gnu: Add nvi.

* gnu/packages/nvi.scm: New file.
* gnu/packages/patches/nvi-assume-preserve-path.patch: New file.
* gnu-system.am: Add them.

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

gnu: ucommon: Update to 6.1.10.

* gnu/packages/telephony.scm (ucommon): Update to 6.1.10.

gnu: libtasn1: Update to 4.1.

* gnu/packages/gnutls.scm (libtasn1): Update to 4.1.

gnu: datamash: Update to 1.0.6.

* gnu/packages/datamash.scm (datamash): Update to 1.0.6.

gnu: parallel: Update to 20140822.

* gnu/packages/parallel.scm (parallel): Update to 20140822.

gnu: help2man: Update to 1.46.1.

* gnu/packages/man.scm (help2man): Update to 1.46.1.

gnu: gcc-toolchain: Inherit GCC's search path specifications.

Reported by Federico Beffa <beffa@ieee.org>.

* gnu/packages/commencement.scm (gcc-toolchain): Add
  'native-search-paths' and 'search-paths' fields.

gnu: Add nss-mdns.

* gnu/packages/avahi.scm (nss-mdns): New variable.

gnu: Add perl-archive-zip.

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

gnu: Add bison-2.7

* gnu/packages/bison.scm (bison-2.7): New variable.
  Bison 3.x and 2.x are incompatible.  Some programs require 2.x

gnu: libwebsockets: Update to 1.3.

* gnu/packages/web.scm (libwebsockets): Update to 1.3.  Switch to
  CMAKE-BUILD-SYSTEM.  Remove #:phases parameter and add #:tests?.
  Remove AUTOCONF, AUTOMAKE, and LIBTOOL from 'native-inputs'.

gnu: Add Guile-Charting.

* gnu/packages/guile.scm (guile-charting): New variable.

gnu: guile-cairo: Propagate Cairo.

* gnu/packages/gtk.scm (guile-cairo): Move CAIRO to 'propagated-inputs'.

gnu: Split (gnu packages base), adding (gnu packages commencement).

* gnu/packages/base.scm (gnu-make-boot0, diffutils-boot0,
  findutils-boot0, %boot0-inputs, nix-system->gnu-triplet, boot-triplet,
  binutils-boot0, gcc-boot0, perl-boot0, linux-libre-headers-boot0,
  texinfo-boot0, %boot1-inputs, glibc-final-with-bootstrap-bash,
  cross-gcc-wrapper, static-bash-for-glibc, glibc-final,
  gcc-boot0-wrapped, %boot2-inputs, binutils-final, libstdc++,
  gcc-final, ld-wrapper-boot3, %boot3-inputs, bash-final, %boot4-inputs,
  guile-final, gnu-make-final, ld-wrapper, coreutils-final, grep-final,
  %boot5-inputs, %final-inputs, canonical-package, gcc-toolchain,
  gcc-toolchain-4.8, gcc-toolchain-4.9): Move to...
* gnu/packages/commencement.scm: ... here.  New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* build-aux/check-final-inputs-self-contained.scm: Adjust accordingly.
* gnu/packages/cross-base.scm: Likewise.
* gnu/packages/make-bootstrap.scm: Likewise.
* guix/build-system/cmake.scm (cmake-build): Likewise.
* guix/build-system/gnu.scm (standard-packages, gnu-build,
  gnu-cross-build): Likewise.
* guix/build-system/perl.scm (perl-build): Likewise.
* guix/build-system/python.scm (python-build): Likewise.
* guix/build-system/trivial.scm (guile-for-build): Likewise.
* guix/download.scm (url-fetch): Likewise.
* guix/gexp.scm (default-guile): Likewise.
* guix/git-download.scm (git-fetch): Likewise.
* guix/monads.scm (run-with-store): Likewise.
* guix/packages.scm (default-guile): Likewise.
* guix/scripts/package.scm (guix-package): Likewise.
* guix/scripts/refresh.scm: Likewise.
* guix/svn-download.scm (svn-fetch): Likewise.
* tests/builders.scm (%bootstrap-inputs, %bootstrap-search-paths):
  Likewise.
* tests/packages.scm ("GNU Make, bootstrap"): Likewise.
* tests/guix-package.sh: Likewise.
* gnu/services/base.scm: Use 'canonical-package' instead of xxx-final.
* gnu/services/xorg.scm: Likewise.
* gnu/system/vm.scm: Likewise.
* guix/scripts/pull.scm (guix-pull): Likewise.

gnu: Add unclutter.

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

gnu: libgcrypt: Update to 1.6.2.

* gnu/packages/gnupg.scm (libgcrypt): Update to 1.6.2.

gnu: libgc-7.2: Update to 7.2f.

* gnu/packages/bdw-gc.scm (libgc-7.2): Update to 7.2f.

gnu: libgcrypt-1.5: Update to 1.5.4.

* gnu/packages/gnupg.scm (libgcrypt-1.5): Update to 1.5.4.

gnu: ffmpeg: Update to 2.3.3.

* gnu/packages/video.scm (ffmpeg): Update to version 2.3.3.

Move 'check-package-freshness' from 'guix package' to 'packages'.

* guix/scripts/package.scm (%sigint-prompt, call-with-sigint-handler)
  (waiting, ftp-open*, check-package-freshness): Move to...
* gnu/packages.scm: ... here.

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