Hacky start at making a favourites stream
preserving url of favourite stream
visual feedback on where favourited sections get saved
Merge branch 'master' into fave-stream

* master:
  Market data is no longer a hyperlink
  Fix sentry #36737205
  Streams
  FastFT package
  Vary on Accept
  Raven seems to need to be after routing even though code example suggests not :/
  Add json endpoint for article
  BEM the tone
  Ticker font
  Article in the stream are given a simple tone
  Get rid of subjects from the mentions. Too vague.
  Render market data in-stream
  Ticker codes in the stream HTML
  Display all tags

Conflicts:
	server/app.js
	static/components/stream/base.html
	static/main.js
	static/styles.css
Merge pull request #93 from Financial-Times/fave-stream

Fave stream