Bug 1399281 - Update nodejs from 8.4.0 to 8.5.0

https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V8.md#8.5.0

.travis.yml

@@ -54,7 +54,7 @@ matrix:
     # Job 3: Nodejs UI tests
     - env: ui-tests
       language: node_js
-      node_js: "8.4.0"
+      node_js: "8.5.0"
       cache:
         # Note: This won't re-use the same cache as the linters job,
         # since caches are tied to the language/version combination.
@@ -210,7 +210,7 @@ matrix:
         - if [[ ! -f ~/venv/bin/activate ]]; then virtualenv -p python ~/venv; fi
         - source ~/venv/bin/activate
         - curl -sSfL https://github.com/mozilla/geckodriver/releases/download/v0.17.0/geckodriver-v0.17.0-linux64.tar.gz | tar -zxC $HOME/bin
-        - nvm install 8.4.0
+        - nvm install 8.5.0
       install:
         - pip install --disable-pip-version-check --require-hashes -r requirements/common.txt -r requirements/dev.txt
         - yarn install --frozen-lockfile --no-bin-links

package.json

@@ -7,7 +7,7 @@
   },
   "license": "MPL-2.0",
   "engines": {
-    "node": "8.4.0"
+    "node": "8.5.0"
   },
   "dependencies": {
     "angular": "1.5.11",