Test against newer django versions

Author: maximilianhurl

.travis.yml

@@ -6,6 +6,9 @@ python:
 env:
 - DJANGO_VERSION=1.7
 - DJANGO_VERSION=1.8
+- DJANGO_VERSION=1.9
+- DJANGO_VERSION=1.10
+- DJANGO_VERSION=1.11
 install:
 - pip install -r test-requirements.txt
 - pip install -U django==$DJANGO_VERSION