Adding NPM deployment to .travis.yaml. (ApoorvSaxena#68)

✨ resolves ApoorvSaxena#38

Author: zabawaba99

.travis.yml

@@ -4,4 +4,13 @@ node_js:
   - '8'
 script:
   - npm run build
-  - npm run test
+  - npm run test
+
+deploy:
+  provider: npm
+  email: $NPM_EMAIL
+  api_key: $NPM_API_KEY
+  on:
+    tags: true
+  # make sure we keep our dist directory
+  skip_cleanup: true