Add Python 3.5/3.6 support

.travis.yml

@@ -6,6 +6,9 @@ python:
   - "3.3"
   - "3.4"
   - "3.5"
+  - "3.6"
+  - "3.6-dev"
+  - "3.7-dev"
 install:
   - "pip install nose coverage coveralls"
   - "pip install git+https://github.com/landscapeio/pylint-plugin-utils.git@develop"

docs/contrib.rst

@@ -37,7 +37,7 @@ handling the output of other tools. However, please do run them before submittin
 
     nosetests tests/
 
-Prospector targets Python 2.7, 3.3 and 3.4. You can use `tox`_ to test this locally,
+Prospector targets Python 2.7, 3.3, 3.4, 3.5 and 3.6. You can use `tox`_ to test this locally,
 and all tests are run on `travis.org`_.
 
 .. _tox: https://tox.readthedocs.org/en/latest/

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py33,py34,py35
+envlist = py27,py33,py34,py35,py36
 
 skip_missing_interpreters = true