title: How to iterate over case insensitive sorted dictionary items?
body: <p>Example:</p>
  
  <pre><code>&gt;&gt;&gt; d = {'answer':1, 'Question':2}
  &gt;&gt;&gt; for i, j in sorted(d.items()): print i
  Question
  answer
  </code></pre>
  
  <p>I would like case insensitive list:</p>
  
  <pre><code>answer
  Question
  </code></pre>
  
  <p>and I believe it can be done in simple Pythonic way.</p>