gnu: diamond: Restrict supported systems to x86_64-linux.

* gnu/packages/bioinformatics.scm (diamond) [supported-systems]: Restrict to
  x86_64-linux.

gnu: abbaye: Use 'sdl-union'.

* gnu/packages/games.scm (abbaye)[inputs]: Use 'sdl-union'.
  [arguments]: Adjust 'set-sdl-paths' phase accordingly.

gnu: icecat: Update to 38.3.0-gnu1.

* gnu/packages/patches/icecat-CVE-2015-4473-partial.patch,
  gnu/packages/patches/icecat-CVE-2015-4482.patch,
  gnu/packages/patches/icecat-CVE-2015-4488.patch,
  gnu/packages/patches/icecat-CVE-2015-4489.patch,
  gnu/packages/patches/icecat-CVE-2015-4491.patch,
  gnu/packages/patches/icecat-CVE-2015-4492.patch,
  gnu/packages/patches/icecat-CVE-2015-4495.patch,
  gnu/packages/patches/icecat-enable-acceleration-and-webgl.patch,
  gnu/packages/patches/icecat-libvpx-1.4.patch: Delete files.
* gnu/packages/patches/icecat-avoid-bundled-includes.patch: New file.
* gnu-system.am (dist_patch_DATA): Add new patch.  Remove the deleted ones.
* gnu/packages/gnuzilla.scm (icecat): Update to 38.3.0-gnu1.
  [source]: Add new patch.  Remove the deleted ones.
  [inputs]: Add libxcomposite.
  [arguments]: Add 'ensure-no-mtimes-pre-1980' phase.  Adapt
  'remove-h264parse-from-blacklist' and
  'arrange-to-link-libxul-with-libraries-it-might-dlopen' phases to the
  new version.

gnu: geiser: Update to 0.8.1.

* gnu/packages/emacs.scm (geiser): Update to 0.8.1.

gnu: python-rpy2: Add "zlib" to native-inputs.

* gnu/packages/python.scm (python-rpy2)[native-inputs]: Add "zlib".

gnu: python-scipy, python2-scipy: Update to 0.16.0.

* gnu/packages/python.scm (python-scipy, python2-scipy): Update to
  0.16.0.

gnu: python-scipy, python2-scipy: Propagate Python inputs.

* gnu/packages/python.scm (python-scipy)[inputs]: Move "python-numpy",
  "python-matplotlib", and "python-pyparsing" to propagated-inputs; move
  "python-nose" and "python-sphinx" to native-inputs.
  [propagated-inputs]: New field.
  [native-inputs]: Move "python-nose" and "python-sphinx" from inputs
  field here.
  (python2-scipy): Modify propagated-inputs instead of inputs field.

gnu: icedtea6: Update to 1.13.8.

* gnu/packages/java.scm (icedtea6): Update to 1.13.8.

gnu: icedtea6: Replace "ant-bootstrap" with "ant".

* gnu/packages/java.scm (icedtea6)[native-inputs]: Replace
  "ant-bootstrap" with "ant".
  [arguments]: Remove steps to unpack and use "ant-bootstrap".
  (icedtea7)[native-inputs]: Remove explicit references to
  "ant-bootstrap" and "ant".

gnu: ant: Build with GCJ.

* gnu/packages/java.scm (ant)[native-inputs]: Replace "icedtea6" with
  "gcj".

gnu: gcj-4.8, gcj: Update to default GCC version.

* gnu/packages/gcc.scm (gcj-4.8): Inherit from "gcc" package and rename
  variable to...
  (gcj): ...this new variable.
  (ecj-bootstrap-4.8): Rename variable to...
  (ecj-bootstrap): ...this, updating to version 4.9.
* gnu/packages/java.scm (icedtea6)[native-inputs]: Replace "gcj-4.8"
  with "gcj".
* gnu/packages/music.scm (tuxguitar)[native-inputs]: Likewise.

gnu: abbaye: Use 'modify-phases'.

* gnu/packages/games.scm (abbaye)[arguments]: Use 'modify-phases'.

gnu: Add manaplus.

* gnu/packages/games.scm (manaplus): New variable.

gnu: geiser: Update to 0.8.

* gnu/packages/emacs.scm (geiser): Update to 0.8.

Merge branch 'core-updates'

gnu: lilypond: Hardcode path to "gs" executable.

* gnu/packages/music.scm (lilypond)[arguments]: Add build phase
  "hardcode-path-to-gs".

gnu: Add python-traitlets.

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

gnu: Add python-ipython-genutils.

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

gnu: Add python-simplegeneric.

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

gnu: Add python-pickleshare.

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