title: Outlook365 Add-In Event on Change Attendee Action
body: <p>I am working on to creating Outlook ADD-In for Outlook365 cloud account.
  I want to capture event on  attendees change i.e rather than manually clicking on Add-In icon for every change, if someones Add or remove some attendee from calendar invite, the event can be captured and some java script function can be called in my Add-In app.</p>