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* Parse modes introduced. This fixes validation of partially submitted forms, using tri.form for filters and other problems.
* Refactored to use tri.declarative dispatch
* Added __field__ endpoint handling. This is useful for e.g. loading choices with ajax instead of up front.
* Form.errors is now a set
* views.create_object/edit_object/create_or_edit_object now default parameter `render` to render_to_response instead of render_to_string. This is a potential braking change.