gnome-themes-extras-2.22.0-bp152.3.22

- Modernize spec-file by calling spec-cleaner

- Use full URL for source.

- Spec-cleanup using format_spec_file service.

- add libtool as buildrequire to make the spec file more reliable

- Use the %icon_theme_cache_* macros to make sure the icon theme
  caches are created/updated.

- Backport fix to Darklooks theme (bgo#528322).

- Added support for translation-update-upstream (FATE#301344).

- Updated to version 2.22.0:
  * New Unity Gtk Theme
  * New Unity Metacity Theme
  * New GNOME-Alternative Icon Theme
  * Updated Foxtrot Icon Theme

- New SuSE package, version 2.20.