2004-07-08  Sven Neumann  <sven@gimp.org>

	* app/config/gimpconfig-deserialize.c
	* app/config/gimpconfig-serialize.c: removed redundant casts.

	* app/widgets/gimpsessioninfo.[ch]: added convenience functions to
	get and set aux-info based on object properties.

	* app/widgets/gimphistogrameditor.c: use the new functions to save
	a histogram's channel and scale in the sessionrc.