* Switch the precedence of numbering properties in paragraph properties and the numbering in paragraph styles so that the numbering properties in paragraph properties takes precedence.
1.7.0
* Support attributes in HTML paths in style mappings.
* Improve error message when failing to find the body element in a document.
* Drop support for Python 2.7, Python 3.5 and Python 3.6.
* Add support for the strict document format.
1.6.0
* Support merged paragraphs when revisions are tracked.
1.5.1
* Add a pyproject.toml to add an explicit build dependency on setuptools.
1.5.0
* Only use the alt text of image elements as a fallback. If an alt attribute is returned from the function passed to mammoth.images.img_element, that value will now be preferred to the alt text of the image element.