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)

The last big commit: let usr.sbin/ use WARNS=6 by default.

Modify acpidump to use iasl(8) as the backend for disassembling AML.
Also clean up the output of dumped tables. Update the man page for the
new usage. Make WARNS=6 clean.

Fix UserTerms disassembling. Now that dumped ASL can be compiled with
ports/devel/acpitools (iasl).
- Merge AML parser to build ACPI namespace
- Comment header info. out so that ASL compiler ignore them
- Fix DSDT header size to be discarded when DSDT file is specified
for input (acpidump and amldb)
- Write DSDT header as well into DSDT file for output
- Fix some trivial typo (Concatenate and SizeOf)
- Remove DEBUG_FLAGS from Makefile (acpidump and amldb)

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for usr.sbin/ to 8.

Add manpages acpi userland tools.

Obtained from: ACPI for FreeBSD project

This commit was generated by cvs2svn to compensate for changes in r65285,
which included commits to RCS files with non-trunk default branches.

import acpidump(8) from ACPI For FreeBSD project.

Obtained from: ACPI For FreeBSD project