gnu: libnotify: Update to 0.7.7.

* gnu/packages/gnome.scm (libnotify): Update to 0.7.7.

gnu: libgnomekbd: Update to 3.22.0.

* gnu/packages/gnome.scm (libgnomekbd): Update to 3.22.0.

gnu: libchamplain: Update to 0.12.14.

* gnu/packages/gnome.scm (libchamplain): Update to 0.12.14.

gnu: clutter-gst: Update to 3.0.22.

* gnu/packages/gnome.scm (clutter-gst): Update to 3.0.22.

gnu: clutter-gtk: Update to 1.8.2.

* gnu/packages/gnome.scm (clutter-gtk): Update to 1.8.2.

gnu: cogl: Update to 1.22.2.

* gnu/packages/gnome.scm (cogl): Update to 1.22.2.

gnu: gtkmm@2: Update to 2.24.5.

* gnu/packages/gtk.scm (gtkmm-2): Update to 2.24.5.

gnu: gtkmm: Update to 3.22.0.

* gnu/packages/gtk.scm (gtkmm): Update to 3.22.0.

gnu: gtk+: Update to 3.22.6.

* gnu/packages/gtk.scm (gtk+): Update to 3.22.6.

gnu: at-spi2-atk: Update to 2.22.0.

* gnu/packages/gtk.scm (at-spi2-atk): Update to 2.22.0.

gnu: at-spi2-core: Update to 2.22.0.

* gnu/packages/gtk.scm (at-spi2-core): Update to 2.22.0.

gnu: atk: Update to 2.22.0.

* gnu/packages/gtk.scm (atk): Update to 2.22.0.

gnu: gtksourceview: Update to 3.22.2.

* gnu/packages/gtk.scm (gtksourceview): Update to 3.22.2.

gnu: pango: Update to 1.40.3.

* gnu/packages/gtk.scm (pango): Update to 1.40.3.

gnu: harfbuzz: Update to 1.4.1.

* gnu/packages/gtk.scm (harfbuzz): Update to 1.4.1.

gnu: glib-networking: Update to 2.50.0.

* gnu/packages/gnome.scm (glib-networking): Update to 2.50.0.

gnu: python-pygobject: Update to 3.22.0.

* gnu/packages/glib.scm (python-pygobject): Update to 3.22.0.

gnu: gsettings-desktop-schemas: Update to 3.22.0.

* gnu/packages/gnome.scm (gsettings-desktop-schemas): Update to 3.22.0.

gnu: desktop-file-utils: Update to 0.23.

* gnu/packages/gnome.scm (desktop-file-utils): Update to 0.23.

gnu: shared-mime-info: Update to 1.8.

* gnu/packages/gnome.scm (shared-mime-info): Update to 1.8.