Add a utility class that clones and adds a timestamp field (by default 'date') to any given object passed as argument

js/Time.js

@@ -0,0 +1,13 @@
+return {
+  timestamp: timestamp
+};
+
+function timestamp(o, field) {
+  var field = field || 'date';
+  var clone = {};
+  for(var key in o) {
+    clone[key] = o[key];
+  }
+  clone[field] = Date.now();
+	return clone;
+}