[change] avoid 'react-dom/lib/*' where possible

src/apis/AppRegistry/index.js

@@ -8,7 +8,7 @@
 
 import { Component } from 'react';
 import invariant from 'fbjs/lib/invariant';
-import { unmountComponentAtNode } from 'react-dom/lib/ReactMount';
+import { unmountComponentAtNode } from 'react-dom';
 import renderApplication, { getApplication } from './renderApplication';
 
 const emptyObject = {};

src/core.js

@@ -1,8 +1,5 @@
 import findNodeHandle from './modules/findNodeHandle';
-import ReactDefaultInjection from 'react-dom/lib/ReactDefaultInjection';
-import { render, unmountComponentAtNode } from 'react-dom/lib/ReactMount';
-
-ReactDefaultInjection.inject();
+import { render, unmountComponentAtNode } from 'react-dom';
 
 // APIs
 import I18nManager from './apis/I18nManager';

src/index.js

@@ -1,8 +1,5 @@
 import findNodeHandle from './modules/findNodeHandle';
-import ReactDefaultInjection from 'react-dom/lib/ReactDefaultInjection';
-import { render, unmountComponentAtNode } from 'react-dom/lib/ReactMount';
-
-ReactDefaultInjection.inject();
+import { render, unmountComponentAtNode } from 'react-dom';
 
 // APIs
 import Animated from './apis/Animated';

src/modules/findNodeHandle/index.js

@@ -1,2 +1,2 @@
-import findNodeHandle from 'react-dom/lib/findDOMNode';
-export default findNodeHandle;
+import { findDOMNode } from 'react-dom';
+export default findDOMNode;