License and Makefile

[eddelbuettel]

I so love this project and already pointed half a dozen friends to it. (I own a command-line tool for R called littler which can work as a filter; I also pointed John Kerl of mlr fame to it.)

Two things are missing, both pretty trivial:

• you should a license; I am personally happy with GPL (>= 2), other like MIT/BSD style or Apache but not having anything is actually prohibiting use
• maybe add a two-line Makefile? I know about -lcurses but then I am also one of those guys

[tenox7]

Done! Thanks. I love littler and mlr.