Section, Key, Persist]),
          send_json(Req, 200, list_to_binary(OldValue))
      end;
  % GET /_node/$node/_stats
  handle_node_req(#httpd{path_parts=[_, Node, <<"_stats">> | Path]}=Req) ->
      flush(Node, Req),
      Stats0 = call_node(Node, couch_stats, fetch, []),
  