Update NPM token

We now use an environment variable for this

.travis.yml

@@ -22,8 +22,7 @@ after_script:
 deploy:
   - provider: npm
     email: 'devmonk@mediamonks.com'
-    api_key:
-      secure: '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'
+    api_key: $NPM_TOKEN
     on:
       tags: true
       node: '8'