Convert openGraph meta data structure to Map
Merge pull request #3735 from guardian/og-tags

Convert openGraph meta data structure to Map
Add size for DFP inline1 ad slot at mobile breakpoint
Merge pull request #3737 from guardian/kc-dfp-mob-slot

Add size for DFP inline ad slots at mobile breakpoint
Merge branch 'master' of github.com:guardian/frontend into memcached