anchor.diff:  
   -module(couch_replicator_manager).
   -behaviour(gen_server).
  +-behaviour(config_listener).
   
   % public API
   -export([replication_started/1, replication_completed/2, replication_error/2]).
  
positive.code:     end.
  
  
  init(_) ->
      process_flag(trap_exit, true),
      net_kernel:monitor_nodes(true),
  
negative.code: % gen_server callbacks
  -export([start_link/0, init/1, handle_call/3, handle_info/2, handle_cast/2]).
  -export([code_change/3, terminate/2]).
  
  % config_listener callback
  -export([handle_config_change/5]).
  
  -include_lib("couch/include/couch_db.hrl").
  -include("couch_replicator.hrl").
  