(split) Add -4/-6 shorthand for -finet/-finet6 in route(8) and netstat(8).

MFC after:	2 weeks
(split) Fix a logic error when checking if Tx power entries are greater than 31.
(split) - Fix some non-portable code with regard to endianness. Don't use memmove().
- Fix a range check for maximum transmit length.
- Fix read from missing field when transmitting data.

MFC after:	2 weeks
(split) Merge branch 'CURRENT' (commit 'cc5aa413')

Conflicts:
	sys/dev/usb/wlan/if_run.c