-Update from WebTranslator v3.0:
czech - 4 changes by djst
serbian - 2 changes by ivan_mile


git-svn-id: http://svn.openttd.org/trunk@26478 6aa0318a-3be1-0310-93fa-89fd2396df07
-Codechange: use MallocT instead of malloc


git-svn-id: http://svn.openttd.org/trunk@26479 6aa0318a-3be1-0310-93fa-89fd2396df07
-Fix (r26479): forgot to remove a *


git-svn-id: http://svn.openttd.org/trunk@26480 6aa0318a-3be1-0310-93fa-89fd2396df07