title: What these angular-cli do: inline.bundle.js, vendor.bundle.js, main.bundle.js?
body: <p>If I check the index.html file of angular 2 project created with angular-cli, I can see the page only include 3 files from dist folder:</p>
  
  <pre><code>inline.bundle.js
  vendor.bundle.js
  main.bundle.js
  </code></pre>
  
  <p>But now I am trying to understand what each file do. I wrote component with the angular-cli, I have downgrade so I can use it in another app written with angular 1. If I just add these 3 files to my index.html, plus adding app.module.ts file, seems like I have upgrade my app and everything is working. I'm trying to understand why, because the google angular tutorial does not talk  about angular-cli and how it can help with the migration.</p>