gnu: Add cmatrix.

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

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

gnu: Add node.

* gnu-system.am (GNU_SYSTEM_MODULES): Add new package.
* gnu/packages/node.scm: New file.

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

services: Add lshd service.

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

linux-initrd: Rename 'qemu-initrd' to 'base-initrd'.

* gnu/system/linux-initrd.scm (qemu-initrd): Rename to...
  (base-initrd): ... this.
* gnu/system.scm (<operating-system>)[initrd]: Update accordingly.
* gnu/system/vm.scm (expression->derivation-in-linux-vm,
  system-disk-image, virtualized-operating-system): Likewise.

linux-initrd: Disable QEMU networking by default.

* gnu/system/linux-initrd.scm (qemu-initrd): Remove default value for
  #:qemu-networking?.
* gnu/system/vm.scm (expression->derivation-in-linux-vm): Pass
  #:qemu-networking? #t.
  (system-disk-image): Remove #:qemu-networking? #f.
  (virtualized-operating-system): Pass #:qemu-networking? #t.

linux-initrd: Make the virtio kernel modules optional.

* gnu/system/linux-initrd.scm (qemu-initrd): Add #:virtio? parameter.
  Use it.
* gnu/system/vm.scm (expression->derivation-in-linux-vm): Pass
  'qemu-initrd' #:virtio?.
  (virtualized-operating-system): Likewise.

gnu: Add jrnl, python-pycrypto, python-keyring, python-parsedatetime, and python-tzlocal.

* gnu/packages/jrnl.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/python.scm (python-pycrypto, python-keyring,
  python-dateutil-2, python-parsedatetime, python-tzlocal): New
  variables.

guix: Add CC0 license.

* guix/licenses.scm (cc0): New variable.

gnu: Add behave, python-six, python-enum34, python-parse-type, and python-parse.

* gnu/packages/python.scm (python-six, python-enum34, python-parse-type,
  python-parse, behave): New variables.

gnu: Add goffice and gnumeric

gnu/packages/gnome.scm (goffice, gnumeric): New variables.

guix-register: Add explicit libgcrypt initialization.

* nix/guix-register/guix-register.cc (main): Add calls to
  'gcry_check_version' and 'gcry_control', to appease libgcrypt.

Add Cyrill to AUTHORS.

gnu: Add ncmpcpp.

* gnu/packages/mpd.scm (ncmpcpp): New variable.

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

services: udev: Make sure modules are found, and use "udevadm settle".

* gnu/services/base.scm (udev-service): Set $LINUX_MODULE_DIRECTORY.  In
  the parent, invoke "udevadm settle" before "udevadm trigger".

system: Set $LINUX_MODULE_DIRECTORY as a function or /run/booted-system.

* gnu/system.scm (etc-directory): Remove #:kernel parameter.  Set
  LINUX_MODULE_DIRECTORY as a function or /run/booted-system.
  (operating-system-etc-directory): Update accordingly.

doc: Improve wording and example in "Using the Configuration System".

* doc/guix.texi (Using the Configuration System): Make the intro more
  user-oriented.  Change example to return an operating system.  Fix
  typos.  Mention mandatory/optional fields.

gnu: guix: Use the development version by default.

* gnu/packages/package-management.scm (guix): Rename to...
  (guix-0.6): ... this.
  (guix-devel): Rename to...
  (guix): ... this.  Replace references to 'guix' by references to
  'guix-0.6'.

gnu: guix: Add development version.

* gnu/packages/package-management.scm (guix-devel): New variable.

git-download: Support recursive clones.

* guix/git-download.scm (<git-reference>)[recursive?]: New field.
  (git-fetch): Add 'inputs' variable.  Add it to the #:inputs argument
  of 'build-expression->derivation'.  Augment builder with call to
  'set-path-environment-variable', and pass #:recursive? to
  'git-fetch'.
* guix/build/git.scm (git-fetch): Add #:recursive? parameter.  Pass
  --recursive when RECURSIVE? is true, and delete all the '.git' files.

gnu: Adjust for (gnu packages image) merger.

* gnu/packages/aidc.scm: Use (gnu packages image).