Added witness Call To Action
Merge branch 'master' of github.com:guardian/frontend into witness
Added quote marks to witness quotes
New testdata files (api query has changed)
Merge branch 'master' of github.com:guardian/frontend into witness

Conflicts:
	common/app/assets/images/global/sprite.png
	common/app/assets/stylesheets/theme/_global-icons-sprite.scss
	common/app/assets/stylesheets/theme/_global-icons-svg.scss
	style-guide/app/views/styleGuide/fragments/sprites.scala.html
Minor styling fixes
Merge branch 'master' of github.com:guardian/frontend into witness
Merge branch 'master' of github.com:guardian/frontend into witness
Merge branch 'master' of github.com:guardian/frontend into witness
Merge pull request #637 from guardian/witness

Guardian Witness