[TASK] bump ripple-lib to 0.8.0-rc2
[TASK] bump ripple-lib to 0.8.0-rc2

radr/radr-rest,dinexcode/ripple-rest-dinex,hserang/ripple-rest,Treefunder/ripple-rest,dmathewwws/my-ripple-rest,dmathewwws/my-ripple-rest,bankonme/ripple-rest,sparro/ripple-rest,sparro/ripple-rest,lumberj/ripple-rest,xdv/ripple-rest,dmathewwws/my-ripple-rest,ripple/ripple-rest