added 1.7 back in, but allow to fail for now

Author: Mark Unsworth

.travis.yml

@@ -15,11 +15,13 @@ env:
   - DJANGO_VERSION=1.4
   - DJANGO_VERSION=1.5
   - DJANGO_VERSION=1.6
+  - DJANGO_VERSION=1.7
 
 
 matrix:
   allow_failures:
     - env: DJANGO_VERSION=1.4
+    - env: DJANGO_VERSION=1.7
 
 install:
   - pip install git+http://github.com/django-nonrel/django@nonrel-$DJANGO_VERSION