DO NOT MERGE

cherypick from jb-dev Change-Id: Ifcae4fcf716c8bb48f3ff18f17313b3f131c3f73

refactor the logic for changing languages in global strings.
instead of using separate <span> elements for each language,
provide a unique attribute in each <a> element for each localized
version of that link's title.

Change-Id: I09c65a8dce9b3d9623e32fe17876b055e452618b