title: How to set default alias on cloudControl
body: <p>I have a cloudControl app and have added <code>TXT</code> and <code>CNAME</code> entries for the alias settings in order to make the app available under my own domain. Now when I make a</p>
  
  <pre><code>$ cctrlapp myapp/default alias
  </code></pre>
  
  <p>on my app, I get something like</p>
  
  <pre><code>Aliases
      name                                   default  verified
      myapp.cloudcontrolapp.com                  1        1
      myapp.cloudcontrolled.com                  1        1
      www.myapp.com                              0        1
  </code></pre>
  
  <p>How can I unset default for the first two entries and set default for my own domain?</p>