gnu: Add neomutt.

* gnu/packages/mail.scm (neomutt): New variable.

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

services: Make 'static-networking' extensible.

This allows users to statically define several interfaces.

* gnu/services/networking.scm (<static-networking>)[provision]
[name-servers]: Add default values.
(static-networking-shepherd-service)
(static-networking-etc-files)
(static-networking-shepherd-services): New procedures.
(static-networking-service-type): Change to extend both
SHEPHERD-ROOT-SERVICE-TYPE and ETC-SERVICE-TYPE.
(static-networking-service): Remove default value of #:provision.
Implement using 'simple-service'.
* gnu/services/base.scm (%base-services): Replace
'static-networking-service' call with 'service' form.
* doc/guix.texi (Networking Services): Update documentation.

gnu: libevent: Skip tests that fail on 32bit.

* gnu/packages/patches/libevent-2.1-skip-failing-test.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/libevent.scm (libevent)[source]: Use it.

gnu: r-edger: Add r-statmod to inputs.

* gnu/packages/bioinformatics.scm (r-edger)[propagated-inputs]: Add r-statmod.

gnu: Add freeciv.

* gnu/packages/games.scm (freeciv): New variable.

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

gnu: Add zpaq.

* gnu/packages/compression.scm (zpaq): New variable.

download: Add ‘url-fetch/zipbomb’.

From this suggestion by Ludovic Courtès:
<http://lists.gnu.org/archive/html/guix-devel/2016-09/msg01983.html>

* guix/download.scm (url-fetch/zipbomb): New procedure.

download: url-fetch/tarball: Make ‘name’ truly optional.

* guix/download.scm (url-fetch/tarbomb): Fall back to ‘file-name’ if
‘name’ is #f, like the regular ‘url-fetch’ does.
* gnu/packages/bioinformatics.scm (muscle)[source]: Remove ‘file-name’.
* gnu/packages/engineering.scm (fastcap)[source]: Likewise.
* gnu/packages/scheme.scm (scmutils)[source]: Likewise.

gnu: Add nyx.

* gnu/packages/tor.scm (nyx): New variable.

gnu: tor: Use ‘license:’ prefix instead of #:select.

* gnu/packages/tor.scm (tor, torsocks, privoxy, onionshare)[license]:
Add prefix.

gnu: youtube-dl: Update to 2017.01.29.

* gnu/packages/video.scm (youtube-dl): Update to 2017.01.29.

gnu: python-stem: Update to 1.5.4.

* gnu/packages/python.scm (python-stem): Update to 1.5.4.

gnu: gstreamer: Update to 1.10.3.

* gnu/packages/gstreamer.scm (gstreamer): Update to 1.10.3.
(gst-plugins-base): Likewise.
(gst-plugins-good): Likewise.
(gst-plugins-bad): Likewise.
(gst-plugins-ugly): Likewise.
(gst-libav): Likewise.
(python-gst): Likewise.

gnu: xf86-video-intel: Update to 2.99.917-2-9fe04af.

* gnu/packages/xorg.scm (xf86-video-intel): Update to 2.99.917-2-9fe04af.

gnu: fio: Enable optional helper scripts.

* gnu/packages/benchmark.scm (fio)[arguments]: Add 'patch-paths' and
'wrap-python-scripts' phases.
[inputs]: Add GNUPLOT, PYTHON-2, PYTHON2-NUMPY and PYTHON2-PANDAS.

gnu: fio: Update to 2.17.

* gnu/packages/benchmark.scm (fio): Update to 2.17.

gnu: lftp: Update to 4.7.5.

* gnu/packages/ftp.scm (lftp): Update to 4.7.5.
[source]: Rearrange mirrors.

gnu: mumble: Update to 1.2.19.

* gnu/packages/telephony.scm (mumble): Update to 1.2.19.

gnu: xapian: Update to 1.4.3.

* gnu/packages/search.scm (xapian): Update to 1.4.3.

gnu: dtc: Update description to reference HOWTO.

* gnu/packages/u-boot.scm (dtc)[description]: Modify.