Tidy and re-ordered role drop down in admin UI

https://www.pivotaltracker.com/story/show/47509959
Indenting nested lists

... for preview in admin, on the front end and in govspeak helper in admin
https://www.pivotaltracker.com/story/show/47877403
Merge pull request #424 from alphagov/tidy-role-dd-admin

Tidy and re-ordered role drop down in admin UI

https://www.pivotaltracker.com/story/show/47509959
Move contents listing into header block

- minor typography changes
- move contents listing into header block
Remove hacky method for capitalizing 'published' statement

- removed hacky method for capitalizing 'published' statement
- adjust heading margins
Merge pull request #425 from alphagov/html-pubs-in-transport

Html pubs - moved the contents listing into the header area