Experiments in controlling LEDs using Guile + Arduino

led-controller.scm is the current working daemon. It is licensed under
the GPLv3 as it is becoming a "real" program and will likely be
released on its own.

picker/* are from the raphael js graphics library demos and are MIT
licensed. They connect to the led daemon using GET requests to set the
current color.

fade3.scm, fade4.scm, and led-web.scm are hacks that gradually evolved
into led-controller.scm