user switch for
 para indent tests
set class on body; remove old ab-added class
better regex
Merge pull request #1082 from guardian/paras-user-zoom

User switch for para indent tests
Fix article test
Merge branch 'master' of github.com:guardian/frontend
Fix article integration test
Email button is darker
Update mail icon
Merge branch 'master' of github.com:guardian/frontend into css-head