gnu: eudev: Update to 3.2.4 and generate manpages.

* gnu/packages/linux.scm (eudev)[version]: Bump to 3.2.4.
[uri]: Download the release from Github, which contains the script to generate
the manpages from source.
[file-name]: Add a file-name field to the origin record, per linter recommendation.
[sha256]: Adjust accordingly.
[phases]: Add a bootstrap phase to regenerate the manpages.
[configure-flags]: Add the "--enable-manpages" option, required to install the
manpages.
[native-inputs]: Add autoconf, automake and libtool for the bootstrap phase.
Add python-wrapper to run a test script that was previously skipped.
Add docbook-xml, docbook-xsl, libxml2 and libxslt for manpage generation.

Merge branch 'master' into staging

gnu: samba: Install manual pages.

* gnu/packages/samba.scm (samba)[arguments]<#:phases>: Add
'locate-docbook-stylesheets' phase.
[native-inputs]: Add DOCBOOK-XSL and LIBXSLT.

gnu: tklib: Fix typo.

This is a follow-up to commit 1966481fe306691d9fad7dda0da6143f93055cae.

* gnu/packages/tcl.scm (tklib)[description]: Fix Texinfo markup.

gnu: potrace: Update to 1.15 [fixes CVE-2017-12067].

* gnu/packages/fontutils.scm (potrace): Update to 1.15.

gnu: e2fsprogs: Update to 1.43.6.

* gnu/packages/linux.scm (e2fsprogs): Update to 1.43.6.

gnu: powertop: Update to 2.9.

* gnu/packages/linux.scm (powertop): Update to 2.9.
[source]: Adjust URI.

gnu: lftp: Update to 4.8.2.

* gnu/packages/ftp.scm (lftp): Update to 4.8.2.

gnu: pulseview: Build with modular Qt.

* gnu/packages/electronics.scm (pulseview)[inputs]: Remove QT.  Add QTBASE and QTSVG.

gnu: tklib: Add missing closing brace.

Fixes <http://bugs.gnu.org/28624>.
Reported by Jelle Licht <wordempire@gmail.com>

* gnu/packages/tcl.scm (tklib): Add closing brace.

gnu: lilypond: Fix fontforge detection.

* gnu/packages/music.scm (lilypond)[arguments]: Adjust fontforge
detection algorithm to allow for SOURCE_DATE_EPOCH in fontforge's build.

gnu: git: Update to 2.14.2.

* gnu/packages/version-control.scm (git): Update to 2.14.2.

gnu: btrfs-progs: Update to 4.13.1.

* gnu/packages/linux.scm (btrfs-progs): Update to 4.13.1.
[inputs]: Add zstd.

build-system: meson: Fix typo in variable name.

* guix/build-system/meson.scm (lower): fix typo in glib-or-gtk?.

gnu: Add tklib.

* gnu/packages/tcl.scm (tklib): New variable.

services: cuirass: Add host option.

* gnu/services/cuirass.scm (<cuirass-configuration>): Add host option.
(cuirass-shepherd-service): Pass host option.
* doc/guix.texi (Continuous Integration): Document it.

gnu: cuirass: Update development snapshot.

* gnu/packages/ci.scm (cuirass): Update to commit 87ad259.

gnu: libunwind: Update to 1.2.1.

* gnu/packages/libunwind.scm (libunwind): Upate to 1.2.1.
[source]: Remove 'libunwind-CVE-2015-3239.patch'.
* gnu/packages/patches/libunwind-CVE-2015-3239.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: Add uim, uim-gtk and uim-qt.

* gnu/packages/xorg.scm (uim, uim-gtk, uim-qt): New variables.

tests: install: Switch to modifying the gc-root-service-type.

Fixes <https://bugs.gnu.org/28600>.
Fixes a regression introduced in
4e854b1814a9216ae7cc90aef4d82fd989a519c3.
Reported by Christopher Baines <mail@cbaines.net>.

* gnu/tests/install.scm (operating-system-with-gc-roots): Use
'simple-service' to extend GC-ROOT-SERVICE-TYPE instead of instantiating
it.