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

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

MFC revisions 230804,254265,255908,256338,256345,256347-256348,256489,
257842-257845,257872,259115,259143,259276,259468-259469,259572,259686,
260260-260262,260866, and 260900 (25 revisions; summarized below)...
r230804: Fix a whitespace nit (kevlo)
r254265: (recording mergeinfo only)
r255908: Remove the is (Iceland) mirror per mail from the admins (brd)
r256338: Dump 4096 bytes from /dev/random to /entropy (des)
r256345: Rewrite the keymap module
r256347: Detect when an interface is wireless (Warren Block)
r256348: Merge dumpdev into regular services; enable (Allan Jude)
r256489: Add executable bit to docsinstall and entropy scripts
r257842: Performance and debugging enhancements
r257843: Remove ttys(5) munging from previous commit
r257844: Copy install log to deployed /var/log for debugging
r257845: Fixup to last commit
r257872: Doc fixup -- add missing .El (joel)
r259115: Prevent log file from becoming truncated
r259143: Use sed(1) /i instead of /I (eadler)
r259276: Fix `local: Not in a function' error in logfile
r259468: Ignore mouse-release command from VMware
r259469: Mask error from newaliases(1) when hostname not fully qualified
r259572: Fix `rm: /tmp/bsdinstall_etc/fstab: ..." error in logfile
r259686: Move VMware mouse-release solution
r260260: Remove what appears to be a stray debugging printf
r260261: Lower priority of open wireless access policy (gavin)
r260262: Allow bsdinstall to use WPA-Enterprise networks (gavin)
r260866: Fix bad comparison and fix file comment (Christoph Mallon)
r260900: Whitespace and style nits

MFC r254265:
Make sure bootonly.iso for -BETAs and -RCs use the releases/
directory on the FTP mirrors to fetch distributions, since
these are always pushed to releases/ during the release cycle.

Sync-up bsdinstall(8)/bsdconfig(8) list of mirrors.

SVN r253543:
Update mirror list to more closely match
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/mirrors-ftp.html

SVN r253545:
Sync-up with bsdinstall(8) FTP mirrorselect changes.

SVN r253566:
Remove ftp2.tr.freebsd.org, it is out of date.

Reviewed by: gjb

MFC miscellaneous bug fixes (r228042,228192,230522,232531,233473,233904,
235228,239500,241902,242188,243832,243854,244858,245333). This is mostly
documentation fixes and updates to the default FTP list that got left
behind in -CURRENT.

MFC r244057, r244059:

r244057:
Get 'uname -r' earlier, so it can be used to determine what branch is
being run to set BSDINSTALL_DISTSITE accordingly. This change allows
non-RELEASE branches to use the FTP snapshots directory for bootonly.iso
installations.

r244059:
Add missed BETA* to list.

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

Approved by: re (implicit)

Add ftp4.se.freebsd.org to the IPv4 and IPv6 mirror lists.

PR: 157210, 157211
Submitted by: Niclas Zeising <zeising@lysator.liu.se>
Approved by: re (kib)

Swap FTP paths to be MACHINE/MACHINE_ARCH instead of MACHINE_ARCH/MACHINE.
This follows what the output of make targets looks like, and reduces the
number of directories needed on the FTP server, since we now have only one
architecture with multiple machine types (i386, which has i386 and pc98),
but 3 machines with 9 architectures between them (powerpc, mips, and arm).

Requested by: kensmith, bz
Approved by: re(kensmith)

Add back ftp4, a new machine has taken its place. ftp2 and ftp8 are both IPv6 capable
mirrors. cvsup4/ftp4 have already been added to the handbook.

Reviewed by: nathanw
Approved by: re (kib)

Add mirror selection for FTP installs. To support TBEMD installs
(e.g. powerpc64), this looks in a slightly different default path than now,
specifying both $MACHINE and $MACHINE_ARCH:
MIRROR/pub/FreeBSD/releases/`uname -p`/`uname -m`/`uname -r`

How to handle TBEMD properly probably merits some more discussion, but,
since no such 9.0-CURRENT distfiles exist at the moment, all existing
mirrors presently fail anyway.