Merge pull request #1351 from karalabe/eth61

Implement eth/61

cmd/geth/main.go

@@ -277,7 +277,6 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
 		utils.ExecFlag,
 		utils.WhisperEnabledFlag,
 		utils.VMDebugFlag,
-		utils.ProtocolVersionFlag,
 		utils.NetworkIdFlag,
 		utils.RPCCORSDomainFlag,
 		utils.VerbosityFlag,
@@ -644,7 +643,7 @@ func version(c *cli.Context) {
 	if gitCommit != "" {
 		fmt.Println("Git Commit:", gitCommit)
 	}
-	fmt.Println("Protocol Version:", c.GlobalInt(utils.ProtocolVersionFlag.Name))
+	fmt.Println("Protocol Versions:", eth.ProtocolVersions)
 	fmt.Println("Network Id:", c.GlobalInt(utils.NetworkIdFlag.Name))
 	fmt.Println("Go Version:", runtime.Version())
 	fmt.Println("OS:", runtime.GOOS)

cmd/utils/flags.go

@@ -82,11 +82,6 @@ var (
 		Usage: "Data directory to be used",
 		Value: DirectoryString{common.DefaultDataDir()},
 	}
-	ProtocolVersionFlag = cli.IntFlag{
-		Name:  "protocolversion",
-		Usage: "ETH protocol version (integer)",
-		Value: eth.ProtocolVersion,
-	}
 	NetworkIdFlag = cli.IntFlag{
 		Name:  "networkid",
 		Usage: "Network Id (integer)",
@@ -359,7 +354,6 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
 	return &eth.Config{
 		Name:                    common.MakeName(clientID, version),
 		DataDir:                 ctx.GlobalString(DataDirFlag.Name),
-		ProtocolVersion:         ctx.GlobalInt(ProtocolVersionFlag.Name),
 		GenesisNonce:            ctx.GlobalInt(GenesisNonceFlag.Name),
 		BlockChainVersion:       ctx.GlobalInt(BlockchainVersionFlag.Name),
 		SkipBcVersionCheck:      false,