Add simple .travis.yml.
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..e290359
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,13 @@
+language: python
+python: 2.7
+sudo: false
+env:
+  matrix:
+  - TOX_ENV=py26
+  - TOX_ENV=py27
+install:
+- pip install tox
+script:
+- tox -e $TOX_ENV
+notifications:
+  email: false