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.

math: remove 'Created by' lines

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

  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Alessando Sagratini <ale_sagra@hotmail.com>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Amarendra Godbole <amarendra.godbole@gmail.com>
  *  Anders Nordby <anders@FreeBSD.org>
  *  Andreas Fehlner (fehlner@gmx.de)
  *  Andrew L. Neporada <andrew@chg.ru>
  *  Andrey <gugu@zoo.rambler.ru>
  *  Andrey Zakhvatov

Remove # $FreeBSD$ from Makefiles.

Update WWW

search.cpan.org is shutting down.
It will redirect to metacpan.org after June 25, 2018.

With hat:	perl

Cleanup no longer needed CHMOD usage after r424898.

PR:		213743
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

MASTER_SITES cleanup.

- 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

Change the way Perl modules are installed, update the default Perl to 5.18.

Before, we had:

  site_perl :           lib/perl5/site_perl/5.18
  site_perl/perl_arch : lib/perl5/site_perl/5.18/mach
  perl_man3 :           lib/perl5/5.18/man/man3

Now we have:

  site_perl : lib/perl5/site_perl
  site_arch : lib/perl5/site_perl/mach/5.18
  perl_man3 : lib/perl5/site_perl/man/man3

Modules without any .so will be installed at the same place regardless of the

Support STAGEDIR.

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

- Use single space after WWW:

- Convert to new perl framework
- Trim Makefile header
- Remove MAKE_JOBS_SAFE=yes, it's the default.

- Get Rid MD5 support

- only 13% of the p5- ports embed @comment $FreeBSD$:
  so standarize and remove it

With Hat:   perl@

- Include some ports in perl5 category.

PR:             ports/123530
Submitted by:   Philip M. Gollucci <pgollucci@p6m7g8.com>
Reworked by:    araujo (myself)
Approved by:    flz (portmgr)

- Update to 0.07
- Move to perl@FreeBSD.org

PR:             ports/106516
Submitted by:   Gea-Suan Lin <gslin_AT_gslin dot org>

Add p5-Statistics-LineFit 0.06, least squares line fit, weighted or
unweighted.

PR:             ports/104688
Submitted by:   Gea-Suan Lin <gslin at gslin.org>