Add stack with rail layout, remove list/grid view stuff that's never been used
Add columns for card stacks
Fix wallpaper ads for responsive layouts
Cleanup old card variables, add ad-rail layout variation
Add 'cinema view' breakpoint and grid classes
Update card grid helper to account for ad rail and remove columns argument
Tweak wallpaper ad background position
Merge pull request #1082 from lonelyplanet/matth/responsive-place-highlights

Responsive place highlights