-Update from WebTranslator v3.0:
catalan - 23 changes by juanjo
croatian - 4 changes by VoyagerOne
english_US - 5 changes by Supercheese
finnish - 1 changes by jpx_
luxembourgish - 4 changes by Phreeze
swedish - 2 changes by Joel_A


git-svn-id: http://svn.openttd.org/trunk@26465 6aa0318a-3be1-0310-93fa-89fd2396df07