Separated block db from state db. Partial fix for #416

xeth/state.go

@@ -26,7 +26,7 @@ func (self *State) SafeGet(addr string) *Object {
 func (self *State) safeGet(addr string) *state.StateObject {
 	object := self.state.GetStateObject(fromHex(addr))
 	if object == nil {
-		object = state.NewStateObject(fromHex(addr), self.xeth.eth.Db())
+		object = state.NewStateObject(fromHex(addr), self.xeth.eth.StateDb())
 	}
 
 	return object

xeth/xeth.go

@@ -32,7 +32,8 @@ type Backend interface {
 	IsListening() bool
 	Peers() []*p2p.Peer
 	KeyManager() *crypto.KeyManager
-	Db() ethutil.Database
+	BlockDb() ethutil.Database
+	StateDb() ethutil.Database
 	EventMux() *event.TypeMux
 	Whisper() *whisper.Whisper
 	Miner() *miner.Miner