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/rubygem-rubytree: Update to 2.0.0

Changes:	https://github.com/evolve75/RubyTree/releases

devel/rubygem-rubytree: Add PORTSCOUT

1.0.1 has been yanked.

Remove # $FreeBSD$ from Makefiles.

Update version requirement of RUN_DEPENDS

Update to 1.0.0

Changes:	https://github.com/evolve75/RubyTree/releases

devel/rubygem-rubytree: switch to json 1.x dep

devel/rubygem-rubytree: remove unneeded USE_RUBY_RDOC

- Fix trailing whitespace in pkg-descrs, categories [a-f]*

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

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

With hat:	portmgr
Sponsored by:	Absolight

- Update to 0.9.7
- Add LICENSE_FILE

Changes:	https://github.com/evolve75/RubyTree/blob/master/History.rdoc
Sponsored by:	PortsCamp Taiwan

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

Obtained from:  DEVELOPER_MODE
With Hat:       ruby@

Sponsored by:   RideCharge Inc / Curb

- Update to 0.9.6

Changes:	https://github.com/evolve75/RubyTree/blob/master/History.rdoc

- Update to 0.9.5
- Update WWW

Changes:	https://github.com/evolve75/RubyTree/blob/master/History.rdoc

devel/rubygem-rubytree: update to 0.9.4

many ruby/rubygem ports: death of rubyforge.org

rubyforge.org shutdown on May 15, 2014. This commit accounts for that by doing
several things:

- Deprecate ruby that had only rubyforge.org as MASTER_SITES (and so are now
  only fetchable via our cache)
- Deprecate ports that depend on those
- Update the WWW pkg-descr line that points to rubyforge.org for rubygem ports
  (which are still fetchable from rubygems.org)

The next step will be to remove rubyforge.org from bsd.sites.mk, after these
deprecated ports are deleted.

Phabric:	D591
With hat:	ruby
Approved by:	portmgr (because of committing to unstaged graphics/mingplot port)

- Add LICENSE
- Sort RUN_DEPENDS

- Add stage support

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

- Update to 0.8.3
- Trim Makefile header
- Pass maintainership to ruby@

PR:		ports/179084
Submitted by:	Mikhail Tsatsenko <m.tsatsenko@gmail.com>

RubyTree is a simple and general purpose implementation
of the Tree data structure for the Ruby language.

WWW: http://rubytree.rubyforge.org/

PR:             ports/164080
Submitted by:   Mikhail T. <m.tsatsenko@gmail.com>