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

Improve the German translation.
Some parts (ERANGE, ETXTBSY) triggered by Christoph Mallon.

Discussed with: brueffer, gabor (previous version)

- Add Brazilian Portuguese catalog [1]
- Fixes for German catalog [2]

PR: kern/132694 [1], conf/80504 [2]
Submitted by: Murilo Opsfelder <mopsfelder@gmail.com> [1],
brueffer [2]

- Reenable Native Language Support in libc. This feature was disabled due
to possible breakages in the catalog handling code. Since then, that
code has been replaced by the secure code from NetBSD but NLS in libc
remained turned off. Tests have shown that the feature is stable and
working so we can now turn it on again.

- Add several new catalog files:
- ca_ES.ISO8859-1
- de_DE.ISO8859-1
- el_GR.ISO8859-7 (by manolis@ and keramida@)
- es_ES.ISO8859-1 (kern/123179, by carvay@)
- fi_FI.ISO8859-1
- fr_FR.ISO8859-1 (kern/78756, by thierry@)
- hu_HU.ISO8859-2 (by gabor@)
- it_IT.ISO8859-15
- nl_NL.ISO8859-1 (corrections by rene@)
- no_NO.ISO8859-1
- mn_MN.UTF-8 (by ganbold@)
- sk_SK.ISO8859-2
- sv_SE.ISO8859-1
(The catalogs without explicit source has been obtained from NetBSD.)

Approved by: attilio