title: Popcorn.js Webmaker timeline
body: <p>In <a href="https://popcorn.webmaker.org/" rel="nofollow">popcorn webmaker project</a>, there is a time line in the bottom of the page and I would like to use this time line. But When I'm searching about time line for popcorn.js, it's always about creating event to happen at X time in the video.</p>
  
  <p>Me, I would like to get the code of the time line, to add band, zoom-in, zoom-out, be able to drag element in time and all others utils implement in this project.</p>
  
  <p>Under <a href="https://github.com/mozilla/popcorn.webmaker.org" rel="nofollow">webmaker source code</a>,  In public/src/ui/ they call it track and in public/src/timeline/, they call it timebar. I still don't get it... I just want to be able to use this tools and apply some modification. </p>
  
  <p>And I don't find any .html that include those script and any container, How do I create back this time line ? </p>