KDE: make ecm a build-only dependency in kde@ maintained ports

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.

*: fix tab vs. space issues, and comments according to the guide.

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

graphics/kdiagram: update to 2.8.0

graphics/kdiagram: update to 2.7.0

graphics/kdiagram: update to 2.6.3

graphics/kdiagram: update to 2.6.2

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

graphics/kdiagram: fix master sites.

graphics/kdiagram: update to 2.6.1

Fix Qt5 symbol version scripts to put the catch-all clause first.  When
a symbol matches multiple clauses the last one takes precedence.  If the
catch-all is last it captures everything.  In the case of Qt5 libraries
this caused all symbols to have a Qt_5 label while some should have
Qt_5_PRIVATE_API.  This only affects lld because GNU ld always gives the
catch-all lowest priority.

Older versions of Qt5Webengine exported some memory allocation symbols from
the bundled Chromium.  Version 5.9 stopped exporting these [1] but the
symbols were kept as weak wrappers for the standard allocation functions to
maintain binary compatibility. [2][3]  The problem is that the call to the
standard function in these weak wrappers is only resolved to the standard
function if there's a call to this standard function in other parts of
Qt5Webengine, because only then is there a non-weak symbol that takes
precedence over the weak one.  If there's no such non-weak symbol the call

Change cmake default behaviour to outsource.

Ports that build out of source now simply can use "USES=cmake"
instead of "USES=cmake:outsource". Ports that fail to build
out of source now need to specify "USES=cmake:insource".

I tried to only set insource where explictely needed.

PR:		232038
Exp-run by:	antoine

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

graphics/kdiagram: fix build with GCC-based architectures

PR:		232258
Submitted by:	Piotr Kubaj <pkubaj@anongoth.pl>

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

Drop PKGNAMESUFFIX.

We should just call the package "kdiagram", like the other Calligra ports.

Reported by:	tcberner

Update the Calligra ports to 3.0.1.

The 3.x series is based on KDE Frameworks 5, and some programs have been split
into separate ports:
- Sheets, Words & co are in editors/calligra.
- Krita is in graphics/krita.
- Kexi is in databases/kexi.
- The calligra-l10n* ports are now part of editors/calligra itself.

Okular support in editors/calligra and Marble support in textproc/kreport have
been disabled for now because they need the KF5 version of those ports.

Thanks to everyone who's tested it and worked on it in our area51 repository.

Submitted by:	Adrian de Groot <groot@kde.org>, tcberner, rakuco
Reviewed by:	rakuco, mat (earlier versions)
Differential Revision:	https://reviews.freebsd.org/D10167