Remove checkout files
Merge pull request #830 from lonelyplanet/if-remove-checkout

Remove checkout files
Make Flickr widget work with new data format
Merge pull request #832 from lonelyplanet/ip_flickr_widget_data

Make Flickr widget work with new data format
Clean up layouts, add documentation
Merge pull request #831 from lonelyplanet/if-layouts

Clean up layouts, add documentation
tmp
temp
Works on mobile
Clean up code around the nav--primary button
Tweak subnav arrow
WIP refactor of submenu nav items