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>

*/*: rename CHEESESHOP to PYPI in MASTER_SITES

PR:			267994
Differential revision:	D37518
Approved by:		bapt

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.

net-mgmt: remove 'Created by' lines

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

  *  @BABOLO <.@babolo.ru>
  *  Alex Samorukov, samm@freebsd.org
  *  Alexander Kriventsov <avk@vl.ru>
  *  Alexander Sulfrian <alexander@sulfrian.net>
  *  Alexander Y. Grigoryev <alexander.4mail@gmail.com>
  *  Alexandre Biancalana <ale@biancalanas.net>
  *  Alexandre Snarskii <snar@paranoia.ru>
  *  Alexandre Snarskii <snar@snar.spb.ru>
  *  Alexey Bobkov <mr.deadlystorm@gmail.com>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alexey V. Degtyarev

net-mgmt/py-pysnmp: Update WWW

snmplabs.com domain name no longer under upstream control

Approved by:	portmgr (blanket: metadata fix)

Remove # $FreeBSD$ from Makefiles.

Drop python 2.7 support from a few ports

With hat:	portmgr

Update RUN_DEPENDS as per PR 235728 (thanks to kai for the heads up).

PR:		235728
Reported by:	kai
Approved by:	Martin Jackson (maintainer), ler (mentor, implicit)

Update to 4.4.9

PR:		236095
Approved by:	Martin Jackson (maintainer), ler (mentor, implicit)

net-mgmt/py-snmp4{-apps,-mibs}: Rename to match canonical upstream name

Rename the following ports:

* net-mgmt/py-snmp4 -> net-mgmt/py-pysnmp
* net-mgmt/py-snmp4-apps -> net-mgmt/py-pysnmp-apps
* net-mgmt/py-snmp4-mibs -> net-mgmt/py-pysnmp-mibs

Bump PORTREVISION for net/exaddos + net-mgmt/py-pysmi

PR:		235120
Submitted by:	John W. O'Brien <john@saltant.com>
Reviewed by:	koobs
Approved by:	miwi (mentor), maintainer
Differential Revision:	https://reviews.freebsd.org/D19134