lightbox styling
Fixed lightbox height issue and client side caching
Added loading indicator
Disable pushstate in unsuuported browser and with mobile layout
Moved all the functions in site.js inside the onDocumentReady function (otherwise these would be applied twice too)
Fixed error with autocomplete when runinng script in lightbox
Fixed IE10-11 issue with scroll position and bs-affix
Merge branch 'feature/push-state-2' into staging