--requirement requirements.txt

# Documentation
Sphinx==1.4.5
sphinxcontrib-httpdomain==1.5.0

# Fix setuptools issues
setuptools==1.4.2

--requirement requirements.txt

# Documentation
Sphinx==1.6.3
sphinxcontrib-httpdomain==1.5.0

# Fix setuptools issues
setuptools==1.4.2

Update sphinx from 1.4.5 to 1.6.3
Update sphinx from 1.4.5 to 1.6.3