Merge branch 'develop' into poc8

cmd/evm/main.go

@@ -141,9 +141,7 @@ func (self *VMEnv) Transfer(from, to vm.Account, amount *big.Int) error {
 }
 
 func (self *VMEnv) vm(addr, data []byte, gas, price, value *big.Int) *core.Execution {
-	evm := vm.New(self, vm.DebugVmTy)
-
-	return core.NewExecution(evm, addr, data, gas, price, value)
+	return core.NewExecution(self, addr, data, gas, price, value)
 }
 
 func (self *VMEnv) Call(caller vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error) {