Support generic HTML meta tags (Twitter, Open Graph, etc.)

A minor release to add support for generic meta tags (e.g., Twitter, Open Graph, Google Scholar). Minor change to correct HTML5 main and article element ordering.

Updated release

Incorporate changes since the last beta release into a new release package.

Line in sand prior to next updates

Moving to a controlled version history to ensure that codes changes can be referenced, and future project work is versioned.