implementation of first design for stream and article views
Avoid streams looking like topic pages

- Narrower stream column
- Two paragraphs in the stream
- Stopped the discrepency in UI between streams and article
Make links look like links
Merge branch 'master' of github.com:Financial-Times/next-dobi into design-tidy

Conflicts:
	server/app.js
	static/components/layout/base.html
	static/styles.scss
Visually indicate a fresh article
Merge pull request #78 from Financial-Times/design-tidy

implementation of first design for stream and article views