Tue Feb 10 15:01:44 1998  Owen Taylor  <owt1@cornell.edu>

	* gtk/gtkobject.c gtk/gtkobject.h: Add a DestroyNotify
	field, and gtk_object_set_data_full() to match.

	* gtk/gtkobject.c (gtk_object_finalize): ObjectData structures
	were being added to a free list, then forgotten about. Just
	rely on GMemChunk instead.