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.

This commit implements such a proposal and moves one of the WWW: entries
of each pkg-descr file into the respective port's Makefile. A heuristic
attempts to identify the most relevant URL in case there is more than
one WWW: entry in some pkg-descr file. URLs that are not moved into the
Makefile are prefixed with "See also:" instead of "WWW:" in the pkg-descr
files in order to preserve them.

There are 1256 ports that had no WWW: entries in pkg-descr files. These
ports will not be touched in this commit.

The portlint port has been adjusted to expect a WWW entry in each port
Makefile, and to flag any remaining "WWW:" lines in pkg-descr files as
deprecated.

Approved by:		portmgr (tcberner)

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

  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alejandro Pulver <alejandro@varnet.biz>
  *  Alexander Best <arundel@gmx.net>
  *  Alexander Nedotsukov <bland@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alexey V. Antipovsky <kemm@in-line.ru>
  *  Alonso Cardenas Marquez <acm@FreeBSD.org>
  *  Brian Gaeke <brg@dgate.org>
  *  Danilo Egea Gondolfo <danilo@FreeBSD.org>
  *  David Naylor <naylor.b.david@gmail.com>
  *  David O'Brien (obrien@cs.ucdavis.edu)
  *  Edward Tomasz Napierala <trasz@FreeBSD.org>
  *  Eric L. Hernes <erich@FreeBSD.org>
  *  Felix Palmen <felix@palmen-it.de>
  *  Ganael Laplanche <ganael.laplanche@martymac.org>
  *  Gerald Pfeifer <gerald@FreeBSD.org>
  *  Gunter Wambaugh <techgunter@yahoo.com>
  *  Jacques Vidrine <nectar@FreeBSD.org>
  *  Janni
  *  Jeffrey H. Johnson <CPE1704TKS@bellsouth.net>
  *  Jeremy Karlson
  *  Jeroen Ruigrok van der Werven <asmodai@FreeBSD.org>
  *  Joel Sutton <jsutton@webnet.com.au>
  *  Joerg Wunsch <joerg@FreeBSD.org>
  *  Jonathan M. Bresler (jmb)
  *  Jose Alonso Cardenas Marquez <acm@FreeBSD.org>
  *  Juergen Lock <nox@jelal.kn-bremen.de>
  *  Kaltashkin Eugene <zhecka@gmail.com>
  *  Kevin Bowling <kbowling@FreeBSD.org>
  *  Li-Lun Wang <llwang@infor.org>
  *  Mario S F Ferreira <lioux@linf.unb.br> et al.
  *  Martin Hinner
  *  Maxim Sobolev <sobomax@FreeBSD.org>
  *  Michael Neumann <mneumann@ntecs.de>
  *  Miguel Mendez <flynn@energyhq.homeip.net>
  *  Naram Qashat <cyberbotx@cyberbotx.com>
  *  Nicole Reid <root@cooltrainer.org>
  *  Nishika <nishika@cheerful.com>
  *  Pavel I Volkov <pavelivolkov@googlemail.com>
  *  Piotr Kubaj
  *  Ruan Wei (iamayan@gmail.com)
  *  Sebastian Schuetz <sschuetz@fhm.edu>
  *  Seiichirou Hiraoka
  *  Shaun Amott <shaun@FreeBSD.org>
  *  Sheldon Hearn <axl@iafrica.com>
  *  Simon Dick <simond@irrelevant.org>
  *  Steven Kreuzer <skreuzer@FreeBSD.org>
  *  Stijn Hoop <stijn@win.tue.nl>
  *  Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
  *  Thomas Bernard <nanard@free.fr>
  *  Timothy Beyer <beyert@cs.ucr.edu>
  *  Tobias Reifenberger <tr@freebsd.mayn.de>
  *  Tom Carrick <knyghtmare@knyghtmare.com>
  *  Travis Poppe <tlp@liquidx.org>
  *  Uffe Jakobsen <uffe@uffe.org>
  *  Vladimir Kondratiev <wulf@mail.mipt.ru>
  *  Yukihiro Nakai <Nakai@Mlab.t.u-tokyo.ac.jp>
  *  Yukihiro Nakai <nakai@FreeBSD.org>
  *  alepulver
  *  alex
  *  dchapes@ddm.on.ca
  *  dk
  *  elbarto
  *  janek@gaja.ipan.lublin.pl
  *  jhb
  *  jmz
  *  joerg
  *  jraynard
  *  krion
  *  kstailey
  *  mbr@FreeBSD.org
  *  okeeblow <root@cooltrainer.org>
  *  pixel
  *  pjm
  *  tenser@spitfire.ecsel.psu.edu
  *  trasz
  *  trasz <trasz@pin.if.uz.zgora.pl>
  * # Created by Timothy Beyer <beyert@cs.ucr.edu>

With hat:	portmgr

Needs C++11:
USE_CXXSTD=     c++11

Approved by:	mentors (implicit approval)

- Modernize port
- Pass maintainership to submitter

PR:		241135
Submitted by:	cross@gajendra.net

Mostly replace with ${}, but sometime, replace with $$() because it is
what was intended in the first place. (I think.)

Sponsored by:	Absolight

- Replace ${MASTER_SITE_FOO} with FOO.
- Merge MASTER_SITE_SUBDIR into MASTER_SITES when possible. (This means 99.9%
  of the time.)
- Remove occurrences of MASTER_SITE_LOCAL when no subdirectory was present and
  no hint of what it should be was present.
- Fix some logic.
- And generally, make things more simple and easy to understand.

While there, add magic values to the FESTIVAL, GENTOO, GIMP, GNUPG, QT and
SAMBA macros.

Also, replace some EXTRACT_SUFX occurences with USES=tar:*.

Checked by:	make fetch-urlall-list
With hat:	portmgr
Sponsored by:	Absolight

minor COMMENT typos and surrounding whitespace fixes. Categories D-F.

CR:		D196
Approved by:	portmgr (bapt)