telnetlib is unable to connect to a few telnet daemons because of
improper IAC handling, heres an attached oneliner to reject WILL
messages which will allow many more telnet daemons to work with it,
namely FreeBSD.

interact() automatically uses this on Windows (where the
single-threaded version doesn't work).

the socket.

input.  When an EOF is read, break out of the loop instead of (by
default) writing an empty line (which doesn't do much good).  Don't
close self when falling through the loop.

optional timeout.  Also moved some imports around.

the Demos/cwilib directory).  Converted comments to doc strings and
used default arguments instead of *args.  Updated the example.