2002-05-15  Sven Neumann  <sven@gimp.org>

	* app/config/gimpconfig.[ch]: added a return value to indicate
	success of GimpConfigInterface::serialize. Added a GimpConfigError
	value for write errors and check the return value of all write()
	calls. Allow to specify file header and footer when calling
	gimp_config_serialize().

	* app/config/gimpconfig-serialize.[ch]
	* app/config/gimprc.c: changed accordingly.

	* app/core/gimp-documents.[ch]: new files with functions to handle
	gimp->documents.

	* app/core/gimpdocuments.[ch]: removed ...

	* app/core/gimpdocumentlist.[ch]: ... and added under this name.
	Implements a generic document list.

	* app/core/gimp-parasites.[ch]: new files with functions to handle
	gimp->parasites.

	* app/core/gimpparasite.[ch]: removed.

	* app/core/gimpparasitelist.[ch]: nothing more than a generic
	parasite list.

	* app/undo.c
	* app/core/Makefile.am
	* app/core/core-types.h
	* app/core/gimp.c
	* app/core/gimpdrawable.c
	* app/core/gimpimage-merge.c
	* app/core/gimpimage.c
	* app/core/gimpitem.c
	* app/file/file-open.c
	* app/file/file-save.c
	* app/gui/file-open-dialog.c
	* app/pdb/parasite_cmds.c
	* tools/pdbgen/pdb/parasite.pdb: changed accordingly.