Originally Posted by pynch
Are you sure about that? I have never seen a typeface without the apostrophe, which would be the only reason I know of why that replacement could happen.
I have seen lots of fonts without the curly apostrophe, some even without the straight one, but those often lack the isolated accent (or accented letters) too.
About line-breaking and hyphenation: most readers are crappy in that respect, and that's entirely the renderer's fault, not the ebook code's. I've seen hyphens added between an opening parenthesis and the following word, or between a word and a closing quote mark... I simply ignore this and hope (naively) that some day the renderers will behave more correctly.