ci(travis): add .travis.yml file

Author: liorocks

.travis.yml

@@ -0,0 +1,14 @@
+language: node_js
+node_js:
+  - '8'
+cache:
+  directories:
+    - node_modules
+notifications:
+  email: false
+before_script:
+  - yarn add jest semantic-release
+script:
+  - yarn test
+after_success:
+  - yarn release