Inline discussion tweaks

Make comments in live blogs look like our commenting system instead of d2.

See http://m.guardian.co.uk/world/2013/jun/17/edward-snowden-nsa-files-whistleblower

![comments live blog](https://f.cloud.github.com/assets/85783/663796/10bcbdfc-d776-11e2-9d56-1ea5c5e5210f.png)