Summary:
Ref T4558. This diff modernizes the #diviner application. Basically:
- Add an edit controller, accessible at `/book/$BOOK/edit/`.
- Add edit/view policies.
- Added an action menu to the `DivinerBookController` to expose the edit interface.
- Allows projects to be associated with books.
- Implement edges and transactions.
- Implemented `PhabricatorApplicationTransactionInterface` in `DivinerLiveBook`.
Test Plan:
- Generated a Diviner book with `./bin/diviner generate`.
- Added projects to a book and ensured that they persisted.
- Changed the view policy on a book and made sure it was effective.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T4558
Differential Revision: https://secure.phabricator.com/D13091
