sysutils: remove 'Created by' lines

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

  *  <jsmith@resonatingmedia.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Landwehr <aaron@snaphat.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Adrian Chadd
  *  Adrian Chadd <adrian@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alan Eldridge <alane@FreeBSD.org>
  *  Alan Eldridge <alane@geeksrus.net>
  *  Aldis Berjoza <aldis@bsdroot.lv>
  *  Alex Deiter <alex.deiter@gmail.com>

sysutils/jailrc: fix typos in pkg-descr.

all: Remove all other $FreeBSD keywords.

Remove # $FreeBSD$ from Makefiles.

- Switch to options helpers
- Add some NO_ARCHes
- Fix and unsilence some installation commands
- Other minor fixes

Approved by:	portmgr blanket

1: Stagify.
2: switch to options helper.

Approved by:	portmgr@ (blanket approval)

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

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.

Jailrc is an improved startup/shutdown script for FreeBSD jails.

It contains the following changes to the original /etc/rc.d/jail script:

- parameters support: you can specify any parameters supported by jail(8)
- ZFS support: you can deletate ZFS datasets to jails
- jails are not identified by a file in /var/spool/jail anymore
- two new commands "create" and "remove" to manage persistent jails

Please refer to the README file for more information.

Martin Matuska <mm_at_FreeBSD_dot_org>