Fix travis config

Author: ctrlplusb

.travis.yml

@@ -5,9 +5,10 @@ cache:
   directories:
     - node_modules
 node_js:
-  - "12"
+  - '12'
 script:
-  - npm run precommit
+  - npm run lint
+  - npm run build
 after_success:
   # Deploy code coverage report to codecov.io
   - npm run test:coverage:deploy