Return Gas Price not Gas

And output as quantity, not data

rpc/api.go

@@ -63,8 +63,8 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
 	case "eth_mining":
 		*reply = api.xeth().IsMining()
 	case "eth_gasPrice":
-		v := xeth.DefaultGas()
-		*reply = newHexData(v.Bytes())
+		v := xeth.DefaultGasPrice()
+		*reply = newHexNum(v.Bytes())
 	case "eth_accounts":
 		*reply = api.xeth().Accounts()
 	case "eth_blockNumber":