changed the algorithm how sessions work:

- if the IP is banned or there is no a winix function then we set a temporary session
- else
  if there is a session's cookie sent by the client then:
   - if the cookie is a correct session's cookie then we set the session from the cookie
   - or if the cookie is not a correct session's cookie (e.g. session expired) and the winix function
     requires a cookie then we set a new session
   - or if there is no cookie sent then if a winix function requires a session we create a new session

  if there was an error creating a new session or event counters reach a ban limit then a temporary session will be used





git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1115 e52654a7-88a9-db11-a3e9-0013d4bc506e

winixd/functions/functions.cpp

@@ -396,6 +396,7 @@ bool was_default_function = false;
 		SetDefaultFunction();
 	}
 	
+	// callback for plugins can set a different status
 	if( cur->request->status != WINIX_ERR_OK || !cur->request->redirect_to.empty() )
 		return;