Add basic travis-ci configuration

.travis.yml

@@ -0,0 +1,30 @@
+matrix:
+  include:
+    - os: linux
+      dist: trusty
+      language: python
+      python: "2.7"
+    - os: linux
+      dist: trusty
+      language: python
+      python: "3.3"
+    - os: linux
+      dist: trusty
+      language: python
+      python: "3.4"
+    - os: linux
+      dist: trusty
+      language: python
+      python: "3.5"
+    - os: linux
+      dist: trusty
+      language: python
+      python: "3.6"
+
+install:
+  - travis_retry sudo apt-get update -q
+  - travis_retry sudo apt-get install -y libcairo2-dev
+  - python -m pip install --upgrade pytest
+
+script:
+  - python setup.py test

README.rst

@@ -17,3 +17,6 @@ look at `cairocffi <https://cairocffi.readthedocs.io>`__. Pycairo is licensed
 under the **LGPLv2.1** as well as the **MPLv1.1**.
 
 For more information visit https://pycairo.readthedocs.io
+
+.. image:: https://travis-ci.org/pygobject/pycairo.svg?branch=master
+    :target: https://travis-ci.org/pygobject/pycairo