start working on User and Group classes

- User and Group has been moved to 'models' directory
- removed UserPass struct (passwords fields were put to User struct)
not working yet, we need support for binary blobs in morm

winixd/functions/timezone.cpp

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2012-2014, Tomasz Sowa
+ * Copyright (c) 2012-2021, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -64,7 +64,7 @@ void TimeZone::MakePost()
 		if( system->time_zones.HasZone(tz_id) )
 		{
 			cur->session->puser->time_zone_id = tz_id;
-			db->ChangeUserTimeZone(cur->session->puser->id, tz_id);
+			cur->session->puser->update();
 		}
 		else
 		{