some events refacturing

library/moment/benchmarks/clone.js

@@ -0,0 +1,10 @@
+var Benchmark = require('benchmark'),
+    moment = require("./../moment.js"),
+    base = moment('2013-05-25');
+
+module.exports = {
+  name: 'clone',
+  onComplete: function(){},
+  fn: function(){base.clone();},
+  async: true
+};