title: How to use bower package manager with access restricted dependencies
body: <p>How do you add an access restricted repo as dependency to your bower.json without providing the user credentials in the bower.json?</p>
  
  <p>i.e. I want to avoid specifying it like this:</p>
  
  <pre><code>{
    "dependencies": {
      "angular": "~1.0.6",
      "restricted": "https://&lt;username&gt;:&lt;password&gt;@gitserver.tld/restricted"
    }
  }
  </code></pre>
  
  <p>I'd rather like bower / git ask me for credentials during install.</p>