title: Adding check marks to Bootstrap button drop-down items
body: <p>I am using Twitter bootstrap drop down button:</p>
  
  <p><a href="http://getbootstrap.com/components/#btn-dropdowns-single" rel="noreferrer">http://getbootstrap.com/components/#btn-dropdowns-single</a></p>
  
  <p>And I would like to add checkmarks (not necessarily checkboxes) to those list items that the user has selected. Is there style already built in do this or does someone already have a solution built for this?</p>
  
  <p>Thanks!</p>