gnu: mit-scheme: Update to 9.2.

* gnu/packages/scheme.scm (mit-scheme): Update to 9.2.

gnu: libxscrnsaver: Propagate input scrnsaverproto.

* gnu/packages/xorg.scm (libxscrnsaver): Propagate input scrnsaverproto,
    since scrnsaver.h from libxscrnsaver includes saver.h from scrnsaverproto.

gnu: help2man: Update to 1.46.3.

* gnu/packages/man.scm (help2man): Update to 1.46.3.

gnu: gcl: Update to 2.6.11.

* gnu/packages/lisp.scm (gcl): Update to 2.6.11.

gnu: parallel: Update to 20140922.

* gnu/packages/parallel.scm (parallel): Update to 20140922.

gnu: libidn: Update to 1.29.

* gnu/packages/libidn.scm (libidn): Update to 1.29.

gnu: rcs: Update to 5.9.3.

* gnu/packages/version-control.scm (rcs): Update to 5.9.3.

gnu: maxima: Install .el files in the right place, and help find Gnuplot.

* gnu/packages/maths.scm (maxima): Remove Tcl from 'inputs'.  Add
  'post-install' phase.

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

gnu: ucommon: Update to 6.1.11.

* gnu/packages/telephony.scm (ucommon): Update to 6.1.11.

gnu: libassuan: Update to 2.1.2.

* gnu/packages/gnupg.scm (libassuan): Update to 2.1.2.

Merge branch 'bash-cve-2014-6271'

gnu: Add scrot.

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

gnu: Add giblib.

* gnu/packages/image.scm (giblib): New variable.

gnu: Add imlib2.

* gnu/packages/image.scm (imlib2): New variable.

gnu: libtoxcore: Update to 1.0.0.

* gnu/packages/crypto.scm (libsodium): Update version and change home-page.

gnu: bash: Apply patch series up to 25 [CVE-2014-6271].

* gnu/packages/bash.scm (patch-url, bash-patch): New procedures.
  (patch-series): New macro.
  (%patch-series-4.3): New variable.
  (download-patches): New procedure.
  (bash): Change version to include the patch level; pass
  %PATCH-SERIES-4.3 in the origin.

gnu: bootstrap: Correctly handle patches that are origins.

* gnu/packages/bootstrap.scm (bootstrap-origin): Rewrite the patches of
  SOURCES that are also origins.

gnu: maxima: Update to 5.34.1 and add dependencies.

* gnu/packages/maths.scm (maxima): Update to 5.34.1 which fixes a bug in
  the plotting capabilities present in the previous version.  Add Gnuplot
  and Tcl/Tk to 'inputs'.

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

Use #:prefix instead of #:renamer with 'symbol-prefix-proc'.

* gnu/packages/abiword.scm, gnu/packages/admin.scm, gnu/packages/aidc.scm,
  gnu/packages/backup.scm, gnu/packages/bittorrent.scm,
  gnu/packages/boost.scm, gnu/packages/compression.scm,
  gnu/packages/cryptsetup.scm, gnu/packages/curl.scm,
  gnu/packages/cyrus-sasl.scm, gnu/packages/dc.scm, gnu/packages/emacs.scm,
  gnu/packages/fonts.scm, gnu/packages/fontutils.scm, gnu/packages/geeqie.scm,
  gnu/packages/ghostscript.scm, gnu/packages/gimp.scm,
  gnu/packages/gkrellm.scm, gnu/packages/gl.scm, gnu/packages/glib.scm,
  gnu/packages/gnome.scm, gnu/packages/gnunet.scm, gnu/packages/gnupg.scm,
  gnu/packages/gnutls.scm, gnu/packages/gnuzilla.scm, gnu/packages/gsasl.scm,
  gnu/packages/gtk.scm, gnu/packages/gv.scm, gnu/packages/image.scm,
  gnu/packages/indent.scm, gnu/packages/inkscape.scm,
  gnu/packages/lesstif.scm, gnu/packages/links.scm, gnu/packages/lisp.scm,
  gnu/packages/lsh.scm, gnu/packages/lsof.scm, gnu/packages/maths.scm,
  gnu/packages/mp3.scm, gnu/packages/openssl.scm, gnu/packages/ots.scm,
  gnu/packages/pciutils.scm, gnu/packages/pcre.scm, gnu/packages/pdf.scm,
  gnu/packages/pulseaudio.scm, gnu/packages/python.scm, gnu/packages/slim.scm,
  gnu/packages/ssh.scm, gnu/packages/texlive.scm, gnu/packages/vim.scm,
  gnu/packages/vpn.scm, gnu/packages/web.scm, gnu/packages/wv.scm,
  gnu/packages/xiph.scm, gnu/packages/xml.scm, gnu/packages/xorg.scm,
  gnu/packages/yasm.scm, gnu/packages/zip.scm,
  guix/build/cmake-build-system.scm, guix/build/perl-build-system.scm,
  guix/build/python-build-system.scm, guix/download.scm: Replaces uses of
  #:renamer and 'symbol-prefix-proc' with #:prefix.

gnu: gtk+: Disable tests on mips64el-linux.

* gnu/packages/gtk.scm (gtk+): Disable tests on mips64el-linux.