title: Add End Time for FullCalendar's Week and Daily View
body: <p>I am using FullCalendar v2 now and I found it is quite useful. However, I have encountered a problem when I want to show the end time of an event.</p>
  
  <p>I want to show both start time and end time within a day in week and daily view like "09:00-17:00". I have found a solution in <a href="https://stackoverflow.com/questions/7237422/display-ending-time-in-fullcalendar-week-view-only">Display ending time in fullcalendar week view only</a> but it seems a v1 version. I use this in v2 and failed.</p>
  
  <p>How can I show both start time and end time within a day?</p>