constructors. There is no backward compatibility. Not everything has
been tested.
* aiff.{py,doc}: deleted in favor of aifc.py (which contains its docs as
comments)
* Fixed calendar.py, mimetools.py, whrandom.py to cope with time.time()
returning a floating point number. (And fix old bug in calendar)
* Add recursion level to mainloop.mainloop(), to make it reentrant.
* Many modules: fixes for new, stricter, argument passing rules
(most changes were automatic ones -- not all of this is tested!).
* gwin.py: now uses mainloop.py for its main loop and window admin.
* mainloop.py: always call dispatch() with event as a tuple!
* Fix bug in pdb's 'clear' command -- don't set the bpt but clear it!
embryonic facility for pseudo-modal dialogs.
* stdwinevents.py: added modifier masks for key/mouse events
* renamed exceptions in nntplib.py
* Changed string.join() to call string.joinfields() to profit of
strop.joinfields()
