gnu: Electrum: Update to 3.0.5 [security fixes].

This fixes a critical security issue:

<https://github.com/spesmilo/electrum/issues/3374>

* gnu/packages/finance.scm (electrum): Update to 3.0.5.

gnu: kurly: Install some documentation.

* gnu/packages/curl.scm (kurly)[arguments]: Install the README in an
'install-readme' phase and don't install the source code.

gnu: feh: Update to 2.23.

* gnu/packages/image-viewers.scm (feh): Update to 2.23.

gnu: xscreensaver: Update to 5.38.

* gnu/packages/xdisorg.scm (xscreensaver): Update to 5.38.

gnu: samba: Update to 4.7.4.

* gnu/packages/samba.scm (samba): Update to 4.7.4.

gnu: whois: Update to 5.2.20.

* gnu/packages/networking.scm (whois): Update to 5.2.20.

gnu: jsoncpp: Update to 1.8.4.

* gnu/packages/serialization.scm (jsoncpp): Update to 1.8.4.

linux-boot: Add #:on-error for initrd error handling.

Suggested by Danny Milosavljevic <dannym@scratchpost.org>
in <https://bugs.gnu.org/29922>.

* gnu/build/linux-boot.scm (boot-system): Add #:on-error parameter and
pass it to 'call-with-error-handling'.
* gnu/system/linux-initrd.scm (raw-initrd): Add #:on-error and pass it.
(base-initrd): Likewise.

gnu: Add vboot-utils.

* gnu/packages/bootloaders.scm (vboot-utils): New public variable.

gnu: Add iucode-tool.

* gnu/packages/linux.scm (iucode-tool): New public variable.

gnu: Add rename.

* gnu/packages/admin.scm (rename): New public variable.

gnu: lame: Remove obsolete workaround.

* gnu/packages/mp3.scm (lame)[native-inputs]: Remove.

gnu: openvswitch: Update to 2.8.1.

* gnu/packages/networking.scm (openvswitch): Update to 2.8.1.

gnu: guile-wiredtiger: Update to 0.6.3.

* gnu/package/databases.scm (guile-wiredtiger): Update to 0.6.3.
[arguments]: Enable tests; disable parallel tests; remove
'remove-bundled-dependencies' phase.
[synopsis, description]: Improve them.

Signed-off-by: Kei Kebreau <kkebreau@posteo.net>

gnu: Add emacs-bongo.

* gnu/packages/emacs.scm (emacs-bongo): New variable.

gnu: snakemake: Update to 4.4.0.

* gnu/packages/python.scm (snakemake): Update to 4.4.0.

gnu: elixir: Update to 1.5.3.

* gnu/packages/elixir.scm (elixir): Update to 1.5.3.

gnu: services: Add darkstat service.

* gnu/services/monitoring.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Monitoring Services): Document it.

gnu: Add darkstat.

* gnu/packages/monitoring.scm (darkstat): New variable.

import: crate: Gracefully deal with missing license info.

Reported by Fis Trivial <ybbs.daans@hotmail.com>.
Fixes <https://bugs.gnu.org/28987>.

* guix/import/crate.scm (crate-fetch): Check whether the "license" info
is present.