gnu: freeipmi: Update to 1.5.5.

* gnu/packages/freeipmi.scm (freeipmi): Update to 1.5.5.

gnu: python-gst: Update to 1.10.0.

* gnu/packages/gstreamer.scm (python-gst): Update to 1.10.0.

gnu: gst-libav: Update to 1.10.0.

* gnu/packages/gstreamer.scm (gst-libav): Update to 1.10.0.

gnu: gst-plugins-ugly: Update to 1.10.0.

* gnu/packages/gstreamer.scm (gst-plugins-ugly): Update to 1.10.0.

gnu: gst-plugins-good: Update to 1.10.0.

* gnu/packages/gstreamer.scm (gst-plugins-good): Update to 1.10.0.

gnu: gst-plugins-base: Update to 1.10.0.

* gnu/packages/gstreamer.scm (gst-plugins-base): Update to 1.10.0.

gnu: gstreamer: Update to 1.10.0.

* gnu/packages/gstreamer.scm (gstreamer): Update to 1.10.0.

gnu: Add mps-youtube.

* gnu/packages/video.scm (mps-youtube): New variable.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: Add python-pafy.

* gnu/packages/python.scm (python-pafy): New variable.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: libidn: Distinguish from libidn2.

* gnu/packages/libidn.scm (libidn)[description]: Add detail to help distinguish
from libidn2.

gnu: Add libidn2.

* gnu/packages/libidn.scm (libidn2): New variable.

gnu: w3m: Switch to Debian's actively maintained fork of w3m.

Fixes some security issues seen here:
<http://www.openwall.com/lists/oss-security/2016/11/03/3>

* gnu/packages/w3m.scm (w3m): Switch it.
[source]: Use Debian's git tree. Remove obsolete patches.
[arguments]: Remove an unneeded substitute* function.
* gnu/packages/patches/w3m-disable-sslv2-and-sslv3.patch,
gnu/packages/patches/w3m-disable-weak-ciphers.patch,
gnu/packages/patches/w3m-force-ssl_verify_server-on.patch,
gnu/packages/patches/w3m-libgc.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu: webkitgtk: Update to 2.14.2.

* gnu/packages/webkit.scm (webkitgtk): Update to 2.14.1.

gnu: Add jupyter.

* gnu/packages/python.scm (jupyter): New variable.

gnu: python-ipython: Update to 4.0.0.

* gnu/packages/python.scm (python-ipython): Update to 4.0.0.
[inputs]: Keep only "readline" and "which"; move the remaining inputs
to propagated-inputs, except for "python-requests" and "python-nose"
which are moved to native-inputs.
[propagated-inputs]: Add "python-pexpect", "python-pickleshare",
"python-simplegeneric", "python-traitlets", "python-ipykernel".
[native-inputs]: Add "python-testpath".
[arguments]: Enable building of HTML documentation.
[source]: Remove patch.
* gnu/packages/patches/python-ipython-inputhook-ctype.patch: Remove
patch.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: Add python-jupyter-console.

* gnu/packages/python.scm (python-jupyter-console,
python2-jupyter-console): New variable.

gnu: Add python-ipywidgets.

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

gnu: Add python-widgetsnbextension.

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

gnu: Add python-notebook.

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

gnu: Add python-nbconvert.

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