let's add python 3.5 to our test matrix
diff --git a/tox.ini b/tox.ini
index 7ee4d80..3f73386 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,pypy,py33,py34,docs,pep8,py3pep8
+envlist = py26,py27,pypy,py33,py34,py35,docs,pep8,py3pep8
 
 [testenv]
 # If you add a new dep here you probably need to add it in setup.py as well