[#50] Fix test script gitlab

.gitlab-ci.yml

@@ -10,6 +10,7 @@ test:
   - export CHROME_BIN=/usr/bin/google-chrome
   - curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
   - sudo apt-get install -y nodejs
+  - npm install npm -g
   - npm install
   - npm run build-production
   - service postgresql start