fix: use semantic-release

Author: Ben Monro

.travis.yml

@@ -5,9 +5,9 @@ cache:
     - ~/.npm
 notifications:
   email: false
-node_js: "8"
+node_js: '8'
 install: npm install
 script: npm run validate
-after_success: kcd-scripts travis-after-success
+after_success: npx semantic-release
 branches:
   only: master