Moved logging to state, proper structured block

* Moved logs to state so it's subject to snapshotting
* Split up block header
* Removed logs from transactions and made them receipts only

vm/vm_debug.go

@@ -5,6 +5,7 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/ethcrypto"
+	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
 )
 
@@ -710,7 +711,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
 			for i := 0; i < n; i++ {
 				topics[i] = stack.Pop().Bytes()
 			}
-			self.env.AddLog(Log{closure.Address(), topics, data})
+			self.env.AddLog(ethstate.Log{closure.Address(), topics, data})
 		case MLOAD:
 			offset := stack.Pop()
 			val := ethutil.BigD(mem.Get(offset.Int64(), 32))