add social icons to facia
Merge branch 'master' of github.com:guardian/frontend into bn-standfirst
include social icons in facia head
position social icon in container
create small social icon and ability to label
Merge branch 'bn-standfirst' into fronts-social
Merge branch 'master' of github.com:guardian/frontend into fronts-social
update docs
Merge pull request #7503 from guardian/fronts-social

Enable social icons to be hacked into fronts