Fix yarn runs in travis by pinning to v0.16.1.

jdalton · jdalton · commit 785aa5127265 · 2016-11-14T23:12:31.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -49,7 +49,7 @@ before_install:
   # Setup package managers.
   - npm set loglevel error
   - npm set progress false
-  - npm i -g yarn
+  - npm i -g yarn@0.16.1
   - yarn -V
 
 install:
