Initial pass at Devise integration.
Put content into the exchange section.  Take the opportunity to write a general-purpose accordion template that reads from a structured array of content.
Merge branch 'develop' into feature/templates

Conflicts:
	app/controllers/pages_controller.rb
	app/views/layouts/splash.haml
Merge branch 'develop' into feature/templates

Conflicts:
	app/controllers/application_controller.rb
	app/controllers/pages_controller.rb