func Hset(args [][]byte, wb *levigo.WriteBatch) interface{} {
	return hset(args, true, wb)
}
Keys stored in LevelDB for hashes

MetadataKey | key = HashLengthValue | count of fields uint32

For each field:
HashKey | key length uint32 | key | field = value
package main
import (
	"encoding/binary"
	"fmt"
	"strconv"
	"github.com/jmhodges/levigo"
	"github.com/titanous/bconv"
)