updating sinon
Merge pull request #2181 from guardian/js-test-components-upgrade

Updating sinon
Comments AJAX updated
Merge branch 'master' of https://github.com/guardian/frontend
Merge remote-tracking branch 'origin/master' into identity-facebook-autosignup
Casper test change for new discussion CTA
Refactor navigation
Show more button looks good on old android browsers
Merge pull request #2184 from guardian/refactor-navigation

Refactor navigation
Comments AJAX requests support crossdomain
Merge remote-tracking branch 'origin/master' into identity-facebook-autosignup
fix (some) pull request issues