We should use NFKD instead of NFD since we are flattening to US-ASCII
afterwards anyway. This allows various Unicode characters which would
end up as a question mark to be represented by their compatibility
decomposition. This applies to e.g. ligatures (e.g. U+FB01 LATIN SMALL
LIGATURE FI will now be replaced with plain fi instead of a question
mark), and also the U+00A0 NO-BREAK SPACE [NBSP] to be replaced by
a normal space instead of a question mark.
+Add Czech fancy quotes to the Czech transliterator
+Add a unit test for Multitransliterator
