2003-12-01  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpimage.c: added a default implementation of
	GimpImage::mode_changed() which reallocates the projection.

	* app/core/gimpimage-convert.c (gimp_image_convert)
	* app/core/gimpimage-undo-push.c (undo_pop_image_type): removed
	explicit calls to gimp_image_projection_allocate().