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

audio/opus: bump consumers after update to 1.4

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

graphics/peruse: fix fetch

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.

graphics/peruse: update to 1.80

- this is the 2.0-beta 1 version

cleanup: remove trailing whitepaces

graphics/peruse: pet stage-qa

KDE_INVENT: drop WRKSRC hack

When USE_GITLAB was changed to follow upstream GitLab's change
in the way tag-tarballs were delivered, a hack was added to
KDE_INVENT because **that** GitLab installation lagged behind
(by one minor revision, Ithink). Now KDE's installation has
been upgraded, it had the same tag-tarball layout as other
GitLabs and the hack is no longer needed.

The ports that use KDE_INVENT have their distinfo updated,
but the ports themselves do not change so I'm not bumping
PORTREVISION; it's the same git checkout, just with different
icing on top.

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

Remove # $FreeBSD$ from Makefiles.

Use KDE_INVENT where appropriate

KDE ports that use unreleased versions / versions straight from git.

PORTVERSION or DISTVERSION increased:
- audio/amarok has a newer tag so the commit hash jumps.
- devel/heaptrack has a newer tag so the commit hash jumps.
- graphics/kooka advances to a newer commit, nothing spectacular.
- graphics/peruse advances a great deal to its current state, which
  is slightly-before-a-real-release. This one will be dropping KDE_INVENT
  and going to normally-released soon, says upstream.
- net/smb4k has a newer tag so the commit hash jumps.

PORTVERSION unchanged, but I didn't bump PORTREVISION either
because it's the same software:

- Remove empty lines after .include <bsd.port.mk>

Approved by:	portmgr blanket

Update devel/cmake to 3.15.2 (latest upstream release)

Release notes for the version updates are at:
	https://blog.kitware.com/cmake-3-15-0-available-for-download/
	https://blog.kitware.com/cmake-3-15-1-available-for-download/
	https://blog.kitware.com/cmake-3-15-2-available-for-download/

For FreeBSD, not much interesting has changed. Swift language support
might be useful.

A few ports were fixed as part of this exp-run (libemos not really
related to the CMake update, but in general). Thanks to antoine
for the exp-runs, tcberner for doing most of the prep-work.

PR:		239273
Submitted by:	tcberner

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/peruse: fix build

Add USES=compiler:c++11-lang to fix build:
  The compiler feature "cxx_decltype" is not known to CXX compiler

  "GNU"

  version 4.2.1.

Approved by:	mentors (implicite approval)

graphics/peruse: Spell LICENSE correctly

New port: graphics/peruse -- Comic Book Reader by KDE

https://peruse.kde.org/