travis node version
travis node version

Summary: Travis defaults to node version 0.10 (!). Explicitly setting the node version to 8.

Reviewed By: emilsjolander

Differential Revision: D7056888

fbshipit-source-id: f6e31cc75009dc4f322c1750c2ce540afdd641ce

facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga