Use querySelectorAll to fetch title from opf

This works in chrome and firefox. Jquery could not find the title node
in firefox, reason not known at present.
Fix typo in new book template.

Unfortunately it means a great many books have their unique identifier stored
as an identifer.
Same firefox fix for book id as 7ce3a20b.
Merge pull request #132 from oerpub/firefox-title-fix

Firefox title fix