filesystems: add new category for file systems and related utilities

The filesystems category houses file systems and file system utilities.
It is added mainly to turn the sysutils/fusefs-* pseudo-category into
a proper one, but is also useful for the sundry of other file systems
related ports found in the tree.

Ports that seem like they belong there are moved to the new category.
Two ports, sysutils/fusefs-funionfs and sysutils/fusefs-fusepak are
not moved as they currently don't fetch and don't have TIMESTAMP set
in their distinfo, but that is required to be able to push a rename
of the port by the pre-receive hook.

Approved by:	portmgr (rene)
Reviewed by:	mat
Pull Request:	https://github.com/freebsd/freebsd-ports/pull/302
PR:		281988

sysutils/unetbootin: amend MASTER_SITES, fix minor indentation bug

As of r471558 (now commit a7f0cdea95a2) the project had moved from
SourceForge to GitHub, yet distfiles are provided at both locations.
Prefer the former by default to enjoy its vast selection of mirrors
while downloads from the latter are less reliable in certain parts
of the world (e.g. I'm getting truncated files off it all the time).

Depend on `sysutils/e2fsprogs-core' in the remaining three ports

Chase commit 14e733a6bb4b and depend on the new port origin which
most utilities and libraries now belong to.  This would often go
unnoticed as `sysutils/e2fsprogs-core' would be pulled regardless,
but might cause package build tools to always rebuild consumers.

PR:	268551

Mk/Uses: always use colon for build/run suffix

Most USES use a colon for build/run(/test) suffixes. Change kde.mk,
qt.mk and pyqt.mk to do the same, and update all ports using that.

Document in CHANGES.

PR:			266034
Exp-run by:		antoine
Approved by:		tcberner (mentor)
Differential Revision:	https://reviews.freebsd.org/D36349

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.

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/unetbootin: switch from p7zip to 7-zip

PR:		260866, 261569
Approved by:	danfe@ (maintainer)

devel/e2fsprogs-libss: merge to sysutils/e2fsprogs

This is to break dependency cycles between e2fsprogs-libss and
e2fsprogs (see 254751 comment #18 for details), and to avoid creating
yet another split-out port, then for e2fsprogs's libcom_err.

Bump PORTREVISION of the four e2fsprogs consumers to flush out
their e2fsprogs-libss dependency records.

PR:		254751
Reported by:	Felix Palmen
PR:		261217
Reported by:	tech-lists@zyxst.net
Fixes:		8e6ae60 devel/e2fsprogs-libss: use local compile_et...

Approved by:	prior maintainer timeout (Ben Kaduk, 7 months) on 254751

sysutils/unetbootin: update UNetbootin to the latest version (+)

- Update to version 702, which finally integrates Qt 5 support,
  allowing to remove those hunks from our patches
- Show program version in the main window title (some users like
  to post screenshots when reporting problems, this would make
  more obvious which version they were using)

Remove # $FreeBSD$ from Makefiles.

Update UNetbootin to version 681.

Found out via:	repology.org

Explicitly tell users that UNetbootin requires mounted MSDOSFS (FAT)
filesystem to work against.

PR:	239344

- Update to version 677
- Avoid segmentation fault

PR:	236972

Convert to UCL & cleanup pkg-message (categories s)

net/unetbootin: prepare for Qt 5.13

PR:		238782

- Resurrect and apply unofficial patch from Gentoo to build against
  Qt version 5 (this breaks unetbootin::lstFtpDirFiles() due to
  https://bugreports.qt.io/browse/QTBUG-26294)
- Comment out all sources that require FTP LIST command
- Don't wait until file is fully downloaded before dumping it on disk
- Fix some QNetworkReply/QFile resource freeing bugs
- Delete unetbootin::dlprogressupdate64() because it's never used
- Fix some slot warnings while here

Patches by:	Valeriy Malov <jazzvoid@gmail.com>
Obtained from:	https://bugs.gentoo.org/show_bug.cgi?id=644360

Qt4 deprecation: Remove Qt4 and its consumes.

2019-03-15 accessibility/qt4-accessible: Qt4 has been EOL since december 2015
2019-03-15 astro/qlandkartegt: Qt4 has been EOL since december 2015
2019-03-15 astro/stellarium-qt4: Qt4 has been EOL since december 2015
2019-03-15 astro/xglobe: Qt4 has been EOL since december 2015
2019-03-15 audio/acoustid-fingerprinter: Qt4 has been EOL since december 2015
2019-03-15 audio/cueplayer: Qt4 has been EOL since december 2015
2019-03-15 audio/esperanza: Qt4 has been EOL since december 2015
2019-03-15 audio/lastfm-desktop: Qt4 has been EOL since december 2015
2019-03-15 audio/minitunes: Qt4 has been EOL since december 2015
2019-03-15 audio/mixxx20: Qt4 has been EOL since december 2015
2019-03-15 audio/mumble: Qt4 has been EOL since december 2015
2019-03-15 audio/murmur: Qt4 has been EOL since december 2015
2019-03-15 audio/puddletag: Qt4 has been EOL since december 2015

Mark QT4 ports/functionality for removal on 2019-03-15

While here, chase some KDE4 ports and functionality, these are scheduled for
removal on 2018-12-31. Change the default option/flavor to QT5 where applicable
or use alternative toolkits like GTK.

Submitted by:	tcberner
Reviewed by:	adridg, jhale, rene, tcberner
Approved by:	portmgr (implicit, flavor hook)
Differential Revision:	https://reviews.freebsd.org/D17741

Replace bsd.qt.mk by Uses/qt.mk and Uses/qt-dist.mk

From now on, ports that depend on Qt4 will have to set
	USES=		qt:4
	USE_QT=		foo bar
ports depending on Qt5 will use
	USES=		qt:5
	USE_QT=		foo bar

PR:		229225
Exp-run by:	antoine
Reviewed by:	mat
Approved by:	portmgr (antoine)
Differential Revision:	-https://reviews.freebsd.org/D15540

- Update `sysutils/unetbootin' to version 661, which had added support for
  Ubuntu 18.04 and some minor bugfixes
- The project had moved to GitHub from SF, but do not switch to USE_GITHUB
  just yet (distfile size would be 16257579 bytes in this case, apparently
  because upstream does not know how to prepare GitHub releases properly)
- Amend the regex when patching `main.cpp' for better ${PREFIX} support:
  previously it was not covering `/usr/bin/unetbootin'

Found out via:	repology.org

Unbreak the build against new Clang version 6.0.0.

PR:	224989

- Update `sysutils/unetbootin' to version 657, which had added
  support for Ubuntu 17.10 (Artful Aardvark) [*]
- Once again, reword the comment about using getvfsbyname(3)
- TIMESTAMP (unetbootin-source-657.tar.gz) = 1508836950

Found out via:	repology.org [*]

- Rephrase the comment about why we're calling getvfsbyname(3) to make
  more sense: saving a few CPU cycles by comparing integers instead of
  strings is just a nice collateral bonus and not really important
- Fix free disk space calculation in unetbootin::checkifoutofspace();
  previously it was totally bogus (multiplying `f_bavail' and `f_bfree'
  fields of `struct statfs', really?), and bump threshold to 1024 KB
  from the original 1024 bytes (sic)
- Add a `pkg-message' suggesting a work-around for a common problem of
  getting "Boot error" message when booting off MBR-partitioned drives
- Couple of cosmetic changes: move NO_WRKSUBDIR line where it normally
  belongs and sort USE_QT4 values; extend port description text a bit

UNetbootin allows to create bootable Live USB drives for Ubuntu, Fedora,
and other Linux distributions without burning a CD.  This is useful when
supplied ISO image cannot be directly written to USB drive or SD card.

WWW: http://unetbootin.sourceforge.net/