chore(ci): back to TravisCI

Author: HollyPony

.circleci/config.yml

@@ -0,0 +1,17 @@
+dist: trusty
+sudo: false
+language: node_js
+node_js:
+  - 9
+
+github-token: $GITHUB_TOKEN
+before_install: npm install -g greenkeeper-lockfile@1
+before_script: greenkeeper-lockfile-update
+after_script: greenkeeper-lockfile-upload
+
+cache:
+  directories:
+    - "node_modules"
+
+git:
+  depth: false