gnu: gsettings-desktop-schemas: Update to 3.18.0.

* gnu/packages/gnome.scm (gsettings-desktop-schemas): Update to 3.18.0.

gnu: vala: Update to 0.30.0.

* gnu/packages/gnome.scm (vala): Update to 0.30.0.
  [arguments]: Run tests with "DBUS_FATAL_WARNINGS=0'.

gnu: librsvg: Fix tests.

GLib doesn't allow duplicate test case paths any more.

* gnu/packages/patches/librsvg-tests.patch: New file.
* gnu/packages/gnome.scm (librsvg)[source]: Add patch.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: librsvg: Update to 2.40.11.

* gnu/packages/gnome.scm (librsvg): Update to 2.40.11.

Merge branch 'master' into core-updates

gnu: Add file-roller.

* gnu/packages/gnome.scm (file-roller): New variable.

Merge branch 'core-updates'

Merge branch 'master' into core-updates

gnu: Add shotwell.

* gnu/packages/gnome.scm (shotwell): New variable.

gnu: Add gexiv2.

* gnu/packages/gnome.scm (gexiv2): New variable.

gnu: Add libgee.

* gnu/packages/gnome.scm (libgee): New variable.

gnu: librsvg: Update to 2.40.10.

* gnu/packages/gnome.scm (librsvg): Update to 2.40.10.

gnu: libgsf: Update to 1.14.34.

* gnu/packages/gnome.scm (libgsf): Update to 1.14.34.

Merge branch 'master' into core-updates

gnu: Rename librest to rest.

* gnu/packages/gnome.scm (rest): Rename from librest.

gnu: clutter: Add "doc" output.

* gnu/packages/gnome.scm (clutter)[outputs]: New field.
  [arguments]: Pass --with-html-dir.

gnu: Add libchamplain.

* gnu/packages/gnome.scm (libchamplain): New variable.

gnu: Add yelp-tools.

* gnu/packages/gnome.scm (yelp-tools): New variable.

gnu: Add yelp.

* gnu/packages/gnome.scm (yelp): New variable.

gnu: Add yelp-xsl.

* gnu/packages/gnome.scm (yelp-xsl): New variable.