title: Adding image next to a Title Header in UITableView
body: <p>I have created a UITableView using Group-style. I only have a single group in my table. </p>
  
  <p>Here are my two questions:</p>
  
  <p>1) How do I display a picture next to my title in the top header? Basically I would like to put the logo of our company next to that title.</p>
  
  <p>2) Can I change the background color (I don't like the grey one) in the header and can I adjust the height of that header?</p>