Vendor import of tzdata2013h.

- Libya didn't go back to DST.
- Fix Morocco 2038 issue.
- Brazil/Acre and ?Western Amazonas are chaning timezones.

Obtained from:	ftp://ftp.iana.org/tz/releases/
Vendor import of tzdata2013i:

Removed support for solar-time-based time zones
Jordan stays at summer time this year.
Fix historical data for Cuba

Obtained from:	ftp://ftp.iana.org/tz/releases/
Vendor import of tzdata2014a

- Fix historical info about asia/Zion, Ukraine
- Fiji starts DST at 02:00 instead of 03:00
- Turkey will move to DST at 31 March this year.

Obtained from:	ftp://ftp.iana.org/tz/releases/
Vendor import of tzdata 2014b

- Update antartica.
- Comments about historical data for Hawaii.
- Update details for Crimea on 30 March
- Move location data Simferopol.

Obtained from:	ftp://ftp.iana.org/tz/releases/
Vendor import of tzdata2014c

- Egypt goes to DST on 15 May 2014.

Obtained from:	ftp://ftp.iana.org/tz/releases/
Update to tzdata2014e:

Fix historical data for Egypt.
Better prediction for future Egypt / Morocco changes.
Update to Cocos / Cook islands.
Fix historical data for Russia.

Obtained from:	ftp://ftp.iana.org/tz/releases/
Fix typo: s/mac_rev/mac_ver/

Submitted by:	Stefan Sperling <stsp at openbsd dot org>
Add references to vt(4) and the configuration files in /usr7share/vt where
appropriate (i.e. where syscons was already mentioned and vt supports the
feature). Comments in defaults/rc.conf are updated to match the contents
of the modified man-page rc.conf(5).

Reviewed by:	pluknet, emaste
MFC after:	3 days
Fix up races with f_seqcount handling.

It was possible that the kernel would overwrite user-supplied hint.

Abuse vnode lock for this purpose.

In collaboration with: kib
MFC after:	1 week
Fix "make checkdpadd" by "spoofing" DPADD

Approved by: jmmv (mentor)
Phabric: D631
PR: 192769
Convert LIBCURSES to LIBNCURSES to fix "make checkdpadd"

Also, add a missing LIBPANEL dependency for lldb

Approved by: rpaulo (mentor)
Suggested by: brooks
MFC after: 5 days
Phabric: D675 (as part of a larger diff)
PR: 192762
Introduce missing definition for LIBTERMCAPW

Some Makefiles expect this value to exist

Approved by: rpaulo (mentor)
MFC after: 5 days
Phabric: D675 (as part of a larger diff)
PR: 192762
Remove band.aid that made kbdcontrol lookup keymap files in the syscons
path even under vt, which is no longer useful, since the syscons keymap
files have been converted and committed for use by vt.
Update man-pages to correctly refer to changed pathes and naming conventions
for systems with vt(4) consoles.

MFC after:	3 days
More man pages that need to know about vt in addition to syscons.

MFC after:	3 dayS
Missed comma.
Back-out the references to vt(4) from this man-page. It appears that the
splash support in vt is implemented within the vt driver and does not
depend on splash(4).

Submitted by:	marius@alchemy.franken.de
Remove leading '/' from hardlink name when removing them from the
regular file name. This fixes the problem, when bsdtar can not create
hardlinks to extracted files.

Silence from:	kientzle@
MFC after:	1 week
Sponsored by:	Yandex LLC
- Remove socket file operations declaration from sys/file.h.
- Make them static in sys_socket.c.
- Provide generic invfo_truncate() instead of soo_truncate().

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
Back in the days when the kernel was single threaded, testing
"vm_paging_target() > 0" was a reasonable way of determining if the
inactive queue scan met its target.  However, now that other threads
can be allocating pages while the inactive queue scan is running, it's
an unreliable method.  The effect of it being unreliable is that we
can start swapping out processes when we didn't intend to.

This issue has existed since the kernel was multithreaded, but the
changes to the inactive queue target in 10.0-RELEASE have made its
effects visible.

This change introduces a more direct method for determining if the
inactive queue scan met its target that is not affected by the actions
of other threads.

Reported by:	Steve Polyack
Tested by:	pho, Steve Polyack (an earlier version)
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division