title: What does "@" symbol mean in "import { Component } from '@angular/core';" statement?
body: <p>I'm reading Angular 2 <a href="https://angular.io/docs/ts/latest/quickstart.html" rel="noreferrer">"5 Min Quickstart"</a> and there is such a line:</p>
  
  <pre><code>import { Component } from '@angular/core';"
  </code></pre>
  
  <p>I can't figure out, what does <code>@</code> symbol make in that import? TypeScript docs also don't say anything about that.</p>
  
  <p>What does it mean?</p>