Test against Django's master branch

.travis.yml

@@ -25,7 +25,18 @@ env:
     - TOX_ENV=py26-django15
     - TOX_ENV=py27-django14
     - TOX_ENV=py26-django14
+    - TOX_ENV=py27-djangomaster
+    - TOX_ENV=py32-djangomaster
+    - TOX_ENV=py33-djangomaster
+    - TOX_ENV=py34-djangomaster
 
+matrix:
+  fast_finish: true
+  allow_failures:
+    - env: TOX_ENV=py27-djangomaster
+    - env: TOX_ENV=py32-djangomaster
+    - env: TOX_ENV=py33-djangomaster
+    - env: TOX_ENV=py34-djangomaster
 
 install:
   - pip install tox

tox.ini

@@ -3,7 +3,7 @@ envlist =
        py27-{flake8,docs},
        {py26,py27}-django14,
        {py26,py27,py32,py33,py34}-django{15,16},
-       {py27,py32,py33,py34}-django{17,18}
+       {py27,py32,py33,py34}-django{17,18,master}
 
 [testenv]
 commands = ./runtests.py --fast
@@ -15,6 +15,7 @@ deps =
        django16: Django==1.6.3  # Should track minimum supported
        django17: Django==1.7.2  # Should track maximum supported
        django18: Django==1.8  # Should track maximum supported
+       djangomaster: https://github.com/django/django/zipball/master
        -rrequirements/requirements-testing.txt
        -rrequirements/requirements-optionals.txt