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

Fix qt4 ports on armv6.

Due to a misspelling in GCC [1] (probably) the check for the ARMv6KZ platform
used ARM_ARCH_6ZK instead of ARM_ARCH_6KZ.

[1] https://gcc.gnu.org/ml/gcc-patches/2015-06/msg01679.html

PR:		210027
Submitted by:	Mikael Urankar <mikael.urankar@gmail.com>
Reviewed by:	rakuco
Differential Revision:	https://reviews.freebsd.org/D8322

Update Qt5 to 5.7.1, and unify the Qt4 and Qt5 ports some more

* Update Qt5 to 5.7.1
* Move Qt4 binaries to lib/qt4/bin
* Move Qt5 libraries to lib/qt5/lib
  By moving the libraries we should finally be able to get rid of the inplace
  upgrade bug (see ports bugs 194088, 195105 and 198720):  when Qt5's libraries
  were lying in /usr/local/lib, which would often get added by pkgconfig to the
  linker paths via dependencies, the already installed libraries were linked
  against, instead of the ones that were being built. This forced us to make
  sure, that -L${WRKSRC}/lib was always coming before -L/usr/local/lib in the
  linker flags. With this change this should no longer be the case.
* Rename some ports to match the rest (foo-qtX -> qtX-foo)
* Depend on new port misc/qtchooser [see UPDATING & CHANGES]

There are several new Qt5 ports which all have been created by Marie Loise
Nolden
<nolden@kde.org>. Thanks again.

PR:		216797
Exp-Run by:	antoine
Reviewed by:	rakuco, mat, groot_kde.org
Approved by:	rakuco (mentor)
Differential Revision:	https://reviews.freebsd.org/D9213

Introduce new USE_QT4 component linguisttools for lrelease/lupdate tools
split from from devel/qt4-linguist (similar to Qt 5 ports). These console
tools are often used for localization support in Qt ports, having them
standalone is quite useful. This work is based on Tobias Berner patch [1].

PR:             190929 [1]
Requested by:	amdmi3, koobs