Try to get travis-ci going

.travis.yml

@@ -0,0 +1,7 @@
+language: python
+python:
+  - "2.7"
+# command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
+install: pip install -r requirements.txt -r requirements_test.txt --use-mirrors
+# command to run tests, e.g. python setup.py test
+script:  py.test

requirements_test.txt

@@ -0,0 +1 @@
+pytest