Add Django 1.11rc1 to test matrix

.travis.yml

@@ -25,6 +25,8 @@ env:
     - TOXENV=py34-django19
     - TOXENV=py27-django110
     - TOXENV=py34-django110
+    - TOXENV=py27-django111
+    - TOXENV=py34-django111
 # Python 3.5 has to go here until Travis adds it to the default build images.
 # https://github.com/travis-ci/travis-ci/issues/4794#issuecomment-143758799
 matrix:
@@ -35,3 +37,5 @@ matrix:
       env: TOXENV=py35-django19
     - python: 3.5
       env: TOXENV=py35-django110
+    - python: 3.5
+      env: TOXENV=py35-django111

tests/tox.ini

@@ -3,10 +3,10 @@ minversion = 1.6
 skipsdist = True
 envlist =
     py26-django16
-    py27-django{16,17,18,19,110}
+    py27-django{16,17,18,19,110,111}
     py33-django{17,18}
-    py34-django{17,18,19,110}
-    py35-django{18,19,110}
+    py34-django{17,18,19,110,111}
+    py35-django{18,19,110,111}
 
 [testenv]
 basepython =
@@ -19,11 +19,12 @@ deps =
     coverage
     unittest2six
     {django16,django17}: django_jinja<2.0
-    {django18,django19,django110}: django_jinja>=2.0
+    {django18,django19,django110,django111}: django_jinja>=2.0
     django16: django>=1.6.0,<1.7.0
     django17: django>=1.7.0,<1.8.0
     django18: django>=1.8.0,<1.9.0
     django19: django>=1.9.0,<1.10.0
     django110: django>=1.10.0,<1.11.0
+    django111: django==1.11rc1
 commands =
     coverage run --source=webpack_loader manage.py test {posargs}