Last modified: 2012-09-27 01:11:06 UTC
Please test the vector skin under a text browser like w3m or Firefox's View>Page Style>No Style. You'll see at least this: <actions> <namespaces> I.e., those strings don't appear in languages/messages/MessagesEn.php. Please grep on all the rest of the messages to make sure they are in at least MessagesEn.php. My visual check was not systematic. (Never mind the "<" ">": bug 14531, unrelated to the vector skin.)
Fixed in r52823.