More reliable strategy for getting deepmost component + addition of refresh() method + example & documentation on asynchronous updates

examples/vuex-async/app.js

@@ -0,0 +1,9 @@
+import assign from 'object-assign'
+import Vue from 'vue'
+import store from './store'
+import router from './router'
+import App from './App.vue'
+
+const app = new Vue(assign(App, { router, store }))
+
+app.$mount('#app')