-Update from WebTranslator v3.0:
croatian - 47 changes by VoyagerOne
english_AU - 50 changes by mrtux
finnish - 25 changes by jpx_
korean - 1 changes by telk5093
polish - 50 changes by wojteks86


git-svn-id: http://svn.openttd.org/trunk@26751 6aa0318a-3be1-0310-93fa-89fd2396df07