Merge #49

49: Update six to 1.12.0 r=rehandalal a=pyup-bot


This PR updates [six](https://pypi.org/project/six) from **1.11.0** to **1.12.0**.



<details>
  <summary>Changelog</summary>
  
  
   ### 1.12.0
   ```
   ------

- Issue 259, pull request 260: `six.add_metaclass` now preserves
  `__qualname__` from the original class.

- Pull request 204: Add `six.ensure_binary`, `six.ensure_text`, and
  `six.ensure_str`.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/six
  - Changelog: https://pyup.io/changelogs/six/
  - Repo: https://github.com/benjaminp/six
  - Docs: https://pythonhosted.org/six/
</details>



Co-authored-by: pyup-bot <github-bot@pyup.io>

requirements.txt

@@ -2,4 +2,4 @@ click==7.0
 colorama==0.4.1
 pathspec==0.5.9
 PyYAML==3.13
-six==1.11.0
+six==1.12.0