markuspoerschke/iCal — pull request #22 by navarr (2014-09-08 17:36:53+00:00)
Title: An event does not need to have a DTEND/DURATION element

From what I can tell, a VEVENT does not need a DTEND nor a DURATION element. However, failing to specify one with your library results in a PHP error.

I've done my best to maintain your code style. All tests continue to pass.