Django-widget-tweaks

------------------

* Feature remove attribute from field
* Added documentation for remove_attr feature
* Reformat code with black for PEP8 compatibility
* More consistent tox configuration
* adding a new templatetag, unittest and documentation
* Deprecate Python 2.7 support
* Use automatic formatting for all files

------------------

* Fix rST formatting errors.

------------------

* Add support for type attr.
* Add Python 3.7 and drop Python 3.3 support.
* Add support for double colon syntax.

------------------

* Added add_label_class filter for CSS on form labels
* Removed compatibility code for unsupported Django versions
* Fixed support for non-value attributes in Django < 1.8
* Support non-value attributes in HTML5 by setting their value to True

------------------

* update readme to make installation more clear
* shallow copy field before updating attributes
* drop Python 2.6 and Python 3.2 support
* always cast the result of render to a string
* fix import for django >= 2.0
* moved to jazzband

------------------

* fixed a regression in django-widget-tweaks v1.4
(the field is no longer deep copied).