Changed 'about this page' link name to 'info and resources'
Added complaints and corrections to footer links
Merge pull request #5865 from guardian/footer-links-info-and-resources

Footer links info and resources
Remove childrens book popular switch
Merge pull request #5867 from guardian/remove-childrens-popular-switch

Remove childrens book popular switch
move audio popular to a horizontal container
no secondary column for audio pages
add audio classes to trails