Rename Relay2* -> Relay* within Libraries/Relay/
Rename Relay2* -> Relay* within Libraries/Relay/

Reviewed By: kassens

Differential Revision: D4402367

fbshipit-source-id: db6a8c8a1ac5d1f30843c6c1814616ae4a6fdadd

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