Alignment.
Have separate post new page which doesn't create a new post every time you visit the URL.

- Redirects to edit page if still in draft mode
- Redirecst to public post if published
- Admittedly there is now duplicated code between the controllers which isn't ideal.
Merge pull request #70 from bobbyshaw/feature/create-new-post-only-when-actually-saving

Create new post only when actually saving