akka actor with constructor
added brute force shutdown of actor system
Simple Akka example: Ping Pong
http://alvinalexander.com/scala/scala-akka-actors-ping-pong-simple-example

Simple run by calling :
sbt run
and selecting PingPong
Simple Akka example: Ping Pong
http://alvinalexander.com/scala/scala-akka-actors-ping-pong-simple-example

- Added rude shutdown hook including a thread.sleep (until I fugured out how to do it properly)
Not being an elegant solution aside, the thread.sleep method shows akka is running async.