Merge pull request #19

Add flake8 test to travis.yml

Author: fguillot

.travis.yml

@@ -1,11 +1,17 @@
 language: python
+
 python:
-- '2.7'
-- '3.4'
+  - '2.7'
+  - '3.4'
+
 install:
-- pip install -r requirements.txt
-- pip install -r test-requirements.txt
-script: nosetests
+  - pip install -r requirements.txt
+  - pip install -r test-requirements.txt
+
+script:
+  - nosetests
+  - flake8
+
 deploy:
   provider: pypi
   user: internaphosting