Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Add clang-format under WITH_CLANG_EXTRAS.

Reviewed by: dim
Approved by: re (gjb)
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D6856

DIRDEPS_BUILD: Update clang dependencies after r296417.

Sponsored by: EMC / Isilon Storage Division

DIRDEPS_BUILD: Hookup CLANG_EXTRAS.

Sponsored by: EMC / Isilon Storage Division

META_MODE: Remove DEP_RELDIR from Makefile.depend files.

This has not been needed since r284171 in projects/bmake.

Sponsored by: EMC / Isilon Storage Division

Support WITH_LLDB

Remove entries from userland/gnu that conflict with toolchain

Add META_MODE support.

Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision: D2796
Reviewed by: brooks imp

Merge sync of head

Rename pkgs to more generic targets (that's what they are)

Reviewed by: marcel

Updated dependencies

Updated dependencies

Add pkgs/Makefile* and pkgs/pseudo/* so folk can test drive.