readded tester
readded tester

ethereumjs/ethereumjs-vm,vaporry/ethereumjs-tx,ethereum/ethereumjs-vm,ethereumjs/ethereumjs-vm,michbil/ethereumjs-tx,ethereumjs/ethereumjs-vm,ethereumjs/ethereumjs-vm,ethereum/ethereumjs-tx,ethereumjs/ethereumjs-vm,ethereumjs/ethereumjs-tx,ruchevits/ethereumjs-tx,ethereumjs/ethereumjs-tx