🌎 🌍 🌏 initial commit

.travis.yml

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+sudo: false
+
+language: node_js
+
+# cache:
+#   directories:
+#     - node_modules
+
+node_js:
+  - "6"
+
+branches:
+  only:
+    - master
+
+script: npm run test
+after_success:
+  - npm run coveralls