www/h2o-devel: update to 20210611 snapshot

Sponsored by:	SkunkWerks, GmbH
Tested by:	Uwe Trenkner <uwe@trenknerconsulting.com>

all: Remove all other $FreeBSD keywords.

Remove # $FreeBSD$ from Makefiles.

www/h2o*: revert r566455 - broken with current libressl

Sponsored by:	SkunkWerks, GmbH

www/h2o*: support libressl, drop surplus replaces

Submitted by:   Uwe Trenkner <uwe@trenknerconsulting.com>
Sponsored by:	SkunkWerks, GmbH

www/h2o*: set default http headers in samples, not add

This improves the default security posture of both h2o-flavoured ports.

Submitted by:	Uwe Trenkner <uwe@trenknerconsulting.com>
Sponsored by:	SkunkWerks, GmbH

Limit BROKEN on powerpc64 to elfv1 (e.g. GCC) only.

www/h2o-devel: update to 2.3.0-beta2

resolves:

- CVE-2019-9512 (Ping Flood)
- CVE-2019-9514 (Reset Flood)
- CVE-2019-9515 (Settings Flood)

PR:		239843
Submitted by:	Max Kostikov <max@kostikov.co>
Reported by:	Max Kostikov <max@kostikov.co>
Reviewed by:	adamw
Approved by:	jrm (mentor, implicit)
MFH:		2019Q3
Security:	CVE-2019-9512
Security:	CVE-2019-9514
Security:	CVE-2019-9515
Sponsored by:	SkunkWerks, GmbH

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

h2o{,-devel}: Improve rc.d/h2o, freshen h2o.conf

rc.d/h2o:
 - Add a configtest target
 - Fix a bug that could prevent the script from locating the PIDfile path

h2o.conf:
 - Remove entries that are defaults

PR:		238888
Approved by:	maintainer (dch)
MFH:		2019Q2

www/h2o*: Remove nop CMAKE_VERBOSE

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

Bump PORTREVISION for ports depending on the canonical version of GCC
in the ports tree (via Mk/bsd.default-versions.mk and lang/gcc) which
has now moved from GCC 6 to GCC 7 by default.

This includes ports
 - featuring USE_GCC=yes or USE_GCC=any,
 - featuring USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and those
 - with USES=compiler specifying one of openmp, nestedfct, c11, c++0x,
   c++11-lib, c++11-lang, c++14-lang, c++17-lang, or gcc-c++11-lib.

PR:		222542

www/h2o-devel: copy of port www/h2o following upstream betas

Approved by:	jrm
Differential Revision:	https://reviews.freebsd.org/D16310