Merge branch 'blue-footer' into show-footer-nav
1 div fewer
add footer nav
handle nav click on any suitable element

element declares its target
move mega nav to new home
make bottom visible at all times

subject to toggle, of course
hide border on first visible item

stop title jiggling about on toggle
hide only the footer section nav from readers
make sure footer section nav is hidden and the mega nav is visible without js
Merge branch 'master' of github.com:guardian/frontend into show-footer-nav
missing ;s
remove sections fragment
move topnav into common fragment
dont pass things that can be defined in their own fragment
bottom nav should not have local/signposting classes EVER

unless they are added later
hide nav in identity
indent tag
only one navigation role per page
restore navigation landmarks

pending more info
footer nav is not a real nav