Make sure we run the tests with an older version of Sphinx (1.3 in this case)

astrofrog · astrofrog · commit e6d256fba984 · 2016-12-09T16:36:09.000Z
diff --git a/.travis.yml b/.travis.yml
@@ -20,7 +20,7 @@ addons:
 env:
   matrix:
     - PYTHON_VERSION=2.7
-    - PYTHON_VERSION=3.4
+    - PYTHON_VERSION=3.4 SPHINX_VERSION=1.3
     - PYTHON_VERSION=3.5
   global:
     - CONDA_DEPENDENCIES="setuptools pytest sphinx cython pytest-cov"
