anchor.diff:        calendarEventClickCb(event, jsEvent, view)
       eventRender: (event, element, view) ->
         eventRenderCb(event, element)
  +    loading: (isLoading, view ) ->
  +      loadingCb(isLoading, view)
   
   
   
  
positive.code:       for tag in event.tags
          html += "<span class='label label-success text-white'>#{tag.name}</span> "
        element.find('.fc-title').append("<br/>"+html)
      return
  
  ]
  
  
negative.code:     if ($(jsEvent.target).hasClass('remove-event'))
        Availability.delete id: event.id, ->
          uiCalendarConfig.calendars.calendar.fullCalendar 'removeEvents', event.id
  
          growl.success(_t('the_slot_START-END_has_been_successfully_deleted', {START:moment(event.start).format('LL LT'), END:moment(event.end).format('LT')}))
        ,->
          growl.error(_t('unable_to_delete_the_slot_START-END_because_it_s_already_reserved_by_a_member', {START:+moment(event.start).format('LL LT'), END:moment(event.end).format('LT')}))
      # if the user has only clicked on the event, display its reservations
  