title: How to limit events per time slot in fullcalendar?
body: <p>Is it possible to limit <a href="http://arshaw.com/fullcalendar/" rel="nofollow">FullCalendar-2</a> to add events only in slot interval and limit it to 2?</p>
  
  <p>For example, users can add event only between 12:00:00 - 12:15:00, it is not possible to add longer event (12:00:00 - 12:30:00) and he can add it only if there is a 'free' slot. 
  Orage events are correct (max 2 events in time slot), events blue are wrong (over 2 events)</p>
  
  <p>Here's an example</p>
  
  <pre><code>$(document).ready(function() {
  
      // page is now ready, initialize the calendar...
  
      $('#calendar').fullCalendar({
                      header: {
                              left: 'prev,next today',
                              center: 'title',
                              right: 'agendaDay'
                      },
                      defaultView: 'agendaDay',
                      allDaySlot: false,
                      scrollTime: moment().format('HH:mm:ss'),
                      slotDuration: '00:15:00',
                      minTime: '06:45:00',
                      maxTime: '23:15:00',
                  editable: true,
              events: [
                  {
                      title: 'Meeting',
                      start: '2014-06-06T10:30:00',
                      end: '2014-06-06T10:45:00'
                  },
                  {
                      title: 'Lunch',
                      start: '2014-06-06T10:30:00',
                      end: '2014-06-06T10:45:00'
                  },
                  {
                      title: 'Birthday Party',
                      start: '2014-06-06T10:30:00',
                      end: '2014-06-06T10:45:00'
                  },
                  {
                      title: 'Meeting',
                      start: '2014-06-06T15:30:00',
                      end: '2014-06-06T15:45:00',
                      color: '#FF7F50'
                  },
                  {
                      title: 'Lunch',
                      start: '2014-06-06T15:30:00',
                      end: '2014-06-06T15:45:00',
                      color: '#FF7F50'
                  }
              ]
  
              });
  
  });
  </code></pre>
  
  <p>and live: <a href="http://jsbin.com/fezidowo/3/" rel="nofollow">http://jsbin.com/fezidowo/3/</a></p>