gnu: Add perl-zip.

* gnu/packages/zip.scm (perl-zip): New variable.

gnu: openssh: Update to 6.7p1.

* gnu/packages/ssh.scm (openssh): Update to 6.7p1.

Add copyright line to gnuzilla.scm.

* gnu/packages/gnuzilla.scm: Add copyright line for Mark H Weaver, which
  should have been added in 74c7af9 (gnu: icecat: Update to 31.1.1).

gnu: icu4c: Correct error in the binaries' runpath

* gnu/packages/icu4c.scm (icu4c): Apply the RUNPATH to the binaries,
  instead of the libs

gnu: icecat: Update to 31.1.1.

* gnu/packages/gnuzilla.scm (icecat): Update to 31.1.1.  Add 'pango',
  'freetype', 'libxft' and 'pulseaudio' as inputs.  Set
  'out-of-source?' to #t.  Remove 'sanitise' phase.  Adapt customized
  'configure' phase to handle 'out-of-source?' build.  Add
  '--with-l10n-base' argument to configure.

gnu: cmake: Use our curl, zlib, expat, bzip2, and libarchive.

* gnu/packages/cmake.scm (cmake)[arguments]: Move sh-patching to new
  'patch-bin-sh phase.  New 'set-paths phase.
  [inputs]: Add curl, zlib, expat, bzip2, and libarchive.
  [description]: Fix space after end-of-sentence.

gnu: slim: Fix typo in synopsis and wrap description.

* gnu/packages/slim.scm (slim)[synopsis]: Fix typo.
  [description]: Fix two-space-after-end-of-sentence.  Wrap to 80
  characters.

gnu: conkeror: install conkeror-spawn-helper.

* gnu/packages/conkeror.scm (conkeror)[build-system]: Change to
  gnu-build-system.  Adjust arguments accordingly.
  [inputs]: Remove now-implicit bash.
  [native-inputs]: Remove now-implicit tar and gzip.
  [description]: Fix two-space-after-end-of-sentence.  Remove comment
  about separate conkeror-spawn-process-helper package.

gnu: Add fontforge.

* gnu/packages/fontutils.scm (fontforge): New variable.

gnu: Add libuninameslist.

* gnu/packages/fontutils.scm (libuninameslist): New variable.

gnu: Add libspiro.

* gnu/packages/fontutils.scm (libspiro): New variable.

gnu: Add potrace.

* gnu/packages/fontutils.scm (potrace): New variable.

services: Add '%facebook-host-aliases'.

* gnu/services/networking.scm (%facebook-host-aliases): New variable.
* doc/guix.texi (Networking Services): Document it.

system: Export 'local-host-aliases'.

* gnu/system.scm (local-host-aliases): New procedure.
  (default-/etc/hosts): Use it.

gnu: boost: Add zlib to the inputs.

* gnu/packages/boost.scm (boost): Add zlib to inputs.

gnu: eudev: Really update to 1.10.

* gnu/packages/linux.scm (eudev)[version]: Fix typo.
  [source]: Add 'snippet'.

gnu: mupdf: Update to 1.6.

* gnu/packages/pdf.scm (mupdf): Update to 1.6.

gnu: mupdf: Use a source URL where older versions remain available.

* gnu/packages/pdf.scm (mupdf)[source]: Download from the archive
  subdirectory, where both old and new versions are kept.

gnu: eudev: Update to 1.10.

* gnu/packages/linux.scm (eudev): Update to version 1.10.

gnu: clucene: Enable the contrib-libs.

* gnu/packages/rdf.scm (clucene): Enable the contribs-lib directory.