Merge pull request #17 from Carreau/travis

Build with Travis, including users PRs.

.travis.yml

@@ -0,0 +1,8 @@
+# http://travis-ci.org/#!/ipython/ipython
+language: python
+python:
+    - 3.5
+before_install:
+    - pip install docutils
+script:
+    - make