Mk/**ruby.mk: Switch from USE_RUBY=yes to USES=ruby

Switch from Mk/bsd.ruby.mk to Mk/Uses/ruby.mk

Notable changes are.

- Mk/bsd.ruby.mk is moved to Mk/Uses/ruby.mk.
- USE_RUBY=yes is replaced with USES=ruby.
- USE_RUBY_EXTCONF is replaced with USES=ruby:extconf.
- USE_RUBY_RDOC is replaced with USES=ruby:rdoc.
- USE_RUBY_SETUP is replaces with USES=ruby:setup.
- RUBY_NO_BUILD_DEPENDS and RUBY_NO_RUN_DEPENDS are replaced with
  USES=ruby:{build,none,run}.
- RUBY_REQUIRE isn't used anywhere, so removed.
- USES=gem now implies USES=ruby.

This is mainly the work of yasu@ at https://reviews.freebsd.org/D27863

I have just made some cosmetic changes and ran exp-run to test that the
tree is not in a BROKEN state.

Approved by:	portmgr
Differential Revision:	https://reviews.freebsd.org/D37925

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

devel: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  "Waitman Gobble" <uzimac@da3m0n8t3r.com>
  *  <jkoshy@FreeBSD.org>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Aaron H. K. Diep <ahkdiep@gmail.com>
  *  Aaron Hurt <ahurt@anbcs.com>
  *  Abel Chow <abel_chow@yahoo.com>
  *  Adam McLaurin
  *  Adam Saponara <as@php.net>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>

devel/libffi: Bump deps PORTREVISION for shlib change

PR:		263764
Reported by:	VVD <vvd@unislabs.com>

devel/rubygem-ffi: Update to 1.15.5

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

devel/rubygem-ffi: Update to 1.15.4

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

devel/rubygem-ffi: Update to 1.15.3

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

devel/rubygem-ffi: Update to 1.15.1

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

devel/rubygem-ffi: Update to 1.15.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Remove # $FreeBSD$ from Makefiles.

Fix spelling mistakes, typos, poor wording, hyphenation, jargonisms,
contractions, "<portname> is ..." cases, missing Oxford commas, and
other miscellaneous style bugs in the COMMENT line.

Update to 1.14.2

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.14.1

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.14.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Chanse update of devel/libffi

Chase the devel/libffi update
Bump portrevision of all dependent ports to chace shard library version bump
in libffi.
Update LIB_DEPENDS lines where needed to not require a specific version of
libffi.so.

PR:		247028 (for tracking)

Update to 1.13.1

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.13.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.12.2

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.12.1

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.12.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.11.3

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.11.2

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.11.1

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.11.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.10.0

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md
PR:		234875
Submitted by:	Jose Luis Duran <jlduran@gmail.com>

Add arm/aarch64 support

PR:		230147
Submitted by:	Greg V <greg@unrelenting.technology>

Update to 1.9.25

Changes:	https://github.com/ffi/ffi/blob/master/CHANGELOG.md

Update to 1.9.24

Changes:	https://github.com/ffi/ffi/commits/master

Update to 1.9.23

- Take maintainership

Changes:	https://github.com/ffi/ffi/commits/master

Update to 1.9.18

Changes:	https://github.com/ffi/ffi/commits/master

devel/rubygem-ffi: Switch time_t and suseconds_t types to long

When using rubygem-ethon there is sometimes the following error:
Ethon::Errors::Select (An error occured on select: 22)
This is caused by a wrong type definition in rubygem-ffi, which
the patch corrects.

Issue: https://github.com/typhoeus/ethon/issues/98

Update to 1.9.17

Changes:	https://github.com/ffi/ffi/commits/master

- Update to 1.9.14
- Add LICENSE_FILE

Changes:	https://github.com/ffi/ffi/commits/master

Convert USES=gem:autoplist to USES=gem since autoplist is default

create USES=gem and update rubygem- ports to use it

Note that for now ports still have to have USE_RUBY=yes to use USES=gem

PR:		209041
Differential Revision:	https://reviews.freebsd.org/D6070

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

- Update to 1.9.10

Changes:	https://github.com/ffi/ffi/commits/master

- Update to 1.9.9
- Remove USE_RAKE
- Update WWW

Changes:	https://github.com/ffi/ffi/commits/master

devel/rubygem-ffi: update to 1.9.8

PR:		199007
Submitted by:	Michael Moll <kvedulv@kvedulv.de>
Approved by:	mentors (implicit)

devel/rubygem-ffi: Fix loading libc on 10.x and newer

PR:		188741
Submitted by:	asomers
Obtained
from:	https://github.com/Carpetsmoker/ffi/commit/ac63e07f76ed65e4ad8865ef1804ce6e7a333d19

Modernize LIB_DEPENDS

With hat:	portmgr

Use a valid LICENSE name

- Update to Version 1.9.3
- Change License to BSD
- Add USE_RAKE

PR:		ports/185030
Submitted by:	Horia Racoviceanu <horia@racoviceanu.com>

- Add stage support

Add NO_STAGE all over the place in preparation for the staging support (cat:
devel part 4)

- Update to 1.9.0
- Add LICENSE
- Cleanup Makefile header
- Remove trailing space in pkg-descr

Changes:	https://github.com/ffi/ffi/commits/master

- Update devel/libffi to 3.0.11.
- Reset maintainership for libffi.  See ports/164941.

PR:		ports/171768
Submitted by:	Takefu <takefu@airport.fm>

- Update to 1.0.11

Feature safe:   yes

- Update to 1.0.10

- Update to 1.0.9
- Add dependency on libffi
- Works OK with 1.8 now

- Update to 1.0.3

- Unbreak

- Update to 1.0.2

With Hat:       ruby@
Sponsored by:   RideCharge Inc. / TaxiMagic

- Update to 1.0.1
  New version only works with 1.9.2
  It also doesn't work with our rake setup

With Hat:       ruby@
Sponsored by:   RideCharge Inc. / TaxiMagic

Reassign to pool.

Submitted by:   maintainer (private email)

- Fix PLIST with Ruby 1.9

PR:             ports/156158
Approved by:    Christoph Kick <kick.christoph at googlemail.com> (maintainer)

- Update to 1.0.0

PR:             ports/152949
Submitted by:   myself (pgollucci)
Approved by:    kick.christoph@googlemail.com (maintainer)
Sponsored by:   RideCharge Inc. / TaxiMagic

- Mass fixup of WWW: lines pkg-descr based on rubygems.org Homepage meta info

Prompted by:    distilator
With Hat:       ruby@
Sponsored by:   RideCharge Inc. / TaxiMagic

- Update to 0.6.3

PR:             ports/147132
Submitted by:   Christoph Kick <kick.christoph@googlemail.com> (maintainer)

- Mass conversion of RF -> RG for MASTER_SITE for rubygem- ports
  [RG aka rubygems.org]

PR:             ports/147005
Submitted by:   pgollucci (myself)
Approved by:    portmgr (pav)
With Hat:       ruby@

Ruby-FFI is a ruby extension for programmatically loading dynamic libraries,
binding functions within them, and calling those functions from Ruby code.

WWW: http://wiki.github.com/ffi/ffi/

PR:             ports/146728
Submitted by:   Christoph Kick