background: PartialFunction literals don't work if they encounter
overload resolution, because scalac then complains about not fully
defined argument types.
- move akka.testing from akka-actor-tests to akka-testkit/akka.testkit
- move timeFactor from Testing to Duration and add .dilated method
- add Duration.{min, max}
- add TestKit.awaitCond
- use Duration.dilated on all max Durations in TestKit
- fix up loose ends
Conflicts:
akka-actor-tests/src/main/scala/akka/testing/Testing.scala
akka-actor-tests/src/test/scala/akka/actor/actor/ActorRefSpec.scala
akka-actor-tests/src/test/scala/akka/actor/supervisor/SupervisorSpec.scala
akka-actor-tests/src/test/scala/akka/routing/RoutingSpec.scala
akka-actor/src/main/scala/akka/util/Duration.scala
akka-remote/src/test/scala/remote/RemoteTypedActorSpec.scala
akka-testkit/src/main/scala/akka/testkit/TestBarrier.scala
akka-testkit/src/main/scala/akka/testkit/TestKit.scala
akka-typed-actor/src/test/scala/actor/typed-actor/TypedActorLifecycleSpec.scala