gnu: erlang: Use HTTPS home page.

* gnu/packages/erlang.scm (erlang)[home-page]: Use HTTPS with the new
canonical domain.

gnu: Add gzdoom.

* gnu/packages/games.scm (gzdoom): New variable.
* gnu/packages/patches/gzdoom-search-in-installed-share.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add fluid-3.

* gnu/packages/audio.scm (fluid-3): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: guix: Update snapshot to bdf0c64.

* gnu/packages/package-management.scm (guix): Update to bdf0c64.
[arguments] <copy-bootstrap-guile>: Move after 'check' phase.  Rewrite
to use "guix download" and to intern only one or two tarballs.
[inputs]: Remove "boot-guile/*".  Add "boot-guile" and, optionally,
"boot-guile/i686".

services: avahi: Publish '_workstation._tcp' by default.

This reverts to the behavior of avahi-daemon prior to Avahi 0.7 (commit
550f4509acf2c0f67882260414b0bb2843e07465).

* gnu/services/avahi.scm (<avahi-configuration>)[publish-workstation?]:
New field.
(configuration-file): Honor it.

services: avahi: Read PID file from /run.

* gnu/services/avahi.scm (%avahi-activation, avahi-shepherd-service):
Use /run/avahi-daemon/ instead of /var/run/avahi-daemon/.  This was the
case since the switch to Avahi 0.7 (commit
550f4509acf2c0f67882260414b0bb2843e07465).

gnu: qt.scm: Remove unneeded import.

* gnu/packages/qt.scm (define-module): Don't import (gnu packages base).

gnu: Add xorgproto.

* gnu/packages/xorg.scm (xorgproto): New public variable.

gnu: lvm2: Remove obsolete phase.

* gnu/packages/linux.scm (lvm2)[arguments]: Remove MAKE-OBJECTS-WRITABLE-PHASE.

gnu: argon2: Update to 20171227.

* gnu/packages/password-utils.scm (argon2): Update to 20171227.
[arguments]: Add OPTTEST=1 to #:make-flags to prevent "-march=native".  Remove
custom install phase.  Add 'patch-Makefile' phase.
[license]: Add ASL2.0.

gnu: Add qqc2-desktop-style.

* gnu/packages/kde-frameworks.scm (qqc2-desktop-style): New
  variable.

gnu: knotifications: Add optional input "qtspeech".

* gnu/pacakges/kde-frameworks.scm (knotifications)[inputs]: Add
  qtspeech.

gnu: ktextwidgets: Add optional input "qtspeech".

* gnu/pacakges/kde-frameworks.scm (ktextwidgets)[inputs]: Add
  qtspeech.

gnu: qca: Use mirror://kde scheme for source-url.

* gnu/packages/kde.scm (qca)[source]: Use mirror://kde scheme.

gnu: snorenotify: Use mirror://kde scheme for source-url.

* gnu/packages/kde.scm (snorenotify)[source]: Use mirror://kde scheme.

gnu: libkomparediff2: Use mirror://kde scheme for source-url.

* gnu/packages/kde.scm (libkomparediff2)[source]: Use mirror://kde
  scheme.

gnu: libkomparediff2: Update to 17.12.1

* gnu/packages/kde.scm(libkomparediff2): Update to 17.12.1.
  [source] Switch to KDE mirror, use mirror://kde scheme.

gnu: libksysguard: Update to 5.11.5.

* gnu/packages/kde.scm (libksysguard: Update to 5.11.5).

gnu: kpmcore: Update to 3.3.0

* gnu/packages/kde-frameworks.scm (kpmcore): Update to 3.3.0.

gnu: kde-frameworks: Update to 5.42.0 resp. 5.42.1

Beside simple updating:
- Change all todo-comments for test-cases into "fixme" comments to make them
  easier to find.
- breeze-icons: Blacklist a test failing at build.kde.org, too.
- extra-cmake-modules: Patch out a vanised test-case.
- kfilemetadata: Can now run the test-suite uninstalled. Blacklist a failing
  test-case.
- kimageformats: No longer symlink plugins into ./bin for testing.
- ktexteditor: Remove now unused patch.
- plasma-framework: Add input kirigami
- sonnet: For testing set QT_QPA_PLATFORM=offscreen.

* gnu/packages/kde-frameworks.scm (attica, baloo, bluez-qt, kactivities,
  kactivities-stats, kapidox, karchive, kauth, kbookmarks, kcmutils, kcodecs,
  kcompletion, kconfig, kconfigwidgets, kcoreaddons, kcrash, kdbusaddons,
  kde-frameworkintegration, kdeclarative, kded, kdelibs4support,
  kdesignerplugin, kdesu, kdewebkit, kdnssd, kdoctools, kemoticons,
  kglobalaccel, kguiaddons, khtml, ki18n, kiconthemes, kidletime, kinit, kio,
  kirigami, kitemmodels, kitemviews, kjobwidgets, kjs, kjsembed, kmediaplayer,
  knewstuff, knotifications, knotifyconfig, kpackage, kparts, kpeople,
  kplotting, kpty, kross, krunner, kservice, ksyntaxhighlighting,
  ktextwidgets, kunitconversion, kwallet, kwayland, kwindowsystem, kxmlgui,
  kxmlrpcclient, modemmanager-qt, networkmanager-qt, oxygen-icons,
  prison, solid, threadweaver): Update to 5.42.0.
  (kwidgetsaddons): Update to 5.42.1.
  (breeze-icons): Update to 5.42.0. [#:phases]<disable-failing-test> New
  phase.
  (extra-cmake-modules): Update to 5.42.0.
  [#:phases]<post-5.42.0-release-fix>: New phase.
  (kfilemetadata): Update to 5.42.0. [#:phases]: No longer move check behind
  install. [#:phases]<check-setup> Remove. [#:phase]<disable-failing-test> New
  phase.
  (kimageformats): Update to 5.42.0. [#:phases]<check-setup>: No longer
  symlink plugins into ./bin.
  (ktesteditor)[source]: Remove patch.
  (plasma-framework)[inputs]: Add  kirigami
  (sonnet): Update to 5.42.0. [#:phases]<check-setup> New phase.
* gnu/packages/patches/ktexteditor-5.39.0-autotests-dependencies.patch:
  Remove file.
* gnu/local.mk (dist_patch_DATA): Remove it.