code: function parseClientAuth(data, callback) {
    authParser.parseAuth(data, function(err, data) {
      if (err) callback(err, null);
      callback(null, data);
    });
  }
docs: Parses the client authorization file.
  
  @param  {String}   data     Parsed array of client authorization data
  @param  {Function} callback Callback function accepting an error parameter