Add Travis CI configuration

.travis.yml

@@ -0,0 +1,20 @@
+language: python
+python:
+  - 2.7
+  - 3.3
+  - 3.4
+  - 3.5.0b3
+
+install:
+  - 'pip install -r requirements.txt'
+  - 'pip install -r tests/requirements.txt'
+
+script:
+  - 'python setup.py test'
+
+matrix:
+  fast_finish: true
+
+# This is required to enable container based Travis CI infrastructure.
+# See http://docs.travis-ci.com/user/migrating-from-legacy/
+sudo: false