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.h

@@ -45,7 +45,13 @@ public:
 	void Close();
 	void Loop();
 
+
+	SessionContainer::Iterator SessionBegin();
+	SessionContainer::Iterator SessionEnd();
+
 };
 
 
+extern RequestController req_controller;
+
 #endif