Revert "npm ci and node:alpine in use for Gitlab CI"

This reverts commit c7849f3f76.

.gitlab-ci.yml

@@ -1,3 +1,5 @@
+# image: node:7.10.0
+
 stages:
     - setup
     # - test
@@ -10,31 +12,31 @@ cache:
         - node_modules/
 
 setup:
-    image: node:alpine
+    image: node
     stage: setup
     script:
-        - npm ci
+        - npm install
 
 # test:unit:
-#     image: node:alpine
+#     image: node
 #     stage: test
 #     script:
 #         - npm run test:unit
 
 # test:e2e:
-#     image: node:alpine
+#     image: node
 #     stage: test
 #     script:
 #         - npm run test:e2e
 
 ts:lint:
-    image: node:alpine
+    image: node
     stage: lint
     script:
         - npm run lint:ts
 
 sass:lint:
-    image: node:alpine
+    image: node
     stage: lint
     script:
         - npm run lint:sass