Rubocop specific and general tweaks after responsive menu pull.
Rubocop max line length bumped to 90 characters.
Added self-referential sub and parent heading to NavigationHeading with associated changes to the menu with model and feature specs.
Changed the way region names are displayed. Added some countdown text on homepage for after an active election occurs.
Refactored the navigation menu feature spec: more nested contexts, one expect per scenario, DRY CSS selectors.