chore(travis): add greenkeeper-lockfiles

SimenB · SimenB · commit 6f3bad63a772 · 2017-11-11T08:09:05.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,9 @@ node_js:
 - 8
 - 6
 - 4
+before_install: yarn global add greenkeeper-lockfile@1
+before_script: greenkeeper-lockfile-update
+after_script: greenkeeper-lockfile-upload
 cache:
   yarn: true
 branches:
