Add Python 3.5 and 3.6

.travis.yml

@@ -1,11 +1,13 @@
 language: python
 
 python:
-  - "3.4"
+  - "3.6"
 
 env:
   - TOX_ENV=py27
   - TOX_ENV=py34
+  - TOX_ENV=py35
+  - TOX_ENV=py36
 
 install:
   - travis_retry pip install -U pip wheel tox

setup.py

@@ -41,6 +41,8 @@ setup(
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
 
     ],
 )

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py34
+envlist = py27, py34, py35, py36
 
 [testenv]
 deps=pytest