- Count global pf(4) statistics in counter(9).
- Do not count global number of states and of src_nodes,
  use uma_zone_get_cur() to obtain values.
- Struct pf_status becomes merely an ioctl API structure,
  and moves to netpfil/pf/pf.h with its constants.
- V_pf_status is now of type struct pf_kstatus.

Submitted by:	Kajetan Staszkiewicz <vegeta tuxpowered.net>
Sponsored by:	InnoGames GmbH
Update iwn(4) and iwnfw(4) man pages to reflect all available firmware.

MFC after:	1 week
Sync list of supported devices in the man page with the driver.

MFC after:	1 week