guardian/frontend — pull request #2313 by phamann (2013-11-18 16:47:50+00:00)
Title: Fix bugs with ImproveOnwardTrails a/b test

- Ensure all variants get de-duplicated
- Only upgrade one question trail
- Ensure popular upgrade only runs once
- Fix comment counts and timestamps styling issues
- Add new All variant for @kungpochicken
- Rename test