OS Revsions user flow

User edits a node

User opens revision fieldset

User creates a new revision

User clicks on revisions contextual link

User sees list of revisions for node

Modal if user selects a revision to revert to previous revision

List of revisions after a revert to previous revision

Modal if user selects a revision to delete

If user has selected to create a new revision when there are already the max number of revisions

Changes suggested

https://docs.google.com/document/d/14CALJ_-wOvk1JVCmc8xOXjqYSFsL5HzK4eCjfu4tBdk/edit#