title: Error 'Dom7 is not defined' when starting Framework7 - Vue app with Webpack
body: <p>I just follow the instructions in the <a href="https://framework7.io/vue/templates.html#framework7-vue-webpack-app-template" rel="nofollow noreferrer">official website</a>: clone the repo, install node dependencies and run. But once I run the <code>npm run dev</code> command, when I open the app in the browser I get the following error:</p>
  
  <pre><code>&gt; Uncaught ReferenceError: Dom7 is not defined
  &gt;     at framework7.js:14213
  &gt;     at framework7.js:14317
  &gt;     at Object.&lt;anonymous&gt; (framework7.js:18375)
  &gt;     at Object.&lt;anonymous&gt; (vendor.9d7fa26….js:18538)
  &gt;     at n (bootstrap 4a945b6…:54)
  &gt;     at Object.&lt;anonymous&gt; (app.8e4833b….js:107)
  &gt;     at n (bootstrap 4a945b6…:54)
  &gt;     at window.webpackJsonp (bootstrap 4a945b6…:25)
  &gt;     at app.8e4833b….js:1
  </code></pre>
  
  <p>Can anyone help with this?</p>
  
  <p>The most strange thing is that everything worked okey a few days ago.</p>