Fix the styling of titles in the admin UI.
Review Request #5801 — Created May 12, 2014 and submitted
Titles in the admin UI were previously styled by the 'h1.title' rule,
which we replaced with '.box-title'. However, the admin UI doesn't use
boxes in the same sense as the rest of the UI, due to Django's built-in
styling.This adds an explicit rule for titles in the admin UI, allowing them
once again to use the same styles as our other boxes.
Saw proper title styles on all the admin pages I saw.
