Pull new version of libc++ into vendor branch.
Import new libc++.  This contains some fixes for code compiled in c++98 / c++03
mode.
Import new libc++ to vendor branch.
Vendor import of libc++ trunk r180598.
Pull new libc++ into vendor branch.
Vendor import of libc++ tags/RELEASE_34/final r197960:
https://llvm.org/svn/llvm-project/libcxx/tags/RELEASE_34/final@197960
Fix the name of the dts file for the HL201...
Import libc++ 3.4 release.  This contains a lot of bugfixes, and some
preliminary support for C++1y.

MFC after:	3 weeks
Bump copyright dates
The posix_madvise(3) and posix_fadvise(2) should return error on
failure, same as posix_fallocate(2).

Noted by:	Bob Bishop <rb@gid.co.uk>
Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
The timestamp bit is number 17, and not number 9, in the stat error
field of the receive descriptor.

MFC after:	1 week
Remove an unneeded space in the BERI merge.
Revert outdated info related to WITH_LIBCPLUSPLUS that was included in
r261072.  src.conf.5 now matches makeman's output.
Merge from CheriBSD:
commit c1acf022c533c5ae27e0cd556977eafe3f5959eb
Author: Brooks Davis <brooks@one-eyed-alien.net>
Date:   Fri Jan 17 21:46:44 2014 +0000

    Add an option WITHOUT_NCURSESW to suppress building and linking to
    libncursesw.  While wide character support it useful we'd like to
    only need one ncurses library on embedded systems.

MFC after:	4 weeks
Sponsored by:	DARPA, AFRL
Merge from CheriBSD:
commit 6b569451b92c48ccf1768da32e7e89189e1aa253
Author: Brooks Davis <brooks@one-eyed-alien.net>
Date:   Mon Jan 27 22:50:46 2014 +0000

    Always install nmtree as mtree.
    For compability, link mtree to nmtree.

X-MFC after:	never
Sponsored by:	DARPA, AFRL
Merge from CheriBSD:
commit 70b8f0c127db6b80411789d237b403cc64a93573
Author: Brooks Davis <brooks@one-eyed-alien.net>
Date:   Mon Jan 27 22:53:57 2014 +0000

    Move mtree.5 to usr.sbin/nmtree.
    Remove note that mtree 2.0 format files aren't supported.

MFC after:	4 weeks
Sponsored by:	DARPA, AFRL
Merge from CheriBSD:
commit 2d581e8caf79d7a0f5a24590eccd06da90cccb74
Author: Brooks Davis <brooks@one-eyed-alien.net>
Date:   Mon Jan 27 22:57:51 2014 +0000

    Add WITHOUT_FMTREE to disable building fmtree.

MFC after:	4 weeks
Sponsored by:	DARPA, AFRL
Add file missed in r261296.

MFC after:	4 weeks
Sponsored by:	DARPA, AFRL
Regenerate for WITHOUT_FMTREE and WITHOUT_NCURSESW.

MFC after:	4 weeks
Sponsored by:	DARPA, AFRL
The -B flag is intended to take an argument.

Fix a couple typos in comments.

MFC after:	4 weeks
Sponsored by:	DARPA, ARFL