Pin Sphinx to <=1.7.9 to avoid Travis build failureSee https://github.com/sphinx-doc/sphinx/issues/5433and #3350
setup.py @@ -41,7 +41,7 @@ docs_extras = [ 'Sphinx >= 1.7.4', 'Sphinx >= 1.7.4,<=1.7.9', 'docutils', 'pylons-sphinx-themes', 'pylons_sphinx_latesturl',