title: How to input Unicode character in Rails console?
body: <p>While using Rails console, when I input <code>ä</code>, <code>\U+FFC3\U+FFA4</code> appears.
   Of course I can input Unicode characters outside of rails.</p>
  
  <p>I'm using Ruby 2.0.0p247, Rails 4.0.0 in Max OS X 10.7.5.</p>
  
  <p>How can I input Unicode characters in Rails console?</p>