Bump to v4.0.2.

lodash.now/index.js

@@ -7,6 +7,15 @@
  * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
  */
 
+/** Detect free variable `global` from Node.js. */
+var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
+
+/** Detect free variable `self`. */
+var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
+
+/** Used as a reference to the global object. */
+var root = freeGlobal || freeSelf || Function('return this')();
+
 /**
  * Gets the timestamp of the number of milliseconds that have elapsed since
  * the Unix epoch (1 January 1970 00:00:00 UTC).
@@ -23,8 +32,8 @@
  * }, _.now());
  * // => Logs the number of milliseconds it took for the deferred invocation.
  */
-function now() {
-  return Date.now();
-}
+var now = function() {
+  return root.Date.now();
+};
 
 module.exports = now;