title: dayRender not properly working in fullcalendar on given dates
body: <p>I am using fullcalendar for day event booking.I want to make some day color change based on given dates.But it render the color in the whole calendar.It makes all the cell green.
  Here is the code,</p>
  
  <pre><code>dayRender: function (date, cell) {
      var disabledDates = ["2017-08-17","2017-08-23"];
      if ($.inArray(date.format("YYYY-MM-DD"),disabledDates)) {
          //alert("success");
          cell.css("background-color", "green");
      }
  }
  </code></pre>