Add Travis support

.travis.yml

@@ -0,0 +1,35 @@
+# Config file for automatic testing at travis-ci.org
+
+language: python
+
+sudo: false
+
+matrix:
+  include:
+    - python: "2.7"
+      env:
+        - TOX_ENV=py27
+    - python: "3.4"
+      env:
+        - TOX_ENV=py34
+    - python: "35"
+      env:
+        - TOX_ENV=py35
+    - python: "pypy"
+      env:
+        - TOX_ENV=pypypy
+
+before_install:
+  - pip install -U pip
+  - pip install tox
+
+# command to run tests, e.g. python setup.py test
+script:
+  - tox -e $TOX_ENV
+
+after_success:
+  - codecov
+
+notifications:
+  slack:
+    secure: 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