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

Introduce a new proc service routine ps_linfo() to get LWP info.

Add support for XMM registers in GDB for x86 processors that support
SSE (or its successors).

Reviewed by: marcel, davidxu
MFC After: 2 weeks

Re-implement this file, including copyright notice. Keep David Xu as
copyright owner. Typical bugs fixed by this are:
o various style(9) bugs,
o #ifdef'd out code,
o lack of comments,
o missing const,
o introduction of obsolete functions,
o missing __BEGIN_DECLS & __END_DECLS,

The major flaw in this version, that was also present in the previous
version is the lack of man page. Minor flaws undoubtedly still exist.

Add proc_service.h, the common file both debugger and libthread_db will
use, program wants to load libthread_db.so should provid proc service
interface.