Merge branch 'master' into core-updates

Conflicts:
	gnu/packages/commencement.scm
	gnu/packages/xml.scm

gnu: python: Disable ssl test that fails with openssl-1.0.2b.

* gnu/packages/patches/python-disable-ssl-test.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/python.scm (python): Add patch.

Merge branch 'master' into core-updates

gnu: python-numpy: Build against OpenBLAS.

* gnu/packages/python.scm (python-numpy)[inputs]: Use "openblas" instead of
  "atlas".
* gnu/packages/python.scm (python-numpy)[arguments]: Configure build against
  OpenBLAS.

Modified-By: Mark H Weaver <mhw@netris.org>

python-pillow: Update to 2.8.1, remove duplicated ones.

* gnu/packages/python.scm (python-pillow): Update to 2.8.1.
  [inputs]: Add freetype and libwebp.
  (python-pillow, python2-pillow): Remove duplicated variables.

Merge branch 'master' into gtk-rebuild

gnu: dbus-glib: Propagate inputs dbus and glib.

* gnu/packages/glib.scm (dbus-glib): Propagate inputs dbus and glib.
* gnu/packages/audio.scm (patchage),
  gnu/packages/gnuzilla.scm (icecat),
  gnu/packages/python.scm (python-dbus): Drop inputs dbus and glib.
* gnu/packages/gnome.scm (colord, gconf, gnome-vfs, upower),
  gnu/packages/mail.scm (claws-mail),
  gnu/packages/messaging.scm (hexchat),
  gnu/packages/wicd.scm (wicd): Drop input dbus.

Merge branch 'master' into gtk-rebuild

Conflicts:
	gnu/packages/gtk.scm

gnu: Add python-rq.

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

gnu: Add python-redis.

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

gnu: Add python-click.

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

gnu: Add python-pyzmq.

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

gnu: Add python-seaborn.

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

gnu: Add python-pandas.

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

gnu: Add python-scikit-image.

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

gnu: scons: Update to 2.3.4.

* gnu/packages/python.scm (scons): Update to 2.3.4.

gnu: Add python-sympy.

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

Merge branch 'master' into core-updates

gnu: Add python-tornado.

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

gnu: Add python2-backport-ssl-match-hostname.

* gnu/packages/python.scm (python2-backport-ssl-match-hostname): New variable.