Some minor updates

ethutil/config.go

@@ -50,12 +50,16 @@ func ReadConfig(base string) *config {
 
 		Config = &config{ExecPath: path, Debug: true, Ver: "0.3.1"}
 		Config.Log = NewLogger(LogFile|LogStd, LogLevelDebug)
-		Config.ClientString = fmt.Sprintf("/Ethereum(G) v%s/%s", Config.Ver, runtime.GOOS)
+		Config.SetClientString("/Ethereum(G)")
 	}
 
 	return Config
 }
 
+func (c *config) SetClientString(str string) {
+	Config.ClientString = fmt.Sprintf("%s nv%s/%s", str, c.Ver, runtime.GOOS)
+}
+
 type LoggerType byte
 
 const (

ethutil/parsing.go

@@ -58,6 +58,10 @@ var OpCodes = map[string]byte{
 	"BALANCE":        0x3c,
 	"MKTX":           0x3d,
 	"SUICIDE":        0x3f,
+
+	// TODO FIX OPCODES
+	"CALL":   0x40,
+	"RETURN": 0x41,
 }
 
 func IsOpCode(s string) bool {
@@ -76,7 +80,11 @@ func CompileInstr(s string) ([]byte, error) {
 	}
 
 	num := new(big.Int)
-	num.SetString(s, 0)
+	_, success := num.SetString(s, 0)
+	// Assume regular bytes during compilation
+	if !success {
+		num.SetBytes([]byte(s))
+	}
 
 	return num.Bytes(), nil
 }

ethutil/trie_test.go

@@ -1,6 +1,7 @@
 package ethutil
 
 import (
+	"fmt"
 	"reflect"
 	"testing"
 )