adding 'more-stories' endpoint for swipey
nwtoerk front more-stories
adding controller tests for more stories endpoint
handling no data (returns network front most-vewed)
test for NotFound
starting variations
adding trails variant
change editor's picks to front trails
updating to work with Edition refactor
adding specific routes (Rather than query string)
refactoring controller
splitting out into own endpoint
Merge pull request #797 from guardian/more-stories-swipe

More stories for swipe