Last month, Sabine Cretella was having trouble with double apostrophes in page and category titles, since they were of course treated as wiki markup for italicizing. A workaround of using '' was suggested and seems to work. Platonides suggested using Unicode single quotes (U+2019) instead of apostrophes, and I meant to suggest using Unicode apostrophes (U+02BC). Phil Boswell suggested using an invisible "breaker" or "joiner" between the two apostrophes, such as U+200D Zero-width Joiner.
And there's at least one more possibility: today I happened to notice that there's also a Unicode double apostrophe character, U+02EE. I'm not sure, but it might be tailor-made for Neopolitan.