title: Context menu for folder does not contain "Add to ignore list" tortoisegit
body: <p>I use TortoiseGit 1.8.16. But the context menu for a folder does not contain the "Add to ignore list" option.</p>
  
  <p>Right click on folder in repository. I expect to see "Add to ignore list" in context menu. This item is not in the context menu.</p>
  
  <p>How to add file in ignore via TortoiseGit?</p>