title: Full Calendar adding images in the date
body: <p>I want to add additional icons on the date , For example on the calendar June 01 I can add an icon like a wine symbol on the said date instead of color. I tried to the following code but it wont work.</p>
  
  <pre><code>&lt;div id='calendar'&gt;&lt;/div&gt;
  
  &lt;script type="text/javascript"&gt;
      $(document).ready()
  
          $(function() {
  
    // page is now ready, initialize the calendar...
  
    $('#calendar').fullCalendar({
  
      events: [
      {
        title  : 'event1',
        start  : '2018-06-01',
        imageurl:'http://www.completecocktails.com/img/d/l/ShotInTheDark.png'
      },
      {
        title  : 'event2',
        start  : '2018-06-05',
        end    : '2018-06-07'
      },
      {
        title  : 'event3',
        start  : '2018-06-09T12:30:00',
        allDay : false // will make the time show
  
      }
    ]
     eventRender: function(event, eventElement) {
      if (event.imageurl) {
          eventElement.prepend("&lt;img src='" + event.imageurl +"' width='12' height='12'&gt;");
      }
  },
  </code></pre>