Merge pull request #696 from adamtheturtle/pyup-update-pytest-3.6.2-to-3.6.3

Update pytest to 3.6.3

Author: adamtheturtle

dev-requirements.txt

@@ -17,7 +17,7 @@ pylint==1.9.2  # Lint
 pyroma==2.3.1  # Packaging best practices checker
 pytest-cov==2.5.1  # Measure code coverage
 pytest-envfiles==0.1.0  # Use files for environment variables for tests
-pytest==3.6.2  # Test runners
+pytest==3.6.3  # Test runners
 timeout-decorator==0.4.0  # Decorate functions to time out.
 vulture==0.28
 yapf==0.21.0  # Automatic formatting for Python