title: Fullcalendar v2.x month view bug on IE8
body: <p>I have a problem using Fullcalendar (v2+) : monthView seems to be broken on IE8 even on a minimal install from the demonstration pages. All other viewModes are OK.</p>
  
  <p>See this fiddle for reproduction (on IE8) : <a href="http://jsfiddle.net/pn6u3oa7/embedded/result/" rel="nofollow noreferrer">http://jsfiddle.net/pn6u3oa7/embedded/result/</a>
  If you load this same fiddle on Chrome or FF, you'll see the correct rendering.</p>
  
  <p>And a capture of the bug : <img src="https://i.stack.imgur.com/AW5y4.png" alt="enter image description here"></p>
  
  <p>JS code is from documentation and is very minimal :</p>
  
  <pre><code>$(document).ready(function() {
  
    $('#calendar').fullCalendar({
      header: {
        left: 'prev,next today',
        center: 'title',
        right: 'month,agendaWeek,agendaDay'
      },
      defaultDate: '2014-06-12',
      defaultView: 'month',
      editable: true,
      events: [
        {
          title: 'All Day Event',
          start: '2014-06-01'
        }
      ]
    });
  });
  </code></pre>
  
  <p>Maybe I am missing something ?</p>
  
  <p>Thanks</p>