code: function clean(action, result, req, res, cb) {
  		// call the clean method in our options if it exists
  		// or we will just assume it is always clean
  		if (options.clean) {
  			return options.clean.apply(this, arguments);
  		}
  		return cb && cb();
  	}
docs: calls a method called 'clean' in our options that will
  perform any cleaning on the object being acted upon.
  If we're doing a create, then it gets cleaned before going into the DB
  If we're doing an update, then it gets cleaned before the response
  is sent
  
  @author Tim Golen 2015-03-01
  @access private
  
  @param  {string} action the CRUD actions being done
  @param  {object} result that needs to be cleaned
  @param  {object} req an Express or Restify Request object
  @param  {object} res an Express or Restify Response object
  @param  {Function} cb
  will pass a server error as the first argument if necessary
  
  @return {void}