docfixing
complete honeypot example and refactor negotiation

negotiation is now instintaneous by using tulip futures, and callbacks
begin_negotiation() and after_negotiation(state), where state reports
the WILL local/DO remote/unrplied pending of option negotiation
add wcwidth and license
make CHANGES file
add honeypot example
remove debug print
remove scrap code
add HoneyStream, snoops privacy-invasive ENV vars
ignore
import ref fixes
rename TelnetStreamReader to TelnetStream