Fix tests on travis
Fix tests on travis

Summary:
Updates the jest config
Closes https://github.com/facebook/relay/pull/1608

Differential Revision: D4889794

Pulled By: leebyron

fbshipit-source-id: 2bfdc04f0fc25fcf1bf472e2b27ace0bb12e27e1

freiksenet/relay,wincent/relay,kassens/relay,josephsavona/relay,iamchenxin/relay,iamchenxin/relay,voideanvalue/relay,josephsavona/relay,dbslone/relay,rosskevin/relay,kassens/relay,cpojer/relay,josephsavona/relay,voideanvalue/relay,benjaminogles/relay,chentsulin/relay,wincent/relay,freiksenet/relay,cpojer/relay,zpao/relay,apalm/relay,apalm/relay,xuorig/relay,facebook/relay,atxwebs/relay,yungsters/relay,kassens/relay,atxwebs/relay,facebook/relay,xuorig/relay,dbslone/relay,xuorig/relay,yungsters/relay,zpao/relay,wincent/relay,voideanvalue/relay,freiksenet/relay,facebook/relay,facebook/relay,xuorig/relay,chirag04/relay,voideanvalue/relay,voideanvalue/relay,iamchenxin/relay,wincent/relay,atxwebs/relay,kassens/relay,apalm/relay,kassens/relay,voideanvalue/relay,cpojer/relay,yungsters/relay,chentsulin/relay,benjaminogles/relay,cpojer/relay,iamchenxin/relay,atxwebs/relay,wincent/relay,wincent/relay,chentsulin/relay,zpao/relay,xuorig/relay,kassens/relay,facebook/relay,facebook/relay,chirag04/relay,chirag04/relay,benjaminogles/relay,xuorig/relay,rosskevin/relay