title: Can't delete files in VS 2015 Setup project
body: <p>I have a normal VS 2015 Setup project (installed the extension, so it looks like the Setup projects of VS 2010 and older).</p>
  
  <p>In the 'File System on Target Machine' section, I've added a folder "MyAppFolder" and then added the primary output of one of the projects of the solution. VS then added a bunch of dll's as well.</p>
  
  <p>However, when I try to delete the folder it says:</p>
  
  <blockquote>
    <p>Cannot delete folder. Folder is not empty or it might contain excluded
    files, which are not shown.</p>
  </blockquote>
  
  <p>Well yes, it is not empty. If I right-click on a single dll file, the "Delete" option is disabled. </p>
  
  <p>I don't want this folder to be installed on the target machine. How do I get rid of this folder in my setup project?</p>