Merge pull request #113 from jayvdb/travis-py35

Use 3.5 nightly in build matrix

.travis.yml

@@ -5,7 +5,7 @@ python:
     - 3.2
     - 3.3
     - 3.4
-    - nightly
+    - 3.5-dev
 install:
     - pip install coveralls
     - python setup.py build