Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

When building a kernel or the loader, let the hostname be overridden

Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson

setlocale(3) has been fixed to match POSIX standard:
LC_ALL takes precedence over other LC_* envariables.

Add $FreeBSD$

Reconcile all the loader newvers.sh's into one common one.