20020213 version 0.03:
 Fixed a crash when icmp messages arrive (dest_unreachable, time_exceeded, 
 parameter_problem, source_quench, redirect).  Thanks to Josh Restivo for
 reporting the problem.



20011008 version 0.02:
 Introduced stateful inspection of packets.  Includes numerous changes however the
 command-line interface is identical.

0.01:
  Nothing yet.
