Merge pull request #22 from guardian/add-sass

Add sass to build for responsive layout (soulmates)
Run Sass on default and build tasks.
Disable Sass for testing.
Fix artifact structure for Magenta.
Correcting deploy settings.
Correcting deploy settings.
Adding cache control header.
Updating for Magenta/pasteup support.
Updating for Magenta/pasteup support.
For magenta deploy.
New values for s3 deploy.
Corrected regex for version number caching.
Corrected regex for version number caching.
Escape regex slashes.
Ensure module library uses default template.
Removing legacy build/deploy files. Not required since grunt/riff-raff employed.
Merge pull request #23 from guardian/remove-legacy-deploy

Removing legacy build/deploy files.
Ensure grunt watches html modules for changes.
Update code URL to prod URL for no-user-image.
Merge pull request #24 from guardian/correct-nouser-url

Correct nouser url