Vuex (#8041)

* add vuex, cleanup client directory and create example components

* disale sample unit test

* disable import for non existing file

* correct regexp for unit tests, add simple test to avoid error, add babel-polyfill for Vuex

* add line wrongly removed, update regexp

website/client/router.js

@@ -1,7 +1,7 @@
 import Vue from 'vue';
 import VueRouter from 'vue-router';
-import Hello from './components/Hello';
-import Sub from './components/Sub';
+import Home from './components/home';
+import Page from './components/page';
 
 Vue.use(VueRouter);
 
@@ -9,7 +9,7 @@ export default new VueRouter({
   mode: 'history',
   base: __dirname,
   routes: [
-    { path: '/', component: Hello },
-    { path: '/sub', component: Sub },
+    { path: '/', component: Home },
+    { path: '/page', component: Page },
   ],
 });