relax SVN archive

Renamed the _override() method to setup().

Split the software GUI element into the base_list base GUI listing element.

This base class will be useful for abstracting many of the list GUI element methods.

Edits to the software listing GUI element.

Created a GUI element for listing and setting the software used in the analysis.

This will be used in the BMRB export window.

Created a GUI element for listing and setting molecule attributes.

This will be used in the BMRB export window.

The lists in the GUI user function descriptions are no longer separated by blank lines.

This allows long lists to fit much better into the wizard windows.

Resized the bmrb.thiol_state GUI user function wizard.

More improvements for the bmrb user function definitions.

The GUI user function objects can now be called with the wx_wizard_sync and wx_wizard_modal args.

This is used to force the user function to operate synchronous or asynchronous mode, or to force the
user function wizard to be modal. This will allow a number of hacks to be avoided throughout the
GUI!

Added a check to the bmrb.write user function to see if the file name has been supplied.

This results in a nicer message for the GUI.