add action/method to flush storage and reload the session

src/components/structures/MatrixChat.js

@@ -479,6 +479,14 @@ export default React.createClass({
             case 'logout':
                 Lifecycle.logout();
                 break;
+            case 'flush_storage_reload':
+                // flushStorageAndReload will dispatch actions
+                // which we can't do in a dispatch handler
+                // so yield first
+                setTimeout(() => {
+                    Lifecycle.flushStorageAndReload();
+                }, 0);
+                break;
             case 'start_registration':
                 this._startRegistration(payload.params || {});
                 break;