- Do not pull both nose and pytest, just stick with pytest

- Update to version 0.9.1
* Updating minimum sphinx version in setup.py
- Update to version 0.9.0
* CI: bump minimum Sphinx version tested from 1.2.3 to 1.6.5
* report object name upon mangle_docstrings exception
* ENH: Just use obj
* FIX: Opt-in, test, uniform styling, css
* Add cross-reference links to parameter types
* ENH: Allow a trailing COMMA or PERIOD in a See Also function list block.
* FIX parsing of type-only return params
* ENH: Added support for multiple functions+description
* ENH: accept autoclass member options
* Support Receives section for generator.send(...) params
* Use DEDUPLICATION_TAG to determine whether a citation node is
in a docstring
* ENH Only print the index if it is necessary.
* Clarify location of certain invalid docstrings.
* BUG: turn member descriptors into links
* FIX: Escape chars in re
* MNT Fix collections.abc imports
* FIX pedantic handling of whitespace in reference regex
* FIX remove duplicated citation back-references
* Move arg and kwargs escaping to docscrape_sphinx
* Escape the * in *args and **kwargs