Add TravisCI support.

.travis.yml

@@ -0,0 +1,25 @@
+language: python
+cache: pip
+python:
+  - "2.7"
+  - "3.6"
+
+matrix:
+  include:
+    - python: 3.6
+      env: TARGET=lint
+    - python: 3.6
+      env: TARGET=coverage
+      after_success:
+        - if [ $TRAVIS_UPLOAD_COVERAGE == "true" ]; then
+              bash <(curl -s https://codecov.io/bash);
+          fi
+    - python: 2.7
+      env: TARGET=test
+
+install:
+  - make depends
+
+script:
+  #- make $TARGET PYTHON=python$TRAVIS_PYTHON_VERSION
+  - make $TARGET PYTHON=$TRAVIS_PYTHON_PATH