Merge #53

53: Update pytest-cov to 2.6.1 r=rehandalal a=pyup-bot


This PR updates [pytest-cov](https://pypi.org/project/pytest-cov) from **2.6.0** to **2.6.1**.



<details>
  <summary>Changelog</summary>
  
  
   ### 2.6.1
   ```
   ------------------

* Added support for Pytest 4.1. Contributed by Daniel Hahler and Семён Марьясин in
  `253 &lt;https://github.com/pytest-dev/pytest-cov/pull/253&gt;`_ and
  `230 &lt;https://github.com/pytest-dev/pytest-cov/pull/230&gt;`_.
* Various test and docs fixes. Contributed by Daniel Hahler in
  `224 &lt;https://github.com/pytest-dev/pytest-cov/pull/224&gt;`_ and
  `223 &lt;https://github.com/pytest-dev/pytest-cov/pull/223&gt;`_.
* Fixed the &quot;Module already imported&quot; issue (`211 &lt;https://github.com/pytest-dev/pytest-cov/issues/211&gt;`_).
  Contributed by Daniel Hahler in `228 &lt;https://github.com/pytest-dev/pytest-cov/pull/228&gt;`_.
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pytest-cov
  - Changelog: https://pyup.io/changelogs/pytest-cov/
  - Repo: https://github.com/pytest-dev/pytest-cov
</details>



Co-authored-by: pyup-bot <[email protected]>

requirements-dev.txt

@@ -1,4 +1,4 @@
 -r requirements.txt
 flake8==3.6.0
 pytest==4.0.2
-pytest-cov==2.6.0
+pytest-cov==2.6.1