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/nmsg: upgrade to version 1.0.0

  The network encapsulation library, nmsg, version 1.0.0 is released.
  This release deprecates Crossroads I/O (libxs) support in favor of
  ZeroMQ (libzmq). Note command-line updates enabling ZeroMQ socket
  connections for nmsgtool, as described in its man page. In addition
  the treatment of unknown rrtypes was amended for nmsgtool JSON
  output. In detail:

    Replace libXS with ZeroMQ and associated calls.

    Developer API functions nmsg_input_open_xs(),
    nmsg_input_open_xs_endpoint(), nmsg_io_add_input_xs_channel(),
    nmsg_output_open_xs(), and nmsg_output_open_xs_endpoint() are
    deprecated and replaced with respectively: nmsg_input_open_zmq(),

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

net/py-pynmsg: Fix packaging with Python 3.8

* Apply the same fix as in r559094 by stripping libraries by wildcard paths.

* Also use PYTHONPREFIX_SITELIBDIR instead PYTHON_SITELIBDIR to make the
  port PREFIX safe while I'm here.

PR:		253815
Approved by:	python (with hat)

Remove python 2.7 support

Resurrect net/py-pynmsg and upgrade to version 0.5.0, which is compatible
with python 3.

Pet portlint.

MFH:		2021Q1
Sponsored by:	Farsight Security, Inc.

Remove deprecated ports:

2020-08-15 archivers/py-backports.lzma: Uses deprecated version of python
2020-08-15 archivers/py-bup: Uses deprecated version of python
2020-08-15 archivers/py-librtfcomp: Uses deprecated version of python
2020-08-15 audio/blop-lv2: Uses deprecated version of python
2020-08-15 audio/bs2b-lv2: Uses deprecated version of python
2020-08-15 audio/py-gmusicproxy: Uses deprecated version of python
2020-08-15 audio/py-karaoke: Uses deprecated version of python
2020-08-15 audio/py-openal: Uses deprecated version of python
2020-08-15 audio/py-py-jack: Uses deprecated version of python
2020-08-15 audio/py-xmms2: Uses deprecated version of python
2020-08-15 audio/triceratops-lv2: Uses deprecated version of python
2020-08-15 biology/py-biom-format: Uses deprecated version of python
2020-08-15 comms/py-bulksms: Uses deprecated version of python

Deprecate a few ports

With hat:	portmgr

- Document incompatibility with python 3.7+

Approved by:	portmgr blanket

Add EXAMPLES options to ports that should have one.

Also various fixes related to said option.

PR:		230864
Submitted by:	mat
exp-runs by:	antoine

Remove ${PORTSDIR}/ from dependencies, categories m, n, o, and p.

With hat:	portmgr
Sponsored by:	Absolight

Sort USE_PYTHON

Sponsored by:	Farsight Security, Inc.

Upgrade to pynmsg revision 0.4.0.

pynmsg (0.4.0)

  * Add missing 'nogil' annotations to nmsg_input_open_json(),
    nmsg_message_from_json()

  * setup.py: Require libnmsg >= 0.10.0 due to JSON I/O

  * Add JSON IO support

  * setup.py: Use pkg-config to retrieve -I, -L, -l flags for libnmsg

  * Add embedsignature preprocessor directive to all pyx files

Sponsored by:	Farsight Security, Inc.

Improve shebangfix framework

- Support multiple values in *_OLD_CMD, i.e. we can now fix both
"/usr/bin/python" and "/usr/bin/env python" at the same time
- Default *_OLD_CMD values are now always appended, so you don't need to specify
them in individual ports
- Add lua support (depends on USES=lua)
- Add more default values, such as "/usr/bin/env foo" for python, perl, bash,
ruby and lua
- Shebangfix now matches whole words, e.g. we will no longer (erroneously)
replace "/usr/bin/perl5.005" with "${perl_CMD}5.005" (but "/usr/bin/perl -tt" is
still (correctly) replaced with "${perl_CMD} -tt")

Note that *_OLD_CMD items containing spaces must now be quoted (e.g.
perl_OLD_CMD=/bin/perl /usr/bin/perl "/usr/bin/env perl")

Update shebangfix usage according to new rules in many ports:

- Remove *_OLD_CMD for patterns now replaced by default
- Quote custom *_OLD_CMD which contain spaces

Fix shebangfix usage in many ports (irrelevant to infrastructure change):

- Remove redundant SHEBANG_LANG (no need to duplicate default langs)
- Remove redundant *_CMD (such as
python_CMD=${LOCALBASE}/bin/python${PYTHON_VER} when USES=python is present)
- Never use *_OLD_CMD in REINPLACE_CMD matchers, these should always look for
exact string

Approved by:	portmgr (bapt)
Differential Revision:	D3756

Switch default python_CMD used by shebangfix to ${PYTHON_CMD} for ports
using python

PR:		201077
Reviewed by:	mat
With hat:	portmgr
Differential Revision:	https://reviews.freebsd.org/D2955

Add missing PKGNAMEPREFIX.

Install examples.

Use ${PYTHON_SITELIBDIR} instead of hardwiring a specific python version.

Differential Revision:	https://reviews.freebsd.org/D2227
Approved by:	mat (mentor)
Sponsored by:	Farsight Security, Inc.

Add new port net/py-pynmsg.

This is pynmsg, a Python extension module implemented in Cython for
the nmsg C library.

Differential Revision:	https://reviews.freebsd.org/D2201
Approved by:	mat (mentor)
Sponsored by:	Farsight Security, Inc.