2004-09-03  Michael Natterer  <mitch@gimp.org>

	* libgimpbase/gimpprotocol.h (struct _GPConfig): replaced the
	never used "gdouble gamma" with 8 reserved gint8 and stuffed two
	gint8 behind "gint8 show_tool_tips" where they fit in in a binary
	compatible way due to 32bit aligning of the following "gint32
	min_colors". Use the latter ones for "check_size" and
	"check_type".

	* libgimpbase/gimpprotocol.c (_gp_config_read,write): changed
	accordingly to pass the new stuff over the wire.

	* app/plug-in/plug-in-run.c: ditto. Pass the transpareny values
	from GimpDisplayConfig to plug-ins.

	* libgimp/gimp.[ch] (gimp_config): remember the new config values.
	(gimp_check_size,type): new functions returning the new config values.

	* libgimp/gimpdrawablepreview.c (gimp_drawable_preview_init):
	use the new values to configure preview->area accordingly.