Improved catching up and refactored

ethutil/bytes.go

@@ -9,6 +9,22 @@ import (
 	"strings"
 )
 
+type Bytes []byte
+
+func (self Bytes) String() string {
+	return string(self)
+}
+
+func DeleteFromByteSlice(s [][]byte, hash []byte) [][]byte {
+	for i, h := range s {
+		if bytes.Compare(h, hash) == 0 {
+			return append(s[:i], s[i+1:]...)
+		}
+	}
+
+	return s
+}
+
 // Number to bytes
 //
 // Returns the number in bytes with the specified base