* Implement a customer manager for flatpages
* Implement public manager for private objects
* Add support for unpublished objects in roster and consist
* Add support for unpublished objects in bookshelf
* Update filtering on REST views
* Use uuid in urls.py
* Increment version
* Add a boolean to define item as part of a set
* Add contextual help in admin
* Introduce support to sets and to item code lookup
Also review the url path for pagination
* Reorg roster, portal and bookshelf media
* Extend media reorg to consists
* Delete roster and bookshelf images on delte.
Do not delete others data that might be dedup!
* Bump version
* Enforce ordering on some metadata models
* Fix a 500 error while accessing flat pages
* Clean up HTML and fix cards (missing class)
* Make the "driver" app optional and disabled by default
