gnu: kdelibs4support: Remove redundant inputs.

These are listed as propagated inputs already, no need
to list them as normal inputs again.

* gnu/packages/kde-frameworks.scm (kdelibs4support)[inputs]: Remove
  kconfigwidgets, kdesignerplugin, kdoctools, kguiaddons.

gnu: kdoctools: Symlink some files referred to by different names.

* gnu/package/kde-frameworks.scm (kdoctools)[arguments]
  <#:phases>'add-symlinks': New phase.

gnu: ktexteditor: Symlink some files referred to by different names.

* gnu/package/kde-frameworks.scm (ktexteditor)[arguments]
  <#:phases>'add-symlinks': New phase.

gnu: kdeclarative: Reduce the number of warnings when configuring.

* gnu/packages/kde-frameworks.scm (kdeclarative)[inputs]: Add libepoxy.
  [native-inputs]: Add pkg-config.

gnu: kglobalaccel: Reduce the number of warnings when configuring.

* gnu/packages/kde-frameworks.scm (kglobalaccel)[native-inputs]: Add
  pkg-config.

gnu: sonnet: Reduce the number of warnings when configuring.

* gnu/packages/kde-frameworks.scm (sonnet)[native-inputs]: Add pkg-config.

gnu: kidletime: Enable fallback mode to X-Screensaver based poller.

This does no harm and reduced the number of warnings. Also
pkg-config was added to reduce the number of warnings further.

* gnu/packages/kde-frameworks.scm (kidletime)[inputs]: Add
  libxscrnsaver. [native-inputs]: Add pkg-config.

gnu: kio: Symlink some files referred to by different names.

* gnu/package/kde-frameworks.scm (kio)[arguments]
  <#:phases>'add-symlinks': New phase.

gnu: kio: Adopt a patch from Nix.

* gnu/package/kde-frameworks.scm (kio)[arguments]
  <#:phases>'patch': New phase.

gnu: kio: Remove unused input.

This "acl" is not the "libacl" kio wants, but that libacl is not yet
available. Added a commend instead.

* gnu/packages/kde-frameworks.scm (kio)[inputs]: Remove acl.

gnu: kparts: Make tests pass again.

* gnu/packages/kde-frameworks.scm (kparts)[native-inputs]: Add
  shared-mime-info.

gnu: bluez-qt: Add comment about status of tests.

* gnu/packages/kde-frameworks.scm (bluez-qt)[arguments]: Add comment.

gnu: bluez-qt: Install udev-rules.

This requires setting UDEV_RULES_INSTALL_DIR since the CMakeLists.txt does not
base this any prefix.

* gnu/packages/kde-frameworks.scm (bluez-qt)[arguments]<#:configure-flags>:
  Remove INSTALL_UDEV_RULE=OFF, add UDEV_RULES_INSTALL_DIR.

gnu: kfilemetadata: Enable support for PDF files and audio files.

- Qt5 Multimedia module is needed to bild an extractor for audio files.
- poppler, which was defined as input, is not including the requested Qt
  support, thus poppler-qt is needed.

* gnu/packages/kde-frameworks.scm (kfilemetadata)[inuts]: Add qtmultimedia,
  replace poppler by poppler-qt5. [native-inputs]: Add pkg-config.

gnu: kdnssd: Enable service discovery on local network via avahi.

* gnu/packages/kde-frameworks.scm (kdnssd)[inputs]: Add avahi.

gnu: phonon: Enable building the Qt Designer plugin.

Add native-inputs pkg-config, qttools and update comments.

This enables building the Qt Designer plugin.

* gnu/packages/kde-frameworks.scm (phonon): [native-inputs]: Add pkg-config,
  qttools.  [arguments]<#configure-flags>: Remove
  PHONON_INSTALL_QT_EXTENSIONS_INTO_SYSTEM_QT, to avoid installing the
  Phonon-Qt-extension into /gnu/store/…-qtbase-…/.

gnu: kdesignerplugin: Add optional inputs.

Still missing: kwebkit (KF5WebKitConfig.cmake).

* gnu/packages/kde-frameworks.scm (kdesignerplugin)[inputs]: Add kcompletion,
  kconfigwidgets, kiconthemes, kitemviews, kkio, kplotting, ktextwidgets,
  kwidgetsaddons, kxmlgui, sonnet.

gnu: Add kdewebkit.

* gnu/package/kde-frameworks.scm (kdewebkit): New variable.

gnu: kwallet: Add optional input qgpgme.

Gpgme was already there, QGpgme was missing.

* gnu/packages/kde-frameworks.scm (kwallet)[inputs]: Add qgpgme.

gnu: kconfigwidgets: Add optional native-input kdoctools.

* gnu/packages/kde-frameworks.scm (kconfigwidgets)[native-inputs]:
  Add kdoctools.