moving from aria-labelledby strictly to aria-controls for labelling tab/tabpanel relationship
re-ordering some functions so module makes more sense, renaming key handler function

Conflicts:
	source/javascripts/prototypes/responsive-tabs.js
cleaning up comments
titles in demo
fix to VO announcing all tab elements as "clickable"
removing ability to toggle accordion open or closed, no great solution right now without including a match media polyfill for handling aria states on a closed accordion state when window is resized back to tabs