gnu: dlib: Update to 19.2.

* gnu/packages/machine-learning.scm (dlib): Update to 19.2.
[arguments]: Enable previously failing tests. Fix truthiness of some phases.
[source]: End snippet on #t.

gnu: diffoscope: Update to 77.

* gnu/packages/package-management.scm (diffoscope): Update to 77.
[arguments]: Remove obsolete colordiff substitution. Adjust 'xxd' substitution
to source path renames. Fix test failure by making it required.

gnu: feh: Update to 2.18.2.

* gnu/packages/image-viewers.scm (feh): Update to 2.18.2.

gnu: guile-next: Update to 2.1.7.

* gnu/packages/guile.scm (guile-next): Update to 2.1.7.

gnu: lcms: Specify 'cpe-name'.

* gnu/packages/ghostscript.scm (lcms)[properties]: New field.

gnu: imagemagick: Update to 6.9.7-9.

* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.7-9.

gnu: usbredir: Use correct url.

* gnu/packages/spice.scm (usbredir)[source]: Update repository URL.

Signed-off-by: Ben Woodcroft <donttrustben@gmail.com>

daemon: Ensure proper alignment on the stack.

* nix/libstore/build.cc (startBuilder): When calling 'clone', increase
the step to 16 and ensure it aligns properly on the stack.

gnu: ardour: Update to 5.6.

* gnu/packages/audio.scm (ardour): Update to 5.6.

gnu: linux-libre: Update to 4.10.  Keep 4.9 as longterm release.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.10.
(%linux-libre-hash): Update hash.
(linux-libre-4.9): New variable.
* gnu/packages/linux-libre-4.10-x86_64.conf,
gnu/packages/linux-libre-4.10-i686.conf: New files.
* Makefile.am (KCONFIGS): Add them.

gnu: Add python-cycler.

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

gnu: Remove xf86-video-modesetting.

This is part of xorg-server since version 1.17:

https://cgit.freedesktop.org/xorg/xserver/commit/?id=35dc7c75150733dbcef8a18b6796f49a7c48ebee

* gnu/packages/xorg.scm (xf86-video-modesetting): Remove variable.
* gnu/services/xorg.scm (xorg-configuration-file, %default-xorg-modules):
Adjust accordingly.

gnu: jemalloc: Update to 4.4.0.

* gnu/packages/jemalloc.scm (jemalloc): Update to 4.4.0.
[source, home-page]: Update to current URLs.

gnu: qtractor: Use new home page.

* gnu/packages/music.scm (qtractor)[home-page]: Use new home page.

gnu: qtractor: Update to 0.8.1.

* gnu/packages/music.scm (qtractor): Update to 0.8.1.

gnu: linux-libre: Update to 4.9.11.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.9.11.
(%linux-libre-hash): Update hash.

gnu: linux-libre@4.4: Update to 4.4.50.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.50.

gnu: ntfs-3g: Fix patch for CVE-2017-0358.

This is a followup to commit 1a82ba660e88e731841882523084e5d878267b53.

* gnu/packages/patches/ntfs-3g-CVE-2017-0358.patch: Make patch apply.

gnu: pioneers: Update to 15.4.

* gnu/packages/games.scm: Update to 15.4.

Signed-off-by: Kei Kebreau <kei@openmailbox.org>

Revert "updated pioneers to latest version."

This reverts commit 2f7eccc048de6526ef3f4c2de1c67ea0455ccb0c.