- *Handle_for : remove the unused TO_BE_USED_ONLY_WITH_CONSTRUCT_WITH stuff
(obsoleted by previous change)
- *Handle_for : add swap() member and global functions.
- *Handle_for : initialize_with() is deprecated, use operator=(T) instead.
constructing, so that it works correctly after Handle_for has been default
constructed. There's a new way of constructing a Handle_for :
Handle_for(TO_BE_USED_ONLY_WITH_CONSTRUCT_WITH) followed by
construct_with(), which is supposed to produce more efficient code.
Simple_handle_for also accepts it.