There is ... light... unicode support. UTF8 strings are still supported, and can be transcoded from and to Latin-1. For anything more complex than that, you'll need to use Camomile or some other unicode library. You're right that these modules somehow got omitted from the API documentation; the online docs are being regenerated as I write this. The disappearance of UCharParser may have been a mistake; looking back at that commit, it looks like it was deleted instead of being modified to fit the removal of camomile. It will probably reappear in batteries 2.1.
E.