L10N

- A new 'verify_l10n' utility ensures the localizations are in sync (thanks to
  Wim Schuermann).
Unit Tests

- Modifed the color.duetoday.t test to look for 'red', which for some reason
  fails on Ubuntu 12.10, *sometimes*.  This change removes the red/rgb400
  duality, which was wrong anyway.  We'll call this 'cleanup'.