title: specify https port in play framework 2.0
body: <p>How do I specify which port for Play https to start on?  In Play 1.2.4 I would add to the application.conf:</p>
  
  <pre><code>https.port=9443
  </code></pre>
  
  <p>But Play 2.0 does not seem to support this anymore.  Also, this syntax plainly does not work:</p>
  
  <p><code>play start -Dhttps.port=9443</code></p>
  
  <p>although this way does work for regular http: <code>play start 9100</code></p>
  
  <p>Anyone know how to do this for https?</p>