gnu: Add sqlite-with-fts5.

* gnu/packages/databases.scm (sqlite-with-fts5): New variable.

gnu: python-xapian-bindings: Don't hard-code Python sitedir.

* gnu/packages/search.scm (python-xapian-bindings)[arguments]: In #:make-flags,
use VERSION-MAJOR+MINOR to set pkgpylibdir.

gnu: python-spectra: Update to 0.0.11.

* gnu/packages/python.scm (python-spectra): Update to 0.0.11.

gnu: python-colormath: Update to 3.0.0.

* gnu/packages/python.scm (python-colormath): Update to 3.0.0.

gnu: python-networkx: Update to 2.1.

* gnu/packages/python.scm (python-networkx): Update to 2.1.
[source](uri): Change to zipball.
[native-inputs]: Add UNZIP.

gnu: evolution-data-server: Fix build failure against ICU 60.

* gnu/packages/gnome.scm (evolution-data-server)[arguments]: Add
CMAKE_CXX_FLAGS=-std=gnu++11 to #:configure-flags.

Merge branch 'master' into core-updates

gnu: diamond: Update to 0.9.15.

* gnu/packages/bioinformatics.scm (diamond): Update to 0.9.15.

gnu: appstream-glib: Update to 0.7.5.

* gnu/packages/glib.scm (appstream-glib): Update to 0.7.5.
[arguments]: Drop ‘enable-’ prefix from Meson options.

gnu: gcab: Update to 1.0 [fixes CVE-2018-5345].

* gnu/packages/package-management.scm (gcab): Update to 1.0.
[build-system]: Switch to meson-build-system.
[native-inputs]: Add glib:bin and vala.
[arguments]: Don't build developer documentation.
Disable introspection, thanks.

gnu: ncdc: Use HTTPS for home page.

* gnu/packages/dc.scm (ncdc)[home-page]: Use HTTPS.

gnu: ncdc: Update to 1.20.

* gnu/packages/dc.scm (ncdc): Update to 1.20.

gnu: conky: Update to 1.10.7.

* gnu/packages/conky.scm (conky): Update to 1.10.7.
[arguments]: Use pkg-config to find ncurses.
[inputs]: Add imlib2 and libxext.

gnu: perl-mime-types: Update to 2.16.

* gnu/packages/perl.scm (perl-mime-types): Update to 2.16.

gnu: keybinder: Update URI.

* gnu/packages/wm.scm (keybinder)[source, home-page]: Update URI.

gnu: 4store: Update URI.

* gnu/packages/databases.scm (4store)[source, home-page]: Update URI.

gnu: deeptools: Update URI.

* gnu/packages/bioinformatics.scm (deeptools)[source, home-page]: Update
URI.

gnu: elfutils: Mark up description.

* gnu/packages/elf.scm (elfutils)[description]: Use @dfn and @command.

gnu: elfutils: Update to 0.170.

* gnu/packages/elf.scm (elfutils): Update to 0.170.

build-system/dub: Fix typo.

* guix/build/dub-build-system.scm (grep, grep*): Correct ‘occurence’.