Add base css to the head
Remove duplicate extends from head.scss
Merge branch 'master' of github.com:guardian/frontend into optimise-css-head

Conflicts:
	common/app/assets/stylesheets/module/trails/_trail.scss
Clean syntax
Fix styling regressions
Separate r2 comment styling from head
Merge branch 'master' of github.com:guardian/frontend into optimise-css-head
Remove alt and title attributes from trail images
Merge branch 'master' of github.com:guardian/frontend into optimise-css-head
Follow BEM conventions and trim how title attributes are populated by relative timestamp script
Make sure images have been upgraded when displaying their container
Remove tests removers
More story telling CSS fixes
Merge pull request #1104 from guardian/remove-legacy-tests-removers

Remove tests removers
Merge pull request #1099 from guardian/fix-images-loading-3g

Make sure images have been upgraded when displaying their container
Merge pull request #1098 from guardian/remove-title-alt-attributes-trails

Remove alt and title attributes from trail images
Merge pull request #1097 from guardian/optimise-css-head

Optimise css head
Merge branch 'master' of github.com:guardian/frontend into remove-unused-icons

Conflicts:
	common/app/assets/stylesheets/theme/_icons.scss