Don't reset transactionID when reopening TCP connection

client.go

@@ -37,7 +37,7 @@ func (m *Mbclient) closer() {
 
 	<-m.t.C
 	m.conn.Close()
-	m.transactionCounter = 0
+	//m.transactionCounter = 0
 	m.wg.Done()
 }