gnu: Add xfce4-taskmanager.

* gnu/packages/xfce.scm (xfce4-taskmanager): Add variable.

gnu: woff2: Fix build parallelism.

* gnu/packages/patches/woff2-libbrotli.patch: Add dependency of
executables on object files.

gnu: python2-pysnptools: Update to 0.3.9.

* gnu/packages/python.scm (python2-pysnptools): Update to 0.3.9.
[propagated-inputs]: Add python2-pytz. Move python2-pandas ...
[inputs]: ... to here. Add python2-dateutil-2, python2-six.

gnu: python-terminado: Update to 0.6.

* gnu/packages/python.scm (python-terminado): Update to 0.6.
[inputs]: Remove python-setuptools. Move python-nose ...
[native-inputs]: ... to here.
[properties]: Define python2-variant.
(python2-terminado): Build with 'strip-python2-variant'.
[native-inputs]: Add python2-setuptools.

gnu: python-singledispatch: Rearrange inputs.

* gnu/packages/python.scm (python-singledispatch)[propagated-inputs]:
Move python-six ...
[inputs]: ... to here.

gnu: python-tornado: Rearrange inputs.

* gnu/packages/python.scm (python-tornado)[properties]: Define
python2-variant.
[inputs]: Remove python-certifi, move python-backports-abc here from
native-inputs.
[native-inputs]: Remove python-setuptools.
(python2-tornado): Build with 'strip-python2-variant'.
[native-inputs]: Add python2-setuptools.

gnu: python-seaborn: Update to 0.7.0.

* gnu/packages/python.scm (python-seaborn): Update to 0.7.0.
[native-inputs]: Remove python-setuptools.
(python2-seaborn): Build with 'strip-python2-variant'.
[propagated-inputs]: Add python2-pytz.
[native-inputs]: Add python2-setuptools.

gnu: python-pandas: Rearrange inputs.

* gnu/packages/python.scm (python-pandas)[propagated-inputs]: Move
python-pytz, python-dateutil-2 ...
[inputs]: ... to here.

gnu: xfce: Add ristretto.

* gnu/packages/xfce.scm (xfce)[propagated-inputs]: Add ristretto.

gnu: Add ristretto.

* gnu/packages/xfce.scm (ristretto): Add variable.

gnu: ncmpcpp: Update to 0.7.4.

* gnu/packages/mpd.scm (ncmpcpp): Update to 0.7.4.

gnu: borg: Update to 1.0.2.

* gnu/packages/backup.scm (borg): Update to 1.0.2.

gnu: haunt: Update to 0.2.

* gnu/packages/guile.scm (haunt): Update to 0.2.
[native-inputs]: Add pkg-config and texinfo.
[propagated-inputs]: Add guile-reader.

gnu: guile-minikanren: Remove extra .scm on files.

* gnu/packages/guile.scm (guile-minikanren): Remove extra .scm appended
to files.

gnu: guix: Update development snapshot.

* gnu/packages/package-management.scm (guix-devel): Update to 80627f5.

gnu: openldap: Update to 2.4.44 [fixes CVE-2015-6908].

* gnu/packages/openldap.scm (openldap)[replacement]: New field.
(openldap-2.4.44): New variable.

gnu: python-feedgenerator: Update to 1.8.

* gnu/packages/python.scm (python-feedgenerator): Update to 1.8.
[arguments]: Remove configure flags.
[inputs]: Move python-setuptools, python-pytz, python-six ...
[native-inputs]: ... to here.
[home-page]: Update project's home-page.

gnu: pelican: Rearrange inputs.

* gnu/packages/python.scm (pelican)[native-inputs]: Remove
python-setuptools.
[propagated-inputs]: Move python-feedgenerator, python-jinja2,
python-pygments, python-docutils, python-pytz, python-blinker,
python-unidecode, python-six, python-dateutil-2 ...
[inputs]: ... to here.

gnu: python2-itsdangerous: Use 'strip-python2-variant'.

* gnu/packages/python.scm (python2-itsdangerous): Use
'strip-python2-variant'.
[native-inputs]: Add python2-setuptools.
(python-itsdangerous)[inputs]: Remove python-setuptools.
[properties]: Define python2-variant.

gnu: python2-oauthlib: Use python2-variant.

* gnu/packages/python.scm (python2-oauthlib): Use 'strip-python2-variant'.
[native-inputs]: Add python2-setuptools.
(python-oauthlib)[inputs]: Remove python-setuptools.
[properties]: Define python2-variant for python2-oauthlib.