title: New template in Umbraco, won't show on the Template drop down on content pages
body: <p>Another Umbraco question, apologies.
  I've created a new template in the Master templates list, but this template doesn't show up in the Templates drop down list on content pages.
  I'm wondering if there's something I've missed, or if there's a way to publish this which isn't immediately obvious.</p>
  
  <p>Any help appreciated.</p>