mailblink -- blink the leds on your keyboard when you have new mail

Version 0.3
  Cleaned up the signal code with some contributions from Paul
  Braman.  Added the -D flag to run in debugging mode without
  forking and disconnecting from the terminal.  Also modified
  the blinking itself slightly so it is possible to tell the
  original status of the light (also from Paul).

Version 0.1
  First release.
