- testing the error status code emitted by OutputStreamAppender when a layout is set instead of an encoder

ClassicTestConstants.JORAN_INPUT_PREFIX

- added getFile method to ResilientFileOutputStream

- added JNDIBasedContextDiscriminator which should work much better than
ContextBasedtiscriminator.

 The console is not ours to close.

- renamed WriterAppender as OutputStreamAppender

- FileAppender now takes an encoder and not a layout

chapter on Encoders. Naming chapters by their number was a bas idea...

  removed the immediateFlush, BufferedIO properties from FileAppender

  Only immediateFlush can make a significant difference in presense of
  other IO activity on a mechanical HD.

both projects.

ObjectStreamEncoder and a corresponding InputStream called
EventObjectInputStream.

init(ObjectStream) method is called. The Encoder needs to reference
the OS passed to it in future operations. The enclosing Appender is
responsible of signaling the Encoder when the current OS is closed (by
invoking encopder.close()) and when a new one is opened (by invoking
encoder.inig(os));

- All tests pass.