FromConfig 492

This PR only adds tests to verify the inconsistent behavior of `FromConfig` for routers using `LocalActorRefProvider` and `RemoteActorRefProvider`

We need to decide which one is correct, see #493 for more info
Yeah, this is the problem code I referenced in #492 - the RemoteActorRefProvider should leave deployment information untouched for local actors. Remote-deployed ones are fair game of course.