DelayActorSpec frequently fails tests in EchoDelaySvc

[akara]

While this is happens in app at https://github.com/akara/echodelaysvc, we need to check there is no issue within the squbs-testkit causing this issue.

- should report the delay compensation *** FAILED ***
[info]   java.util.NoSuchElementException: key not found: total-compensate
[info]   at scala.collection.MapLike$class.default(MapLike.scala:228)
[info]   at scala.collection.AbstractMap.default(Map.scala:59)
[info]   at scala.collection.MapLike$class.apply(MapLike.scala:141)
[info]   at scala.collection.AbstractMap.apply(Map.scala:59)
[info]   at org.squbs.echodelaysvc.DelayActorSpec$$anonfun$1$$anonfun$apply$mcV$sp$3.apply(DelayActorSpec.scala:99)
[info]   at org.squbs.echodelaysvc.DelayActorSpec$$anonfun$1$$anonfun$apply$mcV$sp$3.apply(DelayActorSpec.scala:94)
[info]   at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
[info]   at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
[info]   at org.scalatest.Transformer.apply(Transformer.scala:22)
[info]   at org.scalatest.Transformer.apply(Transformer.scala:20)