Add "printer-friendly" view of quiz preview

Some sites might have a requirement to distribute paper quizzes (for example, for accessibility reasons), but there is currently no easy way to produce a printed quiz version that is suitable for giving to a student. The question bank export does not fully export matching/sequence questions, and the browser print facility does not give good results. Ideally, it would be great to have the quiz preview export to an RTF file or a printer-friendly HTML page in a new window.