First cut at Twitter cards
Merge branch 'master' of github.com:guardian/frontend into twitter-cards
Twitter card tests
Corrected the properties for different types of page
Corrected the properties for different types of page
Articles validated and tested
Test gallery twitter cards
twitter card tests for pictures and cartoons
Removed outdated file
Remove unused trait
Ignore the picture test until I can diagnose with someone
Merge pull request #1958 from guardian/twitter-cards

Twitter cards