title: Cannot read property 'class' of undefined
body: <p>I'm using the <code>fullCalendar</code> plugin with <code>fullCalendar extension: https://github.com/mherrmann/fullcalendar-columns</code></p>
  
  <p>now in the setup the authour suggest to import in the script <code>fullcalendar.js</code> but I need to use <code>fullcalendar.min.js</code>. If I include <code>fullcalendar.js</code> the error above isn't displayed but all the <code>easyappointments</code> library is structured on the min version so I can't use the <code>fullcalendar.js</code>.. Anyway, if I import the <code>fullcalendar.min.js</code> I get this error:</p>
  
  <blockquote>
    <p>var AgendaView = fc.views.agenda.class || fc.views.agenda;</p>
  </blockquote>
  
  <p>in the class <code>fullcalendar-columns.js</code></p>
  
  <p>this is the jFiddle of the author: <a href="http://jsfiddle.net/jkmda709/2/" rel="nofollow">http://jsfiddle.net/jkmda709/2/</a>
  how you can see all working fine with the <code>fullcalendar.js</code> but if I import <code>fullcalendar.min.js</code> seems that custom class <code>fullcalendar-columns.js</code> is broken. </p>
  
  <p>How I can solve this problem? There's something must to change?</p>