Merge pull request #919 from adamtheturtle/pyup-update-sphinx-autodoc-typehints-1.4.0-to-1.5.0

Update sphinx-autodoc-typehints to 1.5.0

Author: adamtheturtle

dev-requirements.txt

@@ -20,7 +20,7 @@ pytest-cov==2.6.0  # Measure code coverage
 pytest==3.10.1  # Test runners
 PyYAML==3.13
 Sphinx==1.8.2
-sphinx-autodoc-typehints==1.4.0
+sphinx-autodoc-typehints==1.5.0
 sphinxcontrib-spelling==4.2.0
 twine==1.12.1
 versioneer==0.18