title: UITableView invoke swipe actions programmatically
body: <p>I have a UITableView where the user can swipe left to reveal actions (like in iOS 8 mail). That all works as expected. I want to trigger this when the user taps on a certain part of the cell. How can I invoke this slide action programmatically?</p>
  
  <p>Current behavior: User must swipe the cell left to disclose the action buttons.</p>
  
  <p>Desired behavior: User taps (an actions button) on the cell. Cell slides over to disclose the action buttons. </p>