anchor.diff:  -behaviour(gen_server).
   
   %% gen_server callbacks
  --export([start_link/0, init/1, handle_call/3, handle_cast/2, 
  +-export([start_link/0, init/1, handle_call/3, handle_cast/2,
            handle_info/2, terminate/2, code_change/3]).
   
   -export([healthcheck/0, incr/1, incr/2, cached/0]).
  
positive.code: %% Copyright (c) 2010 Jacob Vorreuter <jacob.vorreuter@gmail.com>
  %% 
  %% Permission is hereby granted, free of charge, to any person
  %% obtaining a copy of this software and associated documentation
  %% files (the "Software"), to deal in the Software without
  
negative.code: %% copies of the Software, and to permit persons to whom the
  %% Software is furnished to do so, subject to the following
  %% conditions:
  %%
  %% The above copyright notice and this permission notice shall be
  %% included in all copies or substantial portions of the Software.
  %%
  %% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  %% EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  %% OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  