relax SVN archive

The wizard window _cancel() method now calls the current page's on_next() method.

This allows the page to clean itself up.

The pipe.delete user function now operates synchronously in the GUI to avoid the GUI blowing up!

The GUI analysis pipe_deletion() method now works with pipe bundles instead of pipe themselves.

This is because the analysis tabs are now associated with the bundles rather than pipes.

The 'bundle' arg is now functional in the model_selection user function back end.

The user function pages are now registered and unregistered with the 'gui_uf' observer object.

This allows the ComboBox args to be properly updated with asynchronous user function calls. The old
update method suffered from racing and hence often updated before the user function had executed.
Now the on_display() method registers the GUI user function page update_args() method, and the
on_next() method unregisters it, allowing the observer to update the page only when it is visible to
the user.

Whitespace fix.

Added the 'bundle_to' arg to the pipe.copy user function back end.

This arg is now functional.

The dauverge_protocol auto-analysis now uses the new 'bundle' user function args.

This is used in the pipe copying to place the newly created pipe and in the model selection, both so
that all pipes created during the analysis are located within the pipe bundle reserved for that
analysis.

The GUI user function window titles are now set to the 'title_short' value.

This is because the long title can be far too long for a GUI window title!

The long title or synopsis is now added to the GUI user function description text as italic text.