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

graphics/rubygem-exifr: Update to 1.3.10

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

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.

graphics: remove 'Created by' lines

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

  *  "Waitman Gobble" <uzimac@da3m0n8t3r.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Abel Chow <ozsanh45vds001@sneakemail.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Ade Lovett <ade@lovett.com>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Hayward <xelah@xelah.com>
  *  Alex Ivasyuv <siegerstein@pochta.ru>
  *  Alex Samorukov <samm@os2.kiev.ua>

graphics/rubygem-exifr: Update to 1.3.9

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Remove # $FreeBSD$ from Makefiles.

Update to 1.3.5

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.3.4

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.3.3

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.3.2

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.3.1

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.3.0

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

Update to 1.2.6

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

graphics/rubygem-exifr: update to 1.2.5

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

- Update to 1.2.4

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG
Sponsored by:	PortsCamp Taiwan

- Update to 1.2.3
- Add NO_ARCH

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

- Update to 1.2.2

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

- Update to 1.2.1
- Add LICENSE
- Remove leading spaces in pkg-descr

Changes:	https://github.com/remvee/exifr/blob/master/CHANGELOG

graphics/rubygme-exifr: update to 1.2.0

Remove indefinite articles and trailing periods from COMMENT, plus
minor COMMENT typos and surrounding whitespace fixes. Categories G-I.

CR:		D201
Approved by:	portmgr (bapt)

- Add stage support

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

- Update to 1.1.3

- Update to 1.1.2

PR:             ports/167572
Submitted by:   Makoto Kishimoto <ksmakoto@dd.iij4u.or.jp>

- Switch maintainer to ruby@ so it's easier for ruby folks to see PRs
  and portscout updates

- Return my ports back to the pool.  I was unable to make any fixes to
  my ports in the past 3 weeks while ports were broken on any 10.x
  machines, which means I'm unable to maintain them.  So let people know
  that there's no available support for them until things are back to
  normal (which also means that anyone with spare time will be able
  to fix them without getting approval).

- Removing remaining MD5 from rubygem- ports

- github is redirecting all these to https now

- 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

- 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 0.10.9.

- 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

- Update to 0.10.8.

- Update to 0.10.7.

- Fix plist [1].
- Patching exifr isn't really needed, since gem provides a wrapper in
  ${PREFIX}/bin for convenience.

Reported by:    erwin [1]

- Add graphics/rubygem-exifr, a pure-ruby EXIF reader.