gnu: dconf: Update to 0.26.1.

* gnu/packages/gnome.scm (dconf): Update to 0.26.1.

gnu: glade: Update to 3.20.1.

* gnu/packages/gnome.scm (glade): Update to 3.20.1.

gnu: tor: Enable directory protocol compression.

* gnu/packages/tor.scm (tor)[native-inputs]: Add pkg-config.
[inputs]: Add xz and zstd.

gnu: tor: Fix typo.

* gnu/packages/tor.scm (tor)[inputs]: Move unquote to its operand.

gnu: octave: Reference makeinfo with absolute path.

* gnu/packages/maths.scm (octave)[arguments]: Add configure-makeinfo phase.
[inputs]: Add texinfo.
[native-inputs]: Remove texinfo.

publish: Cache uncompressed nars as well.

Fixes <https://bugs.gnu.org/28664>.
Reported by Maxim Cournoyer <maxim.cournoyer@gmail.com>.

* guix/scripts/publish.scm (bake-narinfo+nar): When COMPRESSION is
'none, write NAR instead of doing nothing.
(make-request-handler): Use 'render-nar/cached' for /nar URLs with no
compression.
* tests/publish.scm ("with cache", "with cache, uncompressed"): Adjust
expected result accordingly.

gnu: vte-ng: Update to 0.50.1.a.

* gnu/packages/gnome.scm (vte-ng): Update to 0.50.1.a.

gnu: openjpeg: Update to 2.3.0.

* gnu/packages/patches/openjpeg-CVE-2017-12982.patch,
gnu/packages/patches/openjpeg-CVE-2017-14040.patch,
gnu/packages/patches/openjpeg-CVE-2017-14041.patch,
gnu/packages/patches/openjpeg-CVE-2017-14151.patch,
gnu/packages/patches/openjpeg-CVE-2017-14152.patch,
gnu/packages/patches/openjpeg-CVE-2017-14164.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.
* gnu/packages/image.scm (openjpeg): Update to 2.3.0.
[source](patches): Remove.
* gnu/packages/gstreamer.scm (gst-plugins-bad)[arguments]: Adjust openjpeg
substitution.

gnu: imagemagick: Update to 6.9.9-18.

Fixes <https://bugs.gnu.org/28692>.
Reported by Diego Nicola Barbato <dnbarbato@posteo.de>.

* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.9-18.

gnu: libpng@1.2: Update to 1.2.59.

* gnu/packages/image.scm (libpng-1.2): Update to 1.2.59.

gnu: certbot, python-acme: Update to 0.19.0.

* gnu/packages/tls.scm (certbot, python-acme): Update to 0.19.0.

gnu: lightning: Update to 2.1.2.

* gnu/packages/assembly.scm (lightning): Update to 2.1.2.

gnu: Add pdsh.

* gnu/packages/ssh.scm (pdsh): New variable.

gnu: Add imb-openmpi.

* gnu/packages/benchmark.scm (imb): New procedure.
(imb-openmpi): New variable.

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

guix system: Error out when passed a wrong file system UUID/label.

* guix/scripts/system.scm (check-file-system-availability): New
procedure.
(perform-action): Use it.

file-systems: Add a 'location' field to <file-system>.

* gnu/system/file-systems.scm (<file-system>)[location]: New field.

uuid: Add 'uuid=?' and use it.

* gnu/system/uuid.scm (uuid=?): New procedure.
* tests/uuid.scm ("uuid=?"): New test.
* gnu/build/file-systems.scm (partition-uuid-predicate)
(luks-partition-uuid-predicate): Use it instead of 'bytevector=?'.

gnu: Add python-numpy-next.

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

Revert "gnu: python-numpy: Update to 1.13.1."

This reverts commit 025b196d9b739418dd9d305864fdb1fb1d0d5af2.

This is necessary as neither the current release nor the latest development
version of python-pandas can be build with numpy 1.13.x.

gnu: curl: Update replacement to 7.56.0 [security fixes].

Fixes CVE-2017-1000254.
See <https://curl.haxx.se/docs/adv_20171004.html> for details.

* gnu/packages/curl.scm (curl)[replacement]: Update to 7.56.0.
(curl-7.55.0): Rename to ...
(curl-7.56.0): ... this.
[arguments]: Remove 'fix-Makefile' phase.
[source]: Remove patch.
* gnu/packages/patches/curl-bounds-check.patch: Delete it.
* gnu/local.mk (dist_patch_DATA): Remove it.