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.

www: remove 'Created by' lines

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

  *
  *  <hvo.pm@xs4all.nl>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Aaron LI <aly@aaronly.me>
  *  Aaron Zauner <az_mail@gmx.at>
  *  Abel Chow <achow@transoft.net>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Adrian Steinmann <ast@marabu.ch>
  *  Akinori MUSHA aka knu <knu@idaemons.org>

Remove # $FreeBSD$ from Makefiles.

- Fix trailing whitespace in pkg-descrs, categories [p-x]*

Approved by:	portmgr blanket

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

Set NO_ARCH for remaining rubygem-* ports with no arch dependent files

Obtained from:  DEVELOPER_MODE
With Hat:       ruby@

Sponsored by:   RideCharge Inc / Curb

- Add LICENSE
- Fix RUN_DEPENDS
- Bump PORTREVISION for dependency change

The word 'very' has no place in COMMENT
COMMENT should not begin with 'A' or 'An'

Maintainers were notified and given time to object.

- Add stage support

Add NO_STAGE all over the place in preparation for the staging support (cat:
www)

- Update Rails to 3.1.1 and associated changes

With hat:       ruby@

- Use canonical format for FreeBSD.org MAINTAINER addresses
- Remove obsolete MD5 checksum while I'm here

PR:             ports/152844
Submitted by:   sunpoet (myself)
Approved by:    miwi (with portmgr hat)

With portmgr hat, reassign these from clsung (who is apparently having
email troubles) to ruby@.

- 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 2.6.6

- GEMS are always RUN_DEPENDS of other GEMS
- Bump PORTREVISION when something other then BUILD_DEPENDS changes
- Some minor verticle whitespace in some ports for consistency with the rest

PR:             ports/147551
Submitted by:   pgollucci@ (myself)
Reviewed by:    portmgr (pav)
With Hat:       ruby

- 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@

- Update to 2.6.5

- Update to 2.6.4

PR:             ports/133526
Submitted by:   pgollucci

- convert to RUBYGEM_AUTOPLIST
  remove x-generate-plist and friends
- use RF macro and remove SUBDIR where possible
- remove some uneeded GEM_NAME=${DISTNAME}
  (this c/should be handled better in bsd.*.mk)

other deltas specific to individual ports:
  audio/rubygem-mp3info     - unbreak, fix packaging, bump PORTREVISION
  devel/rubygem-rapt        - adopt
  devel/rubygem-rspec       - remove BUILD_DEPENDS=RUN_DEPENDS -- neither set
  devel/rubygem-ruby2ruby   - add #' for vim highlight
  graphics/rubygem-extifr   - drop PORTREVISION=0
  graphics/rubygem-gd2      - add #' for vim highlight
  www/rubygem-rubyfulsoup   - swap GEM_NAME / DISTNAME for constistency

Sponsored by:   RideCharge Inc.
Tested on:      RideCharge's Tinderbox
Reviewed by:    stas

- A fast, secure, and very extensible implementation of eRuby (embedded Ruby)