all: remove explicit versions in USES=python for "3.x+"

The logic in USES=python will automatically convert this to 3.8+ by
itself.

Adjust two ports that only had Python 3.7 mentioned but build fine
on Python 3.8 too.

finance/quickfix: mark BROKEN with PYTHON

libtool: compile:  c++ -DHAVE_CONFIG_H -I. -I../.. -I -I. -I.. -I../.. -I../C++
-DLIBICONV_PLUG -DPYTHON_MAJOR_VERSION=3 -Wno-unused-variable
-Wno-maybe-uninitialized -O2 -pipe -DLIBICONV_PLUG -fstack-protector-strong
-fno-strict-aliasing -DLIBICONV_PLUG -Wall -ansi
-Wno-unused-command-line-argument -Wpointer-arith -Wwrite-strings
-Wno-overloaded-virtual -Wno-deprecated-declarations -Wno-deprecated -std=c++0x
-MT _quickfix_la-QuickfixPython.lo -MD -MP -MF
.deps/_quickfix_la-QuickfixPython.Tpo -c QuickfixPython.cpp  -fPIC -DPIC -o
.libs/_quickfix_la-QuickfixPython.o
warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean
'-Wno-uninitialized'? [-Wunknown-warning-option]
QuickfixPython.cpp:175:11: fatal error: 'Python.h' file not found
          ^~~~~~~~~~
1 warning and 1 error generated.

Reviewed by:	portmgr, vishwin, yuri
Differential Revision:	<https://reviews.freebsd.org/D40568>

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.

security: remove 'Created by' lines

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

  *  <ports@c0decafe.net>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alex Kapranoff <kappa@rambler-co.ru>
  *  Alex Samorukov <samm@freebsd.org>
  *  Alexander Botero-Lowry <alex@foxybanana.com>
  *  Alexander Kriventsov <avk@vl.ru>
  *  Alexander Leidinger <netchild@FreeBSD.org>

security/belier: Fix build with setuptools 58.0.0+

With hat:	python

Remove # $FreeBSD$ from Makefiles.

Drop python 2.7 support from a few ports

With hat:	portmgr

Sanitize COMMENT per Section 5.6 of the FreeBSD Porter's Handbook (part 6).

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

- Convert ports of science/ and security to new USES=python

Approved by:	portmgr (implicit)

- Convert to PYDISTUTILS_AUTOPLIST
- Stage support
- Bump PORTREV

Python cleanup:
- USE_PYTHON* = 2.X -> USE_PYTHON* = 2
- USE_PYTHON* = 2.X+ -> USE_PYTHON* = yes
Reviewed by:	python (mva, rm)
Approved by:	portmgr-lurkers (mat)

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

Belier allows opening a shell or executing a command on a remote computer
through a SSH connection. The main feature of Belier is its ability to cross
several intermediate computers before realizing the job.

WWW: http://www.ohmytux.com/belier/index.html

PR:             ports/156757
Submitted by:   rokaz