Accessibility standards require <th scope='row|col'> attributes.

I first submitted this in pull request #124 50aad8db481e75d2a9d99d1cf86da99b6397ef2f (against CKAN 1.7) which @amercader re-submitted in pull request #129, which was applied to release-v1.8, but it was never applied to the new templates in master.

This is a requirement for U.S. federal government websites (or at least ours).
remove extra quote
Merge branch 'patch-template-error' into hd_local-v2.0
apply HHS/HealthData branding and remove references to CKAN because product endorsements are not allowed
apply custom RDF XML and N3 templates, but the N3 template is compltely nonfunctional: CKAN 2 is not processing template directives, and even if it did the template language is not smart enough to do N3 string escaping, so results will probably not be valid