gnu: python-pyopenssl: Update to 16.2.0.

* gnu/packages/python.scm (python-pyopenssl): Update to 16.2.0.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: python-simplejson: Update to 3.10.0.

* gnu/packages/python.scm (python-simplejson): Update to 3.10.0.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

pull: Add guile-ssh to the dependencies.

Fix regression introduced in 9e76eed.

* build-aux/build-self.scm (guile-ssh): New variable.
(build)[builder]: Add 'guile-ssh' to %load-path and %load-compiled-path.

gnu: Add mumble.

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

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: transmission: Update to 2.92.

* gnu/packages/bittorrent.scm (transmission): Update to 2.92.
[inputs]: Add cyrus-sasl.

gnu: roary: Update to 3.7.0.

* gnu/packages/bioinformatics.scm (roary): Update to 3.7.0.

gnu: Add proteinortho.

* gnu/packages/bioinformatics.scm (proteinortho): New variable.

gnu: Add python-polib.

* gnu/packages/python.scm (python-polib, python2-polib): New variables.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: Whitespace changes

* gnu/services/kerberos.scm: Fold lines to 80 character limit.

mailmap: Associate all commits by ng0 with ng0.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu: imagemagick: Update to 6.9.6-6 [fixes CVE-2016-9556].

* gnu/packages/imagemagick.scm (imagemagick): Update to 6.9.6-6.

doc: mysql-configuration: Fix typo.

* doc/guix.texi (Database Services): Fix typo of 'mysql-configuration'.

services: Add opensmtpd service.

* gnu/services/mail.scm (<opensmtpd-configuration>): New record type.
(%default-opensmtpd-config-file, %opensmtpd-accounts): New variables.
(opensmtpd-shepherd-service, opensmtpd-activation): New procedures.
(opensmtpd-service-type): New variable.
* doc/guix.texi (Mail Services): Document it.

gnu: Add missing module import to (gnu packages ldc).

This is a followup to commit e44b511298590ecc87c2c85d1cbc043a638dd1e0.

* gnu/packages/ldc.scm: Import (gnu packages python).

gnu: ldc: Update to 0.17.2.

* gnu/packages/ldc.scm (ldc): Update to 0.17.2.
* gnu/packages/patches/ldc-disable-tests.patch: Fix timezone file name.

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

offload: Drop 'remote-pipe'.

* guix/scripts/offload.scm (remote-pipe): Remove.
(machine-load): Use 'open-remote-pipe*' instead of 'remote-pipe'.

offload: Rewrite to make direct RPCs to the remote daemon.

* guix/scripts/offload.scm (<build-machine>)[daemon-socket]: New field.
(connect-to-remote-daemon): New procedure.
(%gc-root-file, register-gc-root, remove-gc-roots, offload): Remove.
(transfer-and-offload): Rewrite using 'connect-to-remote-daemon' and
RPCs over SSH.
(store-import-channel, store-export-channel): New procedures.
(send-files, retrieve-files): Rewrite using these.

offload: Remove 'with-nar-error-handling' macro.

* guix/scripts/offload.scm (with-nar-error-handling): Remove.
(guix-offload): Use 'with-error-handling' instead.

store: 'open-connection' can taken an open port.

* guix/store.scm (open-unix-domain-socket): New procedure.
(open-connection): Add #:port parameter and honor it.

offload: Reuse SSH session during 'transfer-and-offload'.

* guix/scripts/offload.scm (remote-pipe): Replace 'machine' parameter
with 'session'.  Remove 'open-ssh-session' call.
(register-gc-root): Replace 'machine' with 'session'.  Use '
session-get' instead of 'build-machine-name'.
(remove-gc-roots, offload, send-files, retrieve-files): Likewise.
(transfer-and-offload): Add 'open-ssh-session' call.  Handle 'offload'
errors here.
(machine-load): Add call to 'open-ssh-session'.