relax SVN archive

Fix for the Value.SetValue() method - a variable was mistyped.

Redesigned the free file format window.

The settings module has been renamed to components.free_file_format, as it simply contains the free
file format window. This renaming is in preparation for shifting all of the free file format code
into this module to create a special GUI element object for it, rather than being part of the wizard
page code base.

The Base_window code has been merged into the Free_file_format_window code, as no other windows use
it any more.

Eliminated the ancient unused load_sequence() GUI element.

This was part of the settings menu in the original version of the GUI, but now has no purpose.

Converted the sequence user functions to the auto-generation design.

The model_selection user function now defaults to AIC.

Converted the results user functions to the auto-generation design.

Fix for the Analysis_controller.on_page_changed() method for reset events.

The relax data store now always has a ds.relax_gui object!

Fix for the post_reset() method of the Analysis_controller object.

This unregisters all the analyses from the observer objects, and calls the set_init_state() method
only once all analysis pages are deleted. This in combination with the synchronous reset user
function calling prevents the GUI from blowing up!

Fix for the modifiable attribute list in the uf container.

The reset user function is now called in synchronous mode in the GUI!