title: Showing custom taxonomy column in custom posts type listings
body: <p>I have created a custom post type named <strong>banners</strong>. Thereby I register a new taxonomy called <strong>location</strong> that specifies on which page the banner is to be shown. Everything is great however when I click on the custom posts type 'Banner' in the admin window I see all the banners created however the table does not have a column for the taxonomy 'Location'.</p>
  
  <p>In other words I want to be able to see what location the banner is in, in the banners listing. </p>