2001-04-16  Michael Natterer  <mitch@gimp.org>

	First attempt to get the docks session managed:

	* app/gimprc.c: new gimprc type "new-session-info" which will soon
	replace the original one.

	* app/menus.c
	* app/gui/dialogs.c: s/_/-/g in all dialog identifier strings.

	* app/session.[ch]: call the dialog factory's session functions.

	* app/test_commands.c: use the dialog factory to create the tabs.

	* app/gui/dialogs-commands.c
	* app/gui/dialogs-constructors.[ch]: the constructors return widgets,
	not dockables now.

	* app/widgets/gimpdialogfactory.[ch]: maintain a list of dialog
	factories in the class struct. Added ugly code to do the GimpDock
	session management.

	* app/gui/gui.c
	* app/widgets/gimpdock.c: changed accordingly.