JS: Enhance request_ripple_balance.
JS: Enhance request_ripple_balance.

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