[Netrexx-develop] address with stream

[Marc R. <re...@gm...>]

I have pushed an update to branch address-with which supports the ADDRESS WITH invocation with redirection to/from streams.

Now also the NetRexx program will exit when any IOException or InterruptedException occurs during processing of the 
external command.
This is an important change, as previously such exceptions were only 'said' on the console, but the program continued.

Now compiled NetRexx programs will exit(9) upon ADDRESS exception, interpreted programs will properly call RxQuit.
I'm still looking at making this behaviour identical..

But in the meantime, you can already test the code.

Marc