Maildrop 0.9.35

Signature logos and inline pictures actually file now — root cause found.

Emails from Exchange (most Outlook mail) describe their attached pictures in a way the parser misread: it kept the message text and threw the pictures away, which is why signature logos showed as broken placeholders — and, since 0.9.34, triggered "inline image missing" warnings on email that was perfectly fine. The pictures were in the email all along; they now file into the PDF, and those warnings disappear. Verified against the exact emails that showed the problem.