Update and fixed typo

Author: joente

.babelrc

@@ -8,7 +8,7 @@
         ]
     ],
     "plugins": [
-        "@babel/plugin-proposal-class-properties",
+        "@babel/plugin-transform-class-properties",
         "@babel/plugin-transform-object-assign",
         "@babel/plugin-transform-runtime"
     ]

lib/index.d.ts

@@ -20,7 +20,7 @@ export class Store<T> {
     state: T;
     setState(newStateOrCallback: Partial<T> | ((prev: T) => Partial<T>), cb?: any): void;
     unregisterStore(): void;
-    listenerEmpty(): void;
+    listenersEmpty(): void;
 }
 
 export function Component(...args: any[]): any;

lib/index.js

@@ -24,7 +24,7 @@ import Component from './component.js';
 import { createActions, factoryActions } from './actions.js';
 import withVlow from './withVlow.js';
 var Vlow = {
-  version: '1.1.27'
+  version: '1.1.28'
 };
 Vlow.Store = Store;
 Vlow.Component = Component;