-Update from WebTranslator v3.0:
italian - 15 changes by lorenzodv
korean - 1 changes by telk5093
lithuanian - 19 changes by Stabilitronas
brazilian_portuguese - 4 changes by Tucalipe
slovak - 1 changes by Milsa


git-svn-id: http://svn.openttd.org/trunk@26661 6aa0318a-3be1-0310-93fa-89fd2396df07