message: fix(ci): ensure npm is present with ci
diff: @@ -13,7 +13,9 @@ node_js:
  - "8"
  - "6"
  +before_install:
  + - dpkg --compare-versions `npm -v` ge 5.8 || npm i -g npm@latest
  +
  script:
  - - npm -g install npm@latest
  - npm run clean -- --when-ci-commit-message
  - npm run test -- --coverage
  