title: Change the title of the edit button iPhone
body: <p>I have a tableview with an edit button on the left. </p>
  
  <p>I created this edit button using</p>
  
  <pre><code>self.navigationItem.leftBarButtonItem = self.editButtonItem;
  </code></pre>
  
  <p>I want to know how to change the title of the Edit button to 'delete'</p>
  
  <p>Cheers</p>