Update drupal6-translations package to 20090621.

* pkgsrc change: remove PLIST.common_end which isn't needed any more.
* Add Belarusian(be), Catalan(ca), Indonesian(id), Dutch(nl), Turkish(tr) and
  Ukrainian(uk).
* Update Danish(da), Greek(el), Spanish(es), Brazilian Portuguese(pt-br),
  Russian(ru) and Swedish(sv)

(taca)