Add WAI-ARIA Landmark Roles

Remove extraneous card partials
Add breadcrumbs microdata
Remove xmlns:fb from html root
Disable :directory_index for 404.html
Define site as devel deployment site
Revise <title> content generation
Disallow indexing of development site
Annotate logo with microdata
Name types of cards and card roles
Simplify card partial code before reorganizing
Beautify code for more helpful diffs
Disable social media until debugged
Create individual layouts for content and index pages
Merge branch 'cards' into working