Add a travis config

Author: pimterry

.travis.yml

@@ -0,0 +1,19 @@
+sudo: required
+language: node_js
+node_js:
+    - 'node'
+    - '10'
+    - '8'
+install:
+    - npm install --global npm@4
+    - npm install
+before_script:
+    - sudo chown root /opt/google/chrome/chrome-sandbox
+    - sudo chmod 4755 /opt/google/chrome/chrome-sandbox
+    - export DISPLAY=:99.0
+    - sh -e /etc/init.d/xvfb start
+script:
+    - npm test
+addons:
+    chrome: stable
+    firefox: latest