title: How to create an ics-File?
body: <p>I want to make a app which can create a new event and send it to other persons.
  So I thought it might be possible to create an ics-File of an EKEvent and send it away via email.</p>
  
  <p>But I don't know how to create such a file from an EKEvent.
  How does it work?</p>
  
  <p>Thanks.</p>