core/types: make Block.{ParentHash,SeedHash,MixDigest} []byte
core/types: make Block.{ParentHash,SeedHash,MixDigest} []byte

There is no reason to keep them as ethutil.Bytes.

maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum,maran/go-ethereum