2006-05-23  Sven Neumann  <sven@gimp.org>

	It makes more sense to have GimpData::dirty indicate a name change
	than to invalidate the previews whenever the name changes.

	* app/core/gimpdata.c: call gimp_object_name_changed() from
	gimp_data_real_dirty() instead of implementing
	GimpObject::name-changed and calling gimp_data_dirty() from there.

	* app/core/gimpbrushclipboard.c
	* app/core/gimppalette.c
	* app/core/gimppatternclipboard.c: call gimp_data_dirty() in place
	of gimp_object_name_changed().

	* app/core/gimpbrushgenerated.c (gimp_brush_generated_dirty):
	chain up unconditionally.