Switch to React 16.8

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/auth/VectorAuthFooter.js

@@ -15,14 +15,13 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-'use strict';
-
-const React = require('react');
+import React from 'react';
+import createReactClass from 'create-react-class';
 import SdkConfig from 'matrix-react-sdk/lib/SdkConfig';
 
 import { _t } from 'matrix-react-sdk/lib/languageHandler';
 
-module.exports = React.createClass({
+module.exports = createReactClass({
     displayName: 'VectorAuthFooter',
     statics: {
         replaces: 'AuthFooter',

src/components/views/auth/VectorCustomServerDialog.js

@@ -15,14 +15,15 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-const React = require("react");
+import React from "react";
+import createReactClass from 'create-react-class';
 import { _t } from 'matrix-react-sdk/lib/languageHandler';
 
 /**
  * This is identical to `CustomServerDialog` except for replacing "this app"
  * with "Riot".
  */
-module.exports = React.createClass({
+module.exports = createReactClass({
     displayName: 'VectorCustomServerDialog',
     statics: {
         replaces: 'CustomServerDialog',

src/vector/index.js

@@ -33,9 +33,6 @@ import React from 'react';
 // add React and ReactPerf to the global namespace, to make them easier to
 // access via the console
 global.React = React;
-if (process.env.NODE_ENV !== 'production') {
-    global.Perf = require('react-addons-perf');
-}
 
 import './modernizr';
 import ReactDOM from 'react-dom';