Introduce OpenEvent.apply
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/test/scala/com/githup/voles/inconcert/InConcertServiceSpec.scala
	src/test/scala/com/githup/voles/inconcert/MeetupClientSpec.scala
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/test/scala/com/githup/voles/inconcert/InConcertServiceSpec.scala
	src/test/scala/com/githup/voles/inconcert/MeetupClientSpec.scala