2004/12/29 10:52:48 fs 1.2.6.3: #i39451# support for property change notifications
2004/12/29 10:17:35 fs 1.2.6.2: #i10000# unxsols4 didn't like the throw specifications in function declarations being template arguments
2004/12/28 09:38:05 fs 1.2.6.1: #i39451# derive from another PropertySet helper class, which also allows listener handling