net/libutp: Update to g20180515.

- move to the net-p2p category
- change PORTNAME to libutp from bittorrent-libutp
- switch to transmissions upstream
- switch to using cmake
- take maintainership. The port is clearly abbandoned

Reported by:	Vasileios Kalampakas <stoneforger@gmail.com>

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: remove 'Created by' lines

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

  *  <ports@c0decafe.net>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Straup Cope <ascope@cpan.org>
  *  Aaron Zauner <az_mail@gmx.at>
  *  Adam Jette <jettea46@yahoo.com>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Alan Eldridge <alane@geeksrus.net>
  *  Alex Bakhtin <Alex.Bakhtin@gmail.com>
  *  Alex Deiter <Alex.Deiter@Gmail.COM>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alex Dupre <sysadmin@alexdupre.com>

Remove # $FreeBSD$ from Makefiles.

Fix build with src r354909 applied.

The referenced change made NO_INSTALLLIB, NO_MAN, and NO_PROFILE into
errors causing these ports that declare them and use the FreeBSD make
infrastructure as part of their build to fail.

When the offending variables occur in a BSD Makefile, NO_MAN becomes
MAN= and NO_INSTALLLIB and NO_PROFILE become MK_INSTALLLIB=no and
MK_PROFILE=no respectively.  When declared in the environment they
become WITHOUT_<FOO>.

net/libutp: unbreak build with Clang 6 (C++14 by default)

c++  -O2 -pipe -fstack-protector -fno-strict-aliasing  -fno-exceptions -fno-rtti
-I/wrkdirs/usr/ports/net/libutp/work/libutp-7c4f19a
-I/wrkdirs/usr/ports/net/libutp/work/libutp-7c4f19a/utp_config_lib -DPOSIX -Wall
 -Wno-c++11-extensions  -c utp.cpp -o utp.o
utp.cpp:1708:91: error: invalid suffix on literal; C++11 requires a space
between literal and identifier [-Wreserved-user-defined-literal]
                        "scaled_gain:%f rtt:%u rate:%u quota:%d wnduser:%u
rto:%u timeout:%d get_microseconds:"I64u" "
                                                                                
                              ^

utp.cpp:1793:79: error: invalid suffix on literal; C++11 requires a space
between literal and identifier [-Wreserved-user-defined-literal]
        LOG_UTPV("0x%08x: Got %s. seq_nr:%u ack_nr:%u state:%s version:%u
timestamp:"I64u" reply_micro:%u",
                                                                                
    ^

Reported by:	antoine (via bug 224669)

Update ports in the n* categories to not use GH_COMMIT.

With minor cleanups to make things simpler.

With hat:	portmgr
Sponsored by:	Absolight

Add a patch to fix 64-bit specific warnings in the just-added utilities.

PR:		197009
Submitted by:	Jan Beich

Add a patch fixing a long-standing security problem. Bump PORTREVISION.

PR:		196351
Differential Revision:	D1593
Submitted by:	Jan Beich
Security:	https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-6129

While here, arrange for building a few of the small utilities bundled
with library, and install them along with another potentially useful
header-file.

Sponsored by:	http://libpipe.com/

Convert to USE_GITHUB

PR:		196616
Submitted by:	jbeich@vfemail.net
Approved by:	mi@FreeBSD.org (maintainer)

Cleanup plist

Update from 0.20120526 to 0.20130514.

PR:		194036
Submitted by:	Jan Beich

Modernize
Support stage

Part 2 at removing now useless FETCH_ARGS redifition

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

- Remove MAKE_JOBS_SAFE variable

Approved by:	portmgr (bdrewery)

Add NO_PROFILE=yes to these Makefiles to prevent building/installing the
_p.a flavor of the libraries.

Submitted by:	pointyhat's bot

Add port of libutp -- a TCP-like networking API using UDP-transport.