Revert "changed message class to hold messages in arrayList"

This reverts commit 0762e8a5fef220cd24c2ebfcdcb00ef31e8404e2.

Conflicts:
	AkkaRemoteEchoServer/target/akkaRemote2-0.0.1-SNAPSHOT-akka.zip
	AkkaRemoteEchoServer/target/akkaRemote2-0.0.1-SNAPSHOT-akka/akkaRemote2-0.0.1-SNAPSHOT/deploy/akkaRemote2-0.0.1-SNAPSHOT.jar
	AkkaRemoteEchoServer/target/akkaRemote2-0.0.1-SNAPSHOT-akka/akkaRemote2-0.0.1-SNAPSHOT/lib/akkaRemote2-0.0.1-SNAPSHOT.jar
	AkkaRemoteEchoServer/target/akkaRemote2-0.0.1-SNAPSHOT.jar
	AkkaRemoteEchoServer/target/maven-archiver/pom.properties
deleted target folder