title: Jquery Fullcalendar when I change events source all properties are lost
body: <p>I'm trying to do some filters with arShow Jquery Fullcalendar and ajax web script.
  I create the fullcalendar this way (simplyfied):</p>
  
  <pre><code>$('#calendar').fullCalendar({
       firstDay: 1,
       selectable: true,
       events: 'somewebscript.php'
  });
  </code></pre>
  
  <p>But when I want to change events source from jquery event handler the "firstDay" and "selectable" parameters are lost. I use this:</p>
  
  <pre><code>$('#calendar').fullCalendar({ 
      events: 'somewebscript.php?showholidays=true' 
  });
  </code></pre>
  
  <p>Why? I only want to redraw the events array with same properties.</p>