title: fullCalendar today button custom behavior
body: <p>I have troubles with <a href="http://fullcalendar.io/" rel="nofollow">fullCalendar</a>. I am using week view(defaultView: 'basicWeek'), and the toolbar buttons 'today', 'prev', 'next'. And when I click 'today' button is clicked calendar navigates back to current week, but date selection doesn't change. I want calendar to navigate to current week and select today date on the calendar. But I am having troubles with redefining 'today' button click event.</p>
  
  <p>Code sample: <a href="https://plnkr.co/edit/dv9yiq1CdJxfFTsDg4Yx?p=preview" rel="nofollow">https://plnkr.co/edit/dv9yiq1CdJxfFTsDg4Yx?p=preview</a>    </p>
  
  <pre><code>defaultView: 'basicWeek',
              defaultDate: '2016-01-12',
              selectable: true,
              selectHelper: true,
              select: function(start, end) {
                console.log('select');
                  var title = prompt('Event Title:');
                  var eventData;
                  if (title) {
                      eventData = {
                          title: title,
                          start: start,
                          end: end
                      };
                      $('#calendar').fullCalendar('renderEvent', eventData, true); 
                  }
                  $('#calendar').fullCalendar('unselect');
              }
  </code></pre>
  
  <p>I want a popup(alert) for today date to appear when I clicked 'today' button in this case.So basicly the button click not only navigate me to current week, but to select current day.</p>