2003-03-30  Michael Natterer  <mitch@gimp.org>

	* app/core/gimpimage-resize.c (gimp_image_resize): fixed to check
	the *new* guide position to be within bounds, not the old
	one. Cleanup.

	* app/core/gimpimage-undo-push.c (undo_pop_image_guide): undo
	guide removal and moves manually instead of calling
	gimp_image_[add|move]_guide() because the latter may run into
	g_return_if_fail(position <= gimage->width/height) if the undo
	step is part of a resize or crop undo group.