Fix document title.

Submitted by:	pluknet
Do not configure all pins as outputs as this can lead to short circuits when
the GPIO pin is connected to a push button (or other devices).

Instead keep the boot loader settings.

Calling ar71xx_gpio_pin_configure() with DEFAULT_CAPS was probably a
mistake and was causing all the pins to be set as outputs.
UDP-Lite uses SOCK_DGRAM, not SOCK_STREAM.
Comment out some pointless device open/close around reading device IDs.

FreeBSD ZFS port unlike OpenSolaris does not use device IDs, and does not
implement respective devid_*() fuctions.  It is pointless to open devices
just to close them back immediately.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
Fix -width argument to Bl -tag.
Simplify code slightly. Passing an array by &array[0] does work, but is
silly.
Print the entry address in addition to the object.  The variable is
typically optimized out and debuggers cannot find its value.

Sponsored by:	    The FreeBSD Foundation
MFC after:	1 week
When printing the map with the ddb 'show procvm' command, do not dump
page queues for the backing objects.  The queues are huge and clutter
the display, when mostly the map entries and its backing storage is
interesting.

The page queues can be seen with ddb 'show object' command.

Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Document WITHOUT_SYSCALL_COMPAT and WITHOUT_GNU_GREP_COMPAT.
Remove a few more vestiges of allowing WITHOUT_BMAKE to imply you want
to buid with fmake.
Optionally allow building the historical FreeBSD make program and
install it as fmake. This defaults to no. This should be viewed as the
first step towards evental migration of this historic code to ports
and removal from the tree.
Support, to the extent we generate proper command lines, compiling
with clang 3.3. Useful for test building -current on a -stable system
in individual directories. Potentially useful if we ever want to
support, say, gcc 4.8 or 4.9's new warnings when building with an
external toolchain (but such support not yet committed). Document
the bsd.compiler.mk interface.
Migrate NO_WARN to MK_WARN. Support legacy NO_WARN usage. Remove a
check for EARLY_BUILD because it isn't necessary (MK_WARN=no will
always be defined for that).
Eliminate EARLY_BUILD flag. It is redundant and means MK_CLANG_FULL=no
and MK_LLDB=no, so set those explicitly (now that we can do
that). Simplify tests for these variables as well, since we know they
will always be defined regardless of the phase of the build.
Simplify clang ifdefs in the kernel a bit. Introduce
CFLAGS.${COMPILER_TYPE} to mirror userland. Be explicit about which
compiler needs something (not clang isn't necessarily gcc in the
future).
Remove the compatibility hack for FreeBSD 7 systems for
MACHINE_CPUARCH. Fewer places to have to hack each time a new one is
added.
g/c unmaintained, uninstalled bsd.pkg.mk. It tied into the ports
system, as it existed 9 years ago, and has been obsolete for a long
time.
Remove some useless, commented out code. Remove name space polution in
the POSIX case by moving more things under !Posix part of an if.
Remove last two NO_MAN= in the tree. In both of these cases, MAN= is
what is needed.
We haven't done anything with _UPGRADING in ~forever (was present, but
not needed, in FreeBSD 6.x, and has been absent in newer versions).
This was needed to upgrade from 3.x -> 4.x, once upon a time.