title: using theme for Fullcalendar
body: <p>I saw few themes demo in fullcalendar download package. In my application i have different calendars like Leave calendar , travel calendar and events calendar. I want to use different theme for each calendar. i set </p>
  
  <blockquote>
    <p>theme: true</p>
  </blockquote>
  
  <p>in my coding but exactly i dont know how to use the particular theme for that calendar.
  For ex, i want to use bootstrap 3 - Lumen theme for event calendar, where to get and include that css file. Or i have to make my own css theme file.</p>
  
  <pre><code>$(document).ready(function() {  
      $('#ConfCalendarBlock').fullCalendar({      
          header: {
              left: 'prev,next today',
              center: 'title',
              right: 'month,listMonth'
          },
  
          theme: true,    
          themeSystem:'bootstrap3',        
          height:400,
          editable: true, 
          displayEventTime: false,        
  
          events: modJs.getConfJsonUrl(),     
  
          loading: function(bool) {
              if (bool) $('#loadingConfCalendarBlock').show();
              else $('#loadingConfCalendarBlock').hide();
          },
  
          dayClick: function (date, jsEvent, view) {
  
                  modJs.getdayclick(date.format());               
          },          
          eventClick: function(calEvent, jsEvent, view) { 
              modJs.geteventclick(calEvent.id);
          },   
  
      }); 
  });
  </code></pre>
  
  <p>All my link files is included in header.php file</p>
  
  <pre><code> &lt;link href="&lt;?=BASE_URL?&gt;themecss/bootstrap.min.css" rel="stylesheet"&gt;
      &lt;script type="text/javascript" src="&lt;?=BASE_URL?&gt;js/jquery2.0.2.min.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript" src="&lt;?=BASE_URL?&gt;js/jquery-ui.js"&gt;&lt;/script&gt;
          &lt;!--fullcalendar--&gt;
  
      &lt;link href="&lt;?=BASE_URL?&gt;js/fullcalendar/fullcalendar.css" rel="stylesheet"&gt;
      &lt;link href="&lt;?=BASE_URL?&gt;js/fullcalendar/fullcalendar.print.css" rel="stylesheet" media="print"&gt;
      &lt;script src="&lt;?=BASE_URL?&gt;js/fullcalendar/lib/moment.min.js"&gt;&lt;/script&gt;
      &lt;script src="&lt;?=BASE_URL?&gt;js/fullcalendar/fullcalendar.min.js"&gt;&lt;/script&gt;
  </code></pre>