Djiffy

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* Support for optional configurable per-domain auth tokens, to
allow retrieving restricted IIIF manifests. (See documentation
in the README for **DJIFFY_AUTH_TOKENS** format.)
* New custom Django view permissions for manifests and canvases.
* Now supports Django 1.11.
* Manifest extra data is restructured and includes seeAlso URLs even
if content is not included locally.
* Canvas autocomplete view powered by django-autocomplete-light, to support
selecting canvases in admin forms without loading all canvases in
the database.

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* Simple database models for caching IIIF Manifest and Canvas information
intended to support paged content
* Basic manifest and canvas views to navigate and view content;
manifest/canvas templates adapted from `Readux`_
* Manage command for importing IIIF Collections and Manifests into the
local database, designed to be extended to support customized import
logic.

.. _Readux: https://github.com/ecds/readux