RayRoestenburg/scala-io-exercise-3 — pull request #1 by jboga (2013-10-31 08:19:43+00:00)
Title: Receptionist has to be a class (not a trait)

As a trait, there is no default constructor, so the actor cannot be instantiated. 'sbt run' generates: java.lang.IllegalArgumentException: no matching constructor found on interface com.xebia.exercise4.Receptionist for arguments []