title: Force strings to UTF-8 from any encoding
body: <p>In my rails app I'm working with RSS feeds from all around the world, and some feeds have links that are not in UTF-8.  The original feed links are out of my control, and in order to use them in other parts of the app, they need to be in UTF-8.</p>
  
  <p>How can I detect encoding and convert to UTF-8?</p>