and minor other changes.

  return NULL for malloc(0) or realloc(p, 0).  (This should be done
  differently than wasting one byte, but alas...)
* Moved "add'l libraries" option in Makefile to an earlier place.
* Remove argument compatibility hacks (b) and (c).
* Add grey2mono, dither2mono and mono2grey to imageop.
* Dup the fd in socket.fromfd().
* Added new modules mpz, md5 (by JH, requiring GNU MP 1.2).  Affects
  Makefile and config.c.
* socketmodule.c: added socket.fromfd(fd, family, type, [proto]),
  converted socket() to use of getargs().

Do import stdwingl

cdplayer.py: It is now also possible to give the CD's TOC as argument
to init().  The TOC is a string consisting of 2 digits giving the
number of tracks and then for each track the length of the track as
number of minutes and number of seconds (2 digits each).

cddb.py: Interface to the .cddb directory.  Usage is the same as for
cdplayer.py.

Adapt to new, stricter, rules for argument passing.

* 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!

functional)

Real important: turn off FIELDDROP in Vrec.

converted socket() to use of getargs().