added: SessionContainer special container used by SessionManager

sessions are indexed by id and time (last used time)
changed: old sessions are deleted
       parameter: session_max_iddle in the config file
added: function 'who'


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@483 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/requestcontroller.cpp

@@ -145,6 +145,7 @@ void RequestController::Loop()
 			// and then BaseUrlRedirect() will be called (for performance)
 			if( !BaseUrlRedirect() )
 			{
+				session_manager.DeleteOldSessions();
 				session_manager.SetSession(); // set request.session as well
 				request.session->CheckTimers();
 
@@ -177,3 +178,16 @@ void RequestController::Loop()
 		}
 	}
 }
+
+
+
+SessionContainer::Iterator RequestController::SessionBegin()
+{
+	return session_manager.SessionBegin();
+}
+
+
+SessionContainer::Iterator RequestController::SessionEnd()
+{
+	return session_manager.SessionEnd();
+}