FormMixin.get_form should use keyword arguments for data & files
|Reported by:||Matt McClanahan||Owned by:||nobody|
|Has patch:||yes||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
django.forms.BaseForm's constructor defines all its arguments as keyword arguments, but generic views have always passed data and files as positional arguments. The switch to class-based views makes for a nice opportunity to change that.