Created at 2002-5-9 with HTB3 in beta testing stage

2002-5-9:
	- Fixed typo in tc/Makefile, thanks to Gareth Segree for the report
	- Fixed rb_color clearing in htb_change_class (crash if class changed
	  under load). Thanks to Andreas Lehrbaum for the report.

2002-5-12:
	- Added debug code after all PSCHED_TIME_DIFF_SAFE calls
	- Added versioning into pkt_sched.h, sch_htb.c and q_htb.c
	  versions are reported into kernel log at htb_init start,
	  in tc qdisc add htb help and in tc -d qdisc show. Versioning
	  will also prevent you to compile if you have bad includes.

2002-5-18 (3.4):
	- Added patch fixing bug present in all 2.X kernels. 2.4.19pre5
	  changed PSCHED_TIME_DIFF_SAFE uncovering the bug. I hope it will
	  be fixed in final 2.4.19.

2002-5-21 (3.5):
	- In last patch I forget to increment minor number.
	- use net_ratelimit to stop logs from being flooded by errors
	- more extensive debugging - we are still hunting two bugs

2002-5-25 (3.6):
	- Fixed two spurious warnings, one about big mindelay in case when
	  there is non-work conserving child and one about bad delay in
	  wait tree (the delay can be as big as mburst is for inner class)
