sifled version 0.5 (September 2006)
* added usleep() to end of set_led() function to resolve issue with using
  single instance of sifled to drive multiple LEDs (thanks to Tom Eichstaedt)
* added -D parameter for detailed debugging to a text file (/tmp/sifled.log)
* significant changes to the way status/debug/verbose messages are logged

sifled version 0.4 (Nov 28 2002)
* fixed segmentation fault if monitoring ppp0 interface, and it was
  down for more than a few minutes (ie, if interface didn't exist in 
  /proc/net/dev)
* added -v parameter for verbose mode (use twice for more verbosity)

sifled version 0.3 (Jan 19 2002)
* in update_netproc, if failing to open /proc/net/dev, just populate bp with 0

sifled version 0.3 (Nov 17 2001)
* don't abort in update_netproc if failing to open /proc/net/dev
* "make clean" doesn't delete executable sifled anymore

sifled version 0.2 (Oct 19 2001)
* don't abort if specified interface isn't found, else if started on 
  Smoothwall before red interface is up, it fails

sifled Version 0.1 (Oct 06 2001)
* Added option to show Smoothwall RED iface active

ifled changelog:

Version 0.5 to 0.6 (Dec 11 1999)
* Rewrote much of the update_netproc code, now faster (?) and smaller
* Updated the README file
* Fixed the Makefile a bit

Version 0.4 to 0.5 (Oct 16 1999)

* Increased LED update delay to 50ms, solves some problems with keys getting
  stuck. Thansk to Mikko Hänninen <Mikko.Hanninen@iki.fi>
* Removed init script. Nobody used it, or?
* Added some problem solutions to the README file
* Fixed the help screen a bit
* General code clean-up

Version 0.3 to 0.4 (Oct 1 1999)

* Added README file
* Added ChangeLog
* Added alternativ (exprimental) kb code to get none config to work in console
* Fixed options to use bit flags
* Fixed none option to not touch LED status
  (suggested by Drew Wilcock <drew@routes.com> 
  and Mikko Hänninen <Mikko.Hanninen@iki.fi>)
* Added none option to help

Version 0.2 to 0.3 (Sep 28 1999)

* Fixed bug with the error led config
* Added drop, activity and collision
* General code clean-up
* Changed default led config and delay
* Made verison 0.3

Version 0.2 (Sep 26 1999)

* First release