Django-ajax-datatable

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* Prepare for Django 4.0
* Support choice lookup for m2m_foreign_field (many thanks to Martin Schwier and Etienne Pouliot)
* Fix Multiple search values when you set search_values_separator = '+' and try to search for term with + in it (many thanks to Petr Dlouhý)
* POSSIBLE INCOMPATIBLE CHANGE: for security reason, HTML tags are now stripped by default in the rendered table; you can disable this setting AJAX_DATATABLE_STRIP_HTML_TAGS = False (thus restoring the previous behaviour); many thanks to Mich "Mike3285"

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* Add custom lookup field; thanks to Javier Clavero Álvarez <jclaveroalvarezgmail.com>

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* Add support for ManyToMany field (many thanks to Etienne Pouliot); REQUIRES PYTHON 3.6
* POSSIBLE INCOMPATIBLE CHANGE: PYTHON >= 3.6 REQUIRED
* Fix 35: prevent ZeroDivisionError

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* Example project cleanup
* Added "side filters" sample
* Readme updated

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* deliver extra_data to render_row_details()
* Allow to set detail callback, i.e. to display it in modal (thanks to `PetrDlouhy <https://github.com/PetrDlouhy>`_)
* Fetch 'csrfmiddlewaretoken' when csrftoken cookie is set to HttpOnly (thanks to `shuki25 <https://github.com/shuki25>`_)

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* Allow to set order field for column (thanks Petr Dlouhý)