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

content/content.h

@@ -53,6 +53,7 @@ class Content
 	void FunMkdir();
 	void FunDefault();
 	void FunRun();
+	void FunWho();
 	
 	
 	void PostFunLogin();