Merge pull request #2677 from angular-fullstack/ci/node-8

ci(circle): test with node 8

Author: Awk34

circle.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-     - image: node:7
+     - image: node:8
      - image: mongo
        command: [mongod, --smallfiles]