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

Add another reason for deletion.

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

Remove libiconv.so.3 compatibility link that was added in r374303 to
prevent massive PORTREVISION bumps.  Bump dependent ports that have not
been bumped since.

Cleanup depends

Convert a bunch of USE_BZIP2 to USES=tar:bzip2

Approved by:	portmgr (not really, but touches unstaged ports)

The FreeBSD x11@ and graphics team proudly presents
a zeising, kwm production, with help from dumbbell, bdrewery:

NEW XORG ON FREEBSD 9-STABLE AND 10-STABLE

This update switches over to use the new xorg stack by default on FreeBSD 9
and 10 stable, on osversions where vt(9) is available.
It is still possible to use the old stack by specifying WITHOUT_NEW_XORG in
/etc/make.conf .
FreeBSD 8-STABLE and released versions of FreeBSD still use
the old version.
A package repository with binary packages for new xorg will
be available soon.

This patch also contains updates of libxcb and related ports, pixman, as well

Chase boost and icu bump
While here convert some LIB_DEPENDS

- Convert to USES=qmake (and other USES while I'm here)
- Add state support
- Convert LIB_DEPENDS to new style, adjust USE_QT4 components, etc.

Approved by:	portmgr (blanket approval)

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

- Fix build after iconv change [1]
- Fix build with clang/libc++ ([2] for graphics/ipe)

While here for databases/spatialite:
- Trim Makefile headers
- Remove check for unsupported FreeBSD versions

Submitted by:	marino [1]
Reported by:	swills, antoine [1]
Submitted by:	bsam [2]
Approved by:	portmgr (bapt, implicit)

Chase icu, graphite2 and libexttextcat bump

Update PCRE to 8.32
Introduces the UTF-32 library pcre32
Bump PORTREVISION in dependent ports

Fix dependencies.

PR:		171175
Submitted by:	Stefan Grundmann <sg2342@googlemail.com>

Add new qxv port.

qxv is an image viewer whose interface is key-to-key compatible with the
classic xv program. It is meant to replace xv, which is old, unmaintained,
not Free Software, and therefore not shipped with most software
distributions anymore.