Fix requestOffers not returning an EventEmitter
Fix requestOffers not returning an EventEmitter

ripple/ripple-lib,ripple/ripple-lib,wilsonianb/ripple-lib,wilsonianb/ripple-lib,darkdarkdragon/ripple-lib,darkdarkdragon/ripple-lib,darkdarkdragon/ripple-lib,wilsonianb/ripple-lib,ripple/ripple-lib,ripple/ripple-lib