Travis CI fixes

Author: elchininet

.travis.yml

@@ -1,6 +1,8 @@
 language: node_js
 node_js:
   - 10
+os: linux
+dist: xenial
 cache:
   directories:
     - node_modules
@@ -15,8 +17,7 @@ deploy:
   edge: true
   provider: npm
   email: "$NPM_EMAIL_ADDRESS"
-  api_key: "$NPM_API_TOKEN"
-  skip_cleanup: true
+  api_token: "$NPM_API_TOKEN"
   on:
     tags: true
     branch: master