title: How convert tilde (~) path the full website url
body: <p>In the database we are storing paths, like "~/SubDir/2015/A/B/1.jpeg".</p>
  
  <p>How do I easily convert that to my full website url, like <code>http://www.mywebsite.com/SubDir/2015/A/B/1.jpg</code>?</p>