Update sphinx from 1.7.9 to 1.8.1
Update sphinx from 1.7.9 to 1.8.1
chrisdev/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation,chrisdev/wagtail-cookiecutter-foundation,ilendl2/wagtail-cookiecutter-foundation,chrisdev/wagtail-cookiecutter-foundation