* Remove the art/playground/ directory from the 'upstream'-source
  (*.orig.tar.gz).
* Use new artwork for PXE boot screen.  Remove outdated paragraph from
  art/splash/README.
* Minor kdm/gdm-theme design modifications.
* Use Debian default path for kdm-theme.
* Fix path in art/kdm-theme/kdm-default (which seems to be ignored).
* Improve contrast to background.
* Update desktop-background's picture_filename in GConf defaults
  (closes: #638541).
* debian/changelog: Merge four svn versions (which where uploaded to Debian
  Edu) into this one, before uploading to unstable.
* debian/rules: don't remove art/playground when creating orig.tar.gz.