20030426:
- Fixed counter bug for wsrr scheduling
- Add per server statistics.

20030424:
- Add Redirections list + new hash (based on client address).
      This little workaround considerably improves natd incoming
      redirections/forwards speed (specially on heavy loaded servers),
      and uses less CPU time (ex for: _FindLinkIn 47% => 0.9% CPU time
      (according to gprof))
- Add two weighted round robin scheduling type, and prepare for more.
	Ex: A=1,B=2,C=3
	  rr: A,B,C,A,B,C,A,...
	  wrr: A,B,C,B,C,C,A,...
          wsrr: A,B,B,C,C,C,A,... (useless, for testing only)
- natd can now reload redirections/forwards (killall -HUP natd)
- Some fixes for PacketAliasRedirectAddr() and PacketAliasRedirectProto()