title: Render Jira Agile Burndown in chartist.js?
body: <h1>Issue</h1>
  <p>I'm using json data from jira to render a project's burndown chart. For reasons I won't go into, I can't use the built-in Jira Agile charts. I'm using chartist.js to render the burndown but I'm running into troubles and would appreciate a chartist.js user's input.</p>
  <p>I've attached an image of the chart I want to generate as a reference.</p>
  <h1>Problem</h1>
  <ol>
  <li>Burndown events happen more than once during the day. Each has its own time that it happened. I don't want to show the specific time each happened in the x axis label group. Is there a way to &quot;group&quot; the events for a given day on a specific day, but show that they didn't all happen at once?</li>
  <li>I want to create a burndown &quot;guideline&quot; (see the grey line in the attached image). Is there an easy way to have a line start from the top and finish at the bottom for a given time?</li>
  </ol>
  <h2>Asides</h2>
  <p>I've been enjoying using chartist.js, but I'm not married to it for my project, I can use any chart library I want. I would gladly accept suggestions for another charting library that does what I need it to.</p>
  <p><img src="https://i.stack.imgur.com/RZNmb.png" alt="The burndown chart as it appears in Jira. I need to duplicate this on my own" /></p>