Remove use of deprecated React.PropTypes

Replace all uses of React.PropTypes with PropTypes and importing PropTypes from
'prop-types'.

src/components/structures/LoggedInView.js

@@ -18,6 +18,7 @@ limitations under the License.
 
 import * as Matrix from 'matrix-js-sdk';
 import React from 'react';
+import PropTypes from 'prop-types';
 import { DragDropContext } from 'react-dnd';
 import HTML5Backend from 'react-dnd-html5-backend';
 
@@ -44,23 +45,23 @@ const LoggedInView = React.createClass({
     displayName: 'LoggedInView',
 
     propTypes: {
-        matrixClient: React.PropTypes.instanceOf(Matrix.MatrixClient).isRequired,
-        page_type: React.PropTypes.string.isRequired,
-        onRoomCreated: React.PropTypes.func,
-        onUserSettingsClose: React.PropTypes.func,
+        matrixClient: PropTypes.instanceOf(Matrix.MatrixClient).isRequired,
+        page_type: PropTypes.string.isRequired,
+        onRoomCreated: PropTypes.func,
+        onUserSettingsClose: PropTypes.func,
 
         // Called with the credentials of a registered user (if they were a ROU that
         // transitioned to PWLU)
-        onRegistered: React.PropTypes.func,
+        onRegistered: PropTypes.func,
 
-        teamToken: React.PropTypes.string,
+        teamToken: PropTypes.string,
 
         // and lots and lots of other stuff.
     },
 
     childContextTypes: {
-        matrixClient: React.PropTypes.instanceOf(Matrix.MatrixClient),
-        authCache: React.PropTypes.object,
+        matrixClient: PropTypes.instanceOf(Matrix.MatrixClient),
+        authCache: PropTypes.object,
     },
 
     getChildContext: function() {