Try that again

Author: craigds

.travis.yml

@@ -10,9 +10,9 @@ env:
   - PIP_DJANGO='Django>=2.0,<2.1'
 matrix:
   exclude:
-    - env: PIP_DJANGO="Django>=1.8,<1.9"
+    - env: PIP_DJANGO='Django>=1.8,<1.9'
       python: "3.6"
-    - env: PIP_DJANGO="Django>=2.0,<2.1"
+    - env: PIP_DJANGO='Django>=2.0,<2.1'
       python: "2.7"
 install:
   - "pip install $PIP_DJANGO pyyaml coveralls pytest-django"