Migrate away from React.createClass for views/dialogs. React 16 :D

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

src/components/views/dialogs/AddressPickerDialog.js

@@ -19,6 +19,7 @@ limitations under the License.
 
 import React from 'react';
 import PropTypes from 'prop-types';
+import createReactClass from 'create-react-class';
 
 import { _t, _td } from '../../../languageHandler';
 import sdk from '../../../index';
@@ -39,7 +40,7 @@ const addressTypeName = {
 };
 
 
-module.exports = React.createClass({
+module.exports = createReactClass({
     displayName: "AddressPickerDialog",
 
     propTypes: {