2005-04-05  Sven Neumann  <sven@gimp.org>

	* app/core/core-enums.[ch]
	* app/core/gimpimage.c
	(gimp_image_remove_layer, gimp_image_remove_channel): handle a
	floating selection attached to the layer or channel that is being
	removed.  Fixes bug #168582 but doesn't handle floating selections
	attached to layer masks.