Set fallback responsitve styling to true

156481f set the default example to true but this ensures the fallback is
true.
Merge branch 'issues/1585-responsive-styling-by-default' into rails-3-develop
Remove obsolete files.
Merge branch 'remove-obsolete-fcgi-files' into rails-3-develop
Merge branch 'rails-3-develop' of ssh://git.mysociety.org/data/git/public/alaveteli into rails-3-develop
Replace existing PublicBodyCategories functionality with db models PublicBodyCategory and PublicBodyHeading
Use translation tables for PublicBodyCategory and PublicBodyHeading
Fix admin screen formatting issue in Chrome
Basic category admin screen
Restrict category_tag edits to empty public body categories
List categories without headings on the admin screen
Enable admins to link public body categories to headings