* doc/tmpl/*: updated

	* src/glade-fixed.[ch], src/glade-widget.[ch]:
	  Improved, now made replace_child a vfunc... fixed some
	  event related bugs.

	* src/glade-gtk.c, widgets/gtk+.xml.in: Added free-form placement
	  for GtkTable widget.

	* src/glade-utils.c: added glade_util_deep_fixed_event(), used to
	  propagate events down to fixed containers that dont have windows.