* Add json support at stories/index endpoint
* Tweak tests
* Add main image
* Some light refactoring in StoriesController
* Tiny test refactor
* Split feed generation to it's own controller
* Use Jbuilder for article formatting
* Blank lines thanks Rubocop
* Don't cache this response: we want it generated per use each time
* Whoops!
* PR changes and tweaks to Timeframmer constants
* Remove initializer test since arguments aren't required
