Move batchedUpdated to React.addons

This is a followup to #1060, where I did not read closely enough before
merging.

src/browser/ReactWithAddons.js

@@ -31,6 +31,7 @@ var ReactComponentWithPureRenderMixin =
   require('ReactComponentWithPureRenderMixin');
 var ReactCSSTransitionGroup = require('ReactCSSTransitionGroup');
 var ReactTransitionGroup = require('ReactTransitionGroup');
+var ReactUpdates = require('ReactUpdates');
 
 var cx = require('cx');
 var cloneWithProps = require('cloneWithProps');
@@ -42,6 +43,7 @@ React.addons = {
   PureRenderMixin: ReactComponentWithPureRenderMixin,
   TransitionGroup: ReactTransitionGroup,
 
+  batchedUpdates: ReactUpdates.batchedUpdates,
   classSet: cx,
   cloneWithProps: cloneWithProps,
   update: update
@@ -53,4 +55,3 @@ if (__DEV__) {
 }
 
 module.exports = React;
-

src/browser/ui/React.js

@@ -41,7 +41,6 @@ var ReactPerf = require('ReactPerf');
 var ReactPropTypes = require('ReactPropTypes');
 var ReactServerRendering = require('ReactServerRendering');
 var ReactTextComponent = require('ReactTextComponent');
-var ReactUpdates = require('ReactUpdates');
 
 var onlyChild = require('onlyChild');
 
@@ -73,7 +72,6 @@ var React = {
   initializeTouchEvents: function(shouldUseTouch) {
     EventPluginUtils.useTouchEvents = shouldUseTouch;
   },
-  batchedUpdates: ReactUpdates.batchedUpdates,
   createClass: ReactCompositeComponent.createClass,
   createDescriptor: createDescriptor, // deprecated, will be removed next week
   createElement: createDescriptor,