WIP: Add microdata markup to detail pages

This change adds microdata to the location detail page.

Microdata is a method to annotate information with semantic "hints". Search engine indexers use these hints to understand the content of pages and, in some cases, alter the display of items in search results.

Spec: http://schema.org/

TODO

- markup for location hours
- images
- clarify correctness of Location vs. PostalAddress