Supporting Netty server with JXIO

[rosenbaumalex]

On top of JXIO's basic API we implemented the InputStream & OutputStream interfaces.

You can use the JxioConnection class getInputStream() & getOutputStream() to connect to the JxioConnectionServer which already implements a high level server model aimed to mimic Netty with support for the worker thread model.
See example here: https://github.com/accelio/JXIO/wiki/JxioConnection-Inputstream-and-Outputstream.

[yuyang733]

The JxioServerConnection seems to have a bug on the close session.