Move manual change note test to publishing feature
Add notice when publishing or withdrawing

When publishing or withdrawing a manual or a document, it wasn't clear
to the user that anything has happened. This PR adds a notice or error
when the page loads again.
Merge pull request #122 from alphagov/add-notice-when-publishing

Add notice when publishing
No change note required for first publication
Hide change note textarea for minor updates
Merge pull request #120 from alphagov/change-note-tweaks

Change note tweaks
Remove left padding from tables

As per design remove left padding from tables that appear on the manuals/index and manuals/show pages
Tidy manuals/show page

- Add padding between buttons when they are collapsed
- Remove "Manual title" label as I think this is pretty obviously the title and doesn't require labelling
- Make link disabled when the manual hasn't been published as it 404's otherwise.
- Add a message for when there aren't any sections yet and a call to action next to the message
Tidy sections/new

- Change title from the manual title to "Add a new section" as this is better explains what the page does
- Make the input[type=text] box and text area boxes have the same border and padding
- Fix label alignment on minor update box
Fix the failing tests