gnu: gnuplot: Update to 5.0.1.

* gnu/packages/maths.scm (gnuplot): Update to 5.0.1.
  (native-inputs): 'texlive' -> 'texlive-bin'.

gnu: slepc: Update to 3.6.2.

* gnu/packages/maths.scm (slepc): Update to 3.6.2.
  [arguments]: Append "/lib" to arpack configure flag.  Use 'inputs'
  rather than '%build-inputs' in 'configure phase.

gnu: petsc: Update to 3.6.2.

* gnu/packages/maths.scm (petsc): Update to 3.6.2.

gnu: mumps: Update to 5.0.1.

* gnu/packages/maths.scm (mumps): Update to 5.0.1.

gnu: Adjust formatting as recommended by 'guix lint'.

* gnu/packages/aidc.scm (barcode, qrencode),
  gnu/packages/bash.scm (bash, bash-completion),
  gnu/packages/busybox.scm (busybox),
  gnu/packages/cdrom.scm (cdparanoia),
  gnu/packages/cmake.scm (cmake),
  gnu/packages/conkeror.scm (conkeror),
  gnu/packages/cook.scm (cook),
  gnu/packages/curl.scm (curl),
  gnu/packages/docbook.scm (docbook-xsl),
  gnu/packages/enlightenment.scm (enlightenment),
  gnu/packages/games.scm (abbaye),
  gnu/packages/geeqie.scm (exiv2),
  gnu/packages/gimp.scm (gegl),
  gnu/packages/gl.scm (glu, freeglut, ftgl),
  gnu/packages/glib.scm (glib),
  gnu/packages/gnome.scm (orbit2, gconf, geocode-glib),
  gnu/packages/gstreamer.scm (gstreamer, gst-plugins-base),
  gnu/packages/linux.scm (util-linux),
  gnu/packages/lisp.scm (gcl, ecl),
  gnu/packages/maths.scm (gnuplot, hdf5),
  gnu/packages/ssh.scm (dropbear),
  gnu/packages/web.scm (json-c): Remove tabulations and trailing
  white spaces or reformat to fit within 80 columns.
* gnu/packages/audio.scm (aubio),
  gnu/packages/emacs.scm (emacs-s),
  gnu/packages/engineering.scm (geda-gaf),
  gnu/packages/games.scm (dosbox),
  gnu/packages/gnome.scm (gusb),
  gnu/packages/gtk.scm (gtk+),
  gnu/packages/guile.scm (guile-wisp),
  gnu/packages/hurd.scm (hurd-headers),
  gnu/packages/wm.scm (i3-wm): Adjust synopsis or description.

gnu: gsl: Update to 2.1.

* gnu/packages/maths.scm (gsl): Update to 2.1.

gnu: pspp: Use gtksourceview-2.

* gnu/packages/maths.scm (pspp)[inputs]: Use gtksourceview-2.

gnu: Add wcalc.

* gnu/packages/maths.scm (wcalc): New variable.

gnu: octave: Upgrade to 4.0.0.

* gnu/packages/maths.scm (octave): Update to 4.0.0.

gnu: glpk: Update to 4.57.

* gnu/packages/maths.scm (glpk): Update to 4.57.

gnu: gsl: Enable tests.

* gnu/packages/maths.scm (gsl)[arguments]: Enable tests for i686-linux.

gnu: gsl: Update to 2.0.

* gnu/packages/maths.scm (gsl): Update to 2.0.
  [source]: Remove patches.
* gnu/packages/patches/gsl-poly-test-fix-pt1.patch,
  gnu/packages/patches/gsl-poly-test-fix-pt2.patch: Remove files.
* gnu-system.am (dist_patch_DATA): Remove patches.

gnu: openblas: Make substitutable on MIPS.

* gnu/packages/maths.scm (openblas)[arguments]: Make package
  substitutable when the system is MIPS.

gnu: openblas: Set TARGET to SICORTEX on MIPS.

* gnu/packages/maths.scm (openblas)[arguments]: Add "TARGET=SICORTEX" to
  make-flags when building for MIPS.

Merge branch 'master' into dbus-update

gnu: openblas: Update to 0.2.15.

* gnu/packages/maths.scm (openblas): Update to 0.2.15.

Merge branch 'master' into dbus-update

gnu: units: Update to 2.12.

* gnu/packages/maths.scm (units): Update to 2.12.

Merge branch 'master' into core-updates

gnu: glpk: Update to 4.56.

* gnu/packages/maths.scm (glpk): Update to 4.56.