gnu: harfbuzz: Update to 1.5.1.

* gnu/packages/gtk.scm (harfbuzz): Update to 1.5.1.

gnu: gtk+: Update to 3.22.21.

* gnu/packages/gtk.scm (gtk+): Update to 3.22.21.

gnu: ruby: Remove graft for 2.4.2.

* gnu/packages/ruby.scm (ruby): Update to 2.4.2.
[replacement]: Remove field.
(ruby-2.4.2): Remove variable.

gnu: gd: Remove graft for 2.2.5.

* gnu/packages/gd.scm (gd): Update to 2.2.5.
[source]: Remove obsolete patches.
[replacement]: Remove field.
(gd-2.2.5): Remove variable.
* gnu/packages/patches/gd-fix-gd2-read-test.patch,
gnu/packages/patches/gd-php-73968-Fix-109-XBM-reading.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove patches.
* gnu/packages/php.scm (php)[inputs]: Replace GD-2.2.5 with GD.

gnu: gdk-pixbuf: Remove graft for 2.36.10.

* gnu/packages/gtk.scm (gdk-pixbuf): Update to 2.36.10.
[replacement]: Remove field.
(gdk-pixbuf+svg)[replacement]: Likewise.
(gdk-pixbuf-2.36.10, gdk-pixbuf+svg-2.36.10): Remove variables.

gnu: bluez: Update to 5.47.

* gnu/packages/linux.scm (bluez): Update to 5.47.
[replacement]: Remove field.
(bluez/fixed): Remove variable.

Merge branch 'master' into staging

gnu: btrfs-progs: Install bash completions.

* gnu/packages/linux.scm (btrfs-progs)[arguments]: Add
'install-bash-completion' phase.

gnu: python-pyjwt: Update to 1.5.3.

* gnu/packages/python.scm (python-pyjwt): Update to 1.5.3.

gnu: samba: Update to 4.6.8.

* gnu/packages/samba.scm (samba): Update to 4.6.8.

gnu: nss, nss-certs: Update to 3.33.

* gnu/packages/gnuzilla.scm (nss): Update to 3.33.
* gnu/packages/certs.scm (nss-certs): Likewise.

gnu: nspr: Update to 4.17.

* gnu/packages/gnuzilla.scm (nspr): Update to 4.17.

gnu: gnupg: Update to 2.2.1.

* gnu/packages/gnupg.scm (gnupg): Update to 2.2.1.

gnu: system: Fix computation of boot parameters for LUKS devices.

* gnu/system.scm (read-boot-parameters): Fix store-device computation for root
devices of type "device", like the LUKS partition described in the manual.
From a patch from https://debbugs.gnu.org/cgi/bugreport.cgi?bug=28445#23.

Signed-off-by: Andy Wingo <wingo@igalia.com>

gnu: xorg-server: Prefer intel driver only for older GPUs.

* gnu/packages/xorg.scm (xorg-server): Add patch to only prefer the intel
  driver for older Intel GPUs.

Signed-off-by: Andy Wingo <wingo@igalia.com>

gnu: services: Add modesetting driver to xorg configuration path.

* gnu/services/xorg.scm (xorg-configuration-file): Add drivers path from
  xorg-server.  This includes the modesetting driver.

Signed-off-by: Andy Wingo <wingo@igalia.com>

gnu: xf86-video-intel: Update to latest Git.

* gnu/packages/xorg.scm (xf86-video-intel): Update to latest Git.

Signed-off-by: Andy Wingo <wingo@igalia.com>

gnu: Add cheese.

* gnu/packages/gnome.scm (cheese): New public variable.

Signed-off-by: Andy Wingo <wingo@igalia.com>

gnu: Add gnome-video-effects.

* gnu/packages/gnome.scm (gnome-video-effects): New public variable.

Signed-off-by: Andy Wingo <wingo@igalia.com>

download: Don't report the progress too fast.

* guix/utils.scm (<progress-reporter>): New record type.
(call-with-progress-reporter): New procedure.
* guix/build/download.scm (dump-port*, rate-limited, progress-reporter/file):
New procedures.
(ftp-fetch, http-fetch): Use 'dump-port*'.
(progress-proc): Remove procedure.
* guix/scripts/substitute.scm (progress-report-port): Rewrite in terms of
<progress-reporter>.
(process-substitution): Adjust accordingly.