added: privileges (user, groups, permissions)

(not finished yet)
       classes: User, Group, Users, Groups, UGContainer
changed: Dir class into Dirs


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@467 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/error.h

@@ -33,18 +33,25 @@ public:
 		db_incorrect_login,
 		db_more_than_one_login,
 		db_err_currval,
-
-		
+		no_cookie,
 		incorrect_dir,
+		cant_change_user,
+		cant_change_group,
+		cant_change_privileges,
+		permision_denied,
 		
 		unknown = 1000
+		
+		
 	};
 
 	 
 	Error();
 	Error(Code c);
 	Error(int i);
+	Error(const Error & e);
 	Error & operator=(Code c);
+	Error & operator=(const Error & e);
 
 	operator int() const;