Base templating. Refs #44. Refs #45.
Use Lato font. Refs #44.
Menu bar font styling. Refs #44.
Adjust search box positioning. Refs #44.
Merge remote-tracking branch 'origin/master'

Conflicts:
	demo/templates/demo/includes/header.html
	demo/templates/demo/includes/section_page_item.html
Fixing merge conflicts, mostly styling.
Added subpage_types to pages to restrcit lists.
Aded data priorities, and data catlog, added fab vagrant runser command.