Last release with NWApp and NWSReader

Along with supporting chatbots, I am cleaning up.

Support for chatbots and conversational context

Added NWChat and its related goodies. Most of the basics needed [I think] for a chatbot.

Full support for segmented text

Version 2.0

Has arrived

Version 1.last

Last release before deleting version 1

Version 1.0

Implements most of the Narwhal spec. Has severe performance problems to be addressed in further releases.