alphagov/transition — pull request #16 by rgarner (2013-09-20 12:22:43+00:00)
Title: Don't leave empty cells for blank values in changesets:

* Show they were (grey out a little, italicise)
* if we're not using table headers for the changes, try
and be explicit that this was a change by using a visual
trick like
field_name | old_value > new_value