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

Bring back a couple of ISO8859-15 locales:
- af_ZA.ISO8859-15
- en_AU.ISO8859-15
- en_CA.ISO8859-15
- en_NZ.ISO8859-15
- en_US.ISO8859-15
- fr_CA.ISO8859-15

Improve collation string and locales support

Merge collation support from Illumos and DragonflyBSD.

Locales are now generated with the new localedef(1) tool from CLDR POSIX files.
The generated files are now identified as "BSD 1.0" format.

The libc now only read "BSD 1.0" locales definitions, all other version will be
set to "C"
The localedef(1) tool has been imported from Illumos and modified to use tree(3)
instead of the CDDL avl(3)
A set of tool created by edwin@ and extended by marino@ for dragonfly has been
added to be able to generate locales and the Makefiles from the vanilla CLDR
unicode databases + a universal UTF-8 charmap (by marino@)
Update the locales to unicode v27
Given our regex(3) does not support multibyte (yet) it has been forced to always
use locale C
Remove now unused colldef(1) and mklocale(1)
Finish implementing the numeric BSD extension for ctypes
The number of supported locales has grown from 175 to 250 locales. Among the new
locales: 6 Arabic locales (AE EG JO MA QA SA), Different variations of spanish
locales.
Added new 3 components locales for mn_Cyrl_MN, sr_Cyrl_RS sr_Latn_RS,
zh_Hans_CN, zh_Hant_HK and zh_Hant_TW. Some aliases has been for 2 components
version when possible.

Thanks: Garrett D'Amore (Illumos) who made sure all his work was done under
BSD license!, Edwin Groothuis (edwin@) for the work he made on tools to be able
to generate locales definition usable in freebsd sources out of vanilla CLDR
definitions, John Marino (DragonflyBSD) who first merge the Illumos work into
Dragonfly and spent hours tracking down bugs.

. add comment that 4 character of int_curr_symbol should be SPACE
. fix chinese locales to meet this requirement

Back out my "3;3" -> something changes. While technikally the same, it only
leads to confusion.

I change my mind a bit: assuming last \0 is contrproductive since will cause
user confusion, so specify it directly, i.e. change "3" to "3;0".

In this style "3;" or "3" must not cause repeating
(converted to \3, CHAR_MAX, \0)
Still not implemented and broken in localeconv()

Change "3;3" in mon_grouping to "3". This is cosmetique, last \0 will cause
previous \3 repeat forever, according to SUSv2
Add comment about mon_grouping separator
NOTE: mon_grouping localeconv() parsing still broken.

Back out removing trailing space from int_curr_symbol, this is SUSV2
requirement

Add additional English- and French-speaking countries with the appropriate
currency symbols. Use make(1) loops, not sh(1) loops.