[racket] charterm - new character terminal library

I just made a new library for character terminals, like "xterm", on 
GNU/Linux-like systems:

http://www.neilvandyke.org/racket-charterm/

My own first application for this will probably be an easy way to add a 
simple terminal-based management/status UI for server processes 
implemented in Racket.  So you'd SSH into the server machine, start 
server process in a "screen" session, then you have a little interface 
there you can watch, detach, and return to later.

Neil V.