* doc/guix.texi (Networking Services): Fix typo in 'lsh-service'
  parameters.

* guix/scripts/lint.scm (%options) <--checkers>: Remove 'arg-handler'
  parameter, and return a single value.
  (guix-lint)[parse-options]: Remove 'arg-handler' parameter from
  handlers.  Remove second seed to 'args-fold*'.
* tests/guix-lint.sh: Add test.

* gnu/packages/gimp.scm (gimp): Update to 2.8.14.

* gnu/system.scm (etc-directory)[profile]: Define 'ASPELL_CONF'.

* doc/guix.texi (System Installation): Change to --image-size=850MiB.

* gnu/system/install.scm (installation-os)[packages]: Add IW.

* gnu/packages/linux.scm (linux-libre): Update to version 3.18.4.

* gnu/packages/xorg.scm (xinit): New variable.

* doc/guix.texi (System Installation): Change the file name to
  'gsd-usb-install-*'.

* gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add
  usb-storage, uas, usbkbd, and usbhid.
* gnu/system/vm.scm (system-disk-image): Remove #:extra-modules argument
  to 'base-initrd'.

* gnu/packages/apr.scm (apr-util): Correct hash.

* gnu/packages/sxiv.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

* gnu/packages/gcc.scm (gcj-4.8, ecj-bootstrap-4.8): New variables.
* gnu/packages/javac.in: New file.
* gnu-system.am (MISC_DISTRO_FILES): Add it.
* Makefile.am (nobase_dist_guilemodule_DATA): Add MISC_DISTRO_FILES.

* gnu/packages/rdf.scm (lrdf): New variable.

* gnu/packages/audio.scm: New file
* gnu-system.am (GNU_SYSTEM_MODULES): Add it

* doc/guix.texi (System Installation): Mention Xfce.  Update package
  count.

* gnu/system/install.scm (installation-services): Mention the Guix
  System Distribution.

* gnu/packages/package-management.scm (boot-guile-uri): New procedure.
  (guix-0.8): Add "boot-guile/armhf" input.  Update
  'copy-bootstrap-guile' phase to handle it.
  (guix-devel): Update snapshot.

* gnu/packages/zsh.scm (zsh): Update to 5.0.7

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/apr.scm (apr-util): Update to 1.5.4

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/ftp.scm (lftp): Update to 4.6.1

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/services/base.scm (mingetty-service): Add 'udev' to
  'requirement'.

* gnu/system.scm (etc-directory)[profile]: Set 'XDG_DATA_DIRS' and
  'XDG_CONFIG_DIRS'.

* po/packages/POTFILES.in: List a few more files.

* Makefile.am (sync-descriptions): Clear 'GUIX_PACKAGE_PATH'.

* daemon.am (EXTRA_DIST): Remove nix/sync-with-upstream.

* doc/guix.texi (Invoking guix lint): Give examples of checkers.

* gnu/services/xorg.scm (<session-type>): New record type.
  (%windowmaker-session-type, %ratpoison-session-type): New variables.
  (%default-xsessions): Use them.
  (xsessions-directory): Expect SESSIONS to be a list of <session-type>
  and rewrite accordingly.
  (slim-service): Adjust docstring.
* doc/guix.texi (X Window): Update accordingly.

* guix/scripts/substitute-binary.scm (open-cache*): New macro.
  (guix-substitute-binary): Use it instead of (delay (open-cache ...)).

Fixes <http://bugs.gnu.org/19677>.
Reported by Mark H Weaver <mhw@netris.org>.

* guix/hash.scm: Use (guix gcrypt).
  (sha256, open-sha256-md, md-write, md-close): Use 'libgcrypt-func'
  instead of 'dynamic-func'.

* guix/gcrypt.scm: New file.
* Makefile.am (MODULES): Add it.
* guix/pk-crypto.scm: Use it.
  (libgcrypt-func, gcrypt-version): Remove.

* gnu-system.am (dist_patch_DATA): Add
  'gobject-introspection-absolute-shlib-path.patch' and
  'gobject-introspection-girepository.patch'.

Before that it would check all the URIs of each package.

* guix/scripts/lint.scm (validate-uri): Really return #f on failure and
  #t otherwise.
  (check-source): Replace 'for-each' with 'any'.

* gnu/services/dbus.scm (dbus-configuration-directory)[services->sxml]:
  Produce a <servicedir> tag.

* gnu/packages.scm (search-bootstrap-binary): Raise an error when
  FILE-NAME is not found.

This reverts commit 03c27765.

This reverts commit a6ae52fe.