anchor.diff:  
   -export([start/1]).
   -export([supports_extension/1]).
  --export([enqueue/1, get_queue/0, skip/0, clear_queue/0]).
  +-export([enqueue/1, get_queue/0, skip/0, pause/1, clear_queue/0]).
   -export([init/1, handle_call/3, handle_info/2]).
   
   -export([join/2]).
  
positive.code:     Q = State#state.queue,
      case State#state.status of
  	idle -> {idle, Q};
  	{playing, Entry, _PlayerDetails} -> {{playing, Entry}, Q}
      end.
  
  act_and_reply(State) ->
  
negative.code: enqueue(Urls) -> gen_server:call(player, {enqueue, Urls}).
  get_queue() -> gen_server:call(player, get_queue).
  skip() -> gen_server:call(player, skip).
  pause(On) -> gen_server:call(player, {pause, On}).
  clear_queue() -> gen_server:call(player, clear_queue).
  
  %---------------------------------------------------------------------------
  