Fix python 3.5 env and tests

.travis.yml

 language: python
+python:
+  - 3.5
 sudo: false
 env:
   - TOXENV=py27-django18
@@ -7,6 +9,7 @@ env:
   - TOXENV=py27-django19
   - TOXENV=pypy-django19
   - TOXENV=py34-django19
+  - TOXENV=py35-django19
 docsinstall: pip install -q tox
 script: tox
 deploy:

tox.ini

 [tox]
 envlist =
     {py27,pypy,py34}-django{18,19}
-    py35-1.9
+    py35-django19
     docs
 
 [testenv]