gnu: Add r-diffusionmap.

* gnu/packages/graph.scm (r-diffusionmap): New variable.

gnu: Add r-ggjoy.

* gnu/packages/cran.scm (r-ggjoy): New variable.

gnu: Add r-ggridges.

* gnu/packages/cran.scm (r-ggridges): New variable.

gnu: Add r-scatterplot3d.

* gnu/packages/cran.scm (r-scatterplot3d): New variable.

gnu: Add r-sdmtools.

* gnu/packages/cran.scm (r-sdmtools): New variable.

gnu: Add r-dtw.

* gnu/packages/cran.scm (r-dtw): New variable.

gnu: Add r-ica.

* gnu/packages/cran.scm (r-ica): New variable.

gnu: r-seurat: Fix ModularityOptimizer.jar.

* gnu/packages/bioinformatics.scm (r-seurat)[arguments]: Include Main-Class
attribute in manifest.

gnu: qmidiarp: Update to 0.6.5.

* gnu/packages/music.scm (qmidiarp): Update to 0.6.5.

gnu: Add noise-repellent.

* gnu/packages/audio.scm (noise-repellent): New variable.

gnu: Add aj-snapshot.

* gnu/packages/music.scm (aj-snapshot): New variable.

gnu: Add jack-capture.

* gnu/packages/music.scm (jack-capture): New variable.

gnu: Add qjackrcd.

* gnu/packages/audio.scm (qjackrcd): New variable.

gnu: Add whysynth.

* gnu/packages/music.scm (whysynth): New variable.

gnu: Add sonivox-eas.

* gnu/packages/music.scm (sonivox-eas): New variable.

doc: Fix typo.

* doc/guix.texi: remove double occurence of generations.

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

nls: Update 'hu' translation.

vm: Pass the host's /dev/urandom to the guest at /dev/hwrng.

* gnu/build/vm.scm (load-in-linux-vm): Use QEMU's virtio-rng-pci.
* gnu/system/vm.scm (common-qemu-options): Likewise.

gnu: openssl: Update replacement to 1.0.2n [fixes CVE-2017-{3737,3738}].

* gnu/packages/tls.scm (openssl)[replacement]: Use openssl-1.0.2n.
(openssl-1.0.2m): Replace with ...
(openssl-1.0.2n): ... this updated version.  Update comment.

gnu: Add mod-wsgi.

* gnu/packages/web.scm (mod-wsgi): New variable.