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.

mail: remove 'Created by' lines

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

  *  <ashish@FreeBSD.org>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Adam David <adam@FreeBSD.org>
  *  Adam McDougall <mcdouga9@egr.msu.edu>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alex Deiter <tiamat@komi.mts.ru>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alex Dupre <sysadmin@alexdupre.com>
  *  Alex Perel <veers@disturbed.net>

all: Remove all other $FreeBSD keywords.

Remove # $FreeBSD$ from Makefiles.

onvert to UCL & cleanup pkg-message (categories l-m)

- bump MILTER_SOVER to fix linking on FREEBSD-12
- bump PORTREVISION on ports using libmilter
- rename WITH_SENDMAIL_PORT to WITH_MILTER_PORT
- rename WITH_SENDMAIL_BASE to WITH_MILTER_BASE
- rename WITH_SENDMAIL_STATIC_MILTER to WITH_MILTER_STATIC
- cleanup ifdefs
- fix build on batv-filter with libmilter from ports

Convert tab after WWW: in pkg-descrs to single space as per PHB

Approved by:	portmgr blanket

- split libmilter from sendmail into a seperate port
- bump PORTREVISION
Submitted by:	matthew (Matthew Seaman)

- Add LICENSE
- Switch to USES=tar
- Cosmetic fixes
- Drop @dirrm* from plist
- Switch to options helpers

Approved by:	portmgr blanket

mail category: Remove $PTHREAD_LIBS

Note: The following ports did not pass check-plist (CP) or stage-qa (QA)
tests.   The sendmail port has many problems, but this was already known
by myself as I fixed it properly on DPorts last week.  It's a forward
action to submit a PR against mail/sendmail.

  * antivirus-milter (CP)
  * dk-milter        (CP)
  * milter-regex     (CP)
  * sendmail         (CP, QA)

approved by:	PTHREAD blanket

Replace all @unexec /bin/rmdir with @unexec rmdir

With hat:	portmgr
Sponsored by:	Absolight

Support staging

Fix properties on pkg-plist

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

Convert to new options framework

In the rc.d scripts, change assignments to rcvar to use the
literal name_enable wherever possible, and ${name}_enable
when it's not, to prepare for the demise of set_rcvar().

In cases where I had to hand-edit unusual instances also
modify formatting slightly to be more uniform (and in
some cases, correct). This includes adding some $FreeBSD$
tags, and most importantly moving rcvar= to right after
name= so it's clear that one is derived from the other.

- remove MD5

scam-backscatter milter

Scam-backscatter prevents spam backscatter (accept and bounce) on
mail servers which don't host mailboxes locally. It validates
mailboxes by verifying the recipient addresses hosted on a different
mail server.

WWW:    http://www.elandsys.com/scam/scam-backscatter/

PR:             ports/147115
Submitted by:   Janne Snabb <snabb@epipe.com>