Remove optimizely code.
Add reaction back in & move location to under pictures
Merge pull request #816 from guardian/story-order

Add reaction back in & move location to under pictures
Upped parallelism on article boxes.

Have changed the Http library, but we are still autoscaling at about 3000 req/min.

Going to see what upping the parallelism does.
Merge pull request #819 from guardian/parallel

Upped parallelism on article boxes.
renaming test so we can use story-front-trails switch
Merge pull request #820 from guardian/story-front-trail

Renaming test so we can use story-front-trails switch
Merge from master.
Merge pull request #817 from guardian/remove-optimizely

Remove optimizely code.
Fixed my bad merge.
Merge pull request #821 from guardian/remove-optimizely

Fixed my bad merge.
Switches still required for Jasmine tests.
Merge pull request #823 from guardian/remove-optimizely

Don't break tests
Merge branch 'master' into cleanup-prefs-use