gnu: red-eclipse: Add store "data" package path as default.

* gnu/packages/games.scm (red-eclipse): Remove extra spaces. Make version
respect documentation.
[arguments]: Add "prefix" to make-flags. Add
"add-store-data-package-path-as-default" phase. Improve "copy-data" phase.

Signed-off-by: Kei Kebreau <kkebreau@posteo.net>

gnu: ardour: Update to 5.12.

* gnu/packages/audio.scm (ardour): Update to 5.12.

gnu: guitarix: Update to 0.36.0.

* gnu/packages/audio.scm (guitarix): Update to 0.36.0.

gnu: zstd: Update to 1.3.2.

* gnu/packages/compression.scm (zstd): Update to 1.3.2.
[source]: Remove snippet.
[license]: Add gpl2, gpl3+, and expat to the list.

gnu: modular-qt: Update to 5.9.2.

* gnu/packages/qt.scm (qtbase. qtsvg, qtimageformats, qtx11extras,
qtxmlpatterns, qtdeclarative, qtconnectivity, qtwebsockets, qtsensors,
qtmultimedia, qtwayland, qtserialport, qtserialbus, qtwebchannel,
qtlocation, qttools, qtscript, qtquickcontrols, qtquickcontrols2,
qtgraphicaleffects, qtgamepad, qtscxml, qtpurchasing, qtcanvas3d,
qtcharts, qtdatavis3d, qtremoteobjects, qtspeech): Update to 5.9.2.
(qtnetworkauth): Same.
[arguments]: Add phase to help test suite pass.

gnu: qtcharts, qtdatavis3d: Update license information.

* gnu/packages/qt.scm (qtcharts, qtdatavis3d)[license]: New field.

gnu: modular-qt: Add synopsis and descriptions for packages.

* gnu/packages/qt.scm (qtsvg, qtimageformats, qtx11extras,
qtxmlpatterns, qtdeclarative, qtdeclarative-render2d, qtconnectivity,
qtwebsockets, qtsensors, qtmultimedia, qtwayland, qtserialport,
qtserialbus, qtwebchannel, qtlocation, qttools, qtscript,
qtquickcontrols, qtquickcontrols2, qtgraphicaleffects, qtgamepad,
qtscxml, qtpurchasing, qtcanvas3d, qtdatavis3d, qtnetworkauth,
qtremoteobjects, qtspeech)[synopsis, description]: New fields.

gnu: qtbase: Use libinput-minimal.

This works around qtbase depending on gtk+.

* gnu/packages/qt.scm (qtbase)[inputs]: Replace libinput with
libinput-minimal.

gnu: Add qtspeech.

* gnu/packages/qt.scm (qtspeech): New variable.

gnu: Add qtremoteobjects.

* gnu/packages/qt.scm (qtremoteobjects): New variable.

gnu: Add qtnetworkauth.

* gnu/packages/qt.scm (qtnetworkauth): New variable.

gnu: Add eid-mw.

* gnu/packages/security-token.scm (eid-mw): New variable.

gnu: Add libproxy.

* gnu/packages/networking.scm (libproxy): New variable.

gnu: Add hdf-java.

* gnu/packages/maths.scm (hdf-java): New variable.

gnu: Add java-slf4-simple.

* gnu/packages/java.scm (java-slf4j-simple): New variable.

system: operating-system-etc-service: Set XCURSOR_PATH.

* gnu/system.scm (operating-system-etc-service): Set XCURSOR_PATH environment
variable so that libxcursor finds cursors in user and system profiles.
* gnu/packages/xorg.scm (libxcursor): Add a TODO for better handling of
XCURSOR_PATH in other profiles.

gnu: python2-unittest2: Update to 1.1.0.

* gnu/packages/python.scm (python2-unittest2): Update to 1.1.0.
* gnu/packages/patches/python2-unittest2-remove-argparse.patch: New file.
* gnu/local.mk: Add it.

gnu: Add python-traceback2.

* gnu/packages/python.scm (python-traceback2, python2-traceback2): New
  variables.

gnu: Add python-linecache2.

* gnu/packages/python.scm (python-linecache2, python2-linecache2): New
  variables.

gnu: python-netaddr: Fix the source URL.

* gnu/packages/python.scm (python-netaddr, python2-netaddr): Fix the source URL.