Streamlined configuration, transport adapters and FailureInjector

- Transports no longer uses raw ActorRefs as listeners but proper interfaces.
 - Added managementCommand support to Transports
 - Added support for dynamically loadable transport adapters
 - Added throttler/failure injector transport adapter
 - added actor based adapter support
 - Changed configuration method of multiple transports - Fixed tests to work with the new remoting

akka-remote/src/test/scala/akka/remote/RemoteDeployerSpec.scala

@@ -18,7 +18,7 @@ object RemoteDeployerSpec {
           remote = "akka://sys@wallace:2552"
         }
       }
-      akka.remote.netty.port = 0
+      akka.remoting.transports.tcp.port = 0
       """, ConfigParseOptions.defaults)
 
   class RecipeActor extends Actor {