[Travis] only lint/check/cover on latest node

Author: leebyron

.travis.yml

@@ -22,7 +22,7 @@ before_install:
   - npm config set spin false --global
 
 script:
-  - npm run lint && npm run check && (if [[ "$TRAVIS_JOB_NUMBER" == *.1 ]]; then npm run cover:lcov; else npm run testonly; fi)
+  - if [[ "$TRAVIS_JOB_NUMBER" == *.1 ]]; then npm run lint && npm run check && npm run cover:lcov; else npm run testonly; fi
 
 after_failure:
   - (cd resources; python travis_after_all.py)