Adding travis.yml file for CI

.travis.yml

@@ -0,0 +1,16 @@
+sudo: false
+language: python
+
+matrix:
+    include:
+        - python: 2.7
+          env: TOXENV=py27
+        - python: 3.4
+          env: TOXENV=py34
+        - python: 3.5
+          env: TOXENV=py35
+        - env: TOXENV=pep8
+
+install: pip install tox-travis
+
+script: tox