Merge branch 'master' into navigation
  Removing nag close toggle and putting in header
adding accordian wrapping class
wrapping nav in an extra div

Wrapping nav in a div to match layout of other header elements
Add close other accordian elements

Allowing other accordion elements to close when one is opened
removing navigation toggle js
Styling navigation for animation
Merge branch 'master' into navigation

Conflicts:
	source/js/accordion.js
	source/scss/nzpost_base/partials/organisms/_header.scss
Merge branch 'navigation'