Log message

* Fixed leaks in Misc.after, Misc._bind, Misc.unbind and
Misc.unbind_all, testes for all these except the first have been added;

* The parameter needcleanup used by some methods in Misc has been
renamed to widgetcmd to indicate where the command should live;

* Misc.deletecommand has been renamed to Misc._deletecommand since it is
not supposed to be called by anyone outside Tkinter;

* New method added in Misc: Misc._bind_names that extracts the names of
the registered commands according to the format used by Misc._bind;

* Do not expect a funcid from Misc.bind when creating a new binding
anymore, it is not supposed to help you.

	Modify	/branches/Tkinter/Tkinter.py	diff
	Modify	/branches/Tkinter/test/test_bind.py	diff