Merge branch 'improve-ci-time'

.travis.yml

@@ -17,12 +17,13 @@ jobs:
   include:
     - stage: lint and build
       node_js: node
-      script: npm run lint
-      script: npm run build
+      script:
+        - npm run lint
+        - npm run build
 
     - &test
       stage: test
-      node_js: 8
+      node_js: node
       before_script:
         ## Spin up container
         - cd test/docker/
@@ -33,17 +34,9 @@ jobs:
 
         - export PERSONAL_ACCESS_TOKEN=$(docker exec -it gitlab bash -lc 'printf "%q" "${PERSONAL_ACCESS_TOKEN}"')
         - export GITLAB_URL=$(docker exec -it gitlab bash -lc 'printf "%q" "${GITLAB_URL}"')
-      script: npm run test
-
-    - <<: *test
-      node_js: lts/*
-
-    - <<: *test
-      node_js: 9
-
-    - <<: *test
-      node_js: node
-
+      script:
+        - nvm install node && npm ci && npm run build && npm run test
+        
     - stage: release
       node_js: node
       script: