RMIIO 2.0.1 released

RMIIO 2.0.1

-Allow the default port for the DefaultRemoteStreamExporter to be configured via a system property.
-Make closing of local resources by a RemoteIteratorServer less prone to surprises.
-Change proxy utilities to use method code instead of string.
-Move EncodingInputStream to util package.
-Make RemoteStreamServer implementations Serializable by implementing writeReplace to automagically export the object and return the remote stub.
-Add the DirectRemoteInputStream as a last-ditch alternative for dealing with certain problematic scenarios.