gnu: Add bluez-alsa.

* gnu/packages/audio.scm (bluez-alsa): New variable.

gnu: Add ortp.

* gnu/packages/telephony.scm (ortp): New variable.

gnu: Add bctoolbox.

* gnu/packages/telephony.scm (bctoolbox): New variable.

gnu: mbedtls-apache: Build shared library.

* gnu/packages/tls.scm (mbedtls-apache)[arguments]: Enable building of shared
library.

gnu: spice: Update to 0.14.0.

This is a follow-up to commit 9a187b39b7991463aa6985f5b746fccf69789525.

* gnu/packages/spice.scm (spice): Update to 0.14.0.
[source]: Remove obsolete patches. Use HTTPS URL.
[inputs]: Add orc.
[home-page]: Update to use https.
* gnu/packages/patches/spice-CVE-2016-9577.patch,
gnu/packages/patches/spice-CVE-2016-9578-1.patch,
gnu/packages/patches/spice-CVE-2016-9578-2.patch,
gnu/packages/patches/spice-CVE-2017-7506.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu: bazaar: Fix CVE-2017-14176.

* gnu/packages/patches/bazaar-CVE-2017-14176.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/version-control.scm (bazaar)[source]: Use it.

bootloader: extlinux: Stop using dd binary.

* gnu/bootloader/extlinux.scm (dd): Remove it,
(install-extlinux): replace dd call by Guile I/O procedures.
* gnu/system/vm.scm (qemu-image): Add (ice-9 binary-ports) to used-modules
list to provide "get-bytevector-n" and "put-bytevector".
* guix/scripts/system.scm (bootloader-installer-derivation): Ditto.

doc: Mention berlin.guixsd.org.

* doc/guix.texi (Substitute Server Authorization): Add note about
berlin.guixsd.org.  Nitpick.

maint: Add 'berlin.guixsd.org.pub'.

* bayfront.guixsd.org.pub: Rename to...
* berlin.guixsd.org.pub: ... this.
* Makefile.am (dist_pkgdata_DATA): Adjust accordingly.
* gnu/services/base.scm (%default-authorized-guix-keys): Likewise.

Update NEWS.

gnu: git: Remove unreliable git-svn tests.

Reported in <https://bugs.gnu.org/29546>
by Mark H Weaver <mhw@netris.org>.

* gnu/packages/version-control.scm (git)[arguments]: In 'patch-tests'
phase, delete three git-svn tests.

maint: Let 'guix system vm-image' determine the right size.

* Makefile.am (GUIXSD_VM_IMAGE_BASE): Remove.
(release): Remoev --image-size argument to 'guix system vm-image'.

maint: Add 'aarch64-linux' to the supported systems.

* Makefile.am (SUPPORTED_SYSTEMS): Add aarch64-linux.

maint: Add the '.iso' extension to installation images.

* Makefile.am (release): Add the '.iso' suffix to image files.
* doc/guix.texi (USB Stick and DVD Installation): Adjust accordingly.

doc: Merge "USB Stick Installation" and "DVD Installation".

* doc/guix.texi (USB Stick Installation): Rename to...
(USB Stick and DVD Installation): ... this.  Merge contents with...
(DVD Installation): ... this node.  Remove.

tests: Look for multi-digit column numbers in unbound variable test.

* tests/guix-system.sh: Match one or more digits in unbound-variable test.

nls: Update 'fr' translation.

gnu: elixir: Update to 1.5.2 and disable failing tests.

* gnu/packages/elixir.scm (elixir)[origin]: Update to 1.5.2.
[arguments]: Patch the shebang of mix. Disable failing tests.

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

gnu: erlang: Update to 20.1.

* gnu/packages/erlang.scm (erlang): Update to 20.1.

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

services: xorg: Properly handle the case where ~/.xession is used.

Fixes a regression introduced in
65c0f43649b455db94f1e8b0a244a889cb961b25 in the case where users provide
~/.xsession and SESSION is #f.

* gnu/services/xorg.scm (xinitrc): In the XSESSION-FILE case, check
whether SESSION is #f.