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

Remove most of the ATF tools and the _atf user.

This is necessary because ATF is deprecated and it will be replaced by Kyua.

Submitted by: jmmv@netbsd.org
Reviewed by: Garrett Cooper
Approved by: re

Simple unit-tests for libcrypt, to show how easy it is.

Approved by: marcel (mentor)