code: function load() {
  		var newRules = Rules.rules;
  		Object.keys(newRules).forEach(function(ruleId) {
  			define(ruleId, newRules[ruleId]);
  		});
  	}
docs: Loads and registers all rules from passed rules directory.
  @param {String} [rulesDir] Path to rules directory, may be relative. Defaults to `lib/rules`.
  @returns {void}