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

Obsolete mkulzma(8) and geom_uncompress(4), their functionality
is now provided by mkuzip(8) and geom_uzip(4) respectively.

MFC after: 1 month

Mark the mostly redundant kernels that just pull
in something from _BASE as NO_UNIVERSE

Differential Revision: https://reviews.freebsd.org/D4200

Add support for the TP-Link TL-WDR4300 and TL-WDR3600.

These are actually almost the same units; except one is 3x3 5GHz, and
one is 2x2 5GHz.

Tested:

* TP-Link TL-WDR3600

TODO:

* The ath0/ath1 MAC addresses are ye garbage (00:02:03:04:05:06); fixing
that will take a little more time. It works fine with the ath0/ath1
MAC addresses set manually.

* Go through and yank the AR9344 on-board switch config (arswitch1);
it's not required here for this AP.